CN104973674A - Heavy metal wastewater treatment agent - Google Patents
Heavy metal wastewater treatment agent Download PDFInfo
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- CN104973674A CN104973674A CN201510453302.9A CN201510453302A CN104973674A CN 104973674 A CN104973674 A CN 104973674A CN 201510453302 A CN201510453302 A CN 201510453302A CN 104973674 A CN104973674 A CN 104973674A
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Abstract
The invention discloses a heavy metal wastewater treatment agent which contains the following components in parts by weight: 8 parts of beta-cyclodextrin, 9 parts of polyacrylamide, 3 parts of carrageenan, 8 parts of natrium humate and 70 parts of sepiolite. The heavy metal wastewater treatment agent disclosed by the invention is high in reaction speed, high in stability of reagent treatment process and strong in environmental tolerance, and under a suitable condition, the removal rate of Pb<2+> of the heavy metal wastewater treatment agent can reach 99% or more.
Description
Technical field
The present invention relates to waste water, sewage disposal field of purification, more specifically point out, the present invention relates to a kind of heavy metal containing wastewater treatment agent for the treatment of heavy metal-containing waste water.
Background technology
The demand of the mankind to water resources is expanded with surprising rapidity, and simultaneously day by day serious water pollution is just being nibbled in a large number can for the water resources of consumption.The global mankind are in concern for the environment protection and environmental improvement problem, and the pollution of heavy metal is also one of environmental problem of considering of people, because the health of daily life with self of the mankind has been arrived in this serious threat.The whole world about has 200 tons of rubbish to pour river, lake and streams into every day, all rivers flowing through Asian Cities are all contaminated, the processed food wastes in water resources basin of the U.S. 40%, metal, fertilizer and pesticide pollution are according to survey data in recent years, China has the river of more than 1/3 to be polluted, the key cities waterhead area of nearly 50% does not meet drinking water standard, and the urban waters of more than 90% is seriously polluted.
In recent years, the rate of economic development of China is in continuous quickening, economical greatly develop come with environmental problem very severe, the Chinese land resources publication issued in 2012 from the Ministry of Land and Resources of China finds, China has the groundwater quality of 60% nearly for poor, in the Water-quality Monitoring Points that the whole nation is all, have the water quality of 17% to be non-constant, the serious provinces and cities of heavy metal contamination just reach 14 more than.All the time, underground water discharged by defective enterprise sewage, agriculture chemical use the reason such as to be not good at and to pollute.The April in 2 years one by one, " heavy metal contamination integrated control " 12 " planning " formally puts into effect, the control of heavy metal contamination is divided in order to two grades, the heavy metal ion of primary rank has lead, mercury, cadmium, chromium and this five large class of metalloid arsenic, secondly the heavy metal ion of serious harm is respectively nickel, zinc, tin, copper, molybdenum etc., and list the enterprise sort needing key-point management: the mining firm of non-ferrous metal aspect, the smelting enterprise that heavy metal is relevant, battery industry, the manufacturing concern that leather and chemical reagent are correlated with, all be included into by the object of concern, need the pollution hazard controlling heavy metal ion.
Trade effluent, be the primary pollution source causing environmental pollution, wherein the pollution of heavy metal ion-containing waste water is particularly serious.Heavy metal is the important pollutent with potential hazard, produces harm greatly to HUMAN HEALTH and ecotope.Development heavy metal containing wastewater treatment technology, is not only conducive to environment protection, and can promotes the progress of industrial development and human society.Heavy metal wastewater thereby is mainly derived from mining, ore dressing, smelting, plating, chemical industry, process hides and paper industry, after the waste water of the heavy metals such as leaded, mercury, cadmium, chromium, nickel, copper, zinc that these industries produce enters natural water body, not only hydrobiont is constituted a threat to, and can the constantly enrichment by precipitation, absorption and food chain, destroy ecotope, and finally jeopardize the health of the mankind.When heavy metal is adsorbed by organism, except single ion exists, also protein, amino acid, lipid acid, carboxylic acid and phosphoric acid in organism may be combined, form organic acid salt, inorganic acid salt and inner complex.The toxicity of heavy metal ion and compound thereof is all generally played a role by the combination with living organism composition, stronger with the stronger then toxicity of organism keying action.Occur minamata disease and itai-itai disease from the 1950's in Japan, and to investigate this be that after the nuisance disease caused by mercury pollution and cadmium pollution, the problem of environmental pollution of heavy metal receives much attention.At present, the pollution of the most interestingly lead, mercury, cadmium, arsenic and chromium etc.
Summary of the invention
The invention discloses a kind of heavy metal containing wastewater treatment agent.Beta-cyclodextrin, polyacrylamide, carrageenin, natrium humate and sepiolite have mainly been selected in heavy metal containing wastewater treatment agent, obtain solid-state heavy metal containing wastewater treatment agent by certain making step and reaction process.The ability of the anti-extreme condition of heavy metal containing wastewater treatment agent of the present invention strengthens, and optimal temperature, pH value and inlet COD concentration scope broaden.Under optimum conditions, the Pb of heavy metal containing wastewater treatment agent
2+clearance can reach more than 99%.
A kind of heavy metal containing wastewater treatment agent, concrete preparation comprises the following steps:
(1) preparation of beta-cyclodextrin solution
Get 35 parts of distilled water with graduated cylinder, add 8 parts of beta-cyclodextrins, put it in whizzer, under 1000 ~ 3000r/min centrifugal 5 minutes, spend distilled water flushing after centrifugal end again and add to 50 parts of beta-cyclodextrin solution.
(2) chelatropic reaction
Take 9 parts of polyacrylamides and 3 parts of carrageenins by a certain percentage, add 20ml distilled water wherein and add to 90 degrees Celsius of chelatropic reactions, cool to room temperature in water-bath.Add 50 parts of beta-cyclodextrin solution ultrasonic oscillation mixing.
The preparation of (3) half solid fraction blanks
Take 8 parts of natrium humates and 70 parts of sepiolites, ground 80 mesh sieves, are added in above-mentioned mixing solutions, obtain half solid fraction blank.
(4) pelletizing sintering
Carry out pelletizing, about diameter 6 ~ 10mm, Balling time is 12min, and maturing temperature is 300 DEG C, and roasting time is 30min, obtains spherical heavy metal containing wastewater treatment agent.
Compared with prior art, the invention has the beneficial effects as follows: (1) heavy metal containing wastewater treatment agent speed of response is fast, and the stability of agent treated process is high; (2) heavy metal containing wastewater treatment agent good effect of separating solid from liquid, treating processes is convenient to control; (3) heavy metal containing wastewater treatment agent is to environment resistance strong (as pH, temperature, organic solvent, toxic substance); (4) heavy metal containing wastewater treatment agent is by reducing the weak acid soluble state of Heavy Metals in Waters and the massfraction of reducible state and ratio, the oxidable state of raising heavy metal and the massfraction of residual form and ratio etc.; (5) promote that heavy metal is transformed to low bioavailable state by high bioavailable state, thus reduce validity and the migratory movement of Heavy Metals in Waters; (6) effectively inhibit enrichment and the transhipment of crop heavy metal, alleviate the murder by poisoning of heavy metal.
Accompanying drawing explanation
Fig. 1 is the impact of heavy metal containing wastewater treatment agent consumption.
Embodiment
Below in conjunction with concrete embodiment, in further detail the present invention is described.Embodiment below should be understood and be only not used in the restriction scope of the invention for illustration of the present invention.
embodiment 1
For the preparation of heavy metal containing wastewater treatment agent XMFS01.
(1) preparation of beta-cyclodextrin solution
Get 35 parts of distilled water with graduated cylinder, add 8 parts of beta-cyclodextrins, put it in whizzer, under 2000r/min centrifugal 5 minutes, spend distilled water flushing after centrifugal end again and add to 50 parts of beta-cyclodextrin solution.
(2) chelatropic reaction
Take 9 parts of polyacrylamides and 3 parts of carrageenins by a certain percentage, add 20ml distilled water wherein and add to 90 degrees Celsius of chelatropic reactions, cool to room temperature in water-bath, add 50 parts of beta-cyclodextrin solution ultrasonic oscillation mixing.
The preparation of (3) half solid fraction blanks
Take 8 parts of natrium humates and 70 parts of sepiolites, ground 80 mesh sieves, are added in above-mentioned mixing solutions, obtain half solid fraction blank.
(4) pelletizing sintering
Carry out pelletizing, about diameter 6 ~ 10mm, Balling time is 12min, and maturing temperature is 300 DEG C, and roasting time is 30min, obtains spherical heavy metal containing wastewater treatment agent.
Obtain for heavy metal containing wastewater treatment agent XMFS01.
embodiment 2
Pb in the consumption of heavy metal containing wastewater treatment agent and solution
2+the relation of clearance.
At normal temperatures and pressures, get containing Pb
2+concentration is the solution 40ml of 500mg/L, and add the heavy metal containing wastewater treatment agent of different amount, oscillatory reaction 2h on the oscillator, the consumption investigating water conditioner removes Pb to water conditioner
2+amount and solution in Pb
2+the impact of clearance.Pb in the consumption of water conditioner and solution
2+the relation of clearance is shown in accompanying drawing 1, and as can be seen from Figure 1, the consumption of water conditioner is larger, Pb in solution
2+clearance is also larger, and Pb removed by the water conditioner of unit weight
2+amount less, when the consumption of water conditioner reaches 2.4, Pb in solution
2+clearance reaches 99.91%.
Claims (3)
1. a heavy metal containing wastewater treatment agent, it is characterized in that: the preparation of (1) beta-cyclodextrin solution, 35 parts of distilled water are got with graduated cylinder, heavy interpolation 8 parts of beta-cyclodextrins, put it in whizzer, under 1000 ~ 3000r/min centrifugal 5 minutes, spend distilled water flushing after centrifugal end again and add to 50 parts of beta-cyclodextrin solution; (2) chelatropic reaction, takes 9 parts of polyacrylamides and 3 parts of carrageenins by a certain percentage, adds 20ml distilled water wherein and adds to 90 degrees Celsius of chelatropic reactions, cool to room temperature in water-bath, adds 50 parts of beta-cyclodextrin solution ultrasonic oscillation mixing; The preparation of (3) half solid fraction blanks, take 8 parts of natrium humates and 70 parts of sepiolites, ground 80 mesh sieves, are added in above-mentioned mixing solutions, obtain half solid fraction blank; (4) pelletizing sintering, carry out pelletizing, about diameter 6 ~ 10mm, Balling time is 12min, and maturing temperature is 300 DEG C, and roasting time is 30min, obtains spherical heavy metal containing wastewater treatment agent.
2. a kind of heavy metal containing wastewater treatment agent according to claim 1, it is characterized in that: the carrageenin of use is λ type carrageenin, or one or more composite mixed type carrageenins of λ type carrageenin and Kappa, Iota, Mu, Nu, Theta, Xi type carrageenin.
3. a kind of heavy metal containing wastewater treatment agent according to claim 1, is characterized in that: centrifuge speed is 2000r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510453302.9A CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510453302.9A CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
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| Publication Number | Publication Date |
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| CN104973674A true CN104973674A (en) | 2015-10-14 |
| CN104973674B CN104973674B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510453302.9A Expired - Fee Related CN104973674B (en) | 2015-07-29 | 2015-07-29 | Heavy metal wastewater treatment agent |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548484A (en) * | 2019-07-29 | 2019-12-10 | 郭建华 | Efficient adsorption material for heavy metals Cr, Cu, Cd and Pb ions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020422A (en) * | 1996-11-15 | 2000-02-01 | Betzdearborn Inc. | Aqueous dispersion polymers |
| CN1527738A (en) * | 2001-02-06 | 2004-09-08 | 沃特维森斯国际公司 | Compositions of insoluble magnesium containing minerals for use in fluid filtration |
| US20110006013A1 (en) * | 2005-02-15 | 2011-01-13 | Halosource, Inc. | Method for the removal of submicron particulates from chlorinated water by sequentially adding a cationic polymer followed by adding an anionic polymer |
| CN104129831A (en) * | 2014-07-29 | 2014-11-05 | 南京大学 | Method for simultaneous removal and recovery of heavy metal ions and organic acid by using chelating resin |
-
2015
- 2015-07-29 CN CN201510453302.9A patent/CN104973674B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6020422A (en) * | 1996-11-15 | 2000-02-01 | Betzdearborn Inc. | Aqueous dispersion polymers |
| CN1527738A (en) * | 2001-02-06 | 2004-09-08 | 沃特维森斯国际公司 | Compositions of insoluble magnesium containing minerals for use in fluid filtration |
| US20110006013A1 (en) * | 2005-02-15 | 2011-01-13 | Halosource, Inc. | Method for the removal of submicron particulates from chlorinated water by sequentially adding a cationic polymer followed by adding an anionic polymer |
| CN104129831A (en) * | 2014-07-29 | 2014-11-05 | 南京大学 | Method for simultaneous removal and recovery of heavy metal ions and organic acid by using chelating resin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110548484A (en) * | 2019-07-29 | 2019-12-10 | 郭建华 | Efficient adsorption material for heavy metals Cr, Cu, Cd and Pb ions |
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| CN104973674B (en) | 2017-01-18 |
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Effective date of registration: 20161025 Address after: 362700 Fujian city of Quanzhou province Shishi Han Jiang Zhen CuO Zi Jian Ming Industrial Zone No. 35 Applicant after: Shishi Xinming Food Science and Technology Development Co.,Ltd. Address before: 362700 Fujian city of Quanzhou province Shishi Haojiang Lijing Building 1 E 1001 ladder Applicant before: Gao Xiuting |
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