LOUHong-hai,LOUChao-gang,CHENWei,et al.Application of Three-dimensional Intensive Combined Technology in the Treatment and Reuse of Printing and Dyeing Wastewater[J].China Water & Wastewater,2024,40(2):115-119.
Application of Three-dimensional Intensive Combined Technology in the Treatment and Reuse of Printing and Dyeing Wastewater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第2期
Page:
115-119
Column:
Date of publication:
2024-01-17
- Keywords:
- printing and dyeing wastewater; land saving technology; three-dimensional intensive form; multistage AO; reuse
- Abstract:
- Based on the characteristics of printing and dyeing wastewater quality, the concept of vertical functional strengthening and land saving technology is introduced, the innovative use of a three-dimensional intensive combined process of classification and quality pre-treatment, multistage AO, and double membrane, effectively solves the problem of land shortage for environmental protection treatment facilities. The results show that the combined process has the advantages of high efficiency and stability, low operating costs and high reuse rate. The average removal rates of COD, BOD5, TN, NH3-N and chroma are 92%, 97%, 80%, 94% and 85%, respectively. The effluent indicators stably meet the indirect discharge criteria in Discharge Standards of Water Pollutants for Dyeing and Finishing of Textile Industry (GB 4287-2012), the quality of the reused water meets the water quality requirements of production process water in Technical Specification for Dyeing and Finishing Wastewater Treatment of Textile Industry (HJ 471-2020), and the reuse rate reaches 62.5%.
Last Update:
2024-01-17