Performance of a Coagulant-Membrane Bioreactor for the Removal of Dissolved Organic Matter and Phosphorus

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Bo-Kyung Choi²  Sung Kyu Maeng¹  Kyung-Guen Song²  Kyu-Hong Ahn²  Jung-Yeol Lee² 

[1] Department of Civil and Environmental Engineering, Sejong University;Center for Water Resource Cycle, Korea Institute of Science and Technology

关键词: Coagulation;    Membrane Bio-reactor;    Non-Woven Fabric Filter;    Phosphorus;    Soluble Microbial Products;   

DOI  :  10.1252/jcej.12we134

来源: Maruzen Company Ltd

【 摘 要 】

References(34)Cited-By(2)We report an investigation into the effectiveness of a hybrid membrane bioreactor (MBR) composed of an anoxic, non-woven fabric filter (NWFF)-aerobic reactor and an integrative microfilter (MF) with simultaneous dosing of a coagulant. Preliminary jar tests were conducted with four different additives (aluminum sulfate, FeCl3, FeSO4, and PACl) to observe the effects induced by changes in pH, alkalinity, soluble chemical oxygen demand (SCOD), and PO43-P of the permeate on the NWFF-aerobic reactor. The use of aluminum sulfate improved performance as it related to SCOD and phosphorus removal in the amounts of 2.1 mol aluminum sulfate/mol PO43-P. In the hybrid MBR, the average total phosphorus removal efficiency of the entire system was as high as 79% with continuous addition of 100 mg/L aluminum sulfate. Three-dimensional fluorescence excitation-emission matrix (F-EEM) spectroscopy of the liquid samples from the MBR indicated the presence of humic-like organic matter, which was regarded as primary aromatic organics.

【 授权许可】

Unknown