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Tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method

A printing and dyeing wastewater, integrated method technology, applied in textile industry wastewater treatment, water/sewage treatment, biological water/sewage treatment, etc. The effect of high water flux, reduced COD value, and large inner cavity flow channel

Active Publication Date: 2019-08-23
新疆水处理工程技术研究中心有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Filtration and sedimentation can remove suspended particles in sewage, but it is difficult to remove high-molecular refractory organic matter, and pretreatment has a low COD removal rate

Method used

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  • Tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method
  • Tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method
  • Tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with specific embodiments.

[0025] refer to figure 1 , an integrated method for pretreatment of high-concentration printing and dyeing wastewater based on tubular membranes, including a pretreatment unit, a biochemical treatment unit, a deep reuse treatment unit, and a sludge treatment unit. The pretreatment unit includes a regulating tank, coagulation and sedimentation Pool and tubular membrane, the biochemical treatment unit includes a catalytic oxidation device and an aerobic tubular membrane bioreactor, and the deep reuse treatment unit includes ultrafiltration, reverse osmosis, electric drive device, evaporation crystallization device and water production tank, The sludge treatment unit includes a plate and frame filter press and a spray dryer.

[0026] Among them: the tubular membrane has the dual functions of removing insoluble and soluble macromolecular organic matter and desalination. The tu...

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Abstract

The invention discloses a tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method. A device of the tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method comprises a pretreatment unit, a biochemical treatment unit, a deep recycling treatment unit, and a sludge treatment unit; the pretreatment unit comprises an adjusting tank, a coagulation sedimentation basin, and a tubular membrane; the biochemical treatment unit comprises a catalytic oxidation device and an aerobic tubular membrane bioreactor;the deep recycling treatment unit comprises an ultrafiltration device, an reverse osmosis device, an electric driving device, an evaporation crystallization device, and a water production tank; the sludge treatment unit comprises a plate and frame filter press and a spray drying device. According to the tubular membrane based high concentration printing and dyeing waste water pretreatment integrated method, the tubular membrane is adopted for pretreatment to remove refractory high pollution organic matters, reduce waste water COD, shortening treatment process, reducing civil engineering operation cost, recycling sodium sulfate crystalloid salt in weaving printing and dyeing industry, realizing recycling of industrial salt, and realizing weaving enterprise printing and dyeing printing anddyeing waste water zero discharge.

Description

technical field [0001] The invention relates to the technical field of printing and dyeing wastewater, in particular to an integrated method for pretreatment of high-concentration printing and dyeing wastewater based on tubular membranes. Background technique [0002] At present, the discharge of industrial wastewater in my country has reached 21.29 billion tons, among which the top five industries are papermaking, chemical industry, textile, electric power and coal, and the discharge of textile wastewater ranks third in the discharge of industrial wastewater. Therefore, the printing and dyeing industry is very important. industries in urgent need of pollution control. However, my country's printing and dyeing industry consumes a lot of water and causes astonishing environmental pollution. At the same time, its water environment management and deep utilization of water resources and other technical means are backward, which makes the treatment rate and reuse rate of my countr...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F11/12C01D5/00C02F103/30C02F101/30
CPCC02F9/00C02F11/122C01D5/00C02F2103/30C02F2101/30C02F1/5236C02F1/56C02F1/44C02F1/66C02F1/725C02F3/1268C02F1/444C02F1/441C02F1/048
Inventor 曾凡付许白羽晁燕刘媛媛
Owner 新疆水处理工程技术研究中心有限公司
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