螯台球菌TAD1在高温曝气生物滤池中的异养硝化-反硝化性能  

Heterotrophic nitrification-denitrification of Chelatococcus daeguensis TAD1 in an aerating biofilter at high temperature

作　　者：杨云龙[1] 黄少斌[1,2] 许辅乾[1,3] 黄慧星[1] 张永清[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广州510006 [2]污染控制与生态修复广东省普通高等学校重点实验室,广州510006 [3]工业聚集区污染控制与生态修复教育部重点实验室,广州510006

出　　处：《环境化学》2012年第5期610-614,共5页Environmental Chemistry

基　　金：广东省教育部产学研结合项目(2011B090400284)专项资金资助;广州市番禺区科技和信息化局项目(2011-专02-4-23);广东省科技厅项目(2011B010100029);广东省经济和信息化委员会-粤港关键领域重点突破招标项目(20100106-3)资助

摘　　要：初步实验证实螯台球菌(Chelatococcus daeguensis)TAD1在高温下具有异养硝化-反硝化的能力,为验证其可应用性,采用曝气生物滤池工艺,研究了TAD1在温度为50℃的异养硝化-反硝化性能.结果表明,TAD1在曝气生物滤池中可同时进行好氧反硝化和异养硝化.当分别以硝氮、氨氮及硝氮和氨氮为氮源时,12 h的氮去除率均达到100%,氮的去除能力分别为12.67 mg.L-.1h-1、3.62 mg.L-.1h-1及16.53 mg.L-.1h-1.虽然在脱氮过程中,亚硝盐在6 h迅速积累到76 mg.L-1(硝氮为氮源)和52.6 mg.L-1(硝氮和氨氮为氮源),但在随后的几个小时内又快速降低至0(检测限之外).因而,TAD1具有应用于高温生物脱氮工艺的能力和优势.Previous studies demonstrated that Chelatococcus daeguensis TAD1 exhibited an ability of heterotrophic nitrification-denitrification at high temperature.To verify its applicability,the performance for heterotrophic nitrification-denitrification at 50 ℃ was studied using an aerating biofilter process.Results showed that TAD1 simultaneously aerobically denitrified and heterotrophically nitrified in the biofilter.When using NO-3-N,NH＋4-N and NO-3-N plus NH＋4-N respectively as nitrogen source,the corresponding nitrogen removal capacity was 12.67 mg·L-1·h-1,3.62 mg·L-1·h-1 and 16.53 mg·L-1·h-1,and all the nitrogen removal rates reached 100% after 12 h.Although NO-2-N accumulated quickly to 76 mg·L-1（NO-3-N as nitrogen source） and 52.6 mg·L-1（NO-3-N plus NH＋4-N as nitrogen source） during the denitrification,both of them decreased to zero（not detected） in the following hours.Thus,TAD1 possesses ability and advantage in its application to the biological denitrification process at high temperature.

关 键 词：螯台球菌TAD1 高温 生物滤池 好氧脱氮 

分 类 号：X703[环境科学与工程—环境工程]