会员注册 会员登录 主办单位:国家建筑材料工业局技术图书馆 加为收藏 设为主页
1151web_logo
专注建材行业知识大数据
首页 外文期刊 中文期刊 图书馆 建材智网
您所在的位置:首页>>论文报告
利用耐高氨氮的光合细菌处理高氨氮废水(英文)
【文件类型】 【消费金额】1.2 【文章页数】4 【会员操作】  
【文章作者】周琴;张光明;郑祥;刘国华;
【文章摘要】      Wastewater with high NH_4~+-N is difficult to treat by traditional methods.So in this paper,a wild strain of photosynthetic bacteria was used for high NH_4~+-N wastewater treatment together with biomass recovery.Isolation,identification,and characterization of the microorganism were carried out.The strain was inoculated to the biological wastewater treatment unit.The impacts of important factors were examined,including temperature,dissolved oxygen,and light intensity.Results showed that photosynthetic bacteria could effectively treat high NH_4~+-N wastewater.For wastewater with NH_4~+-N of 2300 mg·L~(-1),COD/N=1.0,98.3%of COD was removed,and cell concentration increased by 43 times.The optimal conditions for the strain's cell growth and wastewater treatment were 30℃,dissolved oxygen of 0.5-1.5 mg·L~(-1) and a light intensity of 4000 lx.Photosynthetic bacteria could bear a lower C/N ratio than bacteria in a traditional wastewater treatment process,but the NH_4~+-N removal was only 20%-40%because small molecule carbon source was used prior to NH_4~+-N.Also,the use of photosynthetic bacteria in chicken manure wastewater containing NH4+-N about 7000 mg·L~(-1) proved that photosynthetic bacteria could remove NH_4~+-N in a real case,finally,83.2%of NH_4~+-N was removed and 66.3%of COD was removed.
【关 键 字】
【期刊】Chinese Journal of Chemical Engineering【卷】【ISSUE】【ISSUEID】    【文章期份】2015    【发布日期】2016/1/8 0:00:00    点击率:1    打印    关闭
关于我们 公告信息 业务资费 广告合同 友情链接 购买阅读卡 在线订《水泥》
网络市场部:010-65761182 网络技术部:010-51164639  传真:010-65761182 Email:service@chinabmi.com
在线咨询:  
国家建筑材料工业局技术图书馆 京ICP备06011358号   京公网安备11010502024146