title: [Performance of bio-ceramic reactor at low temperature].
abstract: A bio-ceramic reactor for slightly polluted source water from Guanting Reservoir in Beijing was conducted at low temperature. It was shown that the removal rate of CODMn and NH4(+)-N decreased from 20% to 6%, 90% to 65% respectively when the temperature fell from 10 degrees C to 0.5 degree C. The main factor affecting the efficiency of bio-ceramic reactor was the microbial activity which decreased more than the biomass when the temperature dropped. Microbial activity and biomass in the bio-ceramic reactor were in a regular pattern of gradient distribution from the lower to the upper along the direction of raw water flow.
authors.affiliation: Research Center for Environmental Engineering & Management, Shenzhen Graduate School, Tsinghua University, Shenzhen 518057, China.
authors.forename: Junqiang
authors.initials: J
authors.lastname: Sang
authors.forename: Zhansheng
authors.initials: Z
authors.lastname: Wang
mesh_terms: D001673:Biodegradation, Environmental; D018533:Biomass; D019149:Bioreactors / Q000382:microbiology*; D003080:Cold Temperature; D010101:Oxygen Consumption; D013696:Temperature; D018508:Water Purification