CN102126779B - High-efficiency COD remover for waste water treatment - Google Patents
High-efficiency COD remover for waste water treatment Download PDFInfo
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- CN102126779B CN102126779B CN201110104133A CN201110104133A CN102126779B CN 102126779 B CN102126779 B CN 102126779B CN 201110104133 A CN201110104133 A CN 201110104133A CN 201110104133 A CN201110104133 A CN 201110104133A CN 102126779 B CN102126779 B CN 102126779B
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Abstract
The invention discloses a high-efficiency chemical oxygen demand (COD) remover for waste water treatment, which is characterized by comprising the following components in percentage by weight: 20 to 25 percent of aluminum sulfate, 25 to 30 percent of ferric sulfate, 5 to 10 percent of water glass, 10 to 25 percent of potassium permanganate and 25 to 35 percent of water. In the high-efficiency COD remover, the degradation effect on organic wastes is more than twice that of like products on the market, the addition dosage of chemicals is less, and the generation amount and treatment cost of sludge are reduced greatly; and thus, the remover is a water treatment chemical with high efficiency and cost performance, is particularly suitable for treating waste water which has large concentration of organic matters, high toxicity and chromaticity and is difficult in biorefractory, and can better adapt to and meet market requirements.
Description
Technical field
The invention belongs to water treatment field; Be specifically related to a kind of efficient COD remover that is used for wastewater treatment; This COD remover is to be the compound high molecular weight water soluble polymer of base-material with Tai-Ace S 150, ferric sulfate, water glass, potassium permanganate, is particularly useful for the processing of the organic industrial sewage and the municipal wastewater of high density.
Background technology
The particularly high salt high concentrated organic wastewater of organic waste water is handled, and is the difficult problem that numerous domestic efforts at environmental protection person and administrative authority pay close attention to always.Fast development along with China's chemical industry; Various novel Chemicals are applied to all trades and professions, particularly in the heavily contaminated industry such as medicine, chemical industry, plating, printing and dyeing, improving the quality of products, also be with serious environmental pollution problem day by day in the quality; Mainly show: organic contamination substrate concentration height in the waste water, Stability Analysis of Structures, biochemical are poor; Common process is difficult to realize qualified discharge, and processing cost is high, reduces discharging to industry energy conservation and brings great pressure.
Trend for the containment environmental degradation; Country implements major river valley water prevention and cure of pollution planning, accelerates municipal sewage treatment and reuse project construction, strict control industrial water pollution thing quantity discharged; With papermaking, food brewage, chemical industry, textile printing and dyeing industry attach most importance to, strengthen and administer and the transformation dynamics.
But the present technology of waste water control of domestic environmental protection industry (epi) lags behind; COD concentration is high in the wastewater from chemical industry, toxicity is big for solving for common technology and traditional water treatment chemical, the biodegradability difference problem be difficult to produce a desired effect, therefore the COD remover of development a new generation becomes the task of top priority.
Summary of the invention
The objective of the invention is provides a kind of efficient COD remover that is used for wastewater treatment in order to overcome above-mentioned weak point, satisfies the demand of market to high-quality and efficient Water Treatment Chemicals.
The objective of the invention is to realize in the following manner:
A kind of efficient COD remover that is used for wastewater treatment is characterized in that this efficient COD remover processed by following weight ratio ingredient:
Tai-Ace S 150 20～25%, ferric sulfate 25～30%, water glass 5～10%, potassium permanganate 10～25%, water 25～35%.
This efficient COD remover that is used for wastewater treatment is preferably processed by following weight ratio ingredient:
Tai-Ace S 150 20～25%, ferric sulfate 25～30%, water glass 5～7.5%, potassium permanganate 12.5～20%, water 25～30%.
The preparation method of above-mentioned efficient COD remover may further comprise the steps:
Tai-Ace S 150, ferric sulfate and water glass is dissolved in 40～50 ℃ the water, adds potassium permanganate several times and carried out polyreaction 2～6 hours after (being preferably 3～4 hours), be warming up to 75～85 ℃ of slakings 8～12 hours again, filter, obtain efficient COD remover.
Curing temperature is chosen 75～85 ℃, is preferably 80 ℃; Curing temperature is low excessively not to reach the slaking requirement, reacts insufficient, and temperature is too high then to have other side reactions to take place, and influences performance of products easily, and has increased the load of reaction vessel, shortens the life-span of reaction vessel.The aperture that said filtration is passed through is preferably 200～800 orders.
Efficient COD remover of the present invention is particularly useful for using in organic industrial sewage and the municipal sewage treatment of high density; Add after when wastewater treatment, directly adding (solid dilutes with suitable quantity of water earlier) or being diluted to corresponding concentration earlier, weaker concn is not less than 10% again.In wastewater treatment, adding dosage is that every liter of waste water adds 100～600mg.
COD is high more in the waste water, show that reducing substances in the water body (like organism) content is high more, and reducing substances can reduce the content of dissolved oxygen in the water body, causes the hydrobiont anoxic so that dead, and water quality is corrupt to foul.In addition, organism such as benzene, phenol also have stronger toxicity, can cause direct injury to hydrobiont and human body.Therefore, China is with the water pollutant index of COD as emphasis control.
The efficient COD remover of the present invention staple is siliceous PAFS; Utilize its strong oxidizing property destruction and change stable chemical molecular structure in the waste water; And current collection neutralization, flocculation, absorption, build bridge, volume is swept and co-precipitation etc. is multi-functional in one, processing cost is low, when removing organic pollutant significantly; Greatly improve the biodegradability of waste water, thereby reach the purpose of effective degraded COD.
The efficient COD remover of the present invention (preparing according to embodiment 1 method) and traditional water treatment agent result of use are compared.Add a little: the water side, aeration tank, usually after biochemical treatment; Dosing method: stoste is diluted to the diluent of 20% concentration earlier, makes medicament be uniformly dispersed, fully react with water, the back that stirs adds in the waste water.Shown in the concrete experimental result table 1.Can be known by data: efficient COD remover is compared with traditional water treatment agent bodied ferric sulfate, Poly aluminum Chloride (PAC); The COD degradation rate is their 2 times; And under identical degradation rate, the chemical dosage only is 1/2nd of bodied ferric sulfate, a Poly aluminum Chloride (PAC) consumption, has significantly reduced the generation and the cost of handling mud of mud; To the mud decrement in the production run technical support preferably is provided, has obtained good benefits in environment.
Table 1 removes COD effect comparison testing data table
The efficient COD remover of table 2 the present invention performance data table
The efficient COD remover of the present invention is widely used in the processing of the nitrogenous organic waste water of height such as municipal wastewater, plating, leather, textile printing and dyeing; And when change of water quality (temperature, pH value, organic contamination source etc.); Control adds a little and dosage; Can COD, total nitrogen, ammonia-N removal rate be reached 40-70%, greatly reduce biodegradable rate of load condensate; Next, because product of the present invention shows acid, dosage is big more, PH falls manyly (add the alkali adjusting if PH is lower than 6.0 need, increase cost on the contrary), so product dosage of the present invention does not need too much.With the investment of minimum, minimum dosage, it is minimum to the influence that the chemical technology of existing technology produces simultaneously to reach best direct processing cost when wastewater treatment in the present invention: i.e. the generation of the water quality impact of former water, mud etc.
With prior art beneficial effect more of the present invention: the efficient COD remover of the present invention is more than the twice of like product on the market to the degradation effect of organic waste; The chemical dosage still less; Reducing the generation and the sludge treatment cost of mud greatly, is a efficient, high performance-price ratio Water Treatment Chemicals, is particularly useful for that organic concentration is big, the processing of high toxicity, high chroma, difficult biochemical waste water; Can reduce the colourity and the COD of waste water significantly, improve the biodegradability of waste water.Be widely used in printing and dyeing, the processing and the treating water reuse project of all types of industries waste water such as chemical industry, plating, pulping and paper-making, pharmacy, scouring of wool, agricultural chemicals.The efficient COD remover of the present invention can overcome the above problems, and meets national energy-saving and emission-reduction requirement, and the many influences that can avoid the traditional chemical article that water quality is caused well adapt to and meet the need of market.
Embodiment
Below through embodiment the present invention is further set forth:
Embodiment 1
Tai-Ace S 150 20%, ferric sulfate 25%, water glass 5%, potassium permanganate 20%, water 30%.
In reaction kettle, press formula ratio and add tap water, open electronic stirring, be heated to 40 ℃; Add solid sulphuric acid aluminium, ferric sulfate and water glass; Stirring and dissolving is complete, adds potassium permanganate several times and carries out polyreaction, reacts after 2 hours; Be warming up to 80 ℃ of stable slakings 12 hours again, 400 order mylars are crossed and are filtered the transparent liquid product.
Embodiment 2
Tai-Ace S 150 20%, ferric sulfate 30%, water glass 5%, potassium permanganate 15%, water 30%.
In reaction kettle, press formula ratio and add tap water, open electronic stirring, be heated to 50 ℃; Add solid sulphuric acid aluminium, ferric sulfate and water glass, stirring and dissolving is complete, adds potassium permanganate several times and carries out polyreaction; React after 4 hours; Be warming up to 85 ℃ of stable slakings 8 hours again, 400 order mylars are crossed and are filtered the transparent liquid product, and liquid product crushes and screens behind drying machine drying and promptly gets the efficient COD remover of solid granular.Add a little: the water side, aeration tank; Dosing method: dilution earlier
Become the diluent of 20% concentration, make medicament be uniformly dispersed, fully react with water, the back that stirs adds in the waste water.
Embodiment 3
Tai-Ace S 150 25%, ferric sulfate 25%, water glass 7.5%, potassium permanganate 12.5%, water 30%.
In reaction kettle, press formula ratio and add tap water, open electronic stirring, be heated to 40 ℃; Add solid sulphuric acid aluminium, ferric sulfate and water glass; Stirring and dissolving is complete, adds potassium permanganate several times and carries out polyreaction, reacts after 2 hours; Be warming up to 80 ℃ of stable slakings 12 hours again, 400 order mylars are crossed and are filtered the transparent liquid product.Add a little: the water side, aeration tank; Dosing method: be diluted to the diluent of 20% concentration earlier, make medicament be uniformly dispersed, fully react with water, the back that stirs adds in the waste water.
Embodiment 4
Tai-Ace S 150 25%, ferric sulfate 30%, water glass 10%, potassium permanganate 10%, water 25%.
In reaction kettle, press formula ratio and add tap water, open electronic stirring, be heated to 40 ℃; Add solid sulphuric acid aluminium, ferric sulfate and water glass; Stirring and dissolving is complete, adds potassium permanganate several times and carries out polyreaction, reacts after 6 hours; Be warming up to 75 ℃ of stable slakings 10 hours again, 200 order mylars are crossed and are filtered the transparent liquid product.Add a little: water side, aeration tank (after the biochemical treatment); Dosing method: be diluted to the diluent of 20% concentration earlier, make medicament be uniformly dispersed, fully react with water, the back that stirs adds in the waste water.
Embodiment 5
Tai-Ace S 150 20%, ferric sulfate 25%, water glass 5%, potassium permanganate 15%, water 35%.
In reaction kettle, press formula ratio and add tap water, open electronic stirring, be heated to 45 ℃; Add solid sulphuric acid aluminium, ferric sulfate and water glass; Stirring and dissolving is complete, adds potassium permanganate several times and carries out polyreaction, reacts after 4 hours; Be warming up to 80 ℃ of stable slakings 12 hours again, 400 order mylars are crossed and are filtered the transparent liquid product.Add a little: the water side, aeration tank, usually after biochemical treatment; Dosing method: be diluted to the diluent of 20% concentration earlier, make medicament be uniformly dispersed, fully react with water, the back that stirs adds in the waste water.
Claims (6)
1. efficient COD remover that is used for wastewater treatment is characterized in that this efficient COD remover processed by following weight ratio ingredient:
Tai-Ace S 150 20 ~ 25%, ferric sulfate 25 ~ 30%, water glass 5 ~ 10%, potassium permanganate 10 ~ 25%, water 25 ~ 35%;
The preparation method of above-mentioned efficient COD remover may further comprise the steps: Tai-Ace S 150, ferric sulfate and water glass are dissolved in 40 ~ 50 ℃ the water; Add potassium permanganate several times and carry out polyreaction after 2 ~ 6 hours; Be warming up to 75 ~ 85 ℃ of slakings 8 ~ 12 hours again, filter, obtain efficient COD remover.
2. the efficient COD remover that is used for wastewater treatment according to claim 1 is characterized in that this efficient COD remover processed by following weight ratio ingredient:
Tai-Ace S 150 20 ~ 25%, ferric sulfate 25 ~ 30%, water glass 5 ~ 7.5%, potassium permanganate 12.5 ~ 20%, water 25 ~ 30%.
3. the preparation method of the described efficient COD remover of claim 1 is characterized in that this method may further comprise the steps:
Tai-Ace S 150, ferric sulfate and water glass is dissolved in 40 ~ 50 ℃ the water, adds potassium permanganate several times and carry out polyreaction after 2 ~ 6 hours, be warming up to 75 ~ 85 ℃ of slakings 8 ~ 12 hours again, filter, obtain efficient COD remover.
4. the preparation method of efficient COD remover according to claim 3 is characterized in that polymerization reaction time is 3 ~ 4 hours.
5. the preparation method of efficient COD remover according to claim 3 is characterized in that curing temperature is 80 ℃.
6. the preparation method of efficient COD remover according to claim 3, it is characterized in that filtering the aperture of passing through is 200 ~ 800 orders.
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| CN103708600A (en) * | 2013-12-30 | 2014-04-09 | 珠海市德莱环保科技有限公司 | Strong oxidant for papermaking waste water CODcr degradation and method for degrading CODcr in waste water |
| CN104891624A (en) * | 2015-06-25 | 2015-09-09 | 金双蕾 | Water treatment chemical for removing chlorobenzene compounds in water |
| CN105253984A (en) * | 2015-10-30 | 2016-01-20 | 朱忠良 | Efficient COD (chemical oxygen demand) remover, preparation method of efficient COD remover and application of efficient COD remover |
| CN105692859B (en) * | 2016-01-22 | 2018-06-19 | 南通海陵环境检测有限公司 | Strong oxidizer and its application |
| CN111018071A (en) * | 2019-12-26 | 2020-04-17 | 辽宁鑫隆科技有限公司 | COD remover |
| CN111233057A (en) * | 2020-02-13 | 2020-06-05 | 李慎强 | Preparation method of efficient COD (chemical oxygen demand) remover |
| CN111875017B (en) * | 2020-07-14 | 2022-08-05 | 福建省金皇环保科技有限公司 | Papermaking wastewater treatment agent and preparation method thereof |
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| CN1762845A (en) * | 2004-10-20 | 2006-04-26 | 哈尔滨工业大学 | Composite medicament for water disposal |
| WO2006056022A1 (en) * | 2004-11-26 | 2006-06-01 | Hardman Australia Pty Ltd | Water treatment process |
| CN101503239A (en) * | 2009-03-23 | 2009-08-12 | 中国科学院生态环境研究中心 | Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment |
| CN101985373A (en) * | 2010-11-30 | 2011-03-16 | 常州大学 | Coagulant for removing algae and preparation method thereof |
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| CN1762845A (en) * | 2004-10-20 | 2006-04-26 | 哈尔滨工业大学 | Composite medicament for water disposal |
| WO2006056022A1 (en) * | 2004-11-26 | 2006-06-01 | Hardman Australia Pty Ltd | Water treatment process |
| CN101503239A (en) * | 2009-03-23 | 2009-08-12 | 中国科学院生态环境研究中心 | Multicomponent composite flocculating setting agent and use in arsenic contamination water treatment |
| CN101985373A (en) * | 2010-11-30 | 2011-03-16 | 常州大学 | Coagulant for removing algae and preparation method thereof |
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