文档介绍：Adsorption of Ammonium to Biologically Aerated
Filter Backwashed Sludge
HU Hongbo(1) HAN Hongjun(1) JIE Yao(2)
(1)State Key Laboratory of Urban Water Resources and (2)National Engineering Research Center of Urban Water
Environment, Harbin Institute of Technology Resources, School of Municipal and Environmental
Harbin150090, P. R. China Engineering, Harbin Institute of Technology
Harbin 150090, P. R. China
Abstract—Ammonium adsorption characteristics of the in soil, sediment systems and even active sludge have been
denitrifying filter and the biologically aerated filter backwashed published recently, but the study of adsorption of ammonium in
sludge and influence factors such as sludge concentration, sludge biofilm is infrequent. And BAF is a process what produce a
activity and effect of chemical coagulants were investigated. large of biofilms and the biofilms are produced intensively in
Ammonium was found to be adsorbed to both kinds of backwash. The objective of this paper is to investigate the
backwashed sludge. The backwashed sludge in biologically adsorption of ammonium of the backwashed sludge utilized in
aerated filter adsorbed more ammonium than that in denitrifying domestic wastewater in order to carry out a novel technology
filter in the same concentration of the sludge. The adsorbed for backwashed sludge disposal and utilizat