title: [Feasibility of treatment of micro-pollutant water polluted by nitrobenzene with IBAC-process].
abstract: The performance and feasibility of immobilization biological activated carbon (IBAC) were investigated to treat micro-pollutant water containing nitrobenzene. IBAC has been developed on the granular activated carbon by immobilization of selected and acclimated species of engineering bacteria to treat the micro-pollutant water containing nitrobenzene. The IBAC removal efficiencies for nitrobenzene, permanganate index, turbidity, UV, ammonia and nitrite were compared with granular activated carbon (GAC) process. Biological toxicity of influent and effluent of filter were determined. Amount of bacteria in carbon was measured when carbon filter was inoculated and circulated stably. The results showed that compared with GAC, it took short time for IABC to startup and recover to normal after impact burden. In addition, IBAC was more effective to treat micro-pollutants. In order to ensure security of drinking water, the influent nitrobenzene should be controlled below 26 microg/L. Effluent biological toxicity treated with IBAC was less than that with GAC. The performance of IBAC was much better than that of GAC. Amount of bacteria in both activated carbon filter increased first and then declined from inlet to outlet.
authors: School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China. hitwangchen@hotmail.com
authors: Chen
authors: C
authors: Wang
authors: Fang
authors: F
authors: Ma
authors: Dan
authors: D
authors: Shan
authors: Ji-xian
authors: JX
authors: Yang
authors: Yuan-dong
authors: YD
authors: Lan
authors: Guo-wei
authors: GW
authors: Gao
mesh_terms: D000327:Adsorption; D019149:Bioreactors / Q000382:microbiology; D002606:Charcoal / Q000737:chemistry*; D005240:Feasibility Studies; D005818:Genetic Engineering; D009576:Nitrobacter / Q000235:genetics / Q000378:metabolism; D009578:Nitrobenzenes / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
chemical_list: D009578:Nitrobenzenes; D014874:Water Pollutants, Chemical; D002606:Charcoal; C036077:nitrobenzene