Method for regenerating and recycling laundry waste water

A waste water and rinsing water technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, light water/sewage treatment, etc., can solve the problems of complex waste water composition, low modernization level, and great difficulty, and achieve the goal of avoiding oxygen Drift hole and damage, strong targeted treatment, and reduced treatment difficulty
CN102303933AInactive Publication Date: 2012-01-04BEIJING INST OF CLOTHING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INST OF CLOTHING TECH
Publication Date
2012-01-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for regenerating and recycling laundry waste water, which is mainly used for regenerating and recycling laundry waste water discharged from intermittent industrial laundry machines which run independently in the laundry process of the laundry and dyeing industry. The aim of the invention is to treat laundry waste water by combining direct reuse of the laundry waste water or regeneration and recycling of the laundry water. The method comprises process treatment and front-end treatment. The process treatment is to direct reuse waste water which is laundry water from a laundry process flow in a countercurrent rinsing manner. An operation system in which the rinsing water flows continuously in a semi-intermittent manner and in which the laundry moves in an intermittent manner is designed for the intermittent industrial laundry machines which run independently, so as to realize the water use flow of the laundry water in countercurrent rinsing, and reduce volume of waste water in the rinsing phase; and under the conventional laundry process conditions, 50 to 70 percent of fresh water can be saved. The front-end treatment is to collect and treat waste water from the prewashing and waste water from the main washing in the production of laundry machines independently and treat the waste water by means of flocculation, centrifugal separation, filtration and the like, wherein the treated water is used in prewashing, main washing and rinsing and the reuse rate is 80 percent. The laundry waste water regenerating and recycling system constructed by combining process treatment and front-end treatment techniques comprehensively reduces consumption of fresh water by over 80 percent.
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Description

technical field

[0001] The invention relates to a method for regeneration and recycling of laundry wastewater, which can be mainly used for regeneration and recycling of laundry wastewater discharged from intermittent industrial washing machines operating independently in the laundry industry. Background technique

[0002] my country is one of the 12 countries and regions that suffer from severe water shortages. According to statistics in 2008, the total amount of water resources in my country is 2,743.43 billion cubic meters, and the per capita water resources are 2,071.1 cubic meters, which is only 1 / 4 of the world's average level. , ranked 110th, with a total national water supply of 591.0 billion cubic meters. At the end of the 20th century, more than 400 of the more than 600 cities in the country suffered from insufficient water supply. The national water shortage reached 40 billion cubic meters, and nearly two-thirds of the cities suffered from water shortage to varying...

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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