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Dynamic combined reaction device for biological treatment of printing and dyeing wastewater

A technology for biological treatment, printing and dyeing wastewater, applied in textile industry wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to achieve direct economic benefits, improve removal effect, and reduce membrane pollution.

Inactive Publication Date: 2013-10-09
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, most of the wastewater biological treatment technologies are independently researched or improved for an anaerobic, anoxic and aerobic process, and there are few treatment processes with anaerobic, anoxic and aerobic functions at the same time.

Method used

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  • Dynamic combined reaction device for biological treatment of printing and dyeing wastewater
  • Dynamic combined reaction device for biological treatment of printing and dyeing wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0019] The alkali reduction dyeing and finishing wastewater of a printing and dyeing enterprise is treated with the device of the present invention. The volume of the anaerobic baffle reaction zone is 160L, the volume of the aerobic dynamic reaction zone 6 is 80L, and the effective volume of the reflux chamber 17 is 15L. . Laying on the bottom of baffle chamber 3 is bright black, with an average particle size of 3.5mm anaerobic granular sludge 21. Each baffle chamber 3 is inoculated with 5kg of anaerobic granular sludge, and the packing layer 4 is filled with a series of elastic Packing, the volume of the packed packing accounts for 30% of the effective volume of each baffle chamber 3. Inoculate the domesticated surplus sludge, the sludge concentration is 20g / L. There are perforated aeration pipes 14 on both sides of the bottom of the non-woven membrane module 15 for aeration, and the domesticated activated sludge is fully mixed with the printing and dyeing wastewater, and par...

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Abstract

The invention relates to dynamic combined reaction device for biological treatment of printing and dyeing wastewater. The dynamic combined reaction device comprises an anaerobic baffling reaction region, an aerobic dynamic reaction region (6) and a non-woven fabric membrane module (15), wherein the anaerobic baffling reaction region is positioned on the front end of the aerobic dynamic reaction region (6), and the aerobic dynamic reaction region is divided into a plurality of baffling chambers (3) through partition plates (31); a return chamber (17) is connected between the anaerobic baffling reaction region and the aerobic dynamic reaction region (6), and is connected with a water inlet (1) through a water pipe; anaerobic grain sludge (21) is paved on the lower ends of the baffling chambers (3), and the middle parts of the baffling chambers (3) are provided with packing layers (4); and a perforated aerator pipe (14) is arranged below the non-woven fabric membrane module (15) arranged in the aerobic dynamic reaction region (6). The device provided by the invention has the advantages that the structure is simple, the treatment effect is good, especially, the chroma is removed at high efficiency, the recycling of printing and dyeing wastewater is realized, and the operation treatment cost is low.

Description

Technical field [0001] The invention relates to the field of wastewater biological treatment, in particular to a dynamic combined reaction device for the biological treatment of printing and dyeing wastewater. Background technique [0002] The textile industry is one of my country’s traditional pillar industries. Water consumption ranks second among all industries in the country, and wastewater discharge ranks sixth in the country. Printing and dyeing wastewater accounts for 80% of the country’s textile wastewater discharge, which is currently important. One of the sources of water pollution, the rapid development of my country's textile industry has made environmental pollution problems more prominent. Printing and dyeing wastewater is mainly composed of wastewater from printing and dyeing, rinsing and desizing wastewater processes. It has low biochemical properties, high organic content, unstable water quality and quantity, and it is difficult to treat technology. At present, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/30C02F103/30
Inventor 杨波钟启俊李方田晴朱运锋杨林明黄礼超毕深涛金诚张顺
Owner DONGHUA UNIV
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