Novel compound decolorant and wastewater decolorizing treatment method applying same

A treatment method and technology for decolorizing agents, which are applied in water/sewage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc. Substance residues and other problems, to achieve the effect of convenient application, high safety, and reasonable components

Active Publication Date: 2016-05-04
SUZHOU TASHANSHI ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among them, the decolorization of sewage (waste water) has always been one of the hot research issues in the field of water treatment. Chinese patent CN104692471A provides a method for preparing an industrial decolorant, using powdered silica gel and pickling waste liquid as raw materials, but the decolorization The safety of the agent is difficult to be guaranteed, and the application limitations are relatively large
Chinese patent CN104475036A provides a kind of preparation method of industrial sewage wastewater decolorant, utilizes dicyandiamide and formaldehyde as main raw material, prepares dicyandiamide formaldehyde condensation polymer as decolorizing agent, yet, dicyandiamide formaldehyde condensation polymer has acidity and certain Corrosive, also has certain toxicity, poor stability and safety, has many limitations for drinking water, food, medicine and other fields
In addition, the Chinese patent application number 2003101155707 discloses a composite water treatment oxidative decolorizing agent, which is decolorized by oxidizing agents such as hydrogen peroxide and ozone. Oxide, also easily lead to chemical residues
In addition, complex equipment and confined spaces are required, and leakage can cause serious social harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A kind of decolorization treatment method of application industrial waste water, comprises the following steps:

[0034] (1) Summarize the wastewater and collect it after pretreatment in the grid well;

[0035] (2) per m 3 For waste water calculation, add 20g new composite decolorizer;

[0036] Described novel composite decolorizing agent, by weight component, comprises following component:

[0037] Modified poultry feather keratin 30 parts

[0038] Chitosan 15 parts

[0039] Activated carbon 5 parts

[0040] Cationic polyacrylamide 1 part

[0041] 10 parts activated clay

[0042] 2 parts polyaspartic acid;

[0043] Wherein, described activated carbon is the activated carbon powder by 300 mesh sieves;

[0044] (3) Adjust the pH to 5 with hydrochloric acid and / or sodium hydroxide at room temperature;

[0045] (4) Stir for 30 minutes at a speed of 200r / min, then let stand for 60 minutes;

[0046] (5) Filtration to complete the decolorization treatment.

Embodiment 2

[0048] A kind of decolorization treatment method using domestic waste water, comprises the following steps:

[0049] (1) Summarize the wastewater and collect it after pretreatment in the grid well;

[0050] (2) per m 3 For wastewater calculation, add 50g of new composite decolorizer;

[0051] Described novel composite decolorizing agent, by weight component, comprises following component:

[0052] Human hair keratin 50 parts

[0053] Chitosan 20 parts

[0054] Activated carbon 10 parts

[0055] 3 parts polyethyleneimine

[0056] Activated white clay 20 parts

[0057] 5 parts of polyepoxysuccinic acid;

[0058] Wherein, described activated carbon is the activated carbon powder by 500 mesh sieves;

[0059] (3) Adjust the pH to 7 with hydrochloric acid and / or sodium hydroxide at room temperature;

[0060] (4) Stir for 45 minutes at a speed of 500r / min, then let stand for 90 minutes;

[0061] (5) Filtration to complete the decolorization treatment.

Embodiment 3

[0063] A kind of decolorization treatment method using domestic waste water, comprises the following steps:

[0064] (1) Summarize the wastewater and collect it after pretreatment in the grid well;

[0065] (2) per m 3 For waste water calculation, add 30g new composite decolorizer;

[0066] Described novel composite decolorizing agent, by weight component, comprises following component:

[0067] Human hair keratin 30 parts

[0068] Chitosan 18 parts

[0069] Activated carbon 8 parts

[0070] 1 part polyethyleneimine

[0071] Activated white clay 15 parts

[0072] 2 parts polyaspartic acid

[0073] 3 parts of polyepoxysuccinic acid;

[0074] Wherein, described activated carbon is the activated carbon powder by 400 mesh sieves;

[0075] (3) Adjust the pH to 6 with hydrochloric acid and / or sodium hydroxide at room temperature;

[0076] (4) Stir for 35 minutes at a speed of 400r / min, then let stand for 80 minutes;

[0077] (5) Filtration to complete the decolorization t...

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PUM

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Abstract

The invention provides novel compound decolorant and a wastewater decolorizing treatment method applying the same. The novel compound decolorant is reasonable in component, wide in raw material source, low in application cost, high in decolorizing efficiency, good in decolorizing effect, high in safety, environmentally friendly, wide in applicability and capable of being applied to multiple fields and has extremely high popularization value. The wastewater decolorizing treatment method applying the same is reasonable, simple and convenient to apply.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a novel composite decolorizing agent and a wastewater decolorization treatment method using the novel composite decolorizing agent. Background technique [0002] At present, water resources in quite a large area of ​​our country are in a state of tension, and the problem of water resource scarcity is gradually becoming serious. At the same time, water pollution has become an issue of increasing concern, and the pressure on wastewater (sewage) treatment is also increasing. How to solve the shortage of water resources and waste water (sewage) treatment has become an urgent social problem to be solved. [0003] However, industrial sewage (wastewater) and domestic sewage (wastewater) contain a large amount of organic pollutants and pathogens. If they are discharged without treatment or the treatment is not thorough enough to cause the discharge to fail to meet the standard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/52C02F1/56C02F5/12
CPCC02F1/281C02F1/283C02F1/286C02F1/5263C02F1/547C02F1/56C02F5/12C02F2101/308
Inventor 袁兴平杨爽
Owner SUZHOU TASHANSHI ENVIRONMENTAL PROTECTION TECH CO LTD
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