CN107417025A - A kind of processing method of folic acid sulfur waste sour water - Google Patents
A kind of processing method of folic acid sulfur waste sour water Download PDFInfo
- Publication number
- CN107417025A CN107417025A CN201710681149.4A CN201710681149A CN107417025A CN 107417025 A CN107417025 A CN 107417025A CN 201710681149 A CN201710681149 A CN 201710681149A CN 107417025 A CN107417025 A CN 107417025A
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- CN
- China
- Prior art keywords
- water
- sulfuric acid
- sour water
- sulfur waste
- ferric sulfate
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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
-
- 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
-
- 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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- 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
- C02F2101/101—Sulfur 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a kind of processing method of folic acid sulfur waste sour water, by the advanced row charcoal absorption pretreatment of folic acid sulfur waste sour water, then by a certain percentage with green vitriol, oxidant reaction, sulfuric acid validation in sulfur waste sour water is utilized, finally distillation obtains the water for meeting discharging standards and the accessory substance bodied ferric sulfate for meeting national standard.The invention has the characteristics that：1. Waste Sulfuric Acid aqueous systems are preprocessed be converted into bodied ferric sulfate after, gained aqueous reaction oxygen demand, ammonia nitrogen reach discharging standards；2. Waste Sulfuric Acid aqueous systems sulfuric acid be utilized effectively gained accessory substance bodied ferric sulfate be a kind of inorganic polymer flocculant of good performance, be available for the Sewage Disposal of our company to use, also can export trade, obtain part of my profit, reduction sewage disposal expense.
Description
Technical field
The present invention relates to a kind of processing method of folic acid sulfur waste sour water.
Background technology
Folic acid (folic acid), one of vitamin B complex is one of human body and the necessary amino acid of animal, extensively
Applied to feed, food and medicine etc..In terms of feed, addition folic acid can improve the immunity of animal, promote the life of animal
It is long.In terms of medicine, folic acid has health care, anti-anemia action, promotes children's intelligence development and anti-uric acid concentration as nutrient
The effect of too high.
Traditional folic acid using NSC 71042, Triaminopyrimidine sulfate, trichloroacetone as raw material produces work
Skill, waste water output ratio is high, often produces 1t folic acid, produces 280t waste water.Wherein mainly include two kinds of waste water, one kind is waste liquor
Water, about 130 tons；Another kind is sulfur waste sour water, about 150t.Sulfur waste sour water is because its composition is complicated, and acidity is high, COD
(COD) high, ammonia nitrogen (NH3-N) it is high and can not direct biochemical treatment.How these waste water to be located in the acceptable scope of cost
National discharge index is managed, turns into the sector problem.
Domestic and international currently used waste water physicochemical processing method has：Active carbon adsorption, flocculation sedimentation, acid-base neutralization
Method, ion-exchange and ultrafiltration membrance filter method etc..Its subject matter highlighted have processing cost compared with it is high, sludge quantity is big, largely
Sludge may cause secondary pollution etc..
The content of the invention
For traditional folic acid technique, sulfuric acid and a small amount of dissolving that mass concentration is 5~10% are mainly contained in sulfur waste sour water
Organic matter (including unreacted complete reactant, intermediate and product).The present invention provides a kind of leaf for this effluent part
The processing method of sour sulfur waste sour water.Concrete thought is to use the most organic matter of charcoal absorption, and renewable resources utilize sulfur waste
Sulfuric acid in sour water, it is converted into the bodied ferric sulfate for widely using value, so as to remove the sulfuric acid in waste water, make waste water
Reach discharging standards.
Realize the technical scheme is that：A kind of processing method of folic acid sulfur waste sour water, comprises the following steps：
(1) Waste Sulfuric Acid water pretreatment：By sulfur waste sour water:Activated carbon=100g:3g~100g:20g ratio adds work
Property charcoal, to sulfur waste sour water carry out decolorization, the residence time is 2~4h；It is filtrated to get the pretreated water of colorless clear；
(2) sulfuric acid conversion is the course of reaction of bodied ferric sulfate：At room temperature, green vitriol is added into step (1)
In obtained pretreated water, stirring makes its dissolving, adds oxidant, and three expects that ratio is green vitriol:Oxidant:In advance
Handle water=100g:2g:176g~100g:20g:176g, 2~8h of stirring reaction is to system ferrous ions at 25~60 DEG C
During content ＜ 0.5%, stop reaction.
(3) separation process：The reaction solution of (2) is distilled to interior 100 DEG C of temperature, continues to fry to 300 DEG C.The water of collection, through inspection
Survey COD, NH3-N and reach discharging standards.Remaining solid is accessory substance bodied ferric sulfate, reaches national standard after testing.
Oxidant in step (3) is using one of hydrogen peroxide, sodium chlorate, potassium chlorate, sodium hypochlorite, nitric acid.
The outstanding feature and technical advantage of technical solution of the present invention are mainly reflected in：
1. Waste Sulfuric Acid aqueous systems are preprocessed be converted into bodied ferric sulfate after, gained aqueous phase COD, NH3-N reaches national row
Put standard；
2. Waste Sulfuric Acid aqueous systems sulfuric acid is utilized effectively, gained accessory substance bodied ferric sulfate is a kind of nothing of good performance
Machine high polymer coagulant, be available for the Sewage Disposal of our company to use, also can export trade, obtain part of my profit, reduce sewage disposal
Expense.
Embodiment
Embodiment 1：
(1) Waste Sulfuric Acid water pretreatment：100g activated carbons are added into 1000g sulfur waste sour waters to carry out at decolouring sulfur waste sour water
Reason, stand 4h；It is filtrated to get the pretreated water of colorless clear；COD drops to 3000ppm by 9500ppm.
(2) sulfuric acid conversion is the course of reaction of bodied ferric sulfate：At room temperature, 30g green vitriols are added into 53ml
In the pretreated water that step (1) obtains, it is stirred at room temperature to dissolving, addition 3g sodium chlorate under stirring, reaction 3h, in monitoring system
Ferrous ion content is 0.066%.
(3) separation process：The reaction solution of (2) is distilled to interior 100 DEG C of temperature, continues to fry to 300 DEG C.The water of collection, through inspection
Survey, COD=35ppm, NH3-N=14ppm, reach discharging standards.Remaining solid is accessory substance bodied ferric sulfate, through inspection
To survey, full weight of iron fraction is 21.89%, and ferrous mass fraction is 0.066%, basicity 13%, 1% solution ph=
2.07, reach national standard.
Embodiment 2：
(1) Waste Sulfuric Acid water pretreatment：100g activated carbons are added into 1000g sulfur waste sour waters to carry out at decolouring sulfur waste sour water
Reason, stand 4h；It is filtrated to get the pretreated water of colorless clear；COD drops to 3000ppm by 9500ppm.
(2) sulfuric acid conversion is the course of reaction of bodied ferric sulfate：At room temperature, 30g green vitriols are added into 53ml
In the pretreated water that step (1) obtains, it is stirred at room temperature to dissolving, stirs lower addition 3.7g potassium chlorate, react 3h, monitoring system
Ferrous ions content is 0.05%.
(3) separation process：The reaction solution of (2) is distilled to interior 100 DEG C of temperature, continues to fry to 300 DEG C.The water of collection, through inspection
Survey, COD=30ppm, NH3-N=12ppm, reach discharging standards.Remaining solid is accessory substance bodied ferric sulfate, through inspection
To survey, full weight of iron fraction is 20.52%, and ferrous mass fraction is 0.05%, basicity 13.2%, 1% solution ph=
2.05, reach national standard.
Embodiment 3：
(1) Waste Sulfuric Acid water pretreatment：100g activated carbons are added into 1000g sulfur waste sour waters to carry out at decolouring sulfur waste sour water
Reason, stand 4h；It is filtrated to get the pretreated water of colorless clear；COD drops to 3000ppm by 9500ppm.
(2) sulfuric acid conversion is the course of reaction of bodied ferric sulfate：At room temperature, 30g green vitriols are added into 53ml
In the pretreated water that step (1) obtains, it is stirred at room temperature to dissolving, is warming up to 60 DEG C, stirs lower addition 3.7g potassium chlorate, reaction
3h, monitoring system ferrous ions content are 0.031%.
(3) separation process：The reaction solution of (2) is distilled to interior 100 DEG C of temperature, continues to fry to 300 DEG C.The water of collection, through inspection
Survey, COD=29ppm, NH3-N=13ppm, reach discharging standards.Remaining solid is accessory substance bodied ferric sulfate, through inspection
To survey, full weight of iron fraction is 22.56%, and ferrous mass fraction is 0.031%, basicity 12.8%, 1% solution ph=
2.04, reach national standard.
Claims (2)
1. a kind of processing method of folic acid sulfur waste sour water, it is characterised in that comprise the following steps：
(1) Waste Sulfuric Acid water pretreatment：By sulfur waste sour water:Activated carbon=100g:3g~100g:20g ratio adds activated carbon, right
Sulfur waste sour water carries out decolorization, and the residence time is 2~4h；It is filtrated to get the pretreated water of colorless clear；
(2) sulfuric acid conversion is the course of reaction of bodied ferric sulfate：At room temperature, green vitriol is added into step (1) to obtain
Pretreated water in, stirring makes its dissolving, adds oxidant, and three expects that ratio is green vitriol:Oxidant:Pretreatment
Water=100g:2g:176g~100g:20g:176g, 2~8h of stirring reaction is to system ferrous ions content at 25~60 DEG C
During ＜ 0.5%, stop reaction.
(3) separation process：The reaction solution of (2) is distilled to interior 100 DEG C of temperature, continues to fry to 300 DEG C；The water of collection, changes after testing
Learn oxygen demand (COD), ammonia nitrogen (NH3-N) reaches discharging standards；Remaining solid is accessory substance bodied ferric sulfate, after testing
Reach national standard.
A kind of 2. processing method of folic acid sulfur waste sour water according to claim 1, it is characterised in that：Oxygen in step (3)
Agent is using one of hydrogen peroxide, sodium chlorate, potassium chlorate, sodium hypochlorite, nitric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710681149.4A CN107417025A (en) | 2017-08-10 | 2017-08-10 | A kind of processing method of folic acid sulfur waste sour water |
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| CN201710681149.4A CN107417025A (en) | 2017-08-10 | 2017-08-10 | A kind of processing method of folic acid sulfur waste sour water |
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| CN201710681149.4A Pending CN107417025A (en) | 2017-08-10 | 2017-08-10 | A kind of processing method of folic acid sulfur waste sour water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500415A (en) * | 2020-11-13 | 2021-03-16 | 安徽泰格维生素实业有限公司 | Method for recovering folic acid from wastewater in folic acid dissolution and elutriation stage |
| CN113716665A (en) * | 2021-09-22 | 2021-11-30 | 浙江吉泰新材料股份有限公司 | Method for preparing flocculating agent by utilizing strong-acid wastewater containing phosphorus and sulfur |
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| CN104478050A (en) * | 2014-12-01 | 2015-04-01 | 郑州大学 | Preparation method and application of modified polyferric sulfate for treating industrial wastewater |
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| CN105129867A (en) * | 2015-08-18 | 2015-12-09 | 铜陵海陵环保科技有限责任公司 | Method used for preparing polymeric ferric sulfate from sulfuric acid waste liquid |
| CN105174563A (en) * | 2015-09-22 | 2015-12-23 | 青岛琅琊台集团股份有限公司 | Treatment method of folic acid waste water |
| CN105776354A (en) * | 2014-12-22 | 2016-07-20 | 祐鼎（福建）光电材料有限公司 | Preparation method of polymeric ferric sulfate |
| CN105948210A (en) * | 2016-07-11 | 2016-09-21 | 哈尔滨辰能工大环保科技股份有限公司 | Method for producing polymeric ferric sulfate from raw materials industrial waste acid and scrap iron |
-
2017
- 2017-08-10 CN CN201710681149.4A patent/CN107417025A/en active Pending
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| CN1101011A (en) * | 1993-10-27 | 1995-04-05 | 北京市新技术应用研究所 | Production method for polymerization iron sulfate water-purifying agent |
| JP2000070995A (en) * | 1998-09-01 | 2000-03-07 | Kioritz Corp | Method and apparatus for treating waste cleaning water of waste gas generated in waste plastic dechlorinating and fuel-converting process |
| CN1519205A (en) * | 2003-01-25 | 2004-08-11 | 中南大学 | Method for preparing ferrous sulphate |
| CN1863732A (en) * | 2003-10-06 | 2006-11-15 | 多诺克斯颜料股份有限公司 | Method for the processing of iron-contaminated waste sulphuric acid |
| CN101037234A (en) * | 2007-02-14 | 2007-09-19 | 浙江工业大学 | Method for synthesizing polymeric ferric sulphate |
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| CN104478050A (en) * | 2014-12-01 | 2015-04-01 | 郑州大学 | Preparation method and application of modified polyferric sulfate for treating industrial wastewater |
| CN105776354A (en) * | 2014-12-22 | 2016-07-20 | 祐鼎（福建）光电材料有限公司 | Preparation method of polymeric ferric sulfate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112500415A (en) * | 2020-11-13 | 2021-03-16 | 安徽泰格维生素实业有限公司 | Method for recovering folic acid from wastewater in folic acid dissolution and elutriation stage |
| CN113716665A (en) * | 2021-09-22 | 2021-11-30 | 浙江吉泰新材料股份有限公司 | Method for preparing flocculating agent by utilizing strong-acid wastewater containing phosphorus and sulfur |
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Application publication date: 20171201 |