水资源与水工程学报
水資源與水工程學報
수자원여수공정학보
JOURNAL OF WATER RESOURCES AND WATER ENGINEERING
2014年
4期
195-199,206
,共6页
邹瑜%徐晓晨%杨凤林%靳文尧
鄒瑜%徐曉晨%楊鳳林%靳文堯
추유%서효신%양봉림%근문요
水解酸化%SNAD工艺%C/N%VFAs%农村生活污水
水解痠化%SNAD工藝%C/N%VFAs%農村生活汙水
수해산화%SNAD공예%C/N%VFAs%농촌생활오수
hydrolysis acidification%SNAD process%C/N ratio%VFAs%rural sewage
为解决农村生活污水的高效除碳脱氮问题,以厌氧水解-同时硝化反硝化厌氧氨氧化( SNAD)工艺处理低C/N比农村生活污水。实验结果表明:水解酸化单元进水C/N比为2∶1时,COD的去除率达到69%;产物VFA主要成分为乙酸、丙酸和正丁酸,平均含量分别为88.4%、6.5%与5.1%,VFAs/COD比为0.74;出水C/N比为3∶5。水解酸化单元出水进入SNAD脱氮单元,通过亚硝化、反硝化与厌氧氨氧化的耦合作用,该单元COD与总氮的去除率分别可达到76.7%和84.1%。厌氧水解-SNAD组合工艺COD与总氮总去除率分别达到92.8%和84.1%。
為解決農村生活汙水的高效除碳脫氮問題,以厭氧水解-同時硝化反硝化厭氧氨氧化( SNAD)工藝處理低C/N比農村生活汙水。實驗結果錶明:水解痠化單元進水C/N比為2∶1時,COD的去除率達到69%;產物VFA主要成分為乙痠、丙痠和正丁痠,平均含量分彆為88.4%、6.5%與5.1%,VFAs/COD比為0.74;齣水C/N比為3∶5。水解痠化單元齣水進入SNAD脫氮單元,通過亞硝化、反硝化與厭氧氨氧化的耦閤作用,該單元COD與總氮的去除率分彆可達到76.7%和84.1%。厭氧水解-SNAD組閤工藝COD與總氮總去除率分彆達到92.8%和84.1%。
위해결농촌생활오수적고효제탄탈담문제,이염양수해-동시초화반초화염양안양화( SNAD)공예처리저C/N비농촌생활오수。실험결과표명:수해산화단원진수C/N비위2∶1시,COD적거제솔체도69%;산물VFA주요성분위을산、병산화정정산,평균함량분별위88.4%、6.5%여5.1%,VFAs/COD비위0.74;출수C/N비위3∶5。수해산화단원출수진입SNAD탈담단원,통과아초화、반초화여염양안양화적우합작용,해단원COD여총담적거제솔분별가체도76.7%화84.1%。염양수해-SNAD조합공예COD여총담총거제솔분별체도92.8%화84.1%。
In order to solve the problem of removal of carbon and nitrogen of rural sewage , the paper used an anaerobic hydrolysis -SNAD process to treat this kind of wastewater with low C/N ratio.The results show that , when the C/N ratio of influent in hydrolysis acidification unit is 2 to 1 , the removal efficiency of COD reaches 69%.The main components of VFAs are acetic acid , propionic acid and ethacetic acid . The average contents are 88.4%, 6.5%and 5.1%respectively.Meanwhile the ratio of VFAs and COD reaches 0.74 and the ratio of C/N in effluent is 3 to 5.The hydrolysis acidification unit come into SNAD nitrogen removal unit , through the action of the coupling of partial nitrification , denitrification and anam-mox, the removal efficiencies of COD and total nitrogen reach 76.7%and 84.1%respectively.The re-moval ratio of COD and total nitrogen by using anaerobic hydrolysis -SNAD combined process reach 92 . 8%and 84 .1%respectively .