WO1996009902A1 - Produit chemique de traitement de dechets et procede de mise au rebut desdits dechets - Google Patents

Produit chemique de traitement de dechets et procede de mise au rebut desdits dechets Download PDF

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Publication number
WO1996009902A1
WO1996009902A1 PCT/JP1995/001966 JP9501966W WO9609902A1 WO 1996009902 A1 WO1996009902 A1 WO 1996009902A1 JP 9501966 W JP9501966 W JP 9501966W WO 9609902 A1 WO9609902 A1 WO 9609902A1
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WIPO (PCT)
Prior art keywords
water
water glass
sodium
additive
waste
Prior art date
Application number
PCT/JP1995/001966
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English (en)
Japanese (ja)
Inventor
Hidekazu Kuromatsu
Toru Yoshida
Takuji Nomura
Masakazu Uekita
Original Assignee
Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Kanegafuchi Kagaku Kogyo Kabushiki Kaisha filed Critical Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
Priority to EP95932921A priority Critical patent/EP0787540A1/fr
Publication of WO1996009902A1 publication Critical patent/WO1996009902A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/08—Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state

Definitions

  • the present invention relates to a method for treating and eliminating waste, which is a crane for quantifying harmful substances in waste containing power such as calcium hydroxide, calcium 18 fluoride, and calcium fluoride.
  • waste containing power such as calcium hydroxide, calcium 18 fluoride, and calcium fluoride.
  • ⁇ Method and particularly contains calcium hydroxide such as calcium hydroxide, calcium oxide, and calcium, and it is difficult to suppress the elution of lead (Pb). Pb in waste fly ash etc.
  • the present invention relates to a waste treatment agent and a waste treatment method effective for stabilizing harmful gold. Background art
  • cement is used as a treatment agent, cement and cement are mixed, water is added, and the building is mixed, cured and solidified.
  • a method of preventing and stabilizing JR elution is used.
  • JP-A-53-6270 describes that in »3 ⁇ 4 or lime cake MS discharged from a sugar mill, water glass and charcoal ⁇ clay were discarded. Is disclosed. However, carbonated water acts as ft for water glass, so if these S compounds are converted before ffiffl, the water glass will gel and cannot be used as a one-liquid treatment agent. There is a major problem with gender o
  • the present invention can surely make use of various kinds of waste containing calcium hydroxide, calcium oxide, calcium chloride, and other calcium-containing compounds. It is intended to be a deer, a tos agent and a « ⁇ ⁇ « yi ⁇ 3 ⁇ 43 ⁇ 4r » ⁇ which can be stabilized so as not to infiltrate and invade. Disclosure of the invention
  • waste containing calcium compounds such as calcium hydroxide, calcium oxide, and calcium clay is mated with water glass to prevent elution of ⁇
  • the waste treatment agent according to the present invention for the purpose of the present invention is mainly composed of water glass water, and at least one of the following ingredients or additives.
  • the above 15 additive A is at least one selected from an acid, an alcohol, a polyvalent metal salt, a polyhydric alcohol ester, a carbonate, a ⁇ ester, a diacid ester, or a dialdehyde.
  • the additive B is at least one of a substance which forms a water-insoluble or hardly soluble water-soluble compound in the form of ⁇ with a calcium ion or an ion itai ⁇ which forms a calcium ion.
  • the second waste disposal according to the present invention mainly uses water glass water. It is obtained by further adding an additive c consisting of mt to the treating agent
  • the third waste i3 ⁇ 4a agent according to the present invention is a monovalent monovalent agent which does not react with calcium ions to form a water-insoluble or hardly soluble calcium compound in a treating agent having water glass water as a main component.
  • the metal x further comprises an additive D comprising at least one of ammonia.
  • the waste ias ⁇ ft according to the present invention is to knead the waste and the above-mentioned material treating agent, and to knead the waste.
  • the aqueous solution of water glass used in the present invention may be a general-purpose aqueous solution of water glass.
  • Stabilizing performance such as ferrous metal JS, which can be exemplified as alkaline components such as Na, K, and ammonia, can be easily obtained.
  • Na that is, sodium silicate (Na ? 0 ⁇ nSi i) is more preferable.
  • the water glass water port liquid is represented by ⁇ : 0 ⁇ n S i ⁇ ln (S i 0 3 ⁇ 4 / M 2 Omt is roughly in the range of n-0.5 to 4.2 in commercial products. When n is 2.0 or more, the leaching performance of harmful heavy metal fart etc.
  • n is excellent, and when n is less than 2.0, the stability in water is poor and the temperature in winter decreases. There is a risk that solids in the aqueous solution of water glass may precipitate depending on the storage condition, and therefore, it is usually more preferable to use aqueous solution of water glass No. 3 of the JIS standard. There is no problem even if the water glass used in contains iron unavoidable impurities.
  • stabilization of harmful metals in water glass water is achieved by entrapping harmful metals by a gel reaction between water glass aqueous solution and polyvalent ions such as calcium ion dissolved from mm-size materials, and Force, ', force considered to be generated by the adsorption of harmful gold to the generated gel
  • polyvalent ions such as calcium ion dissolved from mm-size materials
  • Force, ' force considered to be generated by the adsorption of harmful gold to the generated gel
  • the effect may or may not be fully exhibited. This is thought to be because the gel formed by water glass water and calcium ions 3 ⁇ 46 takes a different form depending on the calcium ion i, and this difference in form also affects the entrapment and adsorption of harmful metals.
  • ⁇ JD in aqueous water glass solution inside 3 ⁇ 4 D agent ⁇ is composed of acid, alcohol, polyvalent metal ⁇ , polyhydric alcohol ester, carbonate, intramolecular ester, dibasic ester, dialdehyde, etc.
  • Water iSft and Sit The solid monomer in water glass water partially polymerizes, so that the solid content of water glass is multimerized.
  • the multimerized water glass reacts with only a small amount of calcium 4 ⁇ to form a gel, and further forms a surface by further processing, so that the reaction rate between the water glass and the calcium compound in the substance increases, Harmful gold such as Pb can be introduced and solidified.
  • the additive B in the process of reacting with calcium ions reacts with calcium ions to form a water-insoluble or hardly soluble calcium compound, or by adding calcium ions to form water glass water and calcium ions. It is possible to optimize the S-M function of As mentioned earlier, garbage was collected at the air filter and bag filter because slaked lime was blown at the decorative garbage and other parts to suppress the hydrogen gas S generated during operation. Contains a considerable amount of calcium compound power ⁇ , which is a high S calcium ion ⁇ . By adding additive B to the waste treatment agent, the amount of calcium ions is reduced. To 3 ⁇ 41 [Translation, water glass water ⁇ 3 ⁇ 4 3 ⁇ 4 3 ⁇ 4 3 ⁇ 4 ⁇ ⁇ ⁇ 2 2 ⁇ ⁇ 2 J.
  • the effective stabilization performance of water glass water depends on the entrapment of harmful metals due to the gelation reaction between the water glass aqueous solution and polyvalent ions such as calcium ion eluted from waste. It is thought to appear.
  • the gelled RiC of the water glass solution must proceed faster than the elution of the genus, and the harmful metal must be encapsulated.
  • the third treating agent of the present invention is obtained by adding an additive D consisting of at least one of ammonium clay to the monovalent gold JS3 ⁇ 4X while treating water glass water as a main component.
  • the monovalent gold ion or ammonium ion released from D increases the degree of ion S in the aqueous solution of the treating agent, and due to its precipitation effect, the surface shape of the aqueous solution of water is easily precipitated. For this reason, it is considered that when the water glass in the treated water reacts with the polyvalent metal ion, such as the lysium in the fly ash, the gel becomes faster and the Pb stabilization performance is improved. . However, when the additive amount of Additive D was too large, the ion concentration during the transformation approached saturation, and the solid content of the water glass aqueous solution precipitated due to the sedimentation effect of the coexisting ions in the aqueous solution of the treating agent.
  • the acid is added to 100 parts of cation (sodium in the case of water glass or sodium oxide, the same applies hereinafter) in the aqueous solution of water glass with respect to 100 parts of acid.
  • the hydrogen ions (H + :) released by the methane are over 50 mo 1 part. Since the pH is connected to the neutral region, the treatment agent may gel instantaneously or after a few minutes. . Although the gelled treating agent can be expected to have some Pb stabilizing performance, it is not sufficient. Also, it is not possible to treat liquid This is unfavorable because it may cause inconvenience such as clogging of the piping of ftww ⁇ ⁇ »or the mixing agent for the processing agent. For this reason, the addition of the acid s is preferably such that the hydrogen ion (H +) of the acid is 5 Omo 1 part or less per 1 part of the cation 10 OHIO in the aqueous solution of water glass.
  • the acid may be water or water glass water, as long as it releases water cable ions ( ⁇ 10), such as acetic acid (HC 1), acetic acid (HNO a ), and phosphinic acid.
  • water cable ions such as acetic acid (HC 1), acetic acid (HNO a ), and phosphinic acid.
  • any one of acid, nitric acid, phosphoric acid, sulfuric acid, ft acid, ft ⁇ , and oxalic acid it is preferable to use any one of acid, nitric acid, phosphoric acid, sulfuric acid, ft acid, ft ⁇ , and oxalic acid. If necessary, two or more different kinds of acids can be used in combination. .
  • the addition of polyvalent metal causes the addition of mo 1 part of polyvalent metal ion of polyvalent metal and its valence to 10 parts of cation in water glass solution. If the contact is carried out beyond 5 Omo 1, the amount of metal ions becomes added S that may cause gelation after or immediately after the treatment. A gelled treating agent is not preferable because it may have the same reason as described above. For this reason, the amount of the polyvalent salt added is based on 10 parts of the cation in the water glass water ⁇ , and the amount of the polyvalent metal ion of the polyvalent metal clay is less than 3% ⁇ 5 Omo An amount of 1 part or less is preferable.
  • the polyvalent metal is magnesium, calcium, strontium, barium, iron, aluminum, or chloride, nitrate, carbonate, phosphate and the like.
  • polyvalent gold clay is used in water or water glass water. It is necessary that it dissolves quickly, reacts with water glass, and the solid content of water glass becomes multimeric. From the above, considering the solubility of polyvalent metal clay in water glass water and the ease of industrial availability, among the above, among the above polyvalent metals, magnesium oxide, calcium clay, Clay ⁇ I * (II), iron chloride (aluminum oxide, magnesium nitrate, calcium nitrate, experiment (II), iron nitrate (111), aluminum nitrate, magnesium usate, sulfate)
  • a of the treating agent according to the present invention may be general-purpose ones, and the alcohol may be methanol ( CH S OH), ethanol (C, H 5 OH), polyhydric alcohol esters such as ethylene glycol diacetate (C 2 H, COCOCH,) 2 ), and triacetylene (C 3 H 5 (O COCHs) a), ethylene ((CH 2 0) 2 CO) as carbonate AO, rat-open ratatone (C ⁇ H 6 O t ) as intramolecular ester, and succinic acid dimethyl ester as disodium ester CH, OOC (CH 2 ) 2 COOC H 5 ), glutaric acid dimethyl ester (CHiOOC (CH 2 ) 3 COOCH,), and dialdehyde include glyoxal ((CHO) a).
  • X can be used as long as it dissolves in water glass water, reacts with water glass water, and solidifies water glass solids. It is also possible to use alcohol, polyhydric alcohol ester, carbonates, intramolecular ester, acid ester, and dialdehyde each in 2 g3 ⁇ 4 ⁇ ffi.
  • the additive amount of the additive A can be selected arbitrarily. When the water glass water and the inverting agent A are mixed, the MS agent is gelled immediately or after a few minutes. It is preferable to select tofi, which is less likely to be attached.
  • the first treating agent is selected from, if necessary, alcohol, polyvalent metal salt, polyhydric alcohol ester, carbonates, intramolecular ester, nm-acid ester, and dialdehyde.
  • 2 ® S ⁇ can be added to water glass water as an additive A ⁇ (ID is also possible.
  • the water glass solid content of water glass water (silicic acid * ⁇ ⁇ ⁇ in water glass water ffi, that is, M ( OS * and E * sum of S i 0 »amount; M Is the cation in water glass water, and so on.)
  • the amount of the above-mentioned additive B is in the range of 10 to 400 parts per 100 fifi ⁇ 5. If the amount of the additive B is less than 10 parts by weight, calcium The desired performance cannot be achieved due to the fiss * of the bion, which is not sealed, due to the small amount of L. Also, if it exceeds 40 OJtfiW, the elution prevention performance may be reduced.
  • the addition of sodium ion and potassium ion which are not common to lead ions, and the increase in ion intensity may increase the elution of lead ions. Additives in
  • Addition of B Jfc is the concentration of water glass water, composition of water glass water, Addition amount of aqueous solution of water glass, method of addition of additive B, Pb content in waste, calcium compound content, amount of harmful S-metal eluted from untreated waste, and It depends on the allowable amount of elution of harmful heavy metals etc. Practically, the harmful heavy is determined by the mixing ratio of the water glass aqueous solution and the additive B that has the JR stabilization starvation and the lowest cost. It is preferable to use the additive B in an amount of 15 to 280 double S3 ⁇ 45 with respect to a water glass solid content of 1003 ⁇ 4fiSP of the water glass aqueous solution, since good harmful direct metal elution prevention performance can be obtained.
  • the substance which reacts with calcium ions to form calcium which is insoluble or hardly soluble in water is, for example, tripotassium phosphate, sodium phosphate, triphosphate, and the like.
  • potassium, sodium, or ammonium phosphates, carbonates, calcium salts, carboxylates, or hydroxides are preferred.
  • tri-potassium phosphate, sodium triphosphate (sodium tripolyphosphate), hexasodium tetraphosphate (tetrapoly) It is more preferable to use any of sodium phosphate, sodium hexametaphosphate, sodium carbonate, sodium carbonate, sodium hydroxide, potassium hydroxide, fittirr sodium, and sodium oxalate.
  • Salts especially ft potassium, carbon sodium, or monovalent alkali metal as a substance that 3 ⁇ 4 ⁇ insoluble or soluble in water ⁇ ⁇ by ⁇ with calcium ion of additive B
  • a hydroxide particularly sodium hydroxide
  • charcoal »k-purple from jRffi can release water cord ions (IT) into the dissolved BS and cause a gelation reaction with water glass, so iiffl is used as a narrowing agent in a mixed system with water glass. Can not do it.
  • iiffl is used as a narrowing agent in a mixed system with water glass.
  • the jft acid salt, particularly potassium carbonate B or sodium flammate carbonate ions can be formed without gelling the water glass. This makes it possible to use one treatment agent, and to use a treatment agent that is more convenient than surgery.
  • lithium carbonate can be exemplified, but if the solubility is low and if the concentration is not sufficient when combined with the ilia agent, a precipitate is formed, which is practically convenient. Lack of sex.
  • a monovalent alkali gold JR hydroxide also exhibits the same effect as long as it can be converted into a hydroxide by dissolving.
  • the monovalent alkali metal hydroxide having the above-mentioned action include sodium hydroxide, potassium hydroxide, and lithium hydroxide.
  • a hydroxyl-based polyvalent metal salt when used, In this case, it acts as a gelling agent for water glass dewatering, and is not preferred because it may act as a catalyst and may gel during the storage period.
  • the mixing ratio of the water glass and the ft acid lithium is preferably in the range of solid content of water glass: potassium carbonate -90: 10 to 40: 60.
  • the distribution of potassium carbonate is less than this, but the supply of calcium ions is not 3 ⁇ 4 ⁇ , but the amount of calcium ion is more than this, and the relative amount of water glass is relatively small, so that the effect cannot be fully exerted.
  • the reason that the suitable mixing ratio cannot be specified is that the mixing ratio of ft3 ⁇ 4 differs depending on the ⁇ ® of the deer garbage to be applied, mainly calcium-containing S. The desired effect can be exerted on objects.
  • the water glass used in preparing the treating agent should be used as it is without diluting an industrially available stock solution of water.
  • potassium carbonate should be used to produce an aqueous solution with a ffiS degree as much as possible. Then, it is preferable to mix and use both of them. It is considered preferable that the concentration of the potassium water is 40% or more.
  • sodium carbonate Since sodium carbonate is delicate and low in solubility with potassium carbonate, sodium carbonate aqueous solution with a concentration of S is added to sodium urate urine * &, and sodium carbonate may precipitate.
  • the conditions under which such a phenomenon occurs vary depending on the mixing ratio of water glass and potassium ifttt. However, it is preferable to set the 25 ° C of the potassium water at the time of preparing the mixture to approximately 50% or less. It should be noted that, if the entire amount of potassium carbonate added to the water glass is not dissolved, the suspension is arranged: ⁇ is considered to be effective in consideration of the treatment agent and the like.
  • the mixing ratio of 2 ⁇ glass and sodium carbonate is preferably in the range of solid content of water glass: sodium carbonate -90: 10 to 40: 60, and more preferably 10 0 O of solid content of water glass.
  • water glass solid content: sodium carbonate 60: 40-50: 50.
  • the amount of charcoal is less than this, the capture of power calcium is not enough, while the amount of charcoal is relatively small. The effect is too small to fully demonstrate the effect.
  • the unsatisfactory ratio cannot be specified because the mixing ratio of ft is different depending on the amount of applied BS, mainly calcium content. Many processing agents have the above mixing ratio. * Is also preferable because it has a certain effect on the average waste in Japan.
  • the water glass used for converting the treating agent keeps the commercially available source of ice as it is, while the sodium carbonate is converted from an aqueous solution with a high concentration as much as possible. It is preferred to mix In order to convert the sodium carbonate aqueous solution with the highest degree of contact, it is only necessary to dissolve sodium acid in 40 or more heated water. At this time, the concentration of the B-form component becomes approximately 32 SS.
  • the hydrate's E ⁇ g power, 'less than this * &, is not calcium supplementation, but on the other hand, the water glass fiJ ⁇ , which exceeds this, is relatively small and does not sufficiently exert the metal elution prevention hardening. Because the mixing ratio varies depending on the type of waste to be recycled, mainly the calcium content, a favorable E ratio is not always possible, but the water glass form: sodium hydroxide-60: 40 The ratio 4 & »J is most suitable because it exhibits the effect of m3 ⁇ 4 on many average] ⁇ objects.
  • the aqueous glass solution used for preparing the treating agent be used as it is, without diluting an undiluted solution of an aqueous solution that is readily available. It is preferable to prepare ⁇ 3 ⁇ 4 and use both. In order to produce the highest fiS hydroxide ⁇ 3 ⁇ 4, the hydroxide may be dissolved in heated water.
  • the concentration of the aqueous hydroxide solution is preferably set to 20 Sfi SisUi.
  • the use of a suspended compound in which the total amount of hydroxide added to water glass water is not dissolved is also a category of the present invention.
  • the mixed water of the water glass water of the present invention and the carbonate X is a monovalent alkali metal JS hydroxide.
  • a salt of a structure may be precipitated.
  • Such as 3 ⁇ 41 ⁇ 2r, filter clogging, etc. Therefore, depending on the & 3 ⁇ 4 and S degrees of the environment, keep the water for a long time at all times, or heat to the place where the salt is deposited without preservation, and after " ⁇ or ⁇ 3 ⁇ 4 * ⁇ *
  • the value of S and the value of * / * are preferably in the range of 30 to 70. If the value is less than 30, it is difficult for the SSI to prevent clay precipitation of a high-concentration compound. Yes, and it takes a lot of time to close the deposited clay, but if it exceeds 70, it will be a geno that can be spread with the reaction product of air and water glass. Become.
  • potassium is selected as the carbonic acid
  • solubility of potassium carbonate is high.
  • An ion sequestering agent that sequesters calcium ions as the progenitor additive B is a substance that is generally known to be a polyvalent metal ion and sequester gold ions.
  • tetrapotassium diphosphate (potassium pyrophosphate), tetrasodium diphosphate or the like, which was previously described as a substance that is insoluble in water by being mixed with calcium ion to cause »soluble calcium formation ⁇ !
  • a chelating agent having the following formula: In view of the industrial availability, price, Pb stabilizing performance, and the like, ethylenediamine tetrapotassium, ethylenediamine tetrasodium sodium salt, 1-hydrid ⁇ xhetan-1 , Potassium 1-diphosphonate, sodium 1-hydroxyxetane 1,1-diphosphonate, sodium dimethyldithiocarbamine, potassium getyldithiocarbamate, sodium dibutyldithiocarbamine preferable.
  • an additive ⁇ a substance which reacts with calcium ions to form a calcium compound insoluble in water, a substance which forms a soluble calcium ion ⁇ !, or an ion sealer which seals calcium ions according to ⁇ ⁇
  • T which is insoluble in water, acts as an additive B, such as hardly soluble calcium salt or seals off calcium ions, and is further imparted to the action of additive A. It is filed that the Pb stabilization performance of the treating agent can be expected to improve.
  • the solid content of the water glass aqueous solution needs to be multimerized by the action of the additive A.
  • the water-glass water i & ffi and the additive ⁇ caused the poly-S-formation reaction to proceed too much 3 ⁇ 4 ⁇ , or if the amount of the additive B was too large, a gel of water glass was precipitated, ie, It is impossible to encapsulate harmful gold B in waste, because it solidifies only with water or the solid content of water glass water is precipitated due to the salting-out effect of ⁇ ions in the water. Therefore, pay close attention to the preservation of the treatment agent (storage form, storage location, storage censorship, etc.), the additive ⁇ ⁇ to be added and the ⁇ of the additive ⁇ , and the amount of the additive, and 3 ⁇ 43 ⁇ 4, optimal for the selected one I need to SWS.
  • the treatment agent consisting mainly of water glass water ⁇ and additive A and additive B as fiJ ⁇ component is stably stored in a state where no industrial problem occurs.
  • the main constituents such as the above, Glucon 3 ⁇ 43 ⁇ 4, acid salt, benzoic acid: at acid, lignin sulfonate, polysaccharide, and Is from the group consisting of monovalent cation and hydroxylated ion :!
  • Additive E stabilizes the processing of water glass water ⁇ 3 ⁇ 4, additive ⁇ and additive ⁇ as a main rod fiJM ⁇ as a liquid. It is presumed that this is due to the effect of chelating additive B to increase the amount of K, or the effect of reducing the balance of the load and PH in the treating agent to M nodes.
  • Addition of these stabilizers; 1 ⁇ 2 and addition: a depends on the properties of the stabilizer to be added, the stabilization of the desired treatment agent, etc., but typically includes water glass water, acid, alcohol, After the reaction with polyvalent gold salts, polyhydric alcohol esters, carbonates, intramolecular esters, acid esters, dialdehydes, etc. has progressed sufficiently and the multimerization of the solids in the aqueous solution of water glass has been completed It is preferable to add the stabilizing agent and store the treatment.
  • the amount of ⁇ ! Self-stability is a small amount of ⁇ in order to achieve the desired uniformity of the treatment agent. In the above fB stabilizing agent, the addition amount becomes excessive.
  • the addition S is the solid content of water glass water (M 20 The sum of the quantity and the S i 0 2 quantity) is about 20 weight ⁇ or less for 100 Sfi3 ⁇ 4P. If the addition exceeds this range, the gelling of the treatment agent may progress, and the stability of the treatment agent may decrease.
  • 1X consisting of monovalent cations and hydroxide ions is converted to sodium hydroxide (N a OH), potassium hydroxide (KOH), and aqueous ammonia (NH, OH) are preferred.
  • the method of adding the treatment agent to the waste in the method according to the present invention in which the water glass water and the agent A or # 0B as main components are converted into a substance and the item # 4 is added, is as follows.
  • Aqueous solution of water glass which is the main component of « ⁇ , and additives A and B Separately, add water glass water to waste, mix if necessary, add additives A and B,
  • the method must be selected according to the properties of the L agent, the processing equipment, and the like.
  • the multimerization reaction force between the water glass water and the additive A ⁇ ra power ⁇ guaranteed when progressing sufficiently> is effective.
  • this treating agent in order for this treating agent to exhibit the prescribed performance, it is necessary that the solid content in the water glass water becomes 3 ⁇ 4 ⁇ with the additive A to form a polymer. If the mixture is added to the mixture after the addition of a and ⁇ , the multimerization reaction is considered not to proceed sufficiently, and the harmful metal stabilizing performance of the treatment may not be exhibited. Therefore, it is preferable to mix the aqueous glass solution and the additive A in the main bonding and then add the waste to the waste after 5 minutes of U: g.
  • aqueous glass solution which is the main component of the treatment S3 ⁇ 4, fiJ ⁇ , and the additives A and B
  • polyvalent metal is contained as additive A
  • additive B is mixed with polyvalent metal ion in polyvalent metal clay and ⁇ .
  • water-insoluble or hardly soluble polyvalent gold This is a preferred form of the waste disposal method because there is a possibility that the polyvalent metal ion cannot exhibit a predetermined harmful metal stabilization.
  • the method of (2) in which the water glass water, the second component, and the third are combined immediately before the addition to the waste, and then immediately added to the waste.
  • the water glass water and the second component do not instantaneously form a gel, or if the multivalent gold salt of the additive A and the additive B It reacts instantaneously and does not convert insoluble or hardly soluble polyvalent R ⁇ or does not block polyvalent metal ions. That is, it is possible to stably store the treating agent as one solution: it is a function, but it is a polymer of the aqueous solution of water and the second component. It is effective for Sit that is performed after the treatment agent is mixed into one liquid and before it is added to the product, and that the treatment asii does not gel before adding to the product.
  • the method (3) is based on the fact that the aqueous glass solution and the additive A are combined to form a gel instantaneously, or that the polyvalent metal of the additive A and the additive B are mixed. It is instantaneous to react with water to insoluble or polyvalent JR compounds, or to select multivalent gold ions to be removed. In this case, water glass water j ⁇ 3 ⁇ 4 is added to J3 ⁇ 43 ⁇ 4H3 ⁇ 4, and if necessary, ⁇ 3 ⁇ 4 * is added.Additive ⁇ and additive ⁇ do not elute harmful metals in the substance until added.
  • the second waste ys agent of the present invention is the water glass solid content of the water glass wetted liquid 1
  • the coagulant may not necessarily completely dissolve in the water glass water, but it is preferable to be able to add uniformly to the J ⁇ -substance, and to add it uniformly. It is more convenient to dissolve.
  • water may be added to the treatment, or the coagulation sediment may be dissolved in water in advance and mixed with water glass to form treatment S ⁇ (l).
  • the coagulating sedimentation agent used in the treatment S3 ⁇ 4 specifically, aluminum polychloride , Sulfate band, polyacrylamide, sodium polyacrylate, potassium sulfamate, polymethacrylate, polyvinyl alcohol, methylcellulose, hydroxypropyl methylcellulose, hydroxyethyl methylcellulose, carboxymethylcellulose, etc.
  • polyaluminized aluminum, potassium rubamate, polyacrylamide, polyacryl soda, polyvinyl alcohol, methylcellulose, and potassium ruboxymethylcellulose are more preferable. It should be noted that two different substances may be used in combination from among the above coagulations depending on the conditions.
  • the addition of the monovalent gold clay as the additive D is based on the cation of the water glass water port (sodium in the case of water glass water or sodium monoxide, hereinafter referred to as iH).
  • iH sodium in the case of water glass water or sodium monoxide, hereinafter referred to as iH.
  • Monovalent gold ions released by monovalent gold clay from 100 Omo 1 city were mixed with 1 part of 100 Omo. ⁇ Because of approaching saturation, the solid W of water glass water is easy to precipitate.
  • the treating agent water from which the solid content is precipitated becomes a liquid: ⁇ form, and & S3 ⁇ 4 »J It is not preferable because it may cause inconvenience such as the connection of pipes, deer and WUT iStt, etc.
  • the addition of monovalent gold S is based on 1 part of cations in water ft. It is preferable that the amount of monovalent gold ions in the monovalent gold clay be less than 1 part of 10 Omo.In addition, if the amount of added monovalent gold is small, it can be expected to be effective. Therefore, the Pb stabilizing performance of the agent may not be sufficiently improved.Therefore, the amount of the monovalent gold salt added should be 1 to 100 parts of cation in water glass water. It is preferable that the monovalent metal ion of the monovalent gold salt has 5 mo 1 node or more.
  • the amount of the ammonium carrier added as the additive D is such that the amount of the ammonium ion filled with ammonium is at least 5 mo 1 part and the amount is 10 O 1 Parts or less is preferred.
  • the monovalent metal salt is one that releases monovalent metal ions in water or water glass water and reacts with calcium ions to be insoluble or hardly soluble in calcium.
  • Any compound that does not produce a compound, sodium or power Examples thereof include chloride, chloride, and nitrite. Further, in consideration of the availability, price, Pb stabilizing performance, etc., it is preferable to fitffl any of sodium hydride and potassium chloride. Furthermore, it is also within the scope of the present invention to use two or more monovalent metals having different as in accordance with the following.
  • ammonium any one which is released in water or an aqueous solution of water glass and releases ammonium ions, and which does not react with calcium ions to form insoluble or hardly soluble calcium in water.
  • a clay ammonium it is preferable to use a clay ammonium.
  • two or more different types of ammonium salts can be used in combination depending on the conditions.
  • 3 ⁇ 43 ⁇ 45 of these additives A, B, C, 0 is the concentration of water glass water, its, ⁇ ⁇ ⁇ Dfi of water glass water Sft to waste, the method of adding additive A, Pb content in the material, Calcified ⁇ «I containing S, the amount of harmful metal eluted from waste in the case of no treatment, and the allowable leaching amount of harmful metal of interest, for example, depending on legal regulations such as ⁇ t ground
  • it is necessary to determine the mixing ratio of water glass water and 1st agent A, B, C, D so as to have a certain level of stability and to be the cheapest in terms of cost. become.
  • the curing degree of this is preferably 4 otJBLh100 and the following. Although its effect is not always clear, the reaction that proceeds during S production is promoted by heating the upper range to cure the mixture of treatment agent and waste. it is conceivable that. In addition, it is presumed that the RJS ⁇ fi product that is now in a more stable state becomes more stable and the elution of the contained « ⁇ JR is more effectively prevented.
  • This 3 ⁇ 4 ⁇ SL3 ⁇ 4 is the Pb content of the waste, the calcium compound content, the amount of waste from the waste when there is no toS, and the target elution allowance, for example, Depends on the regulations at the place where the waste is disposed.
  • the target elution allowance is strict, and the ability to stabilize harmful metals is improved by raising the raw filp to a higher temperature.
  • the composition exceeds 100%, the moisture in the mixture evaporates rapidly, and the moisture for solidification of waste and i ⁇ L3 ⁇ 43 ⁇ 4l is lost. Therefore, the harmful metal stabilization performance of the treatment may be significantly reduced.
  • arrangement ⁇ ! It becomes a ttll with a fake, and during transportation work, etc., the distribution containing harmful money ⁇ may fly and contaminate the surrounding environment. Is not preferred.
  • the fi fidelity of the distribution of waste and treatment agent is preferably less than 40 Jbl 100.
  • S ⁇ SS is 80 and the following is a more preferable range.
  • Such heating and utilization in the streets is also effective when there is not a sufficient place in the waste fttS site to dispose of the processed waste.
  • the arrangement of waste and transmutation ⁇ ! For more than 6 hours.
  • the solidification strength of the mixture of the material and the treating agent is not crucible with the ra during curing, so ra was not applied when curing was sufficient. 3 ⁇ 4 ⁇
  • the treated material may collapse at the landfill site, and scattered cliffs containing harmful metals may contaminate the surrounding area.
  • the temperature is less than 6 o'clock, the time required for the multimerization reaction to proceed during the period is insufficient, and the treatment agent may not exhibit the predetermined toxic metal stabilization performance, which is not preferable. .
  • Waste MS plant especially intermediate treatment plant for waste incineration veins, is attached to waste # 5 incineration facility
  • the heat generated during incineration of waste is recovered as heat by heat exchange »», and furthermore, it is generated using these steams.
  • the sulfur gas recovered by heat exchange in the incineration plant and the gas obtained by using the gas Doing so can make efficient use of energy and is industrially useful.
  • the amount of water glass added to the water cannot be generally specified because the Pb stabilizing performance of the treatment agent varies depending on the amount of additives A, B, C, and D.
  • the addition of the least amount of water glass water-soluble material to the target elution amount or less is a factor in determining the addition amount.
  • the solid content of water glass water is approximately 30 weight% or less of waste 100,000 pounds of waste, and the Pb method in Japan It is possible to control to below the regulated value of 0.3 ppm. If the solid content of water glass water is added in this range, the amount of addition is more than necessary, unless the solids are required to be reused, etc.
  • the Nada amount of water glass water is preferably in the range of less than 100 solids of water glass water 3 ⁇ 43 ⁇ 4 against 100 waste fi ⁇ .
  • the treatment agent of the present invention is mixed with deer 3 and brought into contact with the treatment, the ss substance and the force, and 3 ⁇ . Therefore, or water beforehand interpreted the treatment 3 ⁇ 4W, or, after the as agent and waste was s case or « « [, water was added, the rate by ⁇ to be 0 waste transliteration, Ban and MS agents
  • the sum of the water content and the added water is as follows: It is preferably at least 25 times the S part. However, if the amount of water is too large, the following problems are likely to occur.
  • the waste treatment agent of the present invention does not contain calcium hydroxide such as calcium hydroxide, calcium oxide, calcium chloride, etc., which can serve as a gelling agent for water glass water, or other waste. It is also possible to stabilize harmful metals, such as Pb, which do not contain polyvalent metal clay, and which are contained in dust generated in furnaces and zinc plating.
  • calcium hydroxide, calcium oxide, calcium compound, etc., or other polyvalent clay, which can serve as a gelling agent for water glass hydroxide can be added to waste in advance to obtain calcium hydroxide,
  • the same action as in the case of waste containing calcium oxide such as calcium oxide, calcium chloride, etc. makes it possible to exhibit the harmful metal stabilizing performance of the treating agent and the treating method of the present invention. It is.
  • Sodium silicate (I) used in Comparative Example 2 (hereinafter simply referred to as “sodium citrate ⁇ 3 ⁇ 4”) 6.5 g (solid content: 2.5 g) and calcium chloride aqueous solution j ⁇ 3 ⁇ 4 (0.86 g of CaCl 2 dissolved in 26.0 g of water) (the product of mo 1 part of calcium ion and valence of 75 mo 1 part per 10 Omo I of cation of water glass water ⁇ )
  • Clay acid was added to 50 g of the above fly ash (I), and added immediately to the fly ash (I). 6.5 g (solids 5 g), mixed and mixed (100 parts by weight of ash, solid content of aqueous glass solution 5 times S «5), and the same as in Comparative Example 2. The mixture was sieved and subjected to elution K3 ⁇ 4.
  • Table 2 shows the dissolution S test results of Comparative Examples 1, 2, 6, and 7 above. Table 2? 1) Amount of elution (m)
  • the dissolution test was performed in exactly the same manner as in Example 3 except that the following was used instead of calcium hanedide water as additive ⁇ .
  • Example 6 7- butyrolactone water (water 26. O g to C * H e Os to 1. 0 0 g obtained by dissolving).
  • Example 9 1.07 g of formic acid (6 1% ⁇ ,) (cation of water glass water)
  • Example 10 Phosphoric acid (5 Omo 1 part of phosphoric acid hydrogen ion with respect to 10 Omo 1 part of cation in 0.40 g of 85% He aqueous solution of glass).
  • Example 11 1 ft dry ice (CO,) 1.00 g as acid source.
  • Example 12 0.52 g of sulfuric acid (97% Hi SO *) (1 part of cation 10 Omo of water glass water3 ⁇ 43 ⁇ 45 parts of ififi water ion 5 Omo).
  • Example 13 0.62 g of lactic acid (CH, COOH)
  • Example 14 0.47 g of oxalic acid (98% (COOH) ») (1 part of cation of water solution of water glass, 1 part of hydrogen ion of oxalic acid 50 parts of momo).
  • the dissolution test was performed in exactly the same manner as in Example 3 except that the following was used as the additive A instead of the aqueous calcium chloride solution.
  • Example 16 Barium phosphate water (Water 26. O g with Bas (PO *) 8
  • Example 17 water ig »[(0.83 g of ZnSO * dissolved in 26.0 g of water)], (1 part of cation of 7K glass water, 1 part of molybdenum ion of zinc ion and 1 part of molybdenum ion) The number of * 5 Omo 1 part).
  • Example 18 magnesium water (water 26.0 This 1 ⁇ (1 2 0. 49 g which was dissolved), (against the cation 10 Omo 1 part water glass solution, mo 1 parts of the valence of magnesium ions
  • Example 19 Iron hydride ( ⁇ ) water ⁇ 3 ⁇ 4 (0.65 g of FeCl! Dissolved in 26.0 g of water), (water glass water 3 ⁇ 4 cation of Pft) 1 Omo 1 part, iron (II) ion mo 1 part and valence edge 5 Omo 1 Iku).
  • Example 21 Aqueous aluminum water (0.46 g of water dissolved in 26.0 & 0.16 g of water), (mo 1 part of aluminum ion and 1 part of cation of water ion of water glass water) The product of the numbers is 5 Omo 1 part)
  • Example 22 Aqueous solution of magnesium nitrate (0.76 g of Mg (NO ⁇ ⁇ ⁇ ⁇ ) 2 dissolved in 26.0 g of water) On the other hand, the product of mo 1 part of magnesium ion and valence is 5 Omo 1 part).
  • Example 23 Calcium nitrate aqueous solution (Ca (NO s ) a is added to 26.0 g of water at 0.
  • Example 26 Aluminum nitrate water (0.73 g of 8 1 (NO a ) a dissolved in 26.0 water), (water glass water 1 part of cation of 10%) The product of the part and the valence is 5 Omo ISP).
  • Example 28 Sulfuric acid (II) water (0.6 ⁇ 0.7 & ⁇ dissolved in water 26.08) (2 ⁇ solution), (1 part of cation of water glass water j ⁇ 3 ⁇ 4 is 10 parts of Omo, but mo part of iron (II) ion and 1 part of valence are 5 parts of Omo).
  • Example 29 Aluminum solution ( 12 (SC) s in 26.0 water)
  • Example 31 1 Alcohol: 0.03 g o potassium
  • Example 33 Lignin sulfone sodium 0.03 g.
  • Example 3 5 Lithium hydrate 0.50 g (solid content of water glass solution 100 MM.
  • Example 37 0.50 g of potassium hydroxide (solid content of aqueous solution of water glass: 100 g)
  • Example 38 0.5 g of 25% aqueous ammonia (20 MM for 100 solids in water glass solution).
  • Hydrochloric acid (2.10 g of 36% 1101 dissolved in 26.08 water) was added to 6.5 g of sodium silicate (1) (2.5 g of surface shape) as additive A.
  • an elution test was carried out in the same manner as in Example 1 by instantaneously adding the above SamK (I) to 50 £ and ffilfting the C0U 00SS part, and then adding water glass water ⁇ [solid content of 5 wt.
  • Example 42 Ethylene glycol diacetate aqueous solution (1.04 g of C 2 H ⁇ (OCOCH,): dissolved in 26.0 g of water).
  • Example 44 7-butyrolactone water (Water 26.02 ( ⁇ 11, ⁇ : 2
  • Example 46 glyoxal water (2.00 g of (CHO) 2 dissolved in 26.0 g of water).
  • Sodium silicate ⁇ 3 ⁇ 4 (1) 6.5 g (solid content: 2.5 g) was added to 50 g of the above pulse (I) and ift building was added. C5U 0 Solid content of water glass water for Offifi part 5 MS3 ⁇ 4 ;) Sometimes, as an additive A, Hanic acid (36% 11 (26.05 in water: 4.20 g for 1) The solution was added to the mixture, and the mixture was further kneaded, cured and crushed in the same manner as in Example 1 and crushed, sorted by a sieve, and subjected to a dissolution test.
  • Example 48 ethanol 26. O g in the C H S OH 1. 9 2 g Minatokai the thing).
  • Example 49 Calcium iodide water (Water 26.0 Niji 3 (: 2.08 g dissolved))
  • Example 5 1 ethylene carbonate solution (in water 26. 0 (CH 2 0) and 2 CO 4.
  • Example 5 2 7-Petit port Rataton water (C in water 26. 0 g, the H s 0 2 4.
  • Example 54 Glyoxer ⁇ »3 ⁇ 4 (that was obtained by dissolving 4.00 g of (CHO) in 726.0) o
  • Example 55 Exactly the same as in Example 55 except that the curing SJt was set to 60 and the 3 ⁇ 4 ⁇ time was set to 6 hours. Dilute and elute tt Agriculture
  • the dissolution test was performed in exactly the same manner as in Example 55 except that the time was changed to 60 and the time was set to 2 hours.
  • Example 1 was repeated except that 0.97 g of phenol (C, Hs OH) was added in place of decanoic acid (50 m 01 of phenol hydrogen ion per 10 Omo 1 cation of glass solution). Elution was performed using the same rubber.
  • Table 3 shows the dissolution test results of Examples 1 to 60 described above.
  • Table 4 shows the stability of the processing solution.
  • Table 3 Pb elution amount (pm)
  • Example 1 From the comparison between Example 1 and Comparative Example 3, the addition S of the acid in the treating agent of the present invention is that the hydrogen ion of the acid is 5 Omo 1 part or less for the cation 10 Omo 1 part in the water glass scythe. It is clear that force ⁇ preferred.
  • Example 1 From the comparison between Example 1, m9 to Example 14, ⁇ m5 ⁇ , and Comparative Example 2, the acid of additive ⁇ was selected from acid, ffi acid, phosphoric acid, sulfuric acid, ft acid, ft acid, and oxalic acid. It is evident that the use of provides 43 ⁇ 4a3 ⁇ 4i with better Pb stabilization performance than using other acids.
  • Example 3 From the comparison between Example 3 and Comparative Example, it was found that the amount of the polyvalent metal salt added as the additive A in the i! TS agent of the present invention was as follows. It is clear that the product of mo 1 part of JR ion and its valence is preferably 5 Omo I part or less.
  • the polyvalent gold salt of the waste treatment agent consisting mainly of water glass water and polyvalent JW1 as additive A is magnesium, Any of calcium, strontium, barium, iron, aluminum, or zinc chloride, t.m ⁇ .phosphate, or phosphate, and more preferably magnesium iodide, calcium chloride, or iron (II) chloride Use any one of, ⁇ ⁇ ( ⁇ ), aluminum, ⁇ »magnesium, calcium sulphate, cm, iron sulphate ( ⁇ )), aluminum nitrate, magnesium sulphate, magnesium sulphate, iron (II) sulphate and s-aluminum sulphate By doing so, it is evident that it has an excellent Pb stabilization ⁇ as compared with the case of using only the aqueous solution of water glass.
  • the processing agent stability is clearly improved.
  • the use of sodium hydroxide, potassium hydroxide, or aqueous ammonia as the additive E preferably results in a more uniform treatment of the SS as compared with other stabilizers. It is further improved, and it is clear that it has an excellent Pb-stabilized ttt as compared to the treatment with the addition of other stabilizers.
  • the addition amount of the agent E was not more than 20 MS parts with respect to 100 parts by weight of the solid content of water glass water. * & P stability of the treating agent was not reduced. It is clear that the consistency is improved.
  • the agent A As described above, by adding the agent A to the water glass water, the amount of Pb eluted can be reduced as compared with the case of the water glass aqueous solution alone. Further, the present inventors, regarding the above-mentioned treatments W and the law, by adding the number of added ⁇ , the time ra after mixing the waste and the treatment, the a * during the period, etc. 3 ⁇ 4tS means that the elution amount can be reduced to 0.3 ppm or less of the 3 ⁇ 4t standard value.
  • Table 5 shows the results of the municipal garbage ⁇ ⁇ ⁇ at one facility?
  • the fly ash (II) containing the calcium compound was subjected to the above-mentioned elution test without treatment.
  • Silica soda 3 ⁇ 43 ⁇ 4 (1) 9. lg (solid content: 3.5 g), water 26. Og ⁇ 0.73 g ⁇ ID (1 Omo 1 cation of water glass water, hydrogen ion of sulfuric acid 50 mo (1 part) water was added to obtain a treating agent. After converting the bulking agent for 2 minutes, the material was solidified for 2 minutes and then tried to apply to (11) above. As a result, the 40® agent was solidified and could not be added to f3 ⁇ 4K and subjected to Siffi.
  • a treatment agent was prepared in the same manner as in Comparative Example 12, except that the silica ST Noda solution (I) was 13 g (® content: 5.0 g).
  • the treatment agent solidified as soon as the sulfuric acid aqueous solution was added to the water glass aqueous solution, and could not be added to the fly ash (II) and mixed.
  • Transformation J After preparation, immediately add to 50 g of the fly ash ( ⁇ ) and mix it (5 SS part of water glass water ⁇ with 100 SS part of ash), solidify it with S ⁇ at 20 for 24 hours. , Crushed after solidification Was sieved with a sieve of 5 mm, and 30 g of the sieving passed through the sieve was collected and subjected to an elution test.
  • the dissolution test was performed in exactly the same manner as in Example 61 except that 9. l g (solid content: 3.5 g) of sodium silicate (1) and 0.73 g of sulfuric acid were used.
  • Table 16 shows the dissolution test results of the above Comparative Examples 8 to 11 and Examples 6 1 to 64.
  • the treatment of the present invention is effective for the case where the treatment agent does not solidify instantaneously after the addition of sulfuric acid and the entire treatment agent solidifies after several minutes. It is clear that
  • Comparative Example 1 From a comparison between K13 and Example 64, it is clear that the material treatment method of the present invention is effective for ⁇ one that is instantaneously solidified after the addition of 3 ⁇ 43 ⁇ 4. is there.
  • Table 7 shows the fiS ⁇ analysis results of ⁇ JR ⁇ CI I O (hereinafter referred to as "I I I") from a bag filter captured by municipal trash. Using this calcium compound-containing solution, an elution test was performed with no sulfuric acid.
  • Table 7 55 ⁇ analysis of veins ( ⁇ ⁇ ) generated by incineration of municipal waste ⁇ (weight 53 ⁇ 4)
  • the dissolution test was performed in exactly the same manner as in Comparative Example 2 except that sodium silicate S was changed to 9.1 g (solid content: 3.5 g, 7 S amount with respect to 100 parts by weight of ash). .
  • the dissolution test was performed in exactly the same manner as in Comparative Example 15 except that the time was changed to 7 days (168 hours).
  • Table 8 shows the results of the elution test for J ⁇ ⁇ ratios of Example 14 to Comparative Example 17.
  • Table 8 Pb elution i ( ⁇ m)
  • the dissolution test was carried out in exactly the same manner as in Example 65, except that the triphosphate phosphate as the additive B was changed to the following.
  • Example 66 0.15 g of trilithium phosphate (6 parts by weight based on 100 parts by weight of solid content of aqueous water glass solution)
  • Example 67 0.25 g of tribasic lithium phosphate (10 parts by weight based on 100 parts by weight of the solid content of the aqueous solution of water glass)
  • Example 68 10.0 g of tribasic lithium phosphate (400 parts by weight based on 100 parts by weight of the solid content of the aqueous solution of water glass)
  • Example 69 12.5 g of tripotassium phosphate (500 parts by weight based on 100 parts by weight of the solid content of the aqueous solution of water glass)
  • Example 70 pentasodium triphosphate (sodium tripolyphosphate) 1.0 g
  • Example 7 1 Hexasodium tetraphosphate (sodium tetrapolyphosphate) Og
  • Example 72 1.0 g of sodium hexametaphosphate (40 parts per 10 OSS parts of water glass water) ⁇ Jfe
  • Example 73 Potassium 1.0 g
  • Example 77 Sodium ethylenediaminetetrasodium 1. Og
  • Example 78 Sodium dimethyldithiocarbamate 1.0 g
  • Example 81 1.0 g of trisodium phosphate
  • Example 83 Sodium carbonate 1.0 g
  • Example 85 Sodium oxalate 1.0g
  • Example 33 ⁇ 46 88 Lithium potassium 3.5 g
  • the mixture was pulverized, classified with a sieve having an opening of 5 mm, and 30 g of the sieved product was sampled and subjected to a dissolution test. Further, the gelling of the above-mentioned treating agent was visually observed, and the qualitative characteristics were changed.
  • Example 100 Sodium hydroxide 0.03g
  • Example 103 at 60.
  • Example 104 Curing ⁇ at 90.
  • Example 105 Health Censorship at 4:00 RS.
  • Example 108 Time is changed to 48 o'clock.
  • Example 94 Exactly the same as Example 94, except that Additive E was replaced by 0,50 g of potassium benzoate (100 fl parts of potassium benzoate per 100 parts by weight of aqueous solution of water glass). The dissolution test was carried out in the same manner as described above, and the stability of the one-package was examined by visually observing the gelled ridge of the treatment.
  • Example 94 Exactly the same as Example 94, except that the additive ⁇ was replaced by 0.65 g of potassium benzoate (potassium benzoate 26 is® with respect to 100 parts by weight of the solid content of the aqueous solution of water glass).
  • the dissolution test was performed in the same manner as described above, and the gelation of was visually observed to determine the stability of the one-pack.
  • Example 65 to above The elution test results of I14 are shown in Table 9 and the stability of one solution is shown in Table 10.
  • the addition S of the liflB additive B indicates that the water glass solid content in the water glass water is 10%. It is clear from the Pb stabilizing performance that the amount of 10 to 400 SS is more preferable for the 0 £ S part.
  • the water glass in the treating agent of the present invention was found to be less than potassium silicate (K 20 ⁇ n S i 0,) and sodium silicate (Na t O 2). ⁇ It has been clarified that the aqueous solution of the treating agent water glass containing n S i) as a main component has a better Pb stabilizing performance and is a more preferable form as the treating agent.
  • Example 8 From 9 and 95 to 102, when aqueous water glass solution and additive B are used as main components, glucone, tartrate, benzoic acid hydrochloride, lignin sulfone ft salt, and ⁇ g are used as additive E. However, it was clarified that the addition of either one of a monovalent cation and a hydrated ion improves the stability of the treating agent without lowering the Pb stabilizing performance. In particular, from Examples 99 to 101, the use of sodium hydroxide, potassium hydroxide, or aqueous ammonia as the above-mentioned additive E makes it possible to further improve the one-component stability of the treating agent as compared with the others. It is clear that
  • Example 9 According to 107, 107 and 108, Additive E can be used as a stabilizing agent when the amount of addition is less than 2 ms relative to 100 parts by weight of solids in aqueous water glass solution. However, it was found that if it exceeds 20 parts by weight, it cannot work as a stabilizer. 8 U3 ⁇ 4Example 75, Example 103: From I10, it is clear that if PEL is set to 40 to 100 and JELt is performed at 6 o'clock, Pb stabilization performance will improve more and more. It is easy.
  • Table 11 shows the analysis results of Pb content and Ca content S of K (IV), (V), and (VI). In addition, the elution test was performed without treatment using these and the elution amount of Pb was measured. Table 11 shows the results. Table 1 1 Analysis of ⁇ K in urban garbage «S applied and thrown (weight)
  • the fine sodium silicate solution (I) stock solution and sodium carbonate aqueous solution j ⁇ 3 ⁇ 4 (solid content 30.8%) at 70 were combined at the mixing ratio shown in Table 10 to obtain a treatment.
  • the storage stability of the treating agent of Example 1 17 was evaluated at 6 to 70 days.
  • fMK was performed using two methods, i.e., titration method 1 and ⁇ method 2.
  • the evaluation method 1 after 150 g of the treating agent was immersed in each case, the precipitation of salt and the gel were visually observed, and the results were obtained.
  • the ffffi method 2 after leaving the treating agent for 1 day, add 0.3 g of sodium acid solid powder to 150 g of the treating agent, release at 6 o'clock, and after 15 hours, precipitate new salt. The gel and ⁇ ⁇ were visually observed and the results were recorded. »Table 13 shows the fruits. Even 1 3 storage stability
  • the treating agent composed of a mixed aqueous solution of water glass water and sodium carbonate was extremely low in preventing Pb elution in Sf material. You can see that there is. Furthermore, it can be seen that a compound having a fiftfc of 90: 10 to 40: 60 of the water glass solid content and the sodium carbonate solid content in the S mixed water exhibits excellent Pb elution prevention performance. . It is also evident from the above 3 ⁇ 4MS example that the optimum ratio differs depending on the type of waste, but typically, the SSJt of the water / water glass solid content and the sodium carbonate solid content is 60:40 to 50%. : 50 is the most suitable.
  • HJfe Example 1 2 1 showed that at least 25 required the use of more than SL, but from an industrial perspective, considering more certainty, the use of more than 30 but less than 70% of heat insulation was required. It turns out that it is necessary.
  • the sodium silicate solution and the sodium hydroxide solution at 40 were mixed at the mixing ratio shown in Table 14 into E and S to form iaSiPJ, and these were mixed with water 23 g was added to the solution, and this was added to 50 g of each of the reading bottles (IV).
  • a mixture (added 10 OS of ash and 10 parts by weight of the solid content of the agent) was added and mixed at 20 to 24 hours. After that, the mixture was pulverized, classified with a sieve having a mesh size of 5 mm, and 30 g of the sieve obtained was subjected to a dissolution test. result Are shown in Table 14.
  • Example 125 In the same manner as in Example 125 except that sodium hydroxide described in Example 125 above was replaced with sodium hydroxide, potassium hydroxide was added to 100% of water glass solids. The mixture was mixed at a rate of 67 fifi parts and subjected to a similar method, and evaluated by the same method. 1) Elution 3 was 6. O ppm.
  • the stock solution of the silicon ST Noda solution (I) and the potassium sickle at 40 were combined at the mixing ratio shown in Table 15 to obtain a treating agent.
  • a solution obtained by adding 20 g of water to these treating agents was added to 50 g of each of the fly ash (IV) beforehand to treat water contained in treating agent water i ⁇ 3 ⁇ 4.
  • the amount of solids and the amount of solids in the reamed solids (solid content) were added and kneaded at a ratio of 5.0 g vigorously (15 parts by weight of the solid content of Spj to Ash 10 O fifiSB).
  • the mixture was pulverized, sieved with a sieve having an eye of R3 and 5 mm, and 30 g of the sieved product was collected and subjected to elution. Table 15 shows the results.
  • the water glass of the present invention From 18.23, 24, and Examples 129-133, the water glass of the present invention It can be seen that the treating agent consisting of a mixture of water and acid lime as additive B is extremely effective in preventing the elution of Pb in waste. Furthermore, Pb elution prevention tttl which is particularly affected in a mixture in which the weight SJt of the water glass solid content in the mixed water and the potassium carbonate solid content is 90: 1 D to 40:60 is exhibited. I understand.
  • Table 17 shows the elution results of fc «Example 27.28.
  • the dissolution test was carried out in exactly the same manner as in Example 135, except that 0.48 g of ethanol was added instead of the acid.
  • Example 1 39 0.57 g of ethylene glycol diacetate.
  • Example 1 40 1.00 g of ethylene carbonate.
  • Example 141 1.00 g of carbtyrolactone.
  • Example 1 42 succinic acid dimethyl ester 1. 00 g 0
  • Example 143 1.00 g of glyoxal.
  • Example 144 ⁇ (61% ⁇ ,) a 1. 07 g 0
  • Example 1 45 phosphoric acid (855tfH, P0 4) 0. 40 g.
  • Example 1 46 Charcoal 3 ⁇ 45t, dry ice 1.00g.
  • Additive A was prepared by adding 0.62 g of acetic acid instead of acid to acid (hydrogen ion (IT) 5 Omo 1 part per 10 Omo 1 cation of water glass water j ⁇ ) Elution test ft was performed in exactly the same manner as in Example 135, except that
  • Example of J £ Lt 135 ⁇ ! Table 18 shows the elution results of Example 149.
  • the dissolution test was carried out in exactly the same manner as in Example 150, except that hydrochloric acid was used as additive A, and the following was used.
  • Example 151 1.07g of usic acid (61% HN0,)
  • Example 152 0.40 g of phosphoric acid (85% H, PO «)
  • Example 153 1.00 g of dry ice.
  • Example 154 0.52 g of sulfuric acid (97% H, SO *)
  • Example 156 0.47 g of oxalic acid (98% (COOH) t )
  • Example 158 Magnesium hydroxide water (Magnesium clay is added to 20.0 g of water)
  • Example 159 bft (II) aqueous solution (water 20.0 0.65 g of iron (II) chloride dissolved in g
  • Example 160 clay ifcjK (ni) water (0.50 g of iron (III) chloride in 20 and 0 g of water), (per 10 omo of cation of water glass water)
  • Example 162 Magnesium formate water (20.0 g of water and magnesium nitrate To
  • Example 163 Calcium nitrate water solution (20.0 g of water) Magnesium nitrate 0
  • Example 1 64 Sure water ⁇ [(20.Og of water 0.92 g of iron usate (U) dissolved
  • Example 165 Iron (III) nitrate water j ⁇ (0.83 g of iron nitrate (111) dissolved in 20.0 g of water), (iron (III) per 1 part of cation of water glass water j ⁇ 3 ⁇ 4 10 Omo) The contact between the ion and its valence is 5 Omo 1 part).
  • Example 166 Aluminum nitrate aqueous solution (aluminum nitrate added to 20.0 g of water)
  • Example 167 Magnesium sulfate aqueous solution (20.0 g of water is mixed with magnesium sulfate)
  • Example 168 Iron (II) water (0.78 g of iron (II) sulfate dissolved in 20.0 g of water), (water glass water ⁇ 3 ⁇ 4 cation 10 Omo 1 part to iron (II) The product of the ion and its valence is 5 Omo 1 part).
  • Example 169 Aluminum sulfate aqueous solution (aluminum sulfate added to 20.0 g of water)
  • the dissolution test was performed in exactly the same manner as in Example 170, except that 0.03 g of phosphorous barium was added instead of strontium carbonate to treatment WII.
  • Table 19 shows the dissolution test results of Examples 150 to 171 described above.
  • Table 1 9 13 Elution 3 ⁇ 4 (ppm)
  • the dissolution test was carried out in exactly the same manner as in Example 172 except that the following was used instead of babaic acid as additive A.
  • Example 1 73 Ethanol (0.96 g of ethanol was dissolved in 20 g of water)
  • Fe6fe Example 175 Ethylene glycol diacetate aqueous solution (20.0 g water 1.004 g of lenglycol diacetate dissolved).
  • Example 1 77 Petyrolactone aqueous solution (a solution of 2.00 g of abutyrolactone in 20.0 g of water).
  • Example 1 78 dimethyl succinate (2.00 g of water dissolved in 2.00 g of dimethyl succinate).
  • Example 1 79 Glioxazo 1 1 & 3 ⁇ 4 (20.0 g of glyoxal in 20.0 g of water)
  • Table 20 shows the dissolution test results of Examples 172 to 179 described above.
  • the dissolution test was performed in exactly the same manner as in Example 180, except that the following was used in place of hydrochloric acid as additive ⁇ .
  • Example 181 Ethanol (1.92 g of ethanol was dissolved in 20 g of water)
  • Example 1 82 Calcium chloride water (20.0 g of water is mixed with calcium chloride 2.
  • Example 183 Ethylene glycol diacetate water (2.08 g of water and 2.08 g of ethylene glycol diacetate dissolved).
  • tmi84 fttt ethylene water (4.00 g of ethylene carbonate dissolved in 20.0 g of water).
  • Example 185 7-butyl mouth ratatone water (7-butyrolact in 20.0 g of water)
  • Example 186 Dimethyl succinate ester ⁇ 7 ⁇ (4.00 g of dimethyl succinate dissolved in 20.0 g of water).
  • Example 1 87 Glyoxal aqueous solution (4 g of glyoxal in 20.0 g of water)
  • Table 21 shows the dissolution test results of Examples 1 80 to 187 described above.
  • a dissolution test was conducted in exactly the same manner as in Example 188 except that the lower epoch was used instead of sodium dalconate as the additive E, and the gelation of the treatment agent was visually observed. It was qualitative.
  • Example 1 (1 part by weight based on the solid content of water glass scythe 100 weight S)
  • Example 1 90: 0.03 g of ammonium benzoate
  • Example 191 0.03 g of sodium ligninsulfonate.
  • Example 192 0.03 g of starch.
  • Example 1 (1 Sfi part per 100 parts by weight of water glass water surface)
  • Example 1 93 0.50 g of lithium hydroxide.
  • Example 1 (20 parts by weight based on 100 parts by weight of solid content of water glass water)
  • Example 1 94 0.50 g of sodium hydroxide (solid content of water glass water ⁇ !
  • Example 1 95: 0.50 g of potassium hydroxide.
  • Example 1 96 25% ammonia water 0.50 go
  • Example 1 92 3.7
  • Example 193 3.4
  • Table 24 shows the elution results of Examples 197 and 198 described above.
  • Example 200 Curing ⁇ at 60.
  • Example 202 S raw SL degree is 60 and curing time is 2 hours.
  • Example 204 Curing temperature is 60 ° C and curing time is 48 hours.
  • Table 25 shows the fclS results of the elution tests of Examples 199 to 204 described above.
  • a dissolution test was performed in exactly the same manner as in Example 205 except that the following was used instead of pentasodium triphosphate as additive B.
  • Example 207 1.0 g of sodium hexametaphosphate.
  • Example 2 08 1.0 g o of potassium carbonate
  • Example 210 1.0 g of potassium salt.
  • Example 21 1.0 g of potassium ethylenediaminetetraacetate.
  • Example 2 1.0: 1.0 g of sodium ethylenediaminetetrafate.
  • ⁇ m213 1.0 g of sodium dimethyldithiocarbamate.
  • Example 2 15 1.0 g of trisodium phosphate.
  • Example 2 19 1.0 g of sodium oxalate.
  • Example 220 1.0 g of potassium amino trimethylene phosphonate.
  • Example 2 24 7.0 go of potassium oxalate
  • Example 2 sodium ethylenediamine tetrate at 3.5 o
  • Example 226 Sodium ethylenediaminetetraacetate 7.0 go
  • Table 26 shows the dissolution results of Examples 205 to 226 described above.
  • Example 228 Potassium phosphorous hydrogen 0.70 g o
  • Example 232 Phosphoric acid (85% H, PO.) 0.40 g (Power of aqueous solution of water glass 1 part of thione 10 Omo 1 part of water purple ion of phosphoric acid ( ⁇ ') 50mo 1 part and water glass water ⁇ ⁇ 3 ⁇ 4 solid content of 100, phosphoric acid 16 against 100: & capital)
  • Example 234 Oxalic acid (983 ⁇ 4 (COOH) t ) 0.47 g 0
  • the treatment agent of the present invention obtained by adding the additive A and the additive B to water glass water is a water glass aqueous solution. It is clear that it has excellent Pb stabilization performance as compared with only ⁇ .
  • the amount of the acid as the additive A in the agent of the present invention was determined based on the amount of acid hydrogen added to 1 part of the cation 10 O mo in the aqueous solution of water glass. It is apparent that a preferred form of the sorbent is that the content of the ion (I) is not more than 5 Omo 1 part.
  • the acid which is the additive ⁇ of the present invention off-shore is acid, nitric acid, phosphoric acid, sulfuric acid, sulfuric acid, carbonic acid and ft acid. It is clear that by using any one of oxalic acid and oxalic acid, a treating agent having excellent Pb stabilizing performance can be obtained.
  • the addition amount of polyvalent gold as the additive A in the treatment agent of the present invention is as follows. Multivalent JS clay and its valley with a ridge of 5 O mo or less are clearly a preferred form for the ⁇ L ⁇ agent.
  • the polyvalent metal clay which is the additive A in the treating agent of the present invention was magnesium, calcium, stotium, Barium, iron, aluminum, chloride, nitrate, calcium salt, carbonate, phosphoric acid, and more preferably magnesium chloride, chloride chloride, salt ⁇ ⁇ (11), salt ⁇ ⁇ (III), at least one of aluminum oxide, magnesium nitrate, calcium nitrate, iron nitrate (11), iron nitrate ( ⁇ ⁇ ), aluminum, magnesium sulfate, iron sulfate (n), and 3 ⁇ 4a3 ⁇ 4 aluminum
  • the additive B in the treatment agent of the present invention a substance that forms calcium ion ⁇ ⁇ insoluble or hardly soluble in water as calcium ions, or Ion sealant that sequesters calcium ions «I agent, Phosphorus potassium, Triphosphate» Sodium, Hexasodium tetraphosphate, Hexameta Sodium phosphate, Potassium acid, Ammonium, Potassium, 1-Hydroxyethane
  • the use of at least one of potassium 1,1-diphosphone B, 1-hydroxyethane-1,1,1-diphosphone 11-Li, potassium ethylenediamine tetra-fttt, sodium ethylenediamine tetra-ftate, and sodium dimethyldithiocarbamate provides water. It is possible to obtain treatment 3 with excellent Pb stabilization performance by performing ⁇ ⁇ and Jt3 ⁇ 4 of glass water only. Is how et al.
  • soda Na! 0 ⁇ nS i 0,
  • potassium silicate K 20 ⁇ n S i
  • Example 1 88 From the comparison of Example 1 88 and Comparative Example 26, when the amount of the stabilizing agent added is more than 2 O Sfi part to 10 O fifi part of the solid content of the water glass aqueous solution, Immediately gels and adds stabilizers to provide one-pack stability in comparison with other I & II agents Decreased significantly.
  • Examples 2 2 7 to 2 3 4 show that phosphorus ifa salt, ft acid water, hydrogen sulfate, hydrogen oxalate, phosphoric acid, sulfuric acid, sulfur tt, etc. are added in the treatment agent according to the present invention. It acts as an acid as agent A, and also acts as a substance that reacts with calcium ions as additive B and produces a water-insoluble or sparingly soluble calcified ⁇ , which is effective in stabilizing Pb. Is evident.
  • the dissolution test was carried out in exactly the same way as in Example 235, except that the following was used instead of the poly-agglomerated aluminum as additive C.
  • Example 236 Carbamate (Sumitomo Chemical: Dt ⁇ formula company, product name: Sumifloc
  • Example 239 Polyacrylic soda (manufactured by S Synthetic Chemical Industry Co., Ltd., product name: aron A—20P) 0.03 g (solid content of water glass water jg) 100 mfiSP against sodium polyacrylate 1.2 SS part).
  • 3 ⁇ 4te example 242 carboxymethylcellulose (aH) 1.0 o
  • Example 243 Sulfate band (SS) 1.0g o
  • An elution test was performed in exactly the same manner as in Example 234, except that 7.9 g (solid content: 2.5 g) was used.
  • the dissolution welding was carried out in exactly the same manner as in Example 234 except that 3 g (solid content: 2.5 g) was used.
  • Table 28 shows the dissolution test results of Comparative Example 29 and Examples 235 to 245 described above.
  • Examples 235 to 245 and i show that even with the addition of the aqueous solution of water glass alone, the amount of Pb eluted was fier than that of untreated 3 ⁇ 4 ⁇ , and the water glass sickle power and harmful metals (Pb) It can be seen that it has stabilizing performance, but it can be seen that adding additive C further improves the stabilizing performance. Also, from a comparison of H3 ⁇ 4 example 235 and 3 ⁇ 4Sfe example 244.245, sodium silicate (Nai 0 ⁇ nS i 0 B ) was compared with potassium silicate (Ki 0 ⁇ nS i 0 B ).
  • O2 has a better Pb-stabilized tti, and is a preferred form as step 3). Moreover, it is, it is clear that a more preferred form as punished »J sodium silicate of fefi! Ui (S i O t / Na 8 0) 2. 0 or more sodium silicate
  • Example 248 2.5 g of sodium chloride (water glass water ⁇ 1, 100 mo 1 part of cation), monovalent metal ion of sodium hydride 10 0 Omo 1 Part).
  • Example 249 Agglomerated sodium at 2.0 go
  • Example 250 Potassium chloride at 2.0 o
  • Example 251 2.0 g of sodium oxalate
  • Example 252 Chemical ammonia at 2.0 o
  • the addition amount of the monovalent metal salt as the additive D was improved in Pb stability performance as compared with water glass water at 3 mo 1 part for 1 part cation in water glass aqueous solution for 1 part cation in water glass aqueous solution.
  • 1 part of 15 Omo does not show a preferable form as the treatment S3 ⁇ 4iJ. Therefore, the monovalent cation in the aqueous solution of water glass is
  • the preferred form of the treating agent aqueous solution is that the monovalent gold-extended ion of the gold clay is less than 5 mo 1 part J3 ⁇ 4JL and 10 O mo 1 part.
  • the ammonia of the additive D a chemical ammonium is preferred.
  • the waste treatment agent and treatment method of the present invention By treating industrial waste containing harmful metals using the waste treatment agent and treatment method of the present invention, harmful metals, particularly Pb in waste incineration bottles, are stabilized, and elution ⁇ ⁇ ⁇ . I do.
  • the blend of waste and the treating agent obtained as a result of the waste according to the present invention can be reused for road materials and cement bone as a material having a very small amount of eluted, It can be a heavy resource.

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Abstract

Produit chimique de traitement de déchets qui comprend une solution aqueuse de verre soluble et dont l'effet destiné à empêcher le lessivage de métaux dangereux est amélioré, en particulier de plomb contenu dans le suies produites par les installations d'incinération de déchets. On parvient à l'amélioration susmentionnée en ajoutant au verre soluble un additif A (par ex., acide, alcool, sel de métal polyvalent, ester d'alcool polyvalent, carbonate, ester intramoléculaire, ester d'acide bivalent ou dialdéhyde), un additif B (par ex., phosphate, carbonate, sulfate, carboxylate ou hydroxyde de potassium, sodium ou ammonium; phosphonate de potassium ou sodium; ou agent chélateur organique doté d'un groupe carboxyle -COOX (où X représente hydrogène, potassium ou sodium) ou un groupe dithiocarbamate >NCSSY ( où Y représente hydrogène, potassium ou sodium), un additif C (coagulant et/ou un additif D (par ex., un sel métallique monovalent ou d'ammonium qui ne produit pas de composés insolubles dans l'eau ou difficilement solubles dans l'eau lors de la réaction avec des ions de calcium). Il est possible d'améliorer la stabilité du produit chimique en tant que solution unique et la maniabilité dudit produit en ajoutant encore un additif E (par ex., sel de gluconate, sel de tartrate, sel de benzoate, sel de ligninesulfonate, polysaccharide ou base composée de cations monovalents et d'ions hydroxyde).
PCT/JP1995/001966 1994-09-29 1995-09-28 Produit chemique de traitement de dechets et procede de mise au rebut desdits dechets WO1996009902A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP2001049235A (ja) * 1999-08-16 2001-02-20 Nippon Soda Co Ltd 重金属固定剤
JP2002273379A (ja) * 2001-03-22 2002-09-24 Touso Sangyo Kk 重金属固化剤および廃棄物処理方法
CN1091662C (zh) * 1996-05-20 2002-10-02 协和化学工业株式会社 废料处理方法
JP2002327432A (ja) * 2001-05-02 2002-11-15 Hasui Kensetsu Kk 湿式地盤改良工法
JP2006233018A (ja) * 2005-02-25 2006-09-07 Yukio Yanagimoto 重金属イオンを無害化できる無機電解凝結剤及びそれを用いた資源化処理方法
US7976625B2 (en) * 2006-01-20 2011-07-12 Cognis Ip Management Gmbh Compounds and methods for treating fly ash
CN112934919A (zh) * 2021-02-05 2021-06-11 云南大地丰源环保有限公司 一种废弃无水氯化铝的处理方法
CN114602931A (zh) * 2022-03-17 2022-06-10 深圳市航天新材科技有限公司 一种用于焚烧飞灰减容稳定化处置的方法

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GB9908632D0 (en) * 1999-04-15 1999-06-09 Upperforce Limited Treatment of polluted or contaminated substrates
US8052986B1 (en) * 2005-07-15 2011-11-08 Envirovest Llc System controlling soluble phosphorus
US10913670B2 (en) 2016-05-05 2021-02-09 Extrakt Process Solutions, Llc Oil sands tailings treatment
US11027993B2 (en) 2016-05-05 2021-06-08 Extrakt Process Solutions, Llc Oil sands tailings treatment
WO2019023054A1 (fr) * 2017-07-24 2019-01-31 Extrakt Process Solutions, Llc Traitement de compositions aqueuses de déchets de charbon
CN109316704A (zh) * 2018-12-04 2019-02-12 合肥全晟环保科技有限公司 用于处理垃圾焚烧飞灰中重金属的螯合剂及其制备方法
CN109364422A (zh) * 2018-12-04 2019-02-22 合肥全晟环保科技有限公司 一种高效的垃圾焚烧飞灰的处理方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5284174A (en) * 1975-12-31 1977-07-13 Kyokado Eng Co Method of nonnpolluting pollution generating substances
JPS52109482A (en) * 1976-03-11 1977-09-13 Oshita Naojirou Stabilization of ashes
JPS57204276A (en) * 1981-06-09 1982-12-14 Nippon Kaihatsu Consultant:Kk Utilization of fly ash
JPH0739847A (ja) * 1993-07-28 1995-02-10 Entetsuku:Kk 廃棄物安定化処理剤及び廃棄物安定化処理方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5284174A (en) * 1975-12-31 1977-07-13 Kyokado Eng Co Method of nonnpolluting pollution generating substances
JPS52109482A (en) * 1976-03-11 1977-09-13 Oshita Naojirou Stabilization of ashes
JPS57204276A (en) * 1981-06-09 1982-12-14 Nippon Kaihatsu Consultant:Kk Utilization of fly ash
JPH0739847A (ja) * 1993-07-28 1995-02-10 Entetsuku:Kk 廃棄物安定化処理剤及び廃棄物安定化処理方法

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1091662C (zh) * 1996-05-20 2002-10-02 协和化学工业株式会社 废料处理方法
JP2001049235A (ja) * 1999-08-16 2001-02-20 Nippon Soda Co Ltd 重金属固定剤
JP2002273379A (ja) * 2001-03-22 2002-09-24 Touso Sangyo Kk 重金属固化剤および廃棄物処理方法
JP4624583B2 (ja) * 2001-03-22 2011-02-02 東曹産業株式会社 重金属固化剤および廃棄物処理方法
JP2002327432A (ja) * 2001-05-02 2002-11-15 Hasui Kensetsu Kk 湿式地盤改良工法
JP2006233018A (ja) * 2005-02-25 2006-09-07 Yukio Yanagimoto 重金属イオンを無害化できる無機電解凝結剤及びそれを用いた資源化処理方法
US7976625B2 (en) * 2006-01-20 2011-07-12 Cognis Ip Management Gmbh Compounds and methods for treating fly ash
CN112934919A (zh) * 2021-02-05 2021-06-11 云南大地丰源环保有限公司 一种废弃无水氯化铝的处理方法
CN114602931A (zh) * 2022-03-17 2022-06-10 深圳市航天新材科技有限公司 一种用于焚烧飞灰减容稳定化处置的方法

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