CN111099666A - Coking wastewater treatment agent - Google Patents
Coking wastewater treatment agent Download PDFInfo
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- CN111099666A CN111099666A CN201811250173.3A CN201811250173A CN111099666A CN 111099666 A CN111099666 A CN 111099666A CN 201811250173 A CN201811250173 A CN 201811250173A CN 111099666 A CN111099666 A CN 111099666A
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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
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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
- C02F1/52—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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
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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
- C02F2101/20—Heavy metals or 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention relates to a coking wastewater treatment agent, which is formed by mixing a decolorizing agent, a water purifying agent and a treatment auxiliary agent; the decoloring agent comprises the following material components in parts by weight: 15-20 parts of dicyandiamide formaldehyde polycondensate, 10-30 parts of surfactant and 50-75 parts of water; the water purifying agent comprises the following material components in parts by weight: 8-15 parts of polyacrylamide, 13-18 parts of sodium silicate, 16-22 parts of ferric sulfate, 7-12 parts of tartaric acid, 10-15 parts of aluminum sulfate and 10-30 parts of water; the processing aid is maleic acid-acrylic acid copolymer or guar gum. The invention develops a coking wastewater treating agent which can effectively remove the color of coking wastewater, has high COD treatment efficiency, higher phenol and cyanogen treatment efficiency, stable performance and lower production cost.
Description
Technical Field
The invention belongs to the technical field of treating agents, relates to a wastewater treating agent, and particularly relates to a coking wastewater treating agent.
Background
The coking wastewater mainly comes from coking plants and gas plants, and the chromatic value of the coking wastewater is higher. At present, domestic coking wastewater is treated by a biological method and then discharged, the technology is one of the technologies commonly used in the coking industry at present, but the coking wastewater has complex components and poor biodegradability, and the external drainage is dark brown, so the coking wastewater needs to be decolorized, and a commonly used decolorizing agent in the industry is activated carbon, but the activated carbon has low absorption speed, large consumption and difficult regeneration of the used activated carbon.
In addition, the coking wastewater has complex pollutant composition, contains volatile phenol, a plurality of aromatic organic compounds difficult to biodegrade, polycyclic compounds, oxygen, sulfur and nitrogen heterocyclic compounds, and the like, the coking wastewater contains high-concentration ammonia, phenol and sulfide, the main wastewater is phenol-cyanogen wastewater, the coking wastewater is industrial wastewater which is difficult to treat and has high COD value and high phenol value, and if the wastewater is not treated, the wastewater is directly discharged into a water body, so that biological poisoning and even death can be caused, crops are reduced in yield or withered, and chronic poisoning and great harm can be caused after people drink the wastewater.
Disclosure of Invention
In order to solve the technical problems of decolorant and treatment agent efficiency of the existing coking wastewater, the invention develops a coking wastewater treatment agent which can effectively remove the color of the coking wastewater, has high COD treatment efficiency, higher phenol and cyanogen treatment efficiency, stable performance of the treatment agent and lower production cost.
A coking wastewater treatment agent is characterized in that: the treatment agent comprises a decoloring agent, a water purifying agent and a treatment auxiliary agent which are mixed;
the decoloring agent comprises the following material components in parts by weight: 15-20 parts of dicyandiamide formaldehyde polycondensate, 10-30 parts of surfactant and 50-75 parts of water;
the water purifying agent comprises the following material components in parts by weight: 8-15 parts of polyacrylamide, 13-18 parts of sodium silicate, 16-22 parts of ferric sulfate, 7-12 parts of tartaric acid, 10-15 parts of aluminum sulfate and 10-30 parts of water.
The processing aid is maleic acid-acrylic acid copolymer or guar gum.
The surfactant is a substance which has fixed hydrophilic and lipophilic groups, can be directionally arranged on the surface of a solution and can obviously reduce the surface tension.
The decolorizing agent comprises the following material components in parts by weight: 18 parts of dicyandiamide formaldehyde polycondensate, 25 parts of surfactant and 60 parts of water.
The water purifying agent comprises the following material components in parts by weight: 12 parts of polyacrylamide, 15 parts of sodium silicate, 20 parts of ferric sulfate, 9 parts of tartaric acid, 13 parts of aluminum sulfate and 30 parts of water.
The invention has the beneficial effects that:
1. the decoloring agent has better decoloring effect, the raw materials are cheap and easy to obtain, and more importantly, the decoloring agent is pollution-free.
2. The invention has special effect on the treatment of the coking water, the use of the treating agent is less influenced by the temperature, and only the treating agent is added in the treatment of the coking wastewater, and flows into a sedimentation tank after being stirred, so that the running cost and the chemical agent cost can be greatly saved, and the raw material cost is obviously reduced.
3. After the coking wastewater treatment agent provided by the invention carries out source treatment on coking wastewater, the coking after treatment can reach the water index for coking coke washing and coke cutting, and the stable operation of a sewage treatment plant and the standard-reaching discharge of wastewater are ensured.
4. The invention makes full use of the mutual compensation performance of iron ions and aluminum ions in aluminum sulfate and ferric sulfate, effectively avoids the limitation of metal ions to the application range of the water purifying agent, and has more stable treatment effect and lower medicament use cost.
5. The invention has wide range of removing harmful substances in the wastewater, can treat various harmful components in the wastewater, has the advantages of several wastewater treatment agents, has stable chemical properties, and can effectively remove the harmful substances in the wastewater, such as formaldehyde, heavy metals, COD, phosphorus and other harmful particulate matters.
Detailed Description
The specific embodiments of the present invention will now be further described with reference to the following examples.
The invention provides a coking wastewater treatment agent, which is formed by mixing a decolorizing agent, a water purifying agent and a treatment auxiliary agent; the decoloring agent comprises the following material components in parts by weight: 15-20 parts of dicyandiamide formaldehyde polycondensate, 10-30 parts of surfactant and 50-75 parts of water. The water purifying agent comprises the following material components in parts by weight: 8-15 parts of polyacrylamide, 13-18 parts of sodium silicate, 16-22 parts of ferric sulfate, 7-12 parts of tartaric acid, 10-15 parts of aluminum sulfate and 10-30 parts of water. The processing aid is maleic acid-acrylic acid copolymer or guar gum. The surfactant is a substance which has fixed hydrophilic and lipophilic groups, can be directionally arranged on the surface of a solution and can obviously reduce the surface tension.
Example 1
The decoloring agent comprises the following material components in parts by weight: 15 parts of dicyandiamide-formaldehyde polycondensate, 10 parts of surfactant and 70 parts of water.
The water purifying agent comprises the following material components in parts by weight: 8 parts of polyacrylamide, 13 parts of sodium silicate, 16 parts of ferric sulfate, 7 parts of tartaric acid, 10 parts of aluminum sulfate and 10 parts of water.
The processing aid is guar gum. The guar gum adopted by the embodiment is prepared by taking natural guar gum as a raw material, removing the epidermis and the germ to obtain the remaining endosperm part which mainly contains galactose and mannose, drying, crushing, pressurizing, hydrolyzing, precipitating with a 20% ethanol solution, centrifugally separating, drying, and reacting with water-loss condensed glyceryl ether trimethyl ammonium chloride. The thickening performance of the guar gum solution is 4-7 times higher than that of starch, the guar gum solution is stable in the pH range of 4.0-10.5, the hydration is very quick when the pH is 8.0, and in the wastewater treatment, the guar gum and the derivatives thereof are used as flocculating agents (high polymer capable of enabling fine solid dispersed in liquid to form flocculate), so that suspended particles in the liquid can be gathered and connected to form coarse flocculent aggregates or agglomerates, the separation or conversion of pollutants into harmless substances is facilitated, and the coking wastewater is purified to meet the actual needs.
When the treating agent of the embodiment is used, water is added to prepare the liquid treating agent with the required tonnage, and the liquid treating agent is added.
Example 2
The decoloring agent comprises the following material components in parts by weight: 18 parts of dicyandiamide formaldehyde polycondensate, 25 parts of surfactant and 60 parts of water.
The water purifying agent comprises the following material components in parts by weight: 12 parts of polyacrylamide, 15 parts of sodium silicate, 20 parts of ferric sulfate, 9 parts of tartaric acid, 13 parts of aluminum sulfate and 30 parts of water.
The processing aid is maleic acid-acrylic acid copolymer.
When the treating agent of the embodiment is used, water is added to prepare the liquid treating agent with the required tonnage, and the liquid treating agent is added.
Example 3
The decoloring agent comprises the following material components in parts by weight: 20 parts of dicyandiamide formaldehyde polycondensate, 30 parts of surfactant and 50 parts of water.
The water purifying agent comprises the following material components in parts by weight: 15 parts of polyacrylic acyl, 18 parts of sodium silicate, 22 parts of ferric sulfate, 12 parts of tartaric acid, 15 parts of aluminum sulfate and 15 parts of water.
The processing aid is guar gum.
When the treating agent of the embodiment is used, water is added to prepare the liquid treating agent with the required tonnage, and the liquid treating agent is added.
Claims (5)
1. A coking wastewater treatment agent is characterized in that: the treatment agent comprises a decoloring agent, a water purifying agent and a treatment auxiliary agent which are mixed;
the decoloring agent comprises the following material components in parts by weight: 15-20 parts of dicyandiamide formaldehyde polycondensate, 10-30 parts of surfactant and 50-75 parts of water;
the water purifying agent comprises the following material components in parts by weight: 8-15 parts of polyacrylamide, 13-18 parts of sodium silicate, 16-22 parts of ferric sulfate, 7-12 parts of tartaric acid, 10-15 parts of aluminum sulfate and 10-30 parts of water.
2. The coking wastewater treatment agent according to claim 1, characterized in that: the processing aid is maleic acid-acrylic acid copolymer or guar gum.
3. The coking wastewater treatment agent according to claim 1, characterized in that: the surfactant is a substance which has fixed hydrophilic and lipophilic groups, can be directionally arranged on the surface of a solution and can obviously reduce the surface tension.
4. The coking wastewater treatment agent according to claim 1, characterized in that: the decoloring agent comprises the following material components in parts by weight: 18 parts of dicyandiamide formaldehyde polycondensate, 25 parts of surfactant and 60 parts of water.
5. The coking wastewater treatment agent according to claim 1, characterized in that: the water purifying agent comprises the following material components in parts by weight: 12 parts of polyacrylamide, 15 parts of sodium silicate, 20 parts of ferric sulfate, 9 parts of tartaric acid, 13 parts of aluminum sulfate and 30 parts of water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250173.3A CN111099666A (en) | 2018-10-25 | 2018-10-25 | Coking wastewater treatment agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250173.3A CN111099666A (en) | 2018-10-25 | 2018-10-25 | Coking wastewater treatment agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111099666A true CN111099666A (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811250173.3A Pending CN111099666A (en) | 2018-10-25 | 2018-10-25 | Coking wastewater treatment agent |
Country Status (1)
| Country | Link |
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| CN (1) | CN111099666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409040A (en) * | 2022-01-18 | 2022-04-29 | 安徽瑞和新材料有限公司 | Compound flocculant for treating high-turbidity industrial wastewater |
-
2018
- 2018-10-25 CN CN201811250173.3A patent/CN111099666A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114409040A (en) * | 2022-01-18 | 2022-04-29 | 安徽瑞和新材料有限公司 | Compound flocculant for treating high-turbidity industrial wastewater |
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Application publication date: 20200505 |