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
作 者:杨永珠[1] 江映翔[1] 刘艳冰 李志林[1] 陈金梦[1] 孙文灏[1] 李江燕[1]
机构地区:[1]昆明理工大学环境科学与工程学院,云南昆明650093 [2]云南碧蓝环境工程有限公司,云南昆明650034
出 处:《工业水处理》2013年第8期33-36,62,共5页Industrial Water Treatment
摘 要:采用共沉淀法制备了不同掺铁量的铁-镧系合金吸附剂。实验结果表明:存在一个最佳掺铁量,以铁、镧物质的量比为0.08的吸附剂除磷能力最强。与掺铁量为零的吸附剂相比.铁-镧系合金吸附剂对磷酸根的吸附量明显提高。吸附剂的吸附行为符合伪二级反应速率方程,吸附等温线可用Langmuir方程更好地描述。该吸附剂的吸附量受pH影响显著,pH在4~7时,吸附量大且稳定,酸性条件更有利于吸附反应的进行。Iron-lanthanide alloy adsorbents doped with different amount of iron have been prepared by co-precipita- tion method. The experimental results show that:there has been an optimum iron doping dosage. The phosphorus re- moving rate of the adsorbent is the strongest when irordlanthanide quantitative ratio is 0.08. Compared with the ad- sorbent whose iron-doped quantity is zero, the iron-lanthanide alloy adsorbent exhibits a higher phosphate removing efficiency. The adsorption behavior complies with the pseudo-second-order kinetics equation. Langmuir equation can describe the adsorption isotherm better. The adsorption capacity of the adsorbent can be significantly influenced by pH. When pH is 4-7, the adsorptive capacity is greater and more stable, and acidic conditions are more propitious to adsorption reaction.
分 类 号:X703[环境科学与工程—环境工程]
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:216.73.216.222