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Organic sewage treatment complex reagent

A compound agent and organic sewage technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve trace organic pollutants, excessive heavy metal ions, increase coagulant dosage The amount and the treatment effect are not obvious, so as to achieve the effect of not easy to exceed the standard of chroma, improve the effect of water treatment, and reduce the cost of water treatment

Inactive Publication Date: 2015-05-20
QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Simply relying on increasing the dosage of coagulant can no longer solve the problem
Organic and inorganic polymer coagulants (such as polyacrylamide, activated silicic acid, etc.) can increase the floc size through the adsorption and bridging effect between destabilized colloidal particles, so as to increase the settling rate and improve the separation effect. The application effect in production is obvious, but for the problems of hard-to-destabilize colloids, ammonia nitrogen, and heavy metal ions exceeding the standard, the effect of polymers is relatively poor, and the treatment effect is not obvious
It shows that the conventional water treatment process has been unable to cope with complex problems such as low temperature and low turbidity, trace organic pollutants, excessive heavy metal ions, and severe odor, and cannot adapt to the current changes in water quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011]

[0012] The preparation method is to slowly add ferric trichloride to the polymeric ferric sulfate solution, stir, and slowly add ferrate to the above mixed solution for about 50 minutes, stir, and wait until it is completely dissolved, then slowly add activated carbon and aluminum sulfate, Stir for about 30 minutes, let it stand for half an hour, and filter it.

[0013] The mixed solution prepared by the invention has the characteristics of long-term stable storage, simple process and convenient use.

Embodiment 2

[0015]

[0016] The preparation method is the same as above.

[0017] Enhanced adsorption and flocculation, strengthened the ability to remove iron and manganese, especially the ability to remove manganese ions, greatly reducing the cost of water treatment.

Embodiment 3

[0019]

[0020] The preparation method is the same as above.

[0021] Polyacrylamide can also be added to this product, and the mass ratio does not exceed 1% of the total amount of the compound agent, which is suitable for sewage with high suspended solids. Copper dichloride can also be added to this product, and the mass ratio is 0.1% to 0.2% of the total amount of the compound agent. It has a significant effect on removing biological oxygen content (BOD), and is suitable for food processing sewage. Trichloroisocyanuric acid can also be added to the compound agent for organic sewage treatment with the addition of copper dichloride, and the proportion should not exceed 2% of the total amount of the compound agent. It has a significant effect on removing ammonia and nitrogen, and can deodorize. Suitable for food processing or textile wastewater.

[0022] The raw material ratio of this product is scientific, the process is easy to control, the product performance is excellen...

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Abstract

The invention discloses an organic sewage treatment complex reagent and a preparation method thereof. The preparation method of the complex reagent comprises the following steps: slowly adding ferric chloride to a polymeric ferric sulfate solution, and stirring for about 50 minutes; slowly adding ferrate to the mixed solution, and stirring; after the mixed solution is completely dissolved, slowly adding activated carbon and aluminum sulfate, and stirring for about 30 minutes; and after standing for half an hour, filtering to obtain the organic sewage treatment complex reagent. The product can be widely applied to the treatment of industrial sewage of food, textile, paper, leather, medicine and the like.

Description

technical field [0001] The invention relates to a water treatment technology, in particular to a compound agent for organic sewage treatment and a preparation method thereof. Background technique [0002] At present, the main methods used for sewage treatment include physicochemical method, biochemical method, chemical agent method and several processing methods combined. [0003] Sewage discharged from industries such as pesticides, pharmaceuticals, fine chemicals, and dyes not only has a high concentration of organic substances, but also is highly toxic and non-biodegradable. Most of them are persistent organic substances (POPs), which are extremely harmful to the environment and human body. They are called "three causes" (Teratogenic, carcinogenic, mutagenic) substances, environmental hormones (EDCs) substances, thus such pollutants become "priority control pollutants" for environmental protection. [0004] A category of technologies that are most likely to be effective ...

Claims

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Application Information

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IPC IPC(8): C02F1/52C02F1/28C02F1/64B01J20/20
CPCC02F1/00C02F1/281C02F1/5236C02F2101/30
Inventor 孟素芬
Owner QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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