XU Jiang-hong,WANG Hao-ya,SUN Xu-hai,et al.Research on the Application of Key Technology for Zero Discharge of Paper-making Reconstituted Tobacco Production Wastewater[J].China Water & Wastewater,2020,36(18 18):113-117.
Research on the Application of Key Technology for Zero Discharge of Paper-making Reconstituted Tobacco Production Wastewater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
18 18
Page:
113-117
Column:
Date of publication:
2020-09-17
- Abstract:
- In order to achieve the zero discharge of paper-making reconstituted tobacco production wastewater, a wastewater treatment and reuse system was developed based on combined MBR and RO treatment, as well as oxidation, adsorption and flocculation, UF/NF desalination and high salt concentration technology. The water quality in wastewater treatment sections, discharge compliance, and operation costs were analyzed. The operation results showed that the quality of MBR and RO effluent (reused water) was stable and could be reused in the production workshop, the effluent SS, COD and pH met the first level A criteria of Integrated Wastewater Discharge Standard (GB 8978-1996),the quality of reclaimed water for production met Sanitary Requirements for Tobacco Industrial Water(YC 444-2012), most reused water quality indexes of RO concentrated water met Standards for Drinking Water Quality (GB 5749—2006). The treatment cost after technical transformation is 6.42 yuan/m3, 37.2% higher than that before. However, through the reuse of purified water, the amount of clean water can be reduced. Compared with that before the technical transformation, the total daily wastewater treatment capacity reached 2 933 m3/d with an increase of 11.1%, and the daily discharge was 880 m3/d with an decrease of 66.7%. The reuse water reached 2 120.6 m3/d and the reuse ratio was 72.3%. 60 t/d of sludge was produced with an increase rate of 15.4%.
Last Update:
2020-09-17