Abstract:
:This study focuses on the effects of organic loading rate (OLR) on the removal of N,N-Dimethylformamide(DMF), m-Cresol (MC) and isopropyl alcohol (IPA) by a pilot-scale anaerobic membrane bioreactor (AnMBR) for treating chemical synthesis-based antibiotic solvent wastewater at period of improved influent COD concentration with decreased HRT. The whole process was divided into five stages in terms of the variation of OLR ranging from 3.9 to 12.7 kg COD/(m3·d). During 249 days of operating time, the average DMF, MC, IPA removal efficiency were 96.9%,98.2% and 96.4%, respectively. Cake layer was accumulated on the membrane surface acted as a dynamic secondary biofilm which lead to the increase of physical removal rate. In addition, mathematical statistical models was built on the linear regression techniques for exploring the inner relationship between EPS and the performance of the AnMBR.
journal_name
Chemospherejournal_title
Chemosphereauthors
Chen Z,Su H,Hu D,Jia F,Li Z,Cui Y,Ran C,Wang X,Xu J,Xiao T,Li X,Wang Hdoi
10.1016/j.chemosphere.2018.01.091subject
Has Abstractpub_date
2018-05-01 00:00:00pages
49-58eissn
0045-6535issn
1879-1298pii
S0045-6535(18)30108-5journal_volume
198pub_type
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