CN104525090A - Absorbent used in sewage phosphorus removal, and preparation method thereof - Google Patents
Absorbent used in sewage phosphorus removal, and preparation method thereof Download PDFInfo
- Publication number
- CN104525090A CN104525090A CN201410714794.8A CN201410714794A CN104525090A CN 104525090 A CN104525090 A CN 104525090A CN 201410714794 A CN201410714794 A CN 201410714794A CN 104525090 A CN104525090 A CN 104525090A
- Authority
- CN
- China
- Prior art keywords
- lanthanum
- preparation
- silica flour
- absorbent
- phosphorus
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0296—Nitrates of compounds other than those provided for in B01J20/04
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0207—Compounds of Sc, Y or Lanthanides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
- B01J20/0274—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04 characterised by the type of anion
- B01J20/0288—Halides of compounds other than those provided for in B01J20/046
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/42—Materials comprising a mixture of inorganic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4806—Sorbents characterised by the starting material used for their preparation the starting material being of inorganic character
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses an absorbent used in sewage phosphorus removal. A carrier of the absorbent is industrial lithium-silicon powder waste slag with a size no lower than 150 meshes. Lanthanum ions are loaded on the carrier. With the absorbent, the removal rate upon phosphorus in phosphorus-containing sewage and wastewater or natural water body with a total phosphorus concentration of 1mg/L and a pH value of 3-8 is always higher than 86%. The invention also discloses a preparation method of the absorbent. According to the invention, the carrier raw material lithium-silicon powder adopted by the absorbent is selected from industrial waste slag, such that the source is wide, and cost is low. With a developed pore structure, the carrier can provide sufficient active absorption points. Only trace of rare earth lanthanum used for modification is needed to be added. The obtained absorbent has excellent phosphorus absorption effects in natural water bodies, sewage and wastewater. With the absorbent, an absorption capacity is high, absorbent stability in water body is high, no water body secondary pollution is caused, and cost is low. The absorbent has a good application prospect.
Description
Technical field
The invention belongs to the sorbent used and preparing technical field of sewage disposal, be specifically related to a kind of adsorbent for sewage dephosphorization and preparation method thereof.
Background technology
Along with the aggravation of industrial expansion and mankind's activity, the change of water body environment is very remarkable, and particularly outstanding is body eutrophication problem.Eutrophication is mainly because the nutriment in water is as excessive caused in nitrogen, phosphorus equal size.Wherein phosphorus is the restricted factor of the phytoplankton growth such as algae in natural water, is also the decisive factor causing body eutrophication.China's secondary lake on-site investigation data display: existing 138 areas are greater than 10km
2lake in, what reach serious rice-nutrient standard accounts for 40.1%, and what exceed eutrophication standard accounts for 85.4%.The Eutrophic Extent in lake is on the rise, and water quality declines gradually, and the consequence brought not only directly affects daily drinking water safety, more has immeasurable negative effect to development that is economic and society.
Absorption method is a kind of efficiently low energy consumption method for removing certain specific solute in low concentration solution, is specially adapted to the removal of various poisonous and harmful substance in waste water.The adsorption mechanism of absorption method utilizes adsorbent to realize removing to the affinity of certain specific solute in water body, therefore General Requirements adsorbent used has larger specific area or loose porous structure.The selection of high-efficiency adsorbent should meet usually: (1) adsorption rate is fast; (2) adsorption capacity is high; (3) high selectivity; (4) unharmful substance stripping; (5) adsorbent reactivation easily, stable performance; (6) material is cheap and easy to get.
In the agent of existing suction phosphorus, although natural material (as bentonite, diatomite, natural zeolite etc.), waste residue (as slag, flyash etc.) are widely used in waste water treatment process because of cheap being easy to get, but due to low to the adsorption capacity of phosphorus, the cycle of operation is short, makes effluent quality not reach use standard.In order to make up the defect that this kind of suction phosphorus agent exists, usually the mode of modification is adopted both at home and abroad, namely by soda acid modification and supported rare earth metal, and adjustment is inhaled the pore structure of phosphorus agent, surface functional group and raising and can be generated the component of precipitated product with phosphorus, increases suction phosphate capacity.Relevant linguistic term shows, rare earth is inhaled the agent of phosphorus agent more common suction phosphorus and had higher adsorption capacity and better adsorption effect.Carry out improvement as (Yunnan Environmental science, 2004,23 (3): 51-53) such as Niu Limin with lanthanum-carried oxide and obtained the agent of rare earth suction phosphorus, and the test of water body suction phosphorus has been carried out to it.Result of the test shows that the Adsorption to phosphorus of prepared adsorbent can reach 95%, but this suction phosphorus agent is only suitable for the removal of phosphorus in acid stain disease (pH=3 ~ 5), limited to the removal ability of (pH>6) phosphorus in natural water body and industrial wastewater pollution.(Kunming University of Science and Technology's journal (science and engineering version) such as Li Bin, 2005, 30 (4): 88-91) be that carrier loaded lanthanum-oxides has obtained a kind of rare earth and inhales phosphorus agent with molecular sieve, and for waste water advanced dephosphorization, although the adsorption capacity of its phosphorus can reach 19.24mg/g, prepared adsorbent is after repeatedly desorption roasting regeneration, absorption property still can keep 85% of original adsorption capacity, but because this suction phosphorus agent take molecular sieve as carrier, and the preparation cost of molecular sieve is higher, therefore the regeneration process need carried out repeatedly, to reduce use cost, and the operating procedure of this regeneration process is not only loaded down with trivial details, cycle is long, and to regenerative agent be consumed, produce energy consumption, be unfavorable for inhaling promoting the use of of phosphorus agent.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, first a kind of preparation method for sewage dephosphorization adsorbent is provided.
Another object of the present invention is to provide a kind of adsorbent for sewage dephosphorization prepared by said method.
For the industrial applications of waste water dephosphorization, not only require that the suction phosphorus agent adopted has high selectivity, large adsorption capacity, long periods of time in order, also must consider the Cost Problems that the factors such as the price of adsorbent, installation cost, operating cost are brought simultaneously.In order to realize object of the present invention, and can obtain a kind of for sewage dephosphorization and cost-efficiently adsorbent, the present inventor finds through further investigation, a kind of industrial residue produced in the production process of lithium salts---lithium silica flour, not only active SiO wherein
2+ Al
2o
3>65%, containing rare metal elemental lithium, and lithium silicon powder surface multiple cracking, there is obvious pore structure, that is its composition and surface morphology characteristics all possess the potential quality as adsorbing agent carrier, in addition it is again waste residue, the carrier material supported rare earth lanthanum of adsorbent can be it can be used as to carry out modification, a kind of novel rare-earth adsorbent material can be obtained for the efficient dephosphorization process in sewage on the one hand, the resource of industrial residue and innoxious can also be realized on the other hand, reduce adsorbent cost, economize energy.
Research and develop further through the present inventor, can the object of the invention be realized and the preparation method for sewage dephosphorization adsorbent provided, it is characterized in that the processing step of the method and condition as follows:
(1) by drying for standby after the mesh sieve of industrial lithium silica flour waste residue mistake >=150;
(2) first solubility lanthanum salt water is mixed with La
3+ion concentration is the solution of 0.04 ~ 0.16mol/L, and dried industrial lithium silica flour waste residue is added the La of preparation by then by weight/volume ratio=1:2 ~ 1:20
3+regulate pH=8 ~ 12 of mixed liquor by basic species in solion, after abundant stirring, leave standstill impregnation 7 ~ 12 hours in normal temperature;
(3) the lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collect pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Solubility lanthanum salt used in said method is any one in the halide of the nitrate of lanthanum, the sulfate of lanthanum or lanthanum, preferred lanthanum chloride or lanthanum nitrate.
Industrial lithium silica flour waste residue used in said method preferably crosses 150 ~ 300 mesh sieves, more preferably crosses 150 ~ 200 mesh sieves.
Industrial lithium silica flour waste residue and La in said method
3+preferred 1:5 ~ the 1:10 of weight/volume of solion.
Lanthanum concentration preferably 0.08 ~ 0.12mol/L in said method.
The pH of mixed liquor preferably 10 ~ 12 in said method.
Preferably 8 ~ 10 hours time of impregnation is left standstill in said method.
The NaOH of the preferred 1M of basic species used or KOH solution in said method.
A kind of adsorbent for sewage dephosphorization prepared by said method provided by the invention, the carrier of this adsorbent is >=150 object industrial lithium silica flour waste residues, on it, load has lanthanum ion, and it is the phosphorous stain disease of 3 ~ 8 or the equal > 86% of tp removal rate of natural water body to total phosphorus concentration 1mg/L, pH value.
Carrier preferably 150 ~ 200 object industrial lithium silica flour waste residues in above adsorbent.
When the industrial lithium silica flour waste residue in said method preferably crosses 150 ~ 200 mesh sieves, when its preparation condition is optimum condition, this adsorbent is that the phosphorous stain disease of 6 ~ 8 or the tp removal rate of natural water body can reach 93 ~ 99% to total phosphorus concentration 2 ~ 13.5mg/L, pH, after absorption, in water body, the concentration of phosphorus is down to below 0.2mg/L, effectively prevents body eutrophication.
The present invention compared with prior art, has following good effect:
1, the support material adopted due to adsorbent provided by the invention is lithium silica flour, lithium silica flour itself not only has flourishing pore structure, there is obvious pleated projection on surface, surface area is large, enough activated adoption point positions can be provided, and silica structure itself in lithium silica flour is electronegative, lanthanum ion easily and in modifier reacts generation hydrous zirconia gel, and the hydrous zirconia gel generated has good Selective adsorption to the phosphate radical in sewage, in sour environment, lanthanum-oxides positively charged, occur electrically to adsorb to generate lanthanum orthophosphate complex compound with phosphate radical, replace hydroxyl simultaneously, moreover, lanthanum orthophosphate complex compound solubility in water that reaction generates is little and have stability, thus effectively sewage dephosphorization can be realized, and dephosphorizing rate is higher.
2, the support material lithium silica flour adopted due to adsorbent provided by the invention is selected from industrial residue, and source is comparatively wide, cheap, although the Rare Earth Lanthanum (LaCl that modification is used
3) price is more expensive, but only need trace to add, little on total preparation cost impact, analyze known through preparing omnidistance process economics: the about 3000 yuan/t of production cost of this novel suction phosphorus agent finished industrial product, processing high phosphorus concentration is that the sewage cost of 50mg/l is about 1.5 yuan/m
3, thus compare existing Rare Earth Lanthanum modification on market and inhale phosphorus agent, there is the very strong market competitiveness and promotional value.
3, because no matter all very good in the suction phosphorus effect of natural water still in waste water adsorbent provided by the invention is, adsorption capacity is large, and in water body, stability is high, can not cause the secondary pollution of water body, thus has good application prospect.
4, because absorbent preparation technique provided by the invention is simple, technological parameter is easy to control, and is thus easy to promote.
Accompanying drawing explanation
Fig. 1 is the lithium silica flour adsorbent of Rare Earth Lanthanum modification and the phosphor-removing effect correlation curve figure of conventional lithium silica flour of the embodiment of the present invention 1 preparation;
Fig. 2 is the phosphor-removing effect curve map of the lithium silica flour adsorbent of Rare Earth Lanthanum modification prepared by the embodiment of the present invention 4;
Fig. 3 is the phosphor-removing effect curve map of the lithium silica flour adsorbent of Rare Earth Lanthanum modification prepared by the embodiment of the present invention 5.
Detailed description of the invention
Embodiment 1
150 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum chloride water is mixed with La
3+ion concentration is the solution of 0.12mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:5
3+in solion, and regulate the pH to 9 of mixed liquor with the sig water of the NaOH of 1M, after fully stirring, leave standstill impregnation 8 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 2
200 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum nitrate water is mixed with La
3+ion concentration is the solution of 0.10mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:2
3+in solion, and regulate the pH to 8 of mixed liquor with the sig water of the NaOH of 1M, after fully stirring, leave standstill impregnation 7 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 3
250 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum sulfate water is mixed with La
3+ion concentration is the solution of 0.04mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:20
3+in solion, and regulate the pH to 11 of mixed liquor with the sig water of the NaOH of 1M, after fully stirring, leave standstill impregnation 10 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 4
300 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum chloride water is mixed with La
3+ion concentration is the solution of 0.16mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:10
3+in solion, and regulate the pH to 10 of mixed liquor with the sig water of the NaOH of 1M, after fully stirring, leave standstill impregnation 12 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 5
230 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum nitrate water is mixed with La
3+ion concentration is the solution of 0.08mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:8
3+in solion, and regulate the pH to 12 of mixed liquor with the sig water of the KOH of 1M, after fully stirring, leave standstill impregnation 11 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 6
200 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum chloride water is mixed with La
3+ion concentration is the solution of 0.08mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:5
3+in solion, and regulate the pH to 11 of mixed liquor with the sig water of the KOH of 1M, after fully stirring, leave standstill impregnation 8 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Embodiment 7
180 mesh sieves are divided postindustrial lithium silica flour waste residue drying for standby; Then first lanthanum sulfate water is mixed with La
3+ion concentration is the solution of 0.06mol/L, more dried industrial lithium silica flour waste residue is added the La of preparation by by weight/volume ratio 1:15
3+in solion, and regulate the pH to 10 of mixed liquor with the sig water of the KOH of 1M, after fully stirring, leave standstill impregnation 9 hours in normal temperature; Lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collects pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
Application examples 1
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent investigating Rare Earth Lanthanum modification prepared by embodiment 1.
Under room temperature, the total phosphorus concentration getting laboratory preparation is the simulated wastewater 100mL of 1mg/L, first solution ph is regulated to be 7.5, then the dephosphorization agent of variable concentrations is added, after the speed oscillation of 120rpm reaction 8h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration, the suction phosphorus performance of common lithium silica flour and the modified lithium silica flour adsorbent of Rare Earth Lanthanum in contrast adsorption and dephosphorization process.Result as shown in drawings.Result shows, adopt common lithium silica flour adsorbent, dephosphorizing rate is generally lower, and significantly improves through the novel suction phosphorus agent dephosphorizing rate that lanthanum is modified, and when dosage is 0.3g/L, dephosphorizing rate reaches more than 94%.
Application examples 2
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent investigating Rare Earth Lanthanum modification prepared by embodiment 3.
Under room temperature, the total phosphorus concentration getting laboratory preparation is the simulated wastewater 100mL of 50mg/L, first solution ph is regulated to be 7.0, then the dephosphorization agent of 7g/L is added, after the speed oscillation of 120rpm reaction 6h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration, result shows, the phosphorus of about 96.11% is all by Adsorption; When inhaling phosphorus agent dosage and increasing to 9g/L, the dephosphorizing rate in waste water is up to 99.5%.
Application examples 3
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent investigating Rare Earth Lanthanum modification prepared by embodiment 4.
Under room temperature, get certain secondary sedimentation tank of sewage treatment work water outlet 100mL, pH=7.6, total phosphorus content is 2.45mg/L, adds the dephosphorization agent of 3.5g/L, after the speed oscillation of 120rpm reaction 8h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration, result as shown in drawings.Result shows: after absorption 8h, in solution, phosphorus concentration is down to 0.17mg/L by 2.45mg/L, and dephosphorizing rate is more than 93%.
Application examples 4
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent investigating Rare Earth Lanthanum modification prepared by embodiment 5.
Under room temperature, get certain park landscape water (natural water body) 100mL, pH=7.7, total phosphorus content is 13.45mg/L, add the dephosphorization agent of 10g/L, after the speed oscillation of 120rpm reaction 8h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration, result as shown in drawings.Result shows: after absorption 8h, in solution, phosphorus concentration is down to 0.18mg/L by 13.45mg/L, and dephosphorizing rate is close to 99%.
Application examples 5
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent in wide pH scope investigating Rare Earth Lanthanum modification prepared by embodiment 6.
Under room temperature, the total phosphorus concentration getting laboratory preparation is the simulated wastewater 100mL of 1mg/L, first regulates solution ph to be 3 ~ 11, then the dephosphorization agent of 0.7g/L is added, after the speed oscillation of 120rpm reaction 6h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration.Result shows, in the scope of pH value 3-8, the dephosphorizing rate of this adsorbent all can remain on more than 86%.That is, the water pH value scope that this novel suction phosphorus agent is suitable for is comparatively wide, and be especially the natural water body of 6-8 for pH value range, this novel suction phosphorus agent can be good at playing phosphor-removing effect.
Application examples 6
Should use-case be the phosphor-removing effect of lithium silica flour adsorbent in wide pH scope investigating Rare Earth Lanthanum modification prepared by embodiment 7.
Under room temperature, the total phosphorus concentration getting laboratory preparation is the simulated wastewater 100mL of 50mg/L, first regulates solution ph to be 3 ~ 11, then the dephosphorization agent of 7g/L is added, after the speed oscillation of 120rpm reaction 6h, get supernatant liquid filtering, utilize molybdenum-antimony anti-spectrophotometric method to measure total phosphorus concentration.Result shows, in the scope of pH value 3-7, the dephosphorizing rate of this adsorbent is 89.9 ~ 94.4%.That is, the water pH value scope that this novel suction phosphorus agent is suitable for is comparatively wide, is particularly useful for faintly acid water body and neutral water body.
Claims (10)
1. for a preparation method for sewage dephosphorization adsorbent, it is characterized in that the processing step of the method and condition as follows:
(1) by drying for standby after the mesh sieve of industrial lithium silica flour waste residue mistake >=150;
(2) first solubility lanthanum salt water is mixed with La
3+ion concentration is the solution of 0.04 ~ 0.16mol/L, and dried industrial lithium silica flour waste residue is added the La of preparation by then by weight/volume ratio=1:2 ~ 1:20
3+regulate pH=8 ~ 12 of mixed liquor by basic species in solion, after abundant stirring, leave standstill impregnation 7 ~ 12 hours in normal temperature;
(3) the lithium silica flour-lanthanum mixture after impregnation is carried out Separation of Solid and Liquid, collect pressed powder, and gained pressed powder is washed to neutrality repeatedly, then dry.
2. the preparation method for sewage dephosphorization adsorbent according to claim 1, is characterized in that solubility lanthanum salt used in the method is any one in the halide of the nitrate of lanthanum, the sulfate of lanthanum or lanthanum.
3. the preparation method for sewage dephosphorization adsorbent according to claim 1, is characterized in that solubility lanthanum salt used in the method is lanthanum chloride or lanthanum nitrate.
4. the preparation method for sewage dephosphorization adsorbent according to claim 1 or 2 or 3, is characterized in that industrial lithium silica flour waste residue used in the method was the particle of 150 ~ 300 mesh sieves.
5. the preparation method for sewage dephosphorization adsorbent according to claim 1 or 2 or 3, is characterized in that industrial lithium silica flour waste residue and La in the method
3+the weight/volume of solion is 1:5 ~ 1:10.
6. the preparation method for sewage dephosphorization adsorbent according to claim 4, is characterized in that industrial lithium silica flour waste residue and La in the method
3+the weight/volume of solion is 1:5 ~ 1:10.
7. the preparation method for sewage dephosphorization adsorbent according to claim 1 or 2 or 3, is characterized in that in the method, lanthanum concentration is 0.08 ~ 0.12mol/L; The pH of mixed liquor is 10 ~ 12; Leave standstill preferably 8 ~ 10 hours time of impregnation.
8. the preparation method for sewage dephosphorization adsorbent according to claim 6, is characterized in that in the method, lanthanum concentration is 0.08 ~ 0.12mol/L; The pH of mixed liquor is 10 ~ 12; Leave standstill preferably 8 ~ 10 hours time of impregnation.
9. the adsorbent for sewage dephosphorization prepared by method described in claim 1, it is characterized in that the carrier of this adsorbent is >=150 object industrial lithium silica flour waste residues, on it, load has lanthanum ion, and it is the phosphorous stain disease of 3 ~ 8 or the equal > 86% of tp removal rate of natural water body to total phosphorus concentration 1mg/L, pH value.
10. according to claim 9 for sewage dephosphorization adsorbent, it is characterized in that this adsorbent is that the phosphorous stain disease of 6 ~ 8 or the tp removal rate of natural water body can reach 93 ~ 99% to total phosphorus concentration 2 ~ 13.5mg/L, pH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714794.8A CN104525090A (en) | 2014-12-01 | 2014-12-01 | Absorbent used in sewage phosphorus removal, and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714794.8A CN104525090A (en) | 2014-12-01 | 2014-12-01 | Absorbent used in sewage phosphorus removal, and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104525090A true CN104525090A (en) | 2015-04-22 |
Family
ID=52840823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410714794.8A Pending CN104525090A (en) | 2014-12-01 | 2014-12-01 | Absorbent used in sewage phosphorus removal, and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104525090A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707569A (en) * | 2015-03-09 | 2015-06-17 | 云南大学 | MOFs materials for adsorbing phosphate anions |
| CN105251470A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Adsorbing agent for removing phosphorus and heavy metal ions and preparation method thereof |
| CN105948156A (en) * | 2016-05-17 | 2016-09-21 | 王金明 | Method for adsorbing and removing organic phosphorus in waste water |
| CN106824072A (en) * | 2017-02-07 | 2017-06-13 | 四川大学 | Magnetic adsorbent and preparation method and application |
| CN107159154A (en) * | 2017-08-02 | 2017-09-15 | 武汉轻工大学 | A kind of dephosphorization adsorbent using luffa as host material and preparation method thereof |
| CN108355607A (en) * | 2018-02-09 | 2018-08-03 | 长江水利委员会长江科学院 | It is a kind of to utilize the functional material for selecting copper tailings to prepare and its preparation process |
| CN108499514A (en) * | 2018-04-10 | 2018-09-07 | 中国科学院南京地理与湖泊研究所 | A kind of phosphorus adsorbent and preparation method thereof based on water supply plant iron aluminium mud |
| CN109529775A (en) * | 2019-01-18 | 2019-03-29 | 闽南师范大学 | A kind of synthetic method and absorption property of graphene oxide-lanthanum hydroxide composite material |
| CN109847691A (en) * | 2019-03-22 | 2019-06-07 | 中国人民大学 | A kind of lanthanum iron modified zeolite dephosphorization adsorbent and the preparation method and application thereof |
| CN110548490A (en) * | 2018-05-31 | 2019-12-10 | 华中科技大学 | Preparation method and application of recyclable lanthanum modified bentonite phosphorus removal material |
| CN110813264A (en) * | 2019-12-02 | 2020-02-21 | 华中科技大学 | Lanthanum modified material of hydrated calcium silicate gel and preparation method thereof |
| CN111346614A (en) * | 2019-03-21 | 2020-06-30 | 中国肉类食品综合研究中心 | Dephosphorization adsorption microsphere, adsorption column and application in water treatment |
| CN111530410A (en) * | 2020-04-28 | 2020-08-14 | 北京工业大学 | Method for preparing phosphorus removal adsorbent based on natural zeolite synthesized molecular sieve waste |
| CN115814755A (en) * | 2022-12-20 | 2023-03-21 | 江苏容汇通用锂业股份有限公司 | Adsorbent for waste residue of phosphorus-lithium aluminum, preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803274A (en) * | 2005-12-06 | 2006-07-19 | 昆明理工大学 | Preparation method of adsorption agent for sewage denitrification and dephosphorization |
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
| JP2009297707A (en) * | 2008-05-12 | 2009-12-24 | Asahi Kasei Chemicals Corp | High adsorbent porous shaped article and its production method |
| CN102247804A (en) * | 2011-05-20 | 2011-11-23 | 上海大学 | Preparation method of active carbon fiber phosphorous removing agent carrying lanthanum hydroxide |
-
2014
- 2014-12-01 CN CN201410714794.8A patent/CN104525090A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803274A (en) * | 2005-12-06 | 2006-07-19 | 昆明理工大学 | Preparation method of adsorption agent for sewage denitrification and dephosphorization |
| CN1817439A (en) * | 2006-01-17 | 2006-08-16 | 昆明理工大学 | Rare earth adsorbent and production thereof |
| JP2009297707A (en) * | 2008-05-12 | 2009-12-24 | Asahi Kasei Chemicals Corp | High adsorbent porous shaped article and its production method |
| CN102247804A (en) * | 2011-05-20 | 2011-11-23 | 上海大学 | Preparation method of active carbon fiber phosphorous removing agent carrying lanthanum hydroxide |
Non-Patent Citations (2)
| Title |
|---|
| 丁文明 等: "水合氧化镧吸附除磷的实验研究", 《环境科学》 * |
| 林伟兰: "锂硅粉吸附除磷及稀土改性性能研究", 《西华大学硕士学位论文》 * |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707569A (en) * | 2015-03-09 | 2015-06-17 | 云南大学 | MOFs materials for adsorbing phosphate anions |
| CN105251470A (en) * | 2015-10-27 | 2016-01-20 | 四川大学 | Adsorbing agent for removing phosphorus and heavy metal ions and preparation method thereof |
| CN105948156A (en) * | 2016-05-17 | 2016-09-21 | 王金明 | Method for adsorbing and removing organic phosphorus in waste water |
| CN105948156B (en) * | 2016-05-17 | 2018-09-07 | 王金明 | A kind of method of organophosphor in adsorbing and removing waste water |
| CN106824072A (en) * | 2017-02-07 | 2017-06-13 | 四川大学 | Magnetic adsorbent and preparation method and application |
| CN107159154A (en) * | 2017-08-02 | 2017-09-15 | 武汉轻工大学 | A kind of dephosphorization adsorbent using luffa as host material and preparation method thereof |
| CN108355607A (en) * | 2018-02-09 | 2018-08-03 | 长江水利委员会长江科学院 | It is a kind of to utilize the functional material for selecting copper tailings to prepare and its preparation process |
| CN108355607B (en) * | 2018-02-09 | 2020-10-27 | 长江水利委员会长江科学院 | Functional material prepared by using copper-selecting tailings and preparation process thereof |
| CN108499514A (en) * | 2018-04-10 | 2018-09-07 | 中国科学院南京地理与湖泊研究所 | A kind of phosphorus adsorbent and preparation method thereof based on water supply plant iron aluminium mud |
| CN110548490A (en) * | 2018-05-31 | 2019-12-10 | 华中科技大学 | Preparation method and application of recyclable lanthanum modified bentonite phosphorus removal material |
| CN110548490B (en) * | 2018-05-31 | 2020-10-30 | 华中科技大学 | Preparation method and application of recyclable lanthanum modified bentonite phosphorus removal material |
| CN109529775A (en) * | 2019-01-18 | 2019-03-29 | 闽南师范大学 | A kind of synthetic method and absorption property of graphene oxide-lanthanum hydroxide composite material |
| CN109529775B (en) * | 2019-01-18 | 2022-03-22 | 闽南师范大学 | Synthesis method and adsorption performance of graphene oxide-lanthanum hydroxide composite material |
| CN111346614A (en) * | 2019-03-21 | 2020-06-30 | 中国肉类食品综合研究中心 | Dephosphorization adsorption microsphere, adsorption column and application in water treatment |
| CN111346614B (en) * | 2019-03-21 | 2023-03-10 | 中国肉类食品综合研究中心 | Dephosphorization adsorption microsphere, adsorption column and application in water treatment |
| CN109847691A (en) * | 2019-03-22 | 2019-06-07 | 中国人民大学 | A kind of lanthanum iron modified zeolite dephosphorization adsorbent and the preparation method and application thereof |
| CN110813264A (en) * | 2019-12-02 | 2020-02-21 | 华中科技大学 | Lanthanum modified material of hydrated calcium silicate gel and preparation method thereof |
| CN111530410A (en) * | 2020-04-28 | 2020-08-14 | 北京工业大学 | Method for preparing phosphorus removal adsorbent based on natural zeolite synthesized molecular sieve waste |
| CN115814755A (en) * | 2022-12-20 | 2023-03-21 | 江苏容汇通用锂业股份有限公司 | Adsorbent for waste residue of phosphorus-lithium aluminum, preparation method and application thereof |
| CN115814755B (en) * | 2022-12-20 | 2023-07-11 | 江苏容汇通用锂业股份有限公司 | Phosphorus lithium aluminum Dan Feizha adsorbent and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104525090A (en) | Absorbent used in sewage phosphorus removal, and preparation method thereof | |
| CN107638868B (en) | A kind of porous carbon adsorbent and its preparation method and application | |
| CN102247804A (en) | Preparation method of active carbon fiber phosphorous removing agent carrying lanthanum hydroxide | |
| CN109608655A (en) | A kind of bifunctional group MOFs material and the preparation method and application thereof | |
| CN102515830A (en) | Reproducible phosphorus-uptake ceramsite and preparation method thereof | |
| CN105233806A (en) | Preparation method of adsorbent for purifying hydrogen sulfide, hydrogen phosphide and arsenic hydride simultaneously | |
| CN102553533A (en) | Method for preparing composite dephosphorus adsorbent by virtue of activated carbon fiber loaded with metal | |
| CN106076252A (en) | A kind of method utilizing waterworks sludge preparation denitrogenation dephosphorizing adsorbent simultaneously | |
| CN105617981A (en) | Sepiolite modification method and application of modified sepiolite to wastewater treatment | |
| CN104986822B (en) | A kind of chemical modification carries the preparation of iron peanut shell dephosphorization material and renovation process | |
| CN107867688A (en) | A kind of preparation method for the shaddock peel activated carbon for being used for purification of air and sewage disposal | |
| CN111905690A (en) | Method for preparing water body nitrogen and phosphorus removal oxygenation composite material by utilizing coal ash | |
| CN112337427B (en) | La @ Zr @ SiO2Preparation method of @ bentonite composite phosphorus removal adsorbent | |
| CN113842883B (en) | Lanthanum-loaded iron carbon nanotube film material for environmental remediation and preparation method and application thereof | |
| CN103406105A (en) | Modified waste tea leaves absorbent and preparation method and application thereof | |
| CN104971687A (en) | Efficient compound iron-based phosphorous-removing adsorbent as well as preparation method, application method and regeneration method thereof | |
| CN104148008B (en) | High-efficiency adsorbent of a kind of heavy metal ion and preparation method thereof and application | |
| CN103203219A (en) | Phosphorus removal adsorbent for loading composite metal via active carbon fiber and preparation method of phosphorus removal adsorbent | |
| CN111672460A (en) | Composite modification method of zeolite and application of zeolite in removing nitrate in water | |
| CN107754756A (en) | A kind of dephosphorization preparation method for bentonite | |
| CN102600796B (en) | Denitrification filter material for absorbing ammonia and nitrogen and regenerating method thereof | |
| CN103949207A (en) | Coal ash synthetic zeolite based nitrogen and phosphorus removing material as well as preparation and regeneration method thereof | |
| CN107029674A (en) | A kind of rare earth modified medical stone and peanut shell composite adsorbing material and preparation method thereof | |
| CN108421526B (en) | Method for preparing fly ash defluorinating agent by hydrothermal/acid leaching in two steps and application | |
| CN109759024A (en) | A kind of preparation method of the light sorbent based on plant cellulose |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |