水源中NH4^＋—N对生物预处理污染原水除NH4^＋—N效果影响研究

采用弹性填料微孔曝气生物预处理方法净化受污染的某饮用水解，探讨了水源水环境中NH4^ -N变化对生物预处理除NH4^ -N作用效果的影响，结果表明，水源水环境中的NH4^ -N对生物预处理工艺除NH4^ -N有一定的影响作用。     

烟气净化新工艺——烟气冷凝净化法

本文介绍了国外烟气冷凝净化新工艺技术,并与传统工艺比较,显示其是一种有远大前景的空气污染控制技术.     

电脱盐污水的预处理

通过小试选择出先用H_2SO_4调节污水pH值,后投加甲壳质和聚铝絮凝剂处理脱前注碱电脱盐污水的预处理方法。经设计的试验装置验证,本预处理流程是可行的,处理效果显著,COD和油的去除率可达95％以上,经预处理的污水可直接排污水处理场,不会造成冲击。     

Abatement of waste gases and water during the processes of semiconductor fabrication

The purpose of this article is to examine the methods and equipment for abating waste gases and water produced during the manufacture of semiconductor materials and devices. Three separating methods and equipment are used to control three different groups of electronic wastes. The first group includes arsine and phosphine emitted during the processes of semiconductor materials manufacture. The abatement procedure for this group of pollutants consists of adding iodates, cupric and manganese salts to a multiple shower tower ( MST ) structure. The second group includes pollutants containing arsenic, phosphorus, HF, HCI, NO2, and SO3 emitted during the manufacture of semiconductor materials and devices. The abatement procedure involves mixing oxidants and bases in an oval column with a separator in the middle. The third group consists of the ions of As, P and heavy metals contained in the waste water. The abatement procedure includes adding CaCO3 and ferric salts in a flocculation-sedimentation compact device equipment. Test results showed that all waste gases and water after the abatement orocedures oresented in this article passed the discharge standards set by the State Environmental Protection Administration of China.     

废机油的处置及利用

工厂大量使用的废机油，经过预处理及酸、碱洗涤等步骤去除渣质，可以回收同原油一样使用。     

某食品有限公司废水处理站工艺设计

根据对某食品有限公司废水的实验研究和我们的工程实践经验,对该生产工艺各工序的废水分别进行预处理,全厂综合废水进行序批式活性污泥法(SBR法)的处理工艺,预期出水达到二级排放标准,同时实现了废料回收。具有较好的环境效益和经济效益。     

固相微萃取技术简介

固相微萃取（SPME）是样品分析中一种不需要添加溶剂的预处理技术。章对SPME的发展情况、原理、装置结构、应用条件及影响因素作了基本介绍，并对其应用状况及前景作了初步探讨。     

测定水中挥发酚的几点体会

介绍了在挥发酚测定过程中，对显色剂4-氮基安替吡啉(以下简称4-AAP)处理、样品的预处理、蒸馏等问题的几点体会，并针对性提出了解决办法。     

铸造泥芯废气的治理

通过对铸造泥芯废气排放特性的分析 ,采用自行设计的冷凝水洗处理系统 ,废气治理效果明显 ,达到了国家排放标准。该法可供参考借鉴