Treatment process for wastewater from synthetic leather production

A technology for production of wastewater and treatment process, applied in biological water/sewage treatment, animal processing wastewater treatment, water treatment parameter control, etc., can solve problems such as impact, environmental problems, unsatisfactory treatment effect, etc. Effects of Bad Odor Problems
CN105934412AInactive Publication Date: 2016-09-07HESHAN XINKEDA ENTERPRISE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HESHAN XINKEDA ENTERPRISE CO LTD
Publication Date
2016-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

A treatment process for wastewater from synthetic leather production comprises the following steps of: grating treatment, pH and temperature adjustment, blowing off treatment, air floatation treatment, anaerobic degradation by adding domestic sewage, aerobic degradation, precipitation and MBR treatment. The process ensures the stability of water quality by aerobic biological degradation, so that the later process requirements are reduced to ensure the effluent water quality. The removal rate of dimethylamine after the blowing off treatment reaches 81%, which solves the problem of bad odor of distilled water, and makes the dimethylamine in wastewater recyclable, thereby turning waste into treasure; and the wastewater discharge meets the standards. A treatment system for wastewater from synthetic leather production is also disclosed.
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Description

technical field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a treatment process for synthetic leather production wastewater, and also relates to a treatment system for realizing the treatment process. Background technique

[0002] Polyurethane synthetic leather is a composite material that simulates the structure and performance of natural leather and can be used as a substitute for natural leather. Usually non-woven fabric is used to simulate the mesh layer, and microporous polyurethane coating is used to simulate the grain layer. The front and back of the obtained synthetic leather are very similar to leather, and have a certain degree of air permeability, which is closer to natural leather than ordinary artificial leather. Widely used in making shoes, boots, bags and ball games.

[0003] According to the National Bureau of Statistics, in 2011, there were 495 artificial leather and synthetic leather enterprises...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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