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:吕远 孟令友 邹金龙[1] LYU Yuan;MENG Ling-You;ZOU Jin-Long(School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, China)
机构地区:[1]黑龙江大学化学化工与材料学院,哈尔滨150080
出 处:《黑龙江大学工程学报》2017年第4期38-43,共6页Journal of Engineering of Heilongjiang University
基 金:国家自然科学基金资助项目(51578218)
摘 要:为避免给水厂污泥处置不当对环境造成的危害,以及降低其处理的费用,给水污泥的资源化回收利用成为环境污染防治的焦点。通过对焙烧后的给水污泥进行碱性提取(碱浸),得到纯度较高的硅酸钠溶液,并以其为原料、应用水热合成方法,在pH=6时,制备出具有较大比表面积(1 241.2 m^2/g)及孔体积(1.2 cm^3/g)的介孔纳米SiO_2材料,从而实现对给水污泥中硅元素的回收。制备的介孔纳米SiO_2材料具有丰富的表面官能团和孔隙结构,使其在吸附分离和环境污染治理等领域有潜在的应用,预期具备较高的商业价值。To avoid the environmental pollution caused by the improper disposal of drinking-water treatment sludge (DWTS) and reduce the cost of DWTS treatment, scientific and reasonable use of DWTS is very interesting. Alkaline extraction was applied the roasted DWTS to obtain the sodium silicate solution with high purity, which was used as a raw material for the preparation of mesoporous Nano-SiO2 material to achieve the recovery of Si from the DWTS and the preparation of valuable mesoporous materials. The mesoporous Nano-SiO2 with the specific surface area (1 241.2 m^2/g) and pore volume of (1.2 cm^3/g) was prepared at pH =6. 0 by using hydrothermal method. These porous materials were rich in surface functional groups and porous structure, which could be applied in many fields. For example, these can be used for adsorption and separation of environmental pollutants and other issues. It was expected to have a high commercial value.
分 类 号:X703.1[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:216.73.216.28