检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]湖北师范学院,湖北黄石435002 [2]武汉理工大学,武汉4300702
出 处:《非金属矿》2007年第4期53-55,共3页Non-Metallic Mines
基 金:国家"973"计划项目(项目编号:2004CB619204);教育部科学技术研究重点项目(项目编号:02052)
摘 要:研究了累托石与十二烷基二甲基苄基氯化铵(1227)有机改性后去除铜冶炼工业废水中重金属的条件。结果表明,在未调节铜冶炼工业废水pH值、有机改性累托石用量为0.05g/mL、作用时间为40min、温度为25℃的条件下,Cu2+、Pb2+、Zn2+的去除率分别为98.47%、96.83%、91.84%,处理后的水符合国家污水综合排放标准(GB8978-1996)一级标准。有机改性累托石去除Cu2+、Pb2+、Zn2+的效果,比累托石、粉煤灰要好;对Zn2+、Cu2+有很好的吸附选择性。The adsorption of rectorite modified by dodecyl benyl dimethyl ammonium chloride(1227) for heavy metal ions from copper smelter industry wastewater has been studied. The experimental results showed that under the conditions without adjusting the pH, with the amount of organic modified rectorite of 0.05g/mL, the reaction time of 40 minutes, and the temperature of 25℃, the removing efficiency of modified rectorite for Cu^2+, Pb^2+and Zn^2+ from copper smelter industry wastewater is 98.47%, 96.83% and 91.84%,and the quality indexes of the wastewater after treatment conform with the first level of integrated wastewater discharge standard (GB8978-1996). The removing efficiency of organic modified rectorite for Cu^2+, Pb^2+and Zn^2+ is better than unmodified rectorite or fly ash. Furthermore, it is found that the organic modified rectorite has a strong affinity for adsorption of Zn^2+ and Cu^2+.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117