GUOKui-xiang,YUJun.Application of Active Coke Adsorption Filtration Technology in Upgrading Papermaking Wastewater Treatment[J].China Water & Wastewater,2022,38(22):111-115.
Application of Active Coke Adsorption Filtration Technology in Upgrading Papermaking Wastewater Treatment
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第22期
Page:
111-115
Column:
Date of publication:
2022-11-17
- Abstract:
- The design effluent quality of a papermaking wastewater treatment project with design capacity of 2×104 m3/d in Zhejiang, needs to be upgraded from level Ⅱ criteria to first level A criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). Through technical and economic comparison, activated coke continuous adsorption (ACCA) filtration process is selected as the main process of upgrading and transformation due to its more comprehensive advantages among several processes such as ozone advanced oxidation, Fenton advanced oxidation and ACCA. The designed two-stage ACCA system is composed of 26 reactors with a diameter of 3 m for each stage, and the adsorption filtered water is connected to the current disinfection tank. During operation, about 4.50 t/d of new coke is added, and the corresponding amount of waste coke is discharged. The active coke filter material needs to be washed once a day. The ACCA system effluent during coke turning process and within 30 minutes after its completion are connected to a designed sand filter and discharged after filtration. Through operation verification, ACCA process can achieve stable and up to standard treatment of papermaking wastewater, and the problems of filter bed hardening and coke containing wastewater drainage pipe blockage are solved.
Last Update:
2022-11-17