Effect of a water extract of Moringa oleifera seeds on the hydrolytic microbial species diversity of a UASB reactor treating domestic wastewater.
The effect of a continuous supply of a water extract of Moringa oleifera seeds (WEMOS) on the hydrolytic microbial population of biomass grown in mesophilic upflow anaerobic sludge blanket reactors treating domestic wastewater was investigated. The WEMOS-treated sludge had seemingly a wider diversity, with enterobacter and klebsiella as dominant hydrolytic bacteria, compared with the control sludge. Additional tests indicated that various hydrolytic bacteria could degrade WEMOS. It appeared that a continuous supply of WEMOS to an anaerobic digester, treating domestic wastewater, increased the diversity of hydrolytic bacteria and therefore enhanced the biological start-up of the reactor.
Kalogo
Y
Y
Centre for Environmental Sanitation, Laboratory of Microbial Ecology and Technology (LabMET), Ghent University, Ghent and Fondation Universitaire Luxembourgeoise, Belgium.
Rosillon
F
F
Hammes
F
F
Verstraete
W
W
D001419:Bacteria / Q000145:classification / Q000254:growth & development* / Q000302:isolation & purification / Q000378:metabolism; D019149:Bioreactors; D015169:Colony Count, Microbial; D003470:Culture Media; D006868:Hydrolysis; D010936:Plant Extracts / Q000494:pharmacology*; D010946:Plants, Medicinal; D019685:Rosales; D012639:Seeds; D012722:Sewage / Q000382:microbiology; D014865:Waste Disposal, Fluid
D003470:Culture Media; D010936:Plant Extracts; D012722:Sewage