济南市2000年城市污水处理,回用及投资效益预测

本文通过对济南市２０００年城市污水处理，回用及投资，效益预测，为济南市水资源综合开发利用，环境治理与规划提供决策依据。     

城市污水处理设施空间格局优化研究——以江苏省淮安市为例

城镇污水处理设施的建设和维护,对现代城市的可持续发展、确保水环境不受污染具有重要意义。以江苏省淮安市为例,以乡镇为评价单元,分析污染源的空间格局、变化趋势及其环境影响、污水处理设施需求,研究城镇污水处理能力与废污水排放的空间匹配格局。综合考虑废污水排放特征、污水处理厂的实际能力与设计能力,利用ArcGIS空间分析工具,将研究区划分为治污潜力释放类型区、治污增强类型区和维持现状类型区,对比分析废污水排放与治理能力缺口,提出污水处理设施建设与运营导向,为城镇污水处理厂建设选址与布局优化提供科学依据。     

C/B法城镇污水处理技术简介

目前我国城市污水处理普遍采用的工艺为普通活性污泥法、氧法沟法、SBR法及AB法等。这些工艺虽然运行稳定，达到可靠，但投资大、运行费用高。鉴于我国的经济发展水平与发达国家有较大的差距，污染治理的资金投入有限，提出必须研究适合我国国情的高效、低耗、低成本的城市污水处理技术。阐述了C/B法的C段和B段污水处理技术，指出由于该技术是化学强化处理技术与生物滤池技术的有机结合，综合了化学处理与生物处理技术的优点，具有可分阶段实施、投资省、运行费用低、占地少、有效去除磷、氨、氮等优点。     

桐乡市政污水泵站扩容改造工程设计与运行浅析

<正>城市污水处理是改善生态环境、促进水循环系统发展的重要措施,同时也是实现水资源重复利用的有效途径^[1]。根据桐乡市的经济发展战略,由于目前的污水处理厂处理量小、效率低、水质不理想,难以满足桐乡市的污水处理需求。基于此,本文深入研究了桐乡市政污水泵站扩容改造工程的设计与运行,分析了桐乡市的污水处理现状,制定了科学且合理的改造计划,以实现高效率的市域污水处理,为桐乡市的生态建设和经济发展提供基础保障。     

可变过滤系统在污水处理中的运行策略优化

为解决农村污水处理困难、能耗高的问题,文章提出了一种基于模拟退火算法的污水过滤系统的优化运行策略。基于该策略,在保证出水水质不变的基础上,将城市污水处理的平均能耗降低了10%,农村污水处理平均能耗降低15%左右。该策略响应了国家节能减排的号召,并为城市农村污水处理提供了新的思路和策略。     

晋城市中水利用研究

晋城市是一个水资源严重短缺的城市,通过分析晋城市目前城镇污水处理、煤化工废水处理、煤矿废水处理及其利用现状,提出中水利用存在的问题和开拓晋城市中水市场的主要途径;同时对各类排水系数进行了分析,对中长期中水资源量及可利用量进行评价,对中水处理技术和中水利用系统进行可行性分析,提出晋城市中水资源利用有较大的潜在市场,中水利用是解决水资源紧缺、实现水资源循环使用以及建设节水型社会的有效措施,并提出利用中水的建议。     

城市污水处理工艺流程

简述城市污水的类别及处理方法,城市污水处理的常规处理工艺,以及后续的污泥处理,针对日趋加重的水污染问题,研究比较有效的污水处理方法,开发适合我国高效低耗的污水处理新工艺和技术。     

西北地区农村生活污水处理研究——以黄陵县为例

随着经济的迅速发展和人口的不断增长,农村生活污水对流域污染严重加剧.本文以西北地区为研究对象,针对其自然条件、社会经济等特点,总结了适合该区的农村污水处理工艺及其特点;进而以黄陵县为具体研究对象,按照沿水域区和非水域区,筛选了适应不同区域的农村生活污水处理技术及其要求,为缺水地区污水处理与水资源合理利用奠定了基础.     

山东省枣庄市新城规划区地质环境适宜性分析探讨

该文根据规划区的地形地貌、基础地质、水文地质、工程地质、环境地质等条件，在明确适宜性分析原则、方法的基础上，将新规划区分为：地下水供水潜力区，休闲娱乐区、地质遗迹保护，防护林带，城市建筑区、生态农业区、垃圾及污水处理区，并对地质适宜性分区中存在问题进行了探讨。     

污水治理技术及新进展概述

介绍了目前污水处理的技术革新与最新动态，并对各种工艺进行分析与评述，以便决策者因地制宜选择适宜技术处理技术。     

Non-parallelism between the effect of microbial flocculants on sewerage disposal and the flocculation rate

1 IntroductionMicrobial flocculant (MBF) is one of the naturalmacromolecular organic compounds, which is producedby some microorganisms and has a high flocculationfunction ( Cheng Wen et al., 2003). It has beencalled“the third-generation flocculant”beca…     

城市污水处理厂污泥处理处置刍议

污水厂污泥是城市综合污水中污染物的成分浓缩,污泥的处理处置是污水处理的一个重要环节,就污泥的处理处置现状、方式及其发展方向作一综述。     

Splintering urbanism in Mumbai: Contrasting trends in a multilayered society

This paper is an examination of the splintering urbanism argument of the relationship between neo-liberal reforms of infrastructure networks and urban cohesion. Based on an analysis of historical and contemporary processes of infrastructure provision (water, sewerage and power) in colonial/post-colonial Bombay/Mumbai, it questions the assumption of a “modern infrastructure ideal” in the context of developing cities. In Mumbai, the historical analysis reveals the contradictions between this ideal and a hierarchical society. From the outset, access to services (particularly water and sewerage) was highly distorted in favour of the elites, even though utilities networks contributed to urban integration through cross-subsidies within and across sectors, and through the setting up of municipal institutions. Second, ongoing sectoral reforms demonstrate contrasting trends as increased differentiation of services produces both positive – better adaptation to users’ needs – and potentially negative – fragmenting – socio-spatial implications. Third, an understudied potential fragmenting threat also lies in the sectoral approach to reforms as it undermines the existing crosssector subsidies and prevents the articulation of utility reforms with other limiting factors, such as land and transport, which are the main constraints for expanding housing and mobility in the city.     

地下污水管道泄漏对环境影响研究进展

地下污水管道的泄漏普遍存在.污水管道一旦泄漏,将会对土壤、地下水环境产生严重的影响.主要阐述了管道泄露的研究现状以及地下水入渗对地下水管的危害;总结了地下水管网泄露的种种原因;分析了污水管道泄露对地下环境的各种影响,主要表现为:改变土壤的理化性质,引起土壤污染,造成土壤富营养化,进而导致地下水污染,减少淡水资源,引起水土流失.     

Pro-poor sanitation technologies

It is estimated that at least two billion people have inadequate sanitation. The current situation in water and sanitation services for millions of peri-urban residents is starkly anti-poor and represents a major challenge for the 21st century. By virtue of its cost and water requirements, we would argue that conventional sewerage is an implicitly anti-poor technology. This paper summarises low-cost sanitation technologies that have been developed by engineers from around the world, and seeks to provide evidence that there is such a thing as a pro-poor technology. We argue that simplified sewerage is often the only sanitation technology that is technically feasible and economically appropriate for low income, high-density urban areas. Simplified sewerage will only truly be a pro-poor technology if issues such as lack of investment in sanitation, insufficient cost recovery for sanitation services, conservative technical standards favoured over innovation, low-cost technologies perceived as second class provision, the nature of peri-urban settlements, and lack of engagement with users, are addressed. So often, peri-urban sanitation schemes fail to exist, fail to be sustainable, or fail to be pro-poor. The challenge is for engineers, social scientists and other professionals to work together to make pro-poor sanitation a reality and interdisciplinarity the norm.     

Flood frequency analysis

Natural Hazards - The recurring flooding causes loss of life and damage to buildings and other structures, including bridges, sewerage systems, roadways and canals. It also frequently damages power...     

高密度多波列地震影像法其在合流污水管道探测中的应用

文章简要介绍了高密度多波列地震影像的原理及方法技术。并用实例说明了在合流污水管道探测中的应用。     

重庆排污工程长江隧洞岩体渗透压力监测结果分析

介绍了重庆排污工程长江隧洞岩体渗透压力监测设备的布置情况及渗透压力监测结果。结果表明,隧洞顶板和底板的岩体渗透压力与长江水位变化有直接的相关性。     

北京建材化工厂采石场边坡生态修复施工实践

通过北京建材化工厂采石场边坡生态修复工程,论述了高边坡的治理措施：削坡、抗滑桩、挡墙和锚喷,采用种植槽和阶梯复绿法进行绿化,并采取了水利配套措施,取得了良好的经济、生态和社会效益。     

JMD型滤池双层滤料的净水试验及比较

大量的试验数据表明石英砂和陶粒组成的双层滤料，其净水处理性能明显好于石英砂和无烟煤双层滤料以及单层石英砂滤料，特别是出水浊度、微絮凝作用，反冲洗周期、藻类的去除、絮凝剂的使用量等指标上具有明显优势，陶粒做为一种新的水处理滤料，正被应用于净水和污水处理。