Study on the performance of mass transfer on the bio-reactor process for wastewater treatment

摘要：

The influence of mass transfer on randomly packed bed bio-reactor process for wastewater treatment were explored through the comparison between a hydraulic rotated media (SCMT) vs. a traditional packing material. Experimental results showed that the SCMT packed bed increased the oxygen transfer capacity of the bioreactor significantly. With its better mass transfer characteristics, the SCMT media created higher dissolved oxygen environmental conditions in every spot of bio-reactor when compared with the traditional polypropylene ladder-circle packing, thus less resident time and energy were needed for equivalent removal efficiency. The secondary treatment standards 《Municipal Wastewater Treatment Plant discharge Standard (GB18918-2002)》 can be reached by the SCMT packed bed under a condition of HRT= 1.0h and gas to liquid rate ratio of 4 ∶1.

关键词： Mass transfer Wastewater treatment Bio-film reactor

作者: CHEN Lei WANG Yi ZHANG Lulu

作者单位: School of Municipal and Environmental Engineering, Jilin Institute of Architectural and Civil Engine Northeast normal university, Changchun 130024,China

会议类型: 国际会议

会议名称: The 6th International Symposium of Asia Institute of Urban Environment(亚洲城市环境学会第六届国际会议)

会议地点: 长春

会议语种:英文

页码: 473-476

在线出版日期: 2009-09-20（万方平台首次上网日期，不代表论文的发表时间）