【摘 要】
:
Inorganic -pillared montmorillonites were used to adsorb heavy metal pollutant in Waste Water Treatment.In this paper montmorillonite pillared by mixing Fe,Fe - Cr,Al - Fe and Cu - Al complexes was pr
【机 构】
:
Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunm
论文部分内容阅读
Inorganic -pillared montmorillonites were used to adsorb heavy metal pollutant in Waste Water Treatment.In this paper montmorillonite pillared by mixing Fe,Fe - Cr,Al - Fe and Cu - Al complexes was preparation and was characterized by XRD,N2 - BET,SEM and chemical analysis techniques.The XRD shows the d001 of Fe,Fe - Cr,Fe - Al and Cu - Al montmorillonite were 15.6(A) 15.8(A) 19.8(A) and 19.6(A) respectively.The specific areas of Fe,Al- Fe,Fe- Cr and Cu -Al montmorillonite are 75 m2/g,75 m2/g,68m2/g and 80m2/g,respectively.Element chemical analysis showed that the content of Fe,Fe -Cr,Al- Fe catalysts were 26.93%,31.03%,28.20%,respectively.The calcination temperature of PILCs should be lower than 480 ℃.
其他文献
Effects of global changes on lacustrine wetland and its feedbacks were reviewed based on published literatures.Global changes included climatic change,carbon dioxide concentration increase and land us
Surface water quality of medium-small rivers in the plain river network region (PRNR) of North Jiangsu Province was primarily investigated,with Sheyang County and Xinghua County as the representative
The experiment was done from March to May,2009.Different emergent aquatic plants,ten kinds of vegetables Allium sativum,Allium fistulosum,Ipomoea aquatica,Solanum lycopersicum,Solanum melongena L,Caps
The cassava was decomposed by conventional amylase and glucoamylase,or multi-strains selected from lab.Compared with the content of reducing sugar,the enzyme activity of amylase,cellulose,and protease
The buffering mechanism of phosphate by sediment means that sediments or suspended particles can control the soluble phosphate concentration in overlying waters around a fixed level when taking no acc
Water samples were collected in Changjiang estuary and then the colloidal organic carbon was isolated by mini tangential flow ultrafiltration(TFF) in situ.In the ultrafiltration process,the TFF system
研究建立交接断面排污总量财政结算机制:1、以上级政府确定的断面功能区划的水质标准和该断面多年平均迳流量确定该断面允许的排污总量。2、对该断面水质和流量进行自动或人工监测,测定当年排污总量。3、按照国家排污收费单价,国家未明确的按省物价局确定的单价计算金额。当上游超总量指标排放污染物时,由上一级政府在年终财政结算中从上游地方财政向下游支付超指标部分的污染物排放责任金;当上游少于总量指标排放时,由下游
仙女湖是重要旅游景区和城市主要饮用水源地,本文分析了影响仙女湖水环境的诸多因素和成因。论述了加强仙女湖水环境综合整治的必要性;并从管理机制、政策导向、资金投入模式以及防治工作企业废水、农村面源污染、景区生活污水、网箱养鱼、游船废水等方面提出了相应对策,为打造仙女湖现代休闲度假中心提供环境保护依据。
研究了孔石莼(Ulva pertusa)对Cu(Ⅱ)、Zn(Ⅱ)的吸附动力学,从Cu(Ⅱ)、Zn(Ⅱ)的初始浓度、温度及Cu(Ⅱ)、Zn(Ⅱ)共存等方面探讨影响吸附速率及吸附容量的因素。采用准一级动力学和准二级动力学方程描述了吸附过程的动力学特性。结果表明,准二级动力学方程能较好地拟合孔石莼吸附Cu(Ⅱ)的实验数据(拟合优度r2>0.99)。平衡吸附量qe随初始浓度增加而增大,准二级动力学速率常数
本文针对制药废水高COD高盐量的特点,采用臭氧-双氧水联用技术对其进行预处理,提高其可生化性,便于实现后续生物处理。臭氧作为一种强氧化剂,可氧化难降解有机物,H2O2在溶液中分解的中间体可促进反应形成较多的·OH自由基,产生的协同作用可进一步强化O3的氧化能力。本实验通过臭氧-双氧水联用技术预处理高浓度制药废水,研究了反应时间、pH值、O3用量、H2O2投加量对废水COD去除率的影响,结果表明:当