TY - JOUR
T1 - Synthetic white spirit wastewater treatment and biomass recovery by photosynthetic bacteria
T2 - Feasibility and process influence factors
AU - Wang, Hangyao
AU - Zhang, Guangming
AU - Peng, Meng
AU - Zhou, Qin
AU - Li, Jie
AU - Xu, Hongzhang
AU - Meng, Fan
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2016/9/1
Y1 - 2016/9/1
N2 - Photosynthetic bacteria (PSB) can assist with wastewater purification and useful biomass recovery without excess sludge. The feasibility of using PSB to treat white spirit wastewater was studied. The effects of the crucial process factors were also tested. The results demonstrated that using PSB to treat white spirit wastewater was feasible, and biomass production was achieved. PSB exhibited the ability to acclimatize to white spirit wastewater: they were tolerant of a high COD of 9100–25,600 mg l−1 and an ethanol concentration of 0.5–2.0% (v/v). In addition, PSB were able to adapt to a pH of 5.0–8.0 and adjust the effluent pH. These characteristics were favorable for white spirit wastewater treatment. In performance improving study, dilution (reflux) was used as a strategy to improve the degradation effectiveness. Refluxing with a ratio of 300% was the optimal method. A similar treatment effect as an anaerobic process was achieved: the COD removal reached 76.02%, and valuable biomass instead of excess sludge was simultaneously obtained.
AB - Photosynthetic bacteria (PSB) can assist with wastewater purification and useful biomass recovery without excess sludge. The feasibility of using PSB to treat white spirit wastewater was studied. The effects of the crucial process factors were also tested. The results demonstrated that using PSB to treat white spirit wastewater was feasible, and biomass production was achieved. PSB exhibited the ability to acclimatize to white spirit wastewater: they were tolerant of a high COD of 9100–25,600 mg l−1 and an ethanol concentration of 0.5–2.0% (v/v). In addition, PSB were able to adapt to a pH of 5.0–8.0 and adjust the effluent pH. These characteristics were favorable for white spirit wastewater treatment. In performance improving study, dilution (reflux) was used as a strategy to improve the degradation effectiveness. Refluxing with a ratio of 300% was the optimal method. A similar treatment effect as an anaerobic process was achieved: the COD removal reached 76.02%, and valuable biomass instead of excess sludge was simultaneously obtained.
KW - Biomass recovery
KW - Photosynthetic bacteria
KW - Process influence factors
KW - Reflux
KW - White spirit wastewater
UR - http://www.scopus.com/inward/record.url?scp=84953790408&partnerID=8YFLogxK
U2 - 10.1016/j.ibiod.2016.01.001
DO - 10.1016/j.ibiod.2016.01.001
M3 - Article
SN - 0964-8305
VL - 113
SP - 134
EP - 138
JO - International Biodeterioration and Biodegradation
JF - International Biodeterioration and Biodegradation
ER -