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Dyeing and printing wastewater sludge reduction treatment apparatus and method

A technology for printing and dyeing wastewater and treatment device, which is applied in water/sludge/sewage treatment, water/sewage treatment, neutralized water/sewage treatment, etc. Simple treatment process and the effect of reducing the amount of sludge

Inactive Publication Date: 2018-12-14
HANGZHOU KAIYUAN ENVIRONMENTAL PROTECTION ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technical solution adopts a combination of physicochemical and biochemical treatment methods to treat printing and dyeing wastewater, and the amount of sludge produced is far greater than that produced by the full biochemical treatment method, which increases the burden of sludge treatment

Method used

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  • Dyeing and printing wastewater sludge reduction treatment apparatus and method

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Embodiment 1

[0041] Such as figure 1 Shown: a printing and dyeing wastewater sludge reduction treatment device, including a regulating tank 1 connected by pipelines, a hydrolytic acidification tank 9, a middle sedimentation tank 13, an aerobic tank 18, a secondary sedimentation tank 21, an ozone oxidation tank 26, a contact Oxidation pool 31 and final sedimentation pool 32, the printing and dyeing wastewater passes through the regulating pool, the hydrolysis acidification pool, the intermediate sedimentation pool, the aerobic pool, the secondary sedimentation pool, the ozone oxidation pool, the The contact oxidation tank and the middle sedimentation tank are used for printing and dyeing wastewater sludge reduction treatment.

[0042] A perforated aeration pipe 5 is provided at the inner bottom of the regulating tank, and a first fan 2 connected to the perforated aerating pipe, a pH automatic detection and adjusting device 3, a cooling tower 4, a water diversion tank 6, a cooling tower, and...

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Abstract

The invention relates to the technical field of dyeing and printing wastewater treatment and discloses a dyeing and printing wastewater sludge reduction treatment apparatus including a regulation tank, a hydrolysis acidification tank, a middle sedimentation tank, an aeration tank, a secondary sedimentation tank, an ozone oxidizing tank, a contact oxidizing tank and a final sedimentation tank, which are connected successively via pipelines. Through the ozone catalytic oxidization with combination of anaerobic or aerobic process and the effect of the sedimentation tanks, all-biochemical treatment on the dyeing and printing wastewater is achieved. In the whole treatment process, it is unnecessary to add extra water treatment agent, so that the method is simple in process and can greatly reduce the quantity of sludge, thus achieving the object of sludge reduction in the dyeing and printing wastewater in enterprises. After treatment, pollutant concentration of the dyeing and printing wastewater is reduced, and the wastewater can satisfy demands of pipeline accommodation and discharge or recycling utilization. The apparatus achieves the sludge reduction of the system.

Description

technical field [0001] The invention relates to the technical field of sewage treatment of printing and dyeing wastewater, in particular to a device and method for reducing the amount of sludge in printing and dyeing wastewater. Background technique [0002] Printing and dyeing wastewater is the main source of pollution in the textile industry. Printing and dyeing wastewater discharged from cotton, hemp, chemical fiber and their blended products, silk-based printing, wool dyeing and finishing, and silk factories. Printing and dyeing wastewater not only has a large amount of discharge, but also has a high degree of chroma and pollution. With the application of fiber products, pulp, dyes, detergents, chemical auxiliaries, and finishing agents, the composition of printing and dyeing wastewater is constantly changing, and the treatment is more difficult. Big. [0003] Printing and dyeing wastewater has the characteristics of large water volume, high content of organic pollutan...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/66C02F1/725C02F1/78C02F7/00C02F9/00C02F2001/007C02F2101/30C02F2303/06
Inventor 朱和林来东奇吕清雷金明杨敏
Owner HANGZHOU KAIYUAN ENVIRONMENTAL PROTECTION ENG
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