ZHAO Jian-zhong,WANG Xue-hua,WANG Hao,et al.Reconstruction and Analysis of a Printing and Dyeing Wastewater Treatment Project in Zhejiang[J].China Water & Wastewater,2020,36(14):134-137.
Reconstruction and Analysis of a Printing and Dyeing Wastewater Treatment Project in Zhejiang
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
14
Page:
134-137
Column:
Date of publication:
2020-07-17
- Abstract:
- The technological process, parameters, operation cost and effect of a printing and dyeing wastewater treatment project in Zhejiang were introduced. The combined process of physio-chemistry, plug flow biochemical system, sand filtration, and reverse osmosis (RO) was used in the reconstruction project. The average effluent concentrations of COD, chroma and electrical conductivity were 16.75 mg/L, 6.25 times, 116.75 μS/cm respectively, with average influent concentrations of 2 300 mg/L, 337 times, 3 335 μS/cm respectively, which could meet the reuse standard of dyeing and printing process. The recycling rate of wastewater reached over 60% and the treatment cost including electricity, labor, chemicals, sludge disposal and equipment maintenance cost was about 2.552 yuan/m3. It had the characteristics of reliable processing technology, stable operation, easy maintenance and etc., which showed good practical application value.
Last Update:
2020-07-17