邻菲啰啉分光光度法测定水中总铁的改进

对邻菲啰啉分光光度法测定水中总铁的方法进行了改进：采用50mL比色管水浴还原水样——分光光度计比色测定水中总铁。测试结果表明，改进法精密度和准确度均优于标准方法，是测定水中总铁较为理想的方法。     

对氨基酚生产废水的综合治理技术研究

本文提供的对氨基酚生产废水综合治理技术，采用蒸发结晶法回收工艺废水中的对氨基酚和硫酸铵，采用甲苯萃取－蒸馏分离法回收共沸废水中的苯胺，采用梯度浓度优势菌－常规生化组合技术处理混合废水，投资６１０万元建设年产２０００ｔ对氨基酚生产废水治理工程，排水可达到国家污水综合排放二级水质标准，每这可回收硫酸铵３０６０ｔ，苯胺３９０ｔ，对氨基酚６０ｔ，年回收价值５８０万元，年利税合计１８７万元，实现了废水处理与     

从环境政策角度探析邻避效应——以杭州市中泰九峰垃圾焚烧厂为例

"邻避效应"是我国长期积累的环境、经济和社会问题,并在未来一段时期呈现常态化特征,缓解邻避效应已成为世界性难题。本文以杭州市余杭区中泰九峰垃圾焚烧厂为案例,运用法治思维和方式从政府、企业和公众等多维度客观理性分析事件的内在本质和原因,并提出了缓解邻避效应的对策建议。     

邻避情结下环境影响评价的公众参与研究——以东北地区A市为例

环境影响评价中引入公众参与是尊重与保护建设项目周围民众相关权利的程序.民众在参与基建项目的环境影响评价过程中会针对项目的负外部性表现出明显的邻避情结,甚至引发邻避冲突.文章通过对“邻避”概念的梳理,并针对东北沿海A市的环境影响评价公众参与情况进行分析,在邻避的视角下探讨环评公参的现实情况,并以政府、企业与民众这些不同角色为主体探讨化解邻避冲突的方式.     

公众参与视角下的邻避行动研究

邻避行动的现有研究通常更关注利益分配是否公正,补偿措施是否到位,政府是否失责等.然而,邻避行动的另一诱发因素来自于利益分配过程中的公众参与.基于这一视角,邻避事件中公众与政府的冲突问题被还原为管理问题,矛盾的纠结点被归纳为各利益相关者之间的互动和沟通问题.通过运用参与式评价工具,对K市垃圾焚烧项目各阶段的公众参与情况进行了实地调查,在此基础上,总结了邻避行动的成因与演变逻辑,制定了公众参与策略.     

Removal of a type of endocrine disruptors-di-n-butyl phthalate from water by ozonation

Ozonation of synthetic water containing a type of endocrine disruptor-di-n-butyl phthalate （DBP） was examined. Key impact factors such as pH, temperature, ionic strength, ozone dosage and initial DBP concentration were investigated. In addition, the activities of radicals on uncatalysed and catalysed ozonation were studied. The degradation intermediate products were followed and the kinetic of the ozonation were assessed as well. Results revealed that ozonation of DBP followed two mechanisms. Firstly, the reaction rate of direct ozonation was slower at lower pH, temperature, and ionic strength. Secondly, when these factors were increased for indirect radical reaction, higher percentage of DBP was removed with the increase of the initial ozone dosage and the decrease of the initial DBP concentration. In addition, tea-butanol, humic substances and Fe（Ⅱ） affected DBP ozonation through the radical pathway. It was determined that ozonation was restrained by adding tea-butanol for its radical inhibition effect. Furthermore, humic substances enhanced the reaction to some extent, but a slight negative effect would be encountered if the optimum dosage was exceeded. As a matter of fact, Mn（Ⅱ） affected the ozonation by ＂active sites＂ mechanism. In the experiment, three different kinds of intermediate products were produced during ozonation, but the amount of products for each one of them decreased as pH, temperature, ionic strength and initial ozone dosage increased. A kinetic equation of the reaction between ozone and DBP was obtained.     

与天为邻 新疆帕米尔

一直神往帕米尔高原,渴望与那蓝天白云亲密接触的我终于有了一次机会。一路上,帕米尔高原给了我无尽的想像,梦中的、神秘的帕米尔究竟是什么样子？使多少文人墨客无限向往，为之倾倒，留恋不舍。     

吐温20和Mn(Ⅱ)存在下二安替匹林-邻氯苯基甲烷光度法测定水中微量铬(Ⅵ)

在H_3PO_4介质中,吐温20和Mn(Ⅱ)存在下,二安替匹林-邻氯苯基甲烷与Cr(Ⅵ)生成红色化合物,λ_(max)为480nm,ε为1.37×10~5,Cr(Ⅵ)量在0～10(μg/25ml)符合比耳定律。方法有好的选择性,体系可稳定24时,用于水中微量铬(Ⅵ)的测定效果良好。初步探讨了反应机理。     

应用XAD—7树脂富集水中痕量邻氯酚和对氯酚

采用ＸＡＤ－７树脂吸附富集自来和地面水中良量氯酚和对氯酚。后用氢焰气相色谱法测定。在溶液的ｐＨ小于６，流为１０毫升／分以内，平均吸附效率达９４％和９２％。甲醇、丙酮和（１＋１）丙酮＋乙醚混和液均有９６％以上的淋洗效率。     

应用HGAFS法测定污泥中铅

主要介绍了采取HGAFS法测定污泥中铅含量的分析方法及操作中的注意事项,对应用方法提供了相关的仪器参数.在注意事项中重点指出了由于污泥中由于成分复杂,含量相对较高,应该用硫氰酸钾-草酸-高铁氰化钾-邻菲罗啉体系来去除常见重金属离子的干扰,并且提出在测定过程中,酸度的影响比较关键.