光纤pH计的设计

针对传统pH值测试方法的局限性，提出了一种新型pH值测量方案-光纤pH计。着重讨论了传感器的敏感部件原理与制作。并将当今流行的MCS－51系列单片机用于二次仪表设计，提高信息处理速度和精度并利于数显。     

测定气溶胶灭火剂产物PH值的新方法

气溶胶灭火剂是高效灭火剂，气溶胶灭火剂产物PH值测量对新型气溶胶灭火剂的开发有指导作用。与传统方法不同，本方法测量出的PH值具有唯一性，即每种气溶胶灭火剂产物的PH测定值与气溶胶灭火剂产物的组成有关而与吸收水量、吸收时间、气溶胶的留空时间无关。该方法能更好的比较不同气溶胶灭火剂产物间的酸碱度。     

Polymer Supported Calix[4]Arene Derivatives for the Extraction of Metals and Dichromate Anions

Three newly synthesized polymer supported calix[4]arene ionophores (7–9) were synthesized, and their ion binding properties toward selected alkali (Li⁺, Na⁺, K⁺, Cs⁺) and transition metal (Hg²⁺, Ni²⁺, Cu²⁺, Co²⁺, Cd²⁺, and Pb²⁺) cations were investigated. It has been observed that these ionophores are not selective toward a particular metal cation but show better ion binding property as compared to monomeric calixarene derivatives (2 and 6). Ionophore 6 and its supported polymer were also employed in dichromate anion extraction experiments. The polymeric ionophore (9) was found an effective extractant for dichromate anion even at pH 7.     

塔里木河流域生态安全问题分析

对新疆塔里木河流域1978年以来不同阶段出现的生态安全问题进行了深入分析,从水资源、植被和土地盐渍化、荒漠化等方面详细阐述了该区的生态安全状况,并提出今后该流域生态安全应关注的重点和研究的方向。     

碱渣废水的缓和湿式氧化处理分析

乙烯裂解过程中排放的碱渣废水,含有较高浓度的硫化物和有机物,本研究针对大庆石化总厂排放的乙烯裂解碱渣,采用缓和湿式氧化工艺,使处理后的废水硫化物小于2mg／L,并使COD去除率达到35％以上。     

碱法制浆造纸废水生物膜法达标排放技术

本文介绍了一种适用于碱法麦草制浆造纸废水达标排放处理工艺－生物膜法。在对四个示范工程的前期试验试验研究中证实了生物膜法在碱法麦草浆造纸废水处理的技术和经济可行性。     

pH值对双碱法脱硫效果和运行的影响

介绍了双碱法烟气脱硫工艺在北京某供暖中心的工程运用,研究了工程运用中pH值对系统脱硫效果和运行的影响,从而得出最佳的pH值范围。     

Synthesis and Extraction Study of Calix[4]arene Dinitrile Derivatives Incorporated in a Polymeric Backbone with Bisphenol-A

Two new copolymers containing pendant calix[4]arene units with nitrile functionalities at their lower rim have been synthesized via nucleophilic substitution reactions involving 5,11,17,23-tetra-tert-butyl-25,27-bis(cyanomethoxy)-26,28-dihydroxy-calix[4]arene (3) or 25,27-bis(cyanometh oxy)-26,28-dihydroxy-calix[4]arene (4) with 1,5-dibromopentane and bisphenol-A. The phase transfer studies were performed by using liquid–liquid extraction procedures. It has been deduced from the observations that both copolymers show a good phase transfer affinity toward selected alkali, alkaline earth, and transition metal cations, unlike their precursor (3).     

造纸制浆集中生产及其碱回收与综合废水治理工艺设计

本文介绍了滑县锦华纸业集团新建漂白草浆集中制浆工艺、碱回收及全厂综合废水治理工艺设计。     

土壤聚合物的制备及其固化重金属离子的研究

土壤聚合物(土聚物)是一种新型的无机聚合物,其分子链由Si,O,Al等以共价键连接而成,是具有网络结构的类沸石,对重金属有较强的固定作用。初步探索了用偏高岭土、碱激活剂等合成土聚物的工艺条件,研究了原料配方、水的加入量对土聚物性能的影响。当氧化硅与氧化铝的摩尔比为4．0-4.5、氧化钠与氧化硅的摩尔比为0．27—0．35时,得到了抗压强度大于48MPa的土聚物;用其固化Zn^2 ,Pb^2 ,Cu^2 和Cd^2 ,其对上述重金属离子的捕集效率为96．86％,99．86％。