Treating sewage using coimmobilized system of Chlorella pyrenoidosa and activated sludge.
Chlorella pyrenoidosa was coimmobilized with activated sludge to produce algae-bacteria beads for sewage treatment. Hydrolysis/acidogenesis pretreatment could improve the symbiotic microenvironment of coimmobilized Chlorella pyrenoidosa and activated sludge, and as a result, promote the removal of nutrients (COD(cr), inorganic nitrogen and inorganic phosphorus) in the sewage. A photo-bioreactor combining hydrolysis/acidogenesis pretreatment and coimmobilized technique was designed to treat sewage continuously. The results show that, the removal efficiencies of COD(cr), NH4(+)-N and TP reached steady state after 4-days of experiment. The removal efficiencies of COD(cr), NH4(+)-N and TP were 59.6%, 59.0% and 60.3% respectively.
Xiong
Z H
ZH
Department of Environmental and Municipal Engineering, Tianjin Institute of Urban Construction, Tianjin, China 300384.
Ma
H J
HJ
Huang
G L
GL
Pan
H
H
Sun
C Z
CZ
D001419:Bacteria / Q000378:metabolism*; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D002708:Chlorella / Q000378:metabolism* / Q000382:microbiology; D017753:Ecosystem; D010777:Photochemistry / Q000295:instrumentation / Q000379:methods; D012722:Sewage / Q000737:chemistry / Q000382:microbiology*; D013559:Symbiosis; D018505:Waste Management / Q000295:instrumentation / Q000379:methods
D012722:Sewage