Isolations and Identifications of Two Psychrotrophs and Preliminary Research on Their Applications

作     者：Huifeng Li Jinhui Huang Xushen Zhou Chao Lin Yang Luo 

作者机构：State Key Laboratory of Hydraulic Engineering Simulation and SafetyTianjin University Water Resources Protection BureauWater Resources Commission in Haihe RiverMinistry of Water Resources 

出 版 物：《Meteorological and Environmental Research》 (气象与环境研究（英文版）)

年 卷 期：2013年第4卷第2期

页      面：22-25页

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：Supported by Excellent Talent Support Plan Project in New Century, Ministry of Education,China(NCET-09-0586) Special Project of the Science Research in Public Welfare Industry,Ministry of Water Resources,China (201101018,201201114) Special Item of the National International Science and Technology Cooperation(S2013BGR0244) 

主　　题：Activated sludge Psychrotroph CODer degradation Isolation and identification China 

摘      要：[Objective] The research aimed to initially study degradation effect of the CODc, in sewage by two psychrotrophs. [Method] Two psychrotrophs were isolated from the activated sludge of wastewater treatment plant in Tianjin Konggang Economic Area. CODc, degradation ability of the screened psychrotroph was analyzed in simulated domestic wastewater at 6℃. [Result] K 36 was identified as Comamonas testosterone, and K 38 was identified as Serratia fonticola. CODcr degradation abilities of the two strains were different in test. COOcr removal rates of the K 36 and K 38 respectively reached up to 23% and 53%. The measured result of growth rate suggested that two psychrotrophs both had high activities at low temperature. [ Conclusion] K 36 and K 38 had potentials in wastewater treatment application.