污水处理成本及其降低对策

污水处理成本高造成其设施运转率低，运行效果差、管理不善和电费过高则是成本高的原因。要降低污水处理成本，必须尽量满负荷运转，把污染源管理全面纳入企业经营管理，合理利用水资源并给予鼓励政策。     

城镇生活污水再利用的技术方法研究

结合我国城镇生活污水处理水平低,地表水污染现象严重这一迫切的实际问题,提出将生活污水集中收集,通过排污管道输送农田进行灌溉处理的方法,达到节水节肥、减轻水体污染的目的。分析了生活污水再利用的技术途径、污染防御措施、产生的环境和经济效益,提出在作物非生长季节及汛期生活污水净化和再利用的方法。     

炼油废水反硝化脱氮新工艺研究

用水解酸化－好氧工艺模拟炼油废水生化处理系统，在二沉池中加入软性纤维填料后，不但使泥水分离效果更好，而且可起到反硝化脱氮的功能，改进了脱氮工艺的传统方式，弥补了由于原工艺中构筑物的原因造成废水无法回流脱氮的缺陷。二沉池中反硝化工艺研究表明，当供给适量C源、DO＜1mg/L、温度在25℃-40℃时，NOx-N降解率可达75％－90％。出水COD、oiL等各污染指标均达到国家和DB44／56－92地方排放标准。     

污水深井处置初探

介绍了深井处置技术概况，探讨了污水深井处置的优缺点、处理费用，确定了选择深井的原则和污水处理的原则，同时对深井处置的水质标准进行了讨论。     

水环境中非离子表面活性剂生物降解性的研究

本文对两种非离子表面活性剂(Tx-100、Oπ-10)在静态生活污水中生物降解性进行了初步研究。结果表明：Tx-100、Oπ-10具有较强的生物可降解性。水体中高浓度的Tx-100、Oπ-10一般在五天之后降解率可达97％，而且微生物对这两种非离子表面活性剂的降解能力基本相同。降解前后水体中CODcr、BODs值变化不大，说明非离子表面活性剂对该水域的污染并不明显。因此。可以认为Tx-100、0π-10是值得推广使用的表面活性剂。     

接触氧化法在生活污水回用工程中的应用

介绍了接触氧化法在某生活小区生活污水回用工程中的应用。污水回用工程设计处理量为120．0m^3／d，采用了水解酸化 二级生物接触氧化 两级过滤 臭氧消毒的综合处理工艺流程，运行效果稳定。     

Dye removal from wastewater using the adsorbent developed from sewage sludge

Introduction Adsorptionisrelevantinenvironmentalpollutionandprotectionwithreferencetowaterandwastewatertreatment(Bowen,1992).Toxicmaterials,hazardousionsanddyes fromindustrialeffluentsbythewayofadsorptionareofgreatsignificantinconnectionwithenvironmentala…     

密切值法用于城市污水处理厂布局规划的研究

用密切值法作多目标决策优选，由城市污水处理厂的3个标准方式和11个家处理厂的工艺改造投资、污水厂运行成本和处理水量等11个评价指标的极端情况，组成“虚拟”的最好（长期保留）和最差（应该废除）方案，进而求出各污水处理厂（统称为样本点）与最好、最差方案的距离，计算可综合反映与最好和最差方案距离两者水平的综合参数－密切值，并根据密切值的大小进行排序。实例计算表明，密切值法与灰色局势决策法得到相似的排序结果，说明密切值法用于城市污水处理厂布局规划是切实可行的。而且密切值法不需要确定白化函数等主观参数，计算结果更客观和可靠。     

ABR-生物接触氧化法处理纤维板生产废水

以工程为例，介绍了折流厌氧反应器和生物接触氧化工艺在处理纤维板生产废水中的应用。结果表明CODCr去除率达到97％，出水水质为110mg／L，能够满足国家二级排放标准，具有一定的推广价值。     

Plants grown on sewage sludge in South China and its relevance to sludge stabilization and metal removal

The production of sewage sludge in China has been increasing sharply in order to treat 40% of the municipal sewage in 2005 as planned by central government. The main sludge disposal method is landfill owing to heavy metal contamination, but it presents an attractive potential for agricultural land application. Experiments were carried out to study the simultaneous metal removal and sludge stabilization byplants. The sludge samples were collected from Datansha Wastewater Treatment Plant of Guangzhou, it contained excessive Cu and Zn comparedwith the Chinese National Standard for Agricultural Use of Sewage Sludge. Plants growing on sludge beds were investigated to follow their growthand metal uptake. 30 sludge plants were identified during 1 year‘s observation. A Zn high-accumulating and high growth rate plant( A/ocas/amacrorrhiza) was selected and grown on sludge beds in plots. The water, organic matter, heavy metals and nutrients contents, the E. colinumber and the cress seed germination index were monitored for the slu,ge samples collected monthly. The plant growth pparameters and its heavy metals contents were also determined. The sewage sludge treated by plants could be stabilized at about 5 months, the E. coli numberwas significantly decreased and the cress seed germination index attained 100%. Crop on sludge could ameliorate the sludge drying. Theexperiments are continuing to find out the appropriate plant combination for simultaneous sludge stabilization and metal removal for an acceptableperiod. Comparisons between the proposed processes and other methods for treating produced sludge such as composting, chemical and bacterial.