给水排水
給水排水
급수배수
2009年
z2期
159-162
,共4页
孙长虹%刘桂中%武江津%王永刚
孫長虹%劉桂中%武江津%王永剛
손장홍%류계중%무강진%왕영강
MBR%粉%污染物%转化
MBR%粉%汙染物%轉化
MBR%분%오염물%전화
MBR%Silt%Pollution%Transformation
通过土柱试验模拟了MBR工艺出水在粉土介质中的下渗过程,并对下渗过程COD_(Mn)和三氮(NO_3~--N,NO_2~--N,NH_3-N)的迁移转化规律进行了分析研究.试验结果表明:MBR出水中的CODMn在粉土介质中容易得到降解,而氮素虽然在粉土介质中存在硝化和反硝化反应,经拟合总氮反应符合一级反应动力学方程,但从总体上看总氮降解速率缓慢,试验条件下总氮的衰减系数为0.105 9 m~(-1).
通過土柱試驗模擬瞭MBR工藝齣水在粉土介質中的下滲過程,併對下滲過程COD_(Mn)和三氮(NO_3~--N,NO_2~--N,NH_3-N)的遷移轉化規律進行瞭分析研究.試驗結果錶明:MBR齣水中的CODMn在粉土介質中容易得到降解,而氮素雖然在粉土介質中存在硝化和反硝化反應,經擬閤總氮反應符閤一級反應動力學方程,但從總體上看總氮降解速率緩慢,試驗條件下總氮的衰減繫數為0.105 9 m~(-1).
통과토주시험모의료MBR공예출수재분토개질중적하삼과정,병대하삼과정COD_(Mn)화삼담(NO_3~--N,NO_2~--N,NH_3-N)적천이전화규률진행료분석연구.시험결과표명:MBR출수중적CODMn재분토개질중용역득도강해,이담소수연재분토개질중존재초화화반초화반응,경의합총담반응부합일급반응동역학방정,단종총체상간총담강해속솔완만,시험조건하총담적쇠감계수위0.105 9 m~(-1).
In this article the simulation study about infiltration process of MBR effluent in silt medium was made through laboratory soil-column experiment. Also the transformation rule of COD_(Mn) and nitrogen was researched. According to the experiment result, COD_(Mn) in MBR effluent was degraded easily. But for nitrogen, although nitrification and denification for nitrogen existed in silt medium and total nitrogen reaction process accorded with the first-order kinetics equation with decay constant of 0.105 9 m~(-1) on experiment condition, the degradation velocity of total nitrogen was relatively slow as a whole.
