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Water recycling device in artificial wetland organic industrial water with high concentration

A constructed wetland, high-concentration technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., can solve the problem of backward treatment technology, low reuse rate, High operating costs and other issues, to achieve the effect of low investment, small footprint, and low operating costs

Inactive Publication Date: 2010-04-14
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

At present, my country's reclaimed water reuse has just started, the treatment technology is relatively backward, and the operation cost is relatively high
In particular, the reuse rate of high-concentration organic matter water is very low, and it is almost discharged after simple treatment

Method used

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  • Water recycling device in artificial wetland organic industrial water with high concentration
  • Water recycling device in artificial wetland organic industrial water with high concentration

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specific example

[0021] A specific example is as follows:

[0022] The water body is designed as an industrial water plant, the influent organic pollutant concentration is 6000mg / L, the designed effluent water quality is 20mg / L, and the designed flow rate is 400m 3 / d The removal efficiency of organic matter in each process stage is respectively, the removal rate of the neutralization adjustment tank is 25%, and the effluent water quality is 4500mg / L. The removal rate of organic matter in the hydrolysis regulating tank is 30%, and the effluent water quality index is 3150mg / L. The removal rate of organic matter in the anaerobic tank is 80%, and the effluent quality is 630mg / L. The removal rate of organic matter in the contact oxidation tank is 60%, and the effluent index is 50mg / L. The removal rate of organic matter in the sedimentation tank is 60%, and the effluent index is 20mg / L. The organic matter removal rate of the constructed wetland is 80%, and the effluent index is 4mg / L.

[0023] ...

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Abstract

A water recycling device in artificial wetland organic industrial water with high concentration comprises a grit settling tank, a grid, a collected water neutralization tank, an immersible stirrer, a first-stage sewage pump, a hydrolysis equalizing tank, a second-stage sewage pump, a UASB reactor, a three-phase separator, a water distributor, an anaerobic filter chamber, anaerobic filler, a blower, aerobic filler, an aerator, a biological contact oxidation tank, a secondary settlement tank, a travelling type sludge scraping machine, a sledge tank, a sledge pump, a sledge condensed tank, an underflow pump, a belt type filter press, electrolytic filler, a sterilizing tank, a chlorine adding pump, a chlorine adding device, a chlorine dioxide generator, a monitor and an artificial wetland. The invention can be widely applied in water recycling systems in different organic waste water with high concentration, and has the characteristics of less investment, stable operation, resource utilization, low operation cost and the like.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a water reuse device for artificial wetland organic industrial water. Background technique [0002] my country is a country with severe drought and water shortage. The total amount of fresh water resources is 2.8 trillion cubic meters, accounting for 6% of global water resources, ranking fourth in the world after Brazil, Russia and Canada, but the per capita is only 2,300 cubic meters, which is only 1 / 4 of the world average. 1 / 5 of the United States, ranking 121st in the world, is one of the 13 countries with the poorest per capita water resources in the world, and the distribution of water resources in regions is extremely uneven, and the contradiction between water supply and demand is very prominent. Reuse of reclaimed water is one of the main ways to utilize sewage water resources. At present, my country's reclaimed water reuse has just started, the treatment tec...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/30C02F1/50
Inventor 张列宇席北斗熊瑛许其功
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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