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Low-energy-consumption wastewater treatment method

A waste water treatment, low energy consumption technology, applied in the direction of water/sewage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc., can solve the problem that the effect of nitrogen and phosphorus removal is not obvious, and the denitrification treatment cannot meet the standard and other problems, to achieve the effect of easy recycling, good purification effect and remarkable effect

Inactive Publication Date: 2020-02-04
饶汀
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the effect of denitrification and phosphorus removal is not obvious, especially for agricultural wastewater with high ammonia nitrogen content, the denitrification treatment is often not up to standard

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of modified additives:

[0020] Dissolve 8 parts of butyltrimethylammonium bromide in 10 parts of ethanol solution, dissolve 33 parts of sodium tungstate in 100 parts of water, stir, adjust the pH value to 2 with hydrochloric acid, and then heat up to 90°C , Add the above-mentioned ethanol solution containing butyltrimethylammonium bromide, and then react at 90°C for 40min. Filter, wash with water, wash with ethanol, dry, and then dissolve it in 20 parts of phosphoric acid.

Embodiment 2

[0022] Preparation of reaction membrane

[0023] Raw material ratio: 50 parts of benzimidazole, 45 parts of acrylamide, 20 parts of methyl isocyanate, 1 part of modification additive obtained in Example 1, 2 parts of diethylenetriamine, polyoxyethylene polyoxypropanol amine ether 2 parts, graphite powder 2 to 3 parts.

[0024] Test steps: mix benzimidazole, acrylamide, polyoxyethylene polyoxypropanolamine ether, graphite powder, diethylenetriamine and modification additives, stir for 5 minutes, then add methyl isocyanate and stir for 5 minutes , heated to 35°C to obtain a raw material mixture. Spread the release agent in the film-forming mold, sprinkle activated bentonite evenly on the surface of the release agent, and keep the temperature of the mold at 20°C for 20 minutes, then preheat to about 40°C, and keep the temperature Constant; then pour the above-mentioned raw material mixture into a mold, keep at 40°C, and release the material after 30 minutes to obtain a reaction...

Embodiment 3

[0026] Preparation of reaction membrane

[0027] Raw material ratio: 55 parts of benzimidazole, 60 parts of acrylamide, 30 parts of methyl isocyanate, 5 parts of modification additive obtained in Example 1, 5 parts of diethylenetriamine, polyoxyethylene polyoxypropanolamine ether 3 parts, 3 parts of graphite powder.

[0028] Test procedure: mix benzimidazole, acrylamide, polyoxyethylene polyoxypropanolamine ether, graphite powder, diethylenetriamine and modification additives, stir for 10 minutes, then add methyl isocyanate and stir for 10 minutes , heated to 40°C to obtain a raw material mixture. Spread the release agent in the film-forming mold, sprinkle the active bentonite evenly on the surface of the release agent, and keep the temperature of the mold at 30°C for 30 minutes, then preheat to about 40°C, and keep the temperature constant ; Then pour the above raw material mixture into a mold, keep at 40° C., release the material after 40 minutes, and obtain a reaction fil...

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Abstract

The invention discloses a low-energy-consumption wastewater treatment method. Wastewater is introduced into a tubular reactor, a macro-porous flat plate ceramic membrane, one or more reaction membranes and a micro-porous flat plate ceramic membrane are sequentially arranged in the tubular reactor according to the flow direction, and the ceramic membrane and the reaction membranes are arranged in parallel at equal intervals. The method has a good purification effect on wastewater, can effectively remove COD in the wastewater, basically removes all ammonia nitrogen, phosphorus and grease, and has a remarkable effect.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method for treating agricultural wastewater with low energy consumption. Background technique [0002] Agricultural wastewater is wastewater discharged from crop cultivation, livestock raising, and agricultural product processing. Wastewater is mainly divided into farmland drainage, feedlot drainage, agricultural product processing wastewater, etc. Agricultural wastewater has a large amount of water and has a wide range of impacts. According to statistics, it is 5 to 6 times larger than urban sewage and industrial wastewater causing the increase in BOD in water bodies due to pollution, and the affected water area accounts for 68% of the total water area. The prevention and control measures of agricultural wastewater pollution are mainly to reduce the way of farmland and prevent and control the pollution of various wastewater to the environment in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/44C02F101/30
CPCC02F1/44C02F1/00C02F1/444C02F2101/30
Inventor 饶汀
Owner 饶汀