title: Continuous removal of aromatic hydrocarbons by an AF reactor under denitrifying conditions.
abstract: Removal of three typical aromatic hydrocarbons, benzene, biphenyl and naphthalene by an anaerobic filter (AF) reactor under continuous mode and denitrifying conditions was studied. Results showed that the AF reactor could degrade these aromatic hydrocarbons effectively under above-mentioned conditions. When influent wastewater contained 900 mg COD/l and about 60 mg (total aromatic hydrocarbons)/l, 90% and 84% removal efficiency could be achieved for them respectively. When COD/NO3 (-)-N ratio (C/N) was in the range 5-30, the removal of benzene was slightly influenced by C/N and it remained stable at about 90%. However, degradation of naphthalene, biphenyl and total COD was greatly influenced by C/N, and highest removal was achieved at C/N = 15, it was 90%, 85% and 82% for COD, naphthalene and biphenyl, respectively. Degradation of these three aromatic hydrocarbons followed the order: benzene > naphthalene > biphenyl.
authors: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University, Beijing, P.R. China, 100875. xchquan@yahoo.com.cn.
authors: Xiangchun
authors: X
authors: Quan
authors: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University, Beijing, P.R. China, 100875.
authors: Wenyan
authors: W
authors: Wang
authors: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University, Beijing, P.R. China, 100875.
authors: Zhifeng
authors: Z
authors: Yang
authors: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University, Beijing, P.R. China, 100875.
authors: Chunye
authors: C
authors: Lin
authors: School of Environment, State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing Normal University, Beijing, P.R. China, 100875.
authors: Mengchang
authors: M
authors: He
keywords: Benzene; Biphenyl; Degradation; Denitrify; Naphthalene