ZHANG Jing-yu,YANG Yuan,HU Yi-song,et al.Optimization of Granular Activated Carbon and Dynamic Membrane Bioreactor Hybrid Process and Its Wastewater Treatment Efficiency[J].China Water & Wastewater,2020,36(11):9-14.
Optimization of Granular Activated Carbon and Dynamic Membrane Bioreactor Hybrid Process and Its Wastewater Treatment Efficiency
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
11
Page:
9-14
Column:
Date of publication:
2020-06-05
- Keywords:
- font-size: 10pt; ">dynamic membrane bioreactor; granular activated carbon; wastewater; filtration performance; sludge property
- Abstract:
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Based on the dynamic membrane bioreactor (DMBR), batch experiments were conducted to study the effect of pore size of supporting material (200 mesh,300 mesh and 500 mesh) and dosage (0.5 g/L, 1 g/L, 2 g/L and 3 g/L) of granular activated carbon (GAC) on operation of GAC/DMBR process, and long term experiments were further conducted to verify the wastewater treatment efficiency based on the optimization results. The batch experiments showed that there was no significant difference in effluent turbidity when nylon mesh with different pore size was used.However, a higher stable flux of 65 L/(m2·h) was obtained when nylon mesh with pore size of 200 mesh was used.The treatment efficiency and filtration performance were the best when GAC dosage was 2 g/L. Compared with the control experiment (DMBR), the effluent flux of GAC/DMBR increased significantly during the longterm experiments,and the effluent turbidity remained around 1 NTU. In addition, GAC/DMBR had a better treatment performance with lower soluble extracellular polymeric substances (SEPS) content and improved sludge property.
Last Update:
2020-06-01