[Relation analysis of phosphorus removal and BOD5 loading using PHB monitoring in A2/O process].
In a pilot-scale anaerobic-anoxic-oxic experimental system for municipal wastewater treatment, PHB consumption in an oxic tank and PHB production in an anaerobic tank had been monitored overtime, and relations among PHB consumption/production, phosphorus removal/release and BOD5 loading had been analyzed. The results indicated that the consumption of PHB was positively related with phosphorus removal, and about 140 mg PHB consumption could result in 1 mg P removal. In the anaerobic tank, about 1.17 mg P release could result in 100 mg PHB production. The PHB production at the loading of 0.176 g/(g x d) was 4 mg/g MLSS less than that at 0.413 g/(g x d). No significant relevance was observed between PHB and BOD5 removal. The PHB of microorganism synthesizes was increased with the increase of temperature. Compared with the lowest temperature (17.1 degrees C), 20% of the total PHB content was increased at the maximum temperature (33.2 degrees C) in active sludge.
Gao
Shang
S
School of Resource and Environmental Sciences, East China Normal University, Shanghai 200062, China. Lofty0210033@163.com
Dai
Xing-Chun
XC
Chen
Xi
X
Gao
Yan
Y
Zhu
Yong
Y
Huang
Yan
Y
Huang
Min-Sheng
MS
Wang
Guo-Hua
GH
D001420:Bacteria, Aerobic / Q000502:physiology; D019149:Bioreactors / Q000382:microbiology; D006885:Hydroxybutyrates / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010758:Phosphorus / Q000032:analysis / Q000302:isolation & purification*; D010865:Pilot Projects; D011091:Polyesters / Q000378:metabolism*; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*; D000094122:Polyhydroxybutyrates
D006885:Hydroxybutyrates; D010100:Oxygen; D010758:Phosphorus; D011091:Polyesters; D014874:Water Pollutants, Chemical; C003182:poly-beta-hydroxybutyrate; D000094122:Polyhydroxybutyrates