Dye wastewater mainly comes from the production of dyes and dye intermediates industry.
染料废水主要来自染料及染料中间体生产行业。
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The hydrazobenzene compounds are important materials of fine chemistry and intermediates of organic synthesis, widely used in medicines and dyes industry.
Dyes and their intermediates have a wide range variety, with a high concentration, color depth, organic matter complex composition, toxic, and poor characteristics of bio-degradable.