CN107902796A - Pig-farm wastewater advanced treatment process - Google Patents
Pig-farm wastewater advanced treatment process Download PDFInfo
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- CN107902796A CN107902796A CN201711145436.XA CN201711145436A CN107902796A CN 107902796 A CN107902796 A CN 107902796A CN 201711145436 A CN201711145436 A CN 201711145436A CN 107902796 A CN107902796 A CN 107902796A
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- pig
- farm wastewater
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- 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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- 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
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/62—Heavy metal compounds
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- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- 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
-
- 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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- 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
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
A kind of pig-farm wastewater advanced treatment process, concrete scheme are as follows：Step 1, will be carried out the pig-farm wastewater after biochemical treatment using the prior art and carry out single treatment to it using aluminum chloride flocculant；Step 2, the waste liquid for obtaining step 1 add copper ion complexing agent and carry out complex-precipitation, and specific equation is as follows：Step 3, by step 2 waste liquid by chelating resin chelating realize Absorptive complex wave, realize deep purifying.Pig-farm wastewater its nitrogen content after handling three times is less than 20.0 milligrams/L, and phosphorus content is less than 5.0 milligrams/L, meets relevant emission standards, can directly discharge, avoid the pollution to environment.
Description
Technical field
This patent is related to sewage purification field, espespecially a kind of pig-farm wastewater advanced treatment process.
Background technology
China is the first in the world pig raising big country, and the influence of the development of industry of raising pigs to environment is very big.It is fast with aquaculture
Speed development, the high concentration organic contaminant and nitrogen and phosphorus pollution object amount of animal farm wastewater discharge continue to increase, and what is be induced by it is huge
Pollution problem is increasingly taken seriously.At present, processing of each pig raising enterprise to pig-farm wastewater at present, is substantially using biochemical process
Preliminary processing is carried out, such as：Xue Yu applies《A kind of method using pig farm Pig dung and urine production biogas》(application number：
201611231308.2) and the application such as Shen Qirong《A kind of method of the aquatic production organic fertilizer of recycling pig manure》(application number：
201710076378.3) it is still total containing higher concentration in the waste water after biochemical treatment, but since pig-farm wastewater component is more complicated
Nitrogen and total phosphorus, can not directly discharge at all, it is therefore desirable to further advanced treating, to ensure the waste water of pig raising enterprise effluent
Middle total nitrogen, total phosphorus are greatly lowered to reach discharge standard.
The content of the invention
The goal of the invention of this patent is to provide a kind of advanced treatment process of pig-farm wastewater, to meet discharge standard,
Reduce pollution.
A kind of pig-farm wastewater advanced treatment process, concrete scheme are as follows：
Step 1, will be carried out the pig-farm wastewater after biochemical treatment using the prior art it carried out using aluminum chloride flocculant
Single treatment；
Step 2, the waste liquid for obtaining step 1 add copper ion complexing agent and carry out complex-precipitation, and specific equation is as follows：
Step 3, by step 2 waste liquid Absorptive complex wave is realized by chelating resin chelating, realize deep purifying, specific side
Formula is as follows：
A kind of above-described pig-farm wastewater advanced treatment process, its further scheme are：
Step 1, the ratio by the pig-farm wastewater after utilization prior art biochemical treatment according to every liter of addition 0.02g-0.12g
After addition aluminum chloride flocculant is sufficiently stirred, filter up to single treatment liquid；
Step 2, the ratio addition copper chloride network by the single treatment liquid that step 1 obtains according to every liter of addition 0.1g-0.6g
Mixture, after being sufficiently stirred, is adjusted pH value to 8.0-10.5 with the sodium hydroxide solution of 1.0mol/L, makes wherein have precipitation to analyse
Go out, then proceed to stirring 30-60 minutes, filtering, up to after-treatment liquid；
Step 3, by step 2 after-treatment liquid, with the hydrochloric acid solution of 1.0mol/L by the pH value of waste water adjust to
4.0-7.0, adds copper chloride, after being sufficiently stirred, liquid passes through chelating resin according still further to the ratio of every liter of addition 0.04g-0.2g
Chelating, then can be achieved the advanced treating of pig-farm wastewater, reach emission request.
This technique has the advantage that：(1) since the pig-farm wastewater after biochemical treatment is more muddy and contains partial polymer, adopt
Single treatment is carried out to it with aluminum chloride flocculant；(2) after carrying out single treatment to the pig-farm wastewater after biochemical treatment, in waste water
Main component is nitrogenous, phosphorus compound and a small amount of metal ion, since part is nitrogenous, phosphorus compound has stronger coordination spy
Property.Therefore, this technology is based on complex-precipitation principle and carries out after-treatment to pig-farm wastewater；(3) secondary place is carried out to pig-farm wastewater
After reason, the weaker nitrogenous, phosphorus compound of part coordination ability and a small amount of metal ion are contained in waste water.Therefore, this technology is with chela
Resin is sorbing material, and pig-farm wastewater is handled three times based on Absorptive complex wave principle.Pig after handling three times
Its nitrogen content of excrement waste water is less than 20.0 milligrams/L, and phosphorus content is less than 5.0 milligrams/L, meets relevant emission standards, can directly arrange
Put, avoid the pollution to environment.
Embodiment
Embodiment one：A kind of pig-farm wastewater advanced treatment process, its further scheme are：
(1) pig-farm wastewater after 50L prior art biochemical treatments is taken, 1.0 grams of aluminum chloride flocculants is added, is sufficiently stirred
Afterwards, filter, up to single treatment liquid.
(2) 5.0 grams of copper chloride is added into single treatment liquid, it is molten with the sodium hydroxide of 1.0mol/L after being sufficiently stirred
Liquid adjusts the pH value of waste water to 8.0, makes have Precipitation in waste water, then proceedes to stirring 30 minutes, filtering, up to secondary place
Manage liquid.
(3) pH value of after-treatment liquid is adjusted to 4.0 with the hydrochloric acid solution of 1.0mol/L, adds about 2.0 grams of chlorine
Change copper, after being sufficiently stirred, by waste water by chelating resin, that is, obtain the pig-farm wastewater after advanced treating.
It is respectively by the pig-farm wastewater measurement wherein the content of nitrogen and phosphorous after advanced treating --- nitrogen content is 16.0 milligrams/L,
Phosphorus content is 4.5 milligrams/L)
Embodiment two：A kind of pig-farm wastewater advanced treatment process, its further scheme are：
(1) pig-farm wastewater after 50L prior art biochemical treatments is taken, 2.0 grams of aluminum chloride flocculants is added, is sufficiently stirred
Afterwards, filter, up to single treatment liquid.
(2) 15.0 grams of copper chloride is added into single treatment liquid, it is molten with the sodium hydroxide of 1.0mol/L after being sufficiently stirred
Liquid adjusts the pH value of waste water to 9.0, makes have Precipitation in waste water, then proceedes to stirring 50 minutes, filtering, up to secondary place
Manage liquid.
(3) pH value of after-treatment liquid is adjusted to 5.0 with the hydrochloric acid solution of 1.0mol/L, adds about 5.0 grams of chlorine
Change copper, after being sufficiently stirred, by waste water by chelating resin, that is, obtain the pig-farm wastewater after advanced treating.
It is respectively by the pig-farm wastewater measurement wherein the content of nitrogen and phosphorous after advanced treating --- nitrogen content is 14.6 milligrams/L,
Phosphorus content is 3.8 milligrams/L)
Embodiment three：A kind of pig-farm wastewater advanced treatment process, its further scheme are：
(1) pig-farm wastewater after 50L prior art biochemical treatments is taken, 4.0 grams of aluminum chloride flocculants is added, is sufficiently stirred
Afterwards, filter, up to single treatment liquid.
(2) 25.0 grams of copper chloride is added into single treatment liquid, it is molten with the sodium hydroxide of 1.0mol/L after being sufficiently stirred
Liquid adjusts the pH value of waste water to 10.0, makes have Precipitation in waste water, then proceedes to stirring 60 minutes, filtering, up to secondary
Treatment fluid.
(3) pH value of after-treatment liquid is adjusted to 6.0 with the hydrochloric acid solution of 1.0mol/L, adds about 8.5 grams of chlorine
Change copper, after being sufficiently stirred, by waste water by chelating resin, that is, obtain the pig-farm wastewater after advanced treating.
It is respectively by the pig-farm wastewater measurement wherein the content of nitrogen and phosphorous after advanced treating --- nitrogen content is 12.0 milligrams/L,
Phosphorus content is 2.6 milligrams/L)
Example IV：A kind of pig-farm wastewater advanced treatment process, its further scheme are：
(1) pig-farm wastewater after 50L prior art biochemical treatments is taken, 6.0 grams of aluminum chloride flocculants is added, is sufficiently stirred
Afterwards, filter, up to single treatment liquid.
(2) 30.0 grams of copper chloride is added into single treatment liquid, it is molten with the sodium hydroxide of 1.0mol/L after being sufficiently stirred
Liquid adjusts the pH value of waste water to 10.5, makes have Precipitation in waste water, then proceedes to stirring 30 minutes, filtering, up to secondary
Treatment fluid.
(3) pH value of after-treatment liquid is adjusted to 7.0 with the hydrochloric acid solution of 1.0mol/L, adds about 10.0 grams of chlorine
Change copper, after being sufficiently stirred, by waste water by chelating resin, that is, obtain the pig-farm wastewater after advanced treating.
It is respectively by the pig-farm wastewater measurement wherein the content of nitrogen and phosphorous after advanced treating --- nitrogen content is 9.0 milligrams/L, phosphorus
Content is 1.3 milligrams/L).
Claims (2)
1. a kind of pig-farm wastewater advanced treatment process, concrete scheme are：
Step 1, will be carried out the pig-farm wastewater after biochemical treatment using the prior art it carried out once using aluminum chloride flocculant
Processing；
Step 2, the waste liquid for obtaining step 1 add copper ion complexing agent and carry out complex-precipitation, and specific equation is as follows：
Step 3, by step 2 waste liquid by chelating resin chelating realize Absorptive complex wave, realize deep purifying, specific equation
It is as follows：
2. a kind of pig-farm wastewater advanced treatment process as claimed in claim 1, its further scheme are：
Step 1, will be added using the pig-farm wastewater after prior art biochemical treatment according to the ratio of every liter of addition 0.02g-0.12g
After aluminum chloride flocculant is sufficiently stirred, filter up to single treatment liquid；
Step 2, the ratio addition copper chloride complexing agent by the single treatment liquid that step 1 obtains according to every liter of addition 0.1g-0.6g,
After being sufficiently stirred, pH value is adjusted to 8.0-10.5 with the sodium hydroxide solution of 1.0mol/L, makes wherein have Precipitation, then
Continue stirring 30-60 minutes, filtering, up to after-treatment liquid；
Step 3, by step 2 after-treatment liquid, the pH value of waste water is adjusted to 4.0- with the hydrochloric acid solution of 1.0mol/L
7.0, copper chloride is added according still further to the ratio of every liter of addition 0.04g-0.2g, after being sufficiently stirred, liquid is chelated by chelating resin,
The advanced treating of pig-farm wastewater then can be achieved, reach emission request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145436.XA CN107902796A (en) | 2017-11-17 | 2017-11-17 | Pig-farm wastewater advanced treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711145436.XA CN107902796A (en) | 2017-11-17 | 2017-11-17 | Pig-farm wastewater advanced treatment process |
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| Publication Number | Publication Date |
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| CN107902796A true CN107902796A (en) | 2018-04-13 |
Family
ID=61845937
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711145436.XA Withdrawn CN107902796A (en) | 2017-11-17 | 2017-11-17 | Pig-farm wastewater advanced treatment process |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674589A (en) * | 2012-04-18 | 2012-09-19 | 漳州师范学院 | Treatment method of N-phosphonomethyl aminodiacetic acid wastewater |
| CN103351070A (en) * | 2013-07-26 | 2013-10-16 | 闽南师范大学 | Method for treating glyphosate waste water |
| CN105217864A (en) * | 2015-09-25 | 2016-01-06 | 浙江奇彩环境科技有限公司 | The treatment process of two cyanogen front-end volatiles waste water in Disperse Blue-60 production process |
-
2017
- 2017-11-17 CN CN201711145436.XA patent/CN107902796A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674589A (en) * | 2012-04-18 | 2012-09-19 | 漳州师范学院 | Treatment method of N-phosphonomethyl aminodiacetic acid wastewater |
| CN103351070A (en) * | 2013-07-26 | 2013-10-16 | 闽南师范大学 | Method for treating glyphosate waste water |
| CN105217864A (en) * | 2015-09-25 | 2016-01-06 | 浙江奇彩环境科技有限公司 | The treatment process of two cyanogen front-end volatiles waste water in Disperse Blue-60 production process |
Non-Patent Citations (4)
| Title |
|---|
| 华南农业大学: "《规模化猪场用水与废水处理技术》", 30 June 1996, 中国农业出版社 * |
| 李孟: "《给水处理原理》", 31 December 2013, 武汉理工大学出版社 * |
| 章耀武: "《公知药用基础化学》", 31 May 2012, 人民医院出版社 * |
| 赖日坤: "浅析PCB废水中络合态铜的处理方法", 《中国环保产业》 * |
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Application publication date: 20180413 |