CN103880133A - Strongly acidic high-phosphorus nickel-containing wastewater composite phosphorus and nickel removal coagulant and phosphorus and nickel removal method thereof - Google Patents
Strongly acidic high-phosphorus nickel-containing wastewater composite phosphorus and nickel removal coagulant and phosphorus and nickel removal method thereof Download PDFInfo
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- CN103880133A CN103880133A CN201310442415.XA CN201310442415A CN103880133A CN 103880133 A CN103880133 A CN 103880133A CN 201310442415 A CN201310442415 A CN 201310442415A CN 103880133 A CN103880133 A CN 103880133A
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Abstract
The invention discloses a strongly acidic high-phosphorus nickel-containing wastewater composite phosphorus and nickel removal coagulant and a phosphorus and nickel removal method thereof. The composite coagulant is generated by carrying out a polymerization reaction among ferrous sulfate, aluminum anode-containing oxidized wastewater (25mg/L, Al2O3), NaClO3, xanthate, FP1 and hypermanganate according to a ratio, wherein the mass ratio is 1:(0.1-0.75):(0.1-0.40):(0.001-0.55):(0.01-0.25):(0.001-0.25):0.001-0.025). The treated wastewater is simple in operation and convenient to use, secondary pollution to the environment is avoided, the phosphorus and nickel removal effect is good, the phosphorus and nickel removal time is shortened, and the use cost is low. The composite coagulant is applied to high-phosphorus high-nickel industrial wastewater and phosphorus-containing domestic sewage and is also applied to turbidity removal of other wastewater and water from a water supply source, and the application range is wide.
Description
Technical field
The invention belongs to Industrial Wastewater Treatment and sanitary sewage disposal field, relate in particular to a kind of coagulating agent, is that a kind of strongly-acid high phosphorus nickel-containing waste water composite dephosphorization removes nickel coagulating agent and dephosphorization removes nickel method specifically.
Background technology
Water is most important resource on the earth, is also the widest compound of the abundantest distribution of nature content, and its total amount is about 1.4*10 altogether
19m
3, still, the overwhelming majority is bitter salty seawater, and reality can only account for 0.3% of total Water for the fresh water developing, and therefore, fresh water is extremely limited precious resources.Along with the continuous quickening of mankind's industrialization paces process, the people's standard of living progressively improves, and the consumption of fresh water grows with each passing day.The water resources of China accounts for 1/4 left and right of world's per capita share, add China nearly three fast development about ten years, process water and demand of domestic water are increasing, the waste water producing, sewage is more and more, make Water, phosphorus and heavy metal content exceed standard or severe overweight, cause body eutrophication, there is milk river in part river course, ink river, the phenomenon in Huo Dushui river, orange juice river happens occasionally, drinking water source has been formed to serious harm, along the river the cancer village that the common people that live occur is of common occurrence, control water pollution and eutrophication, the quality of increasing water quality is the significant problem that water treatment field faces.At present, sewage work's sewage dephosphorization technical point is biological phosphate-eliminating and chemical dephosphorization, particularly strongly-acid high phosphorus is nickeliferous, the heavy metal wastewater therebies such as copper, utilize biotechnology cannot solve at all, flocculence is one of important process method in chemical dephosphorization removing heavy metals technology, utilize composite dephosphorization to remove ambrose alloy coagulating agent, to process strongly-acid high phosphorus containing optimal methods of heavy metal wastewater thereby such as ambrose alloys, this coagulating agent combines the low and xanthogenic acid of the fast molysite toxicity of aluminium salt settling speed and absorbs the characteristic of heavy metal, major fields of the present invention through advantages such as this coagulating agent water quality after treatment are good.Really realize composite dephosphorization, removing heavy metals, turbidity removal, processed trade effluent sanitary sewage and the high turbidity performance such as source water from the beginning in one except COD, SS, ammonia nitrogen etc.
Summary of the invention
The defect that the trade effluents such as, copper nickeliferous for strongly-acid high phosphorus exist in conventional process technology, technical problem to be solved by this invention has been to provide one and has been applicable to the heavy metal industrial effluent composite dephosphorizations such as strongly-acid high phosphorus is nickeliferous, copper except nickel coagulating agent and dephosphorization thereof are except nickel method, described this composite dephosphorization except nickel coagulating agent and dephosphorization thereof except nickel method be a kind of simple to operate, easy to use, dephosphorization, except nickel, turbidity removal, except COD, SS, effective, the coagulation time is short, the coagulating agent that comprehensive cost is low.
The invention belongs to one and be applicable to the nickeliferous trade effluent composite dephosphorization of strongly-acid high phosphorus except nickel coagulating agent, by ferrous sulfate, containing alumilite process waste water (25mg/L, Al
2o
3), NaClO
3, sulphur ortho acid, FP1, permanganate generate by quality proportioning polyreaction, its quality proportioning is 1:0.1～0.75:0.1～0.40:0.001～0.55:0.01～0.25:0.001～0.25:0.001～0.025.
Further, described ferrous sulfate, containing alumilite process waste water (25mg/L, Al
2o
3), NaClO
3, sulphur ortho acid, FP1, permanganate generate by quality proportioning polyreaction, its quality proportioning is 1:0.1～0.55:0.01～0.35:0.001～0.45:0.01～0.15:0.001～0.15:0.01～0.015.
The present invention also provides a kind of and has utilized the dephosphorization that above-mentioned strongly-acid high phosphorus nickel-containing waste water composite dephosphorization removes nickel coagulating agent to remove nickel method, composite dephosphorization to be removed to nickel coagulating agent join in strongly-acid high phosphorus nickel-containing waste water, the weight ratio that the described high phosphorous nickel-containing waste water of strongly-acid and described dephosphorization remove nickel coagulating agent is 1:0.0005～1:0.03, under normal temperature condition, stir, leave standstill 60 minutes, can make the dephosphorizing rate of strongly-acid high phosphorus nickel-containing waste water reach 54.75%～99.99%, except nickel rate reaches 55.12%～98.22%, turbidity removal rate reaches 65.85%～99.52%.
Further, described strongly-acid high phosphorus nickel-containing waste water and described dephosphorization, except the weight ratio of nickel coagulating agent is 1:0.0005～1:0.03, stir under normal temperature condition, leave standstill 45 minutes, can meet the requirement of strongly-acid high phosphorus nickel-containing waste water processing.
Further, described strongly-acid high phosphorus nickel-containing waste water is electroplating wastewater, photoelectricity waste water, electronics waste water, aluminum products processing waste water, pickling iron and steel phosphorized waste water, Wastewater in Biologic Pharmacy, Chinese patent medicine preparation waste water, non-ferrous metals processing waste water, machinofacture waste water, sanitary sewage, phosphorous coating waste-water, any in source water from the beginning.
The principle of composite polymeric of the present invention: be mainly to utilize containing aluminium containing sulfate radicals waste water (25mg/L, Al
2o
3), ferrous sulfate adds FP1, NaClO
3, xanthogenic acid, potassium permanganate polyreaction under condition of normal pressure, temperature rise to 60 ℃, through about 1.5 hours polyreactions, product obtains Vandyke brown thickness transparent liquid, continue to add potassium permanganate, continue to stir, temperature continues to rise to 70 ℃ of left and right, slaking 2～3 hours, obtains the dephosphorization of composite strong acid high phosphorus nickel-containing waste water except nickel coagulating agent.
The present invention removes phosphonium ion and the principle except nickel: make in process, after the hydrolysis of composite dephosphorization discoloring agent, produce a large amount of CuNi (Fe
4p (H
2o
6))
+ 2, CuNi (Fe
2p (H
20)
6)
+ 3, CuNi (FeP (OH)
2)
+ 4deng polynuclear complex, with strongly-acid high phosphorus nickel-containing waste water in acidity to electronegative property under neutral meta-alkalescence condition, by absorption, build bridge, the effect such as crosslinked, make the colloidal particle in water agglomerated together.Meanwhile also there is a series of physicochemical change, and make them there is very strong electric power neutralising capacity, thus reduce the current potential of micelle, destroy the stability of micelle, impel the quick coagulative precipitation of micelle, reach dephosphorization, except nickel, turbidity removal, except the effect of COD, SS.
The present invention compares with prior art, and its technique effect is significant.The basicity that has improved this product reaches more than 20%, and the present invention uses easy to operate simple, operational condition gentleness, and dephosphorization is except nickel safety.Dephosphorizing rate improves more than 20%, also the nickel clearance in waste water is reached more than 90% simultaneously, turbidity removal, is improved significantly except COD effect, and coagulation time shorten more than 10%, is applicable to polytechnic sewage disposal and uses, and processing efficiency is high, and comprehensive cost is low.This dephosphorization removes nickel coagulating agent and dephosphorization removes nickel except nickel method has both been applicable to the dephosphorization of strongly-acid high phosphorus nickel-containing waste water, simultaneously, also being applicable to low-phosphorous, high turbid sanitary sewage dephosphorization purifies, also be applicable to high chroma phosphorus-containing wastewater, high turbidity original tap water and process early stage, be equally applicable to the organophosphorus waste water dephosphorization of herbal pharmaceutical and other need dephosphorization, except nickel, turbidity removal, COD etc.The stable performance of this coagulating agent, reducing substances is low, and the present invention can make the dephosphorizing rate of different sample waste water reach 54.75%～99.99%, and except nickel rate reaches 55.12%～98.22%, turbidity removal rate reaches 65.85%～99.52%.
The present invention can be widely used in all types of industries waste water, sanitary sewage, water source purifying water process from the beginning.
Embodiment
Below introduce embodiments of the invention.All raw materials are all counted in mass ratio in these embodiments.
Embodiment 1:
A kind of strongly-acid high phosphorus nickel-containing waste water composite dephosphorization is except nickel coagulating agent, and this composite dephosphorization is except nickel coagulating agent is by ferrous sulfate, containing alumilite process waste water (25mg/L, Al
2o
3), NaClO
3, sulphur ortho acid, FP1, permanganate generate by quality proportioning polyreaction, its quality proportioning is
1:0.1～0.75:0.1～0.40:0.001～0.55:0.01～0.25:0.001～0.25:0.001～0.025。
The dephosphorization that utilizes above-mentioned composite dephosphorization to remove nickel coagulating agent removes nickel method, be by strongly-acid high phosphorus nickel-containing waste water and described composite dephosphorization except nickel coagulating agent in proportion (nickel-containing waste water/dephosphorization of strongly-acid high phosphorus is except nickel coagulating agent) be: 1:0.03, stir at normal temperatures 3 minutes, leave standstill 60 minutes, both can make the dephosphorizing rate of high phosphorus-containing wastewater reach 99.80%.
Table one: test waste water is the former water of Shanghai aluminum products factory strongly-acid high phosphorus nickel-containing waste water
Note: when test, adding calcium hydroxide is adjusted pH value to 8.5.
Embodiment 2:
Identical, different with component and the operational condition of embodiment 1: the component proportion that this composite dephosphorization removes nickel coagulating agent is 1:0.1～0.55:0.01～0.35:0.001～0.45:0.01～0.15:0.001～0.15:0.01～0.015.With strongly-acid high phosphorus nickel-containing waste water and described composite dephosphorization turbidity removal coagulating agent in proportion (strongly-acid high phosphorus nickel-containing waste water/composite dephosphorization is except nickel agent) be: 1:0.012, stir at normal temperatures, leave standstill 90 minutes, both can make the dephosphorizing rate of high phosphorus-containing wastewater reach 99.99%.
Table two: test wastewater sampling is the former water of Shanghai Electroplate Factory strongly-acid high phosphorus nickel-containing waste water
Note: when test, adding calcium hydroxide is adjusted pH value to 8.
Embodiment 3:
Identical with component and the operational condition of embodiment 1, different: this sewage is Kingsoft Sewage Plant water inlet, phosphorus-containing wastewater (total P content 10.91mg/L, COD content 42.90mg/L, turbidity (NTU) 35.40mg/L) with described composite dephosphorization discoloring agent by weight proportion (waste water/dephosphorization turbidity removal coagulating agent) be: 1:0.0002～1:0.0010, stir at normal temperatures, leave standstill 90 minutes, in the situation that total phosphorus is identical, according to the difference of adding of agent concentration, the data that draw see the following form, both can make total tp removal rate of phosphorus-containing wastewater reach 52.34%～98.72%, turbidity removal rate reaches 50.85%～61.02%, COD clearance reaches 15.85%～30.77%.
Table three: test wastewater sampling is Kingsoft sludge of sewage treatment plant dehydration machine room backwater
Illustrate: chemical feeding quantity is that dephosphorization removes nickel coagulant dosage dosage, 60 minutes test datas.
As can be seen from the above table, the in the situation that of identical wastewater quality, along with the increase of chemical feeding quantity, better to the removal effect of total phosphorus, the clearance of phosphorus is from 46.08%～77.86%; Removing 1mg/L total phosphorus approximately needs dephosphorization to remove nickel agent 7.6mg-22mg, illustrates phosphorus to go rate better.SS clearance is along with the increase of chemical feeding quantity, and clearance reduces on the contrary, illustrates to be used in that to remove in the water of turbidity consumption very little, and COD clearance, along with pharmaceutical quantities reaches 800mg/L when above, has obvious removal effect.
Claims (5)
1. be applicable to strongly-acid high phosphorus nickel-containing waste water composite dephosphorization except a nickel coagulating agent, it is characterized in that, by ferrous sulfate, containing alumilite process waste water, NaClO
3, sulphur ortho acid, FP1, permanganate generate by quality proportioning polyreaction, its quality proportioning is 1:0.1～0.75:0.1～0.40:0.001～0.55:0.01～0.25:0.001～0.25:0.001～0.025.
2. a kind of strongly-acid high phosphorus nickel-containing waste water composite dephosphorization as claimed in claim 1 except nickel coagulating agent, is characterized in that, described ferrous sulfate, containing alumilite process waste water, NaClO
3, sulphur ortho acid, FP1, permanganate quality proportioning be 1:0.1～0.55:0.01～0.35:0.001～0.45:0.01～0.15:0.001～0.15:0.01～0.015.
3. one kind is utilized strongly-acid high phosphorus nickel-containing waste water composite dephosphorization described in claim 1 except the dephosphorization of nickel coagulating agent is except nickel method, it is characterized in that: be strongly-acid high phosphorus nickel-containing waste water composite dephosphorization to be removed to nickel coagulating agent join in the nickeliferous trade effluent of strongly-acid high phosphorus, the weight ratio that described strongly-acid high phosphorus nickel-containing waste water and described dephosphorization remove nickel coagulating agent is: 1:0.0003～1:0.03, add alkali and adjust its pH value 8-9, under normal temperature condition, stir, leave standstill 10-90 minute, can make the dephosphorizing rate of strongly-acid high phosphorus nickel-containing waste water reach 54.75%～99.99%, except nickel rate reaches 55.12%～98.22%, turbidity removal rate reaches 65.85%～99.52%.
4. a kind of strongly-acid high phosphorus nickel-containing waste water as claimed in claim 3 dephosphorization is except the dephosphorization of nickel coagulating agent is except nickel method, it is characterized in that, the weight ratio that the described nickeliferous trade effluent of strongly-acid high phosphorus and described composite dephosphorization remove nickel coagulating agent is 1:0.0003～1:0.03, under normal temperature condition, stir, leave standstill 60 minutes.
5. a kind of strongly-acid high phosphorus nickel-containing waste water composite dephosphorization as claimed in claim 3 is except the dephosphorization of nickel coagulating agent is except nickel method, it is characterized in that, the nickeliferous trade effluent of described strongly-acid high phosphorus is electroplating wastewater, photoelectricity waste water, electronics waste water, aluminum products waste water, metal processing waste water, pickling iron and steel phosphorized waste water, non-ferrous metals processing waste water, machinofacture waste water, pharmacy waste water, sanitary sewage, any in source water from the beginning.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442415.XA CN103880133A (en) | 2013-09-25 | 2013-09-25 | Strongly acidic high-phosphorus nickel-containing wastewater composite phosphorus and nickel removal coagulant and phosphorus and nickel removal method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310442415.XA CN103880133A (en) | 2013-09-25 | 2013-09-25 | Strongly acidic high-phosphorus nickel-containing wastewater composite phosphorus and nickel removal coagulant and phosphorus and nickel removal method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517474A (en) * | 2016-10-12 | 2017-03-22 | 上海丰远环保科技有限公司 | Composite chemical nickel remover and application thereof |
| CN112522760A (en) * | 2020-12-18 | 2021-03-19 | 东莞市新东明科技有限公司 | Method for removing nickel from anodic aluminum oxide alloy |
-
2013
- 2013-09-25 CN CN201310442415.XA patent/CN103880133A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517474A (en) * | 2016-10-12 | 2017-03-22 | 上海丰远环保科技有限公司 | Composite chemical nickel remover and application thereof |
| CN112522760A (en) * | 2020-12-18 | 2021-03-19 | 东莞市新东明科技有限公司 | Method for removing nickel from anodic aluminum oxide alloy |
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Application publication date: 20140625 |