Abstract：
:Complex dissolved organic matter (DOM) present in landfill leachate provides reliable media for adsorption of highly hydrophobic contaminants, such as Di 2-ethyl hexyl phthalate (DEHP). In this research, the feasibility of submerged membrane bioreactor (SMBR) for treatment of landfill leachate (LFL) was determined. Later, the operating conditions were optimized for removal of DEHP, COD, NH4(+) and PO4(3-), and finally the effect of bioavailability was examined by introduction of different concentrations of humic acid into the influent. The result revealed that presence of complex agglomerated organic compounds increased the removal efficiency of DEHP and COD, even though DEHP biodegradation rate in sludge dramatically decreased (from 58.8% to 12.8%). MBR retention of different metals in the absence and in the presence of recalcitrant DOM was also studied. Like DEHP, ternary interaction between metals, DOM, and sludge play a pivotal role in their removal efficiency and their concentration in sludge.
journal_name
Chemospherejournal_title
Chemosphereauthors
Zolfaghari M,Droguia P,Brar SK,Buelna G,Dubé Rdoi
10.1016/j.chemosphere.2016.07.021subject
Has Abstractpub_date
2016-10-01 00:00:00pages
390-399eissn
0045-6535issn
1879-1298pii
S0045-6535(16)30905-5journal_volume
161pub_type
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