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Pollution Control Needs Urgent Efforts.

2011/12/17 8:57:00 15

As we all know, in the production process of textile industry, water pollution will be produced in all aspects such as yarn sizing, fabric desizing, fabric dyeing, water washing and finishing.

Especially in the printing and dyeing industry, the waste water produced before and after finishing process contains oil, dyes, slurry and so on.

fibre

Impurities such as industrial sewage, compared with civilian sewage, the difficulty of its governance, and the amount of investment that enterprises have invested is unknown to those outside the industry.

Over the years, the textile industry has invested a lot of manpower and material resources in the treatment of printing and dyeing wastewater. The research results of sewage treatment have been continuously applied to industrial production, and remarkable results have been achieved.

At present, the COD (chemical oxygen demand), BOD (biochemical oxygen demand) and pH value in the textile industry are

Comprehensiveness

Indicators also basically meet or exceed national standards. The textile industry has made due contributions to the national green, low-carbon and environmental protection undertakings, and has fulfilled its social responsibilities.

But the blacklist of environmental pollution will often appear in the name of textile and garment enterprises.

Industry experts pointed out that during the "12th Five-Year" period, the textile industry

science and technology

One of the key tasks of progress is to increase the efficiency of printing and dyeing process, and develop and popularize the technology of printing and dyeing without water, printing and dyeing with less water and functional finishing.

It focuses on developing high and new technologies of water less and anhydrous printing and dyeing, providing technical support for the industry to achieve cleaner production and improve sustainable development.

In recent years, new technologies and new materials have been widely used in pollution control.

With the implementation of the textile "12th Five-Year plan", more new technologies will be further applied to pollution control.

For example, the cold pfer printing technology developed by Shanghai Changsheng textile products Co., Ltd., because of less water, can effectively reduce pollution.

Chen Guiwu, vice chairman of the company, told reporters that the technology and equipment have been applied in some enterprises in Jiangsu and Zhejiang Province and are expected to expand the scope of use in the industry.

The reporter has learned that the environmentally friendly waterless printing technology developed by Zhejiang Shaoxing County Niu Niu Shui printing and Dyeing Technology Co., Ltd. has been able to treat the semi bleached textiles with dip, spray, brush and other processes, and pre conditioning and drying with the new regulator. The whole production process does not need to be washed. A production line can reduce the discharge of sewage 200 tons per day.

Using advanced materials and technology to minimize pollution and recycle water is a feasible solution for the textile industry.

Wuhan Fangyuan environment Polytron Technologies Inc and Wuhan Textile University, developed by the two prize of national science and technology inventions, "microwave electrodeless ultraviolet photocatalytic oxidation" technology, has conquered many problems of photocatalytic oxidation technology, and achieved rapid dechroming and reuse of high temperature dyeing wastewater.

Waste water goes in, water comes out, new technologies are used, and new materials are added to make the water of rivers, lakes and seas more clear. It has become the historical responsibility of the textile and garment industry.

The textile industry "12th Five-Year" outline of scientific and technological progress provides guidance for green environmental technology and pollutant control technology.

There are 6 high and new printing and dyeing technologies. The pre spinning parts include biological enzyme refining technology, cotton fabric low-temperature bleaching key technology, tea saponin degumming and bleaching efficient short flow technology, cold pretreatment technology for knitted fabric, and so on. The less water and no water printing and dyeing technology in the spinning part includes: reactive dyestuff wet short steaming dyeing, disperse dye microcapsule without auxiliaries without water washing technology, new pfer printing technology, ultrasonic finishing technology and so on, these new technologies have become the sustainable development direction of printing and dyeing industry.

However, at present, the application scope of some new technologies is low, the degree of industrialization is low, and the cost of enterprise promotion is high. The practical problem has become the bottleneck restricting the development of printing and dyeing industry.