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Viscose fiber environmental protection status and new technique application
¡ª¡ªYou Zhihua, China Hi-tech (Jiangxi) Textile Design Institute Co., Ltd,

2018-05-23 11:52:15
You Zhihua, China Hi-tech (Jiangxi) Textile Design Institute Co., Ltd, presented his report of Viscose fiber environmental protection status and new technique application 
Firstly, Mr. You introduced importance of environmental protection to viscose fiber, environmental protection trend and sewage discharge standard. 

Secondly, he talked about viscose wastewater, which included acidic waste-water, alkaline waste-water, high zinc waste-water and domestic sewage. For high acidic zinc-bearing waste water, by using the technology of film concentration + evaporation to process sulfuric acid, sodium sulfate and zinc sulphate as useful ingredients. High-zinc alkaline wastewater is finally treated into industrial soft water, and Zn ions are recycled. 

Thirdly, he introduced the new technology to waste water treatment-Nanofiltration (NF). Using imported NF membrane to separate lye and hemicellulose effectively achieves recycle of lye and hemicellulose and improves the benefit of enterprises and environmental protection. 

Finally, he made a brief summary on this report, pointed out that with the constant innovation of process technology and the upgrading of equipment levels, more new technologies and new devices will be developed and applied to the wastewater treatment of viscose production. 

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