ANAMMOX生物滤池深度处理干法腈纶废水的性能与可行性  

Performance and Feasibility of ANAMMOX Bio-filter Process for Advanced Treatment of Dry-spun Acrylic Fiber Wastewater

作　　者：徐浩[1,2,3] 田智勇[1,2] 宋永会[1,2] 张立成[3] 孙晨[1,2] 

机构地区：[1]中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012 [2]中国环境科学研究院城市水环境科技创新基地,北京100012 [3]沈阳建筑大学市政与环境工程学院,辽宁沈阳110168

出　　处：《环境工程技术学报》2013年第4期286-292,共7页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2013ZX07202-010);国际科技合作计划项目(2010DFB90590)

摘　　要：针对石化干法腈纶厂出水氨氮浓度高、可生化性差、无法达标的问题,以石化干法腈纶厂三沉池出水作试验用水,研究厌氧氨氧化(ANAMMOX)生物滤池工艺深度处理干法腈纶废水的可行性与脱氮性能。结果表明,经过130d驯化,ANAMMOX生物滤池对干法腈纶厂出水中氨氮具有较强的去除能力,出水NH+4-N浓度由184.1～205.3mg/L降到23.4～30.3mg/L,去除率达83.5%;外加NO-2-N去除率达93.6%以上,NH+4-N和NO-2-N去除摩尔比接近1∶1(理论值为1∶1.32),TN去除负荷达2.36～4.80kg/(m3·d);但出水TN浓度仍高达165.9～180.7mg/L,并主要以难降解含氮有机物的形式存在。ANAMMOX生物滤池对出水难降解的CODCr具有进一步的去除能力,去除负荷可达2.39～2.56kg/(m3·d),出水CODCr由487.9～532.1mg/L降至188.6～212.3mg/L,处理后出水可满足GB8978—1996《污水综合排放标准》中石化工业所要求的二级排放标准。Aiming at the high ammonia-nitrogen concentration, low biodegradab dry-spun acrylic fiber wastewater, the effluent of third-sedimentation tank was ility and non-compliance issues of taken as experimental substrate to research the feasibility and performance of ANAMMOX bio-filter process for advanced treatment of dry-spun acrylic fiber wastewater. The results indicated that the ANAMMOX bio-fiher had a good denitrification ability of dry-spun acrylic fiber wastewater after 130 days domestication, the effluent ammonia-nitrogen concentration decreased from 184.1-205.3 mg/L to 23.4-30.34 mg/L, and the removal efficiency of ammonia-nitrogen reached 83.5%. The removal efficiency of NO2^- -N reached up to 93.6%, the removal of NH4^＋ -N and NO2^- -N efficiencies were close to 1：1 （theoretical value 1：1.32）, and the total nitrogen removal load reached 2.36-4.80 kg/（v）. However, the effluent concentration of total nitrogen was still as high as 165.9-180.7 mg/L, mainly exiting in the form of refractory organics. In addition, the removal of CODcr with ANAMMOX bio-filter process was confirmed, the removal load reached up to 2.39-2.56 kg/（ m^3·d）, the effluent CODcr decreased from 487.9-532. 1 mg/L to 188.6-212.3 mg/L, which could meet the requirement of Class Ⅱ standard of National Discharge Standard for Petrochemical Industry （GB 8978-1996） in China.

关 键 词：厌氧氨氧化 腈纶废水 生物滤池 脱氮 深度处理 

分 类 号：X703.1[环境科学与工程—环境工程]