三相生物流化床处理含环己基甲酸废水  

Treatment of wastewater containing cyclohexane carboxylic acid by the three-phase biological fluidized bed process

作　　者：王春花[1] 石水安 林文君[1] 

机构地区：[1]惠州学院化学工程系,广东惠州516007

出　　处：《工业水处理》2015年第11期41-44,共4页Industrial Water Treatment

基　　金：广东省科技计划项目(2011B031000022);惠州市科技计划项目(2011B010003001);广东省高等学校优秀青年教师培养计划(HZXY201401)

摘　　要：采用内循环三相流化床工艺处理含环己基甲酸废水,以自行研制的改性聚氨酯为载体,研究了各因素对环己基甲酸降解过程的影响。结果表明,进水中120 mg/L环己基甲酸对生物流化床中的微生物有明显的毒害作用,经过2周左右的驯化,毒害可基本消除。在进水COD为1 200 mg/L,反应器内溶解氧控制在3 mg/L,容积负荷<3.14 kg/(m3·d)时,出水COD可稳定达到《污水综合排放标准》(GB 8978—1996)规定的二级排放标准。The wastewater containing cyclohexane carboxylic acid has been treated by the three-phase biological flui- dized bed process,using the self-made and modified polyurethane as carrier. The influences of the factors on the degradation course of cyclohexane carboxylic acid are studied. The results show that 120 mg/L of cyclohexane car- boxylic acid in the influent has obvious tonic effect on the micro-organisms in the biochemical fluidized bed. The eff- ect could basically be eliminated after acclimated for about two weeks. When the influent COD is 1 200 mg/L, the dissolved oxygen in the reactor controlled at 3 mg/L,and volume load〈3.14 kg/（m^3 .d）,the effluent can steadily reach the second level requirements specified in the Integrated Wastewater Discharge Standard （GB 8978-1996）.

关 键 词：环己基甲酸废水 三相生物流化床 生物降解 

分 类 号：X703.1[环境科学与工程—环境工程]