环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2012年
6期
97-101
,共5页
郑黎明%方舟%任中科%王罗春%蒋海涛
鄭黎明%方舟%任中科%王囉春%蔣海濤
정려명%방주%임중과%왕라춘%장해도
短程硝化反硝化%序批式生物膜反应器%溶解氧%亚硝酸盐氮积累率
短程硝化反硝化%序批式生物膜反應器%溶解氧%亞硝痠鹽氮積纍率
단정초화반초화%서비식생물막반응기%용해양%아초산염담적루솔
short -cut nitrification and denitrification%SBBR%dissolved oxygen%nitrite accumulation rate
在序批式生物膜反应器内接种以氨氧化细菌和反硝化细菌为主的活性污泥,期望实现亚硝酸型同步硝化反硝化生物脱氮,处理城市污水。在进水TN为30-40me/l、氨氮为30-35mg/l、COD为250rag/1左右、pH值为7.50-7.80、温度为25±1℃等条件下,研究不同溶解氧对总氮去除率和亚硝酸盐氮积累率的影响,结果表明,在溶解氧浓度为1.5-2.5mg/l时,可以实现稳定的亚硝酸型硝化反硝化,总氮去除率为75%左右,亚硝酸盐氮积累率为65%-82%。
在序批式生物膜反應器內接種以氨氧化細菌和反硝化細菌為主的活性汙泥,期望實現亞硝痠型同步硝化反硝化生物脫氮,處理城市汙水。在進水TN為30-40me/l、氨氮為30-35mg/l、COD為250rag/1左右、pH值為7.50-7.80、溫度為25±1℃等條件下,研究不同溶解氧對總氮去除率和亞硝痠鹽氮積纍率的影響,結果錶明,在溶解氧濃度為1.5-2.5mg/l時,可以實現穩定的亞硝痠型硝化反硝化,總氮去除率為75%左右,亞硝痠鹽氮積纍率為65%-82%。
재서비식생물막반응기내접충이안양화세균화반초화세균위주적활성오니,기망실현아초산형동보초화반초화생물탈담,처리성시오수。재진수TN위30-40me/l、안담위30-35mg/l、COD위250rag/1좌우、pH치위7.50-7.80、온도위25±1℃등조건하,연구불동용해양대총담거제솔화아초산염담적루솔적영향,결과표명,재용해양농도위1.5-2.5mg/l시,가이실현은정적아초산형초화반초화,총담거제솔위75%좌우,아초산염담적루솔위65%-82%。
Abstract:Inoculated with activated sludge - based ammonia - oxidizing bacteria and denitrifying bacteria in a sequencing batch biofilm reactor( SBBR), this study expects to achieve simultaneous nitrification and denitrification via nitrite to treat munici- pal sewage. Under the condition of influent TN 30 - 40 mg/1, NH4+ - N 30-35 mg/1, COD about 250 mg/1, pH 7.5-8.0 and temperature 25±1℃, the influence of different dissolved oxygen on nitrite accumulation rate and TN removal efficiency were ana- lyzed. The result showed that stable accumulation could be realized with dissolved oxygen of 1.5 -2. 5 mg/1, TN removal efficien- cy of about 75% and nitrite accumulation rate of 65% -82%.