无锡太湖新城污水处理厂升级改造工程调试运行

无锡市太湖新城污水处理厂升级改造工程中采用了微絮凝过滤工艺,分析了该污水处理厂调试运行过程中出现的一些问题,并针对这些问题采用了一系列解决措施。监测数据表明,该工艺运行稳定可靠,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准。     

城镇污水处理厂MBR工程调试运行及分析

介绍了无锡市城北污水处理厂四期工程的设计概况和所采用的MBR工艺的情况,总结了相关MBR工艺调试的经验。监测数据表明,该工艺运行稳定可靠,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,实现了污水处理厂的正常运行。     

林州市污水处理厂升级改造工程设计

在林州市污水处理厂升级改造工程中,针对低温污水,调整了曝气方式,并将原奥贝尔氧化沟工艺改造成A~2/O工艺,同时增加了三级深度处理单元,改造后出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。介绍了该污水处理厂改造前后的处理工艺、设计参数和运行情况,可为同类污水处理厂的升级改造提供参考。     

印染企业集聚区综合污水厂升级改造工程的设计及运行

介绍了湖州市某印染企业集聚区综合污水处理厂的升级改造工程概况,综合分析了调试运行效果,并针对调试中出现的一些问题给出相应的解决措施.该污水厂升级改造工程采用了水解酸化-A/O-混凝沉淀工艺,运行数据表明,该工艺运行稳定可靠,出水水质能稳定达到<城镇污水处理厂污染物排放标准>(GB 18918-2002)的一级B标准.     

深圳市盐田污水处理厂调试

介绍了深圳市盐田污水处理厂的工艺概况和调试过程。该工程各构筑物、设备皆能够正常运行，出水水质全面稳定达到国家二级污水处理厂一级标准。     

淮安市某开发区污水处理厂一期工程设计与运行

淮安市某开发区污水处理厂一期工程设计规模为4×104m3/d,采用一级强化处理/CAST工艺,主要接纳开发区内的生活污水和工业废水。从2009年1月—12月的运行数据来看,出水水质稳定达到了《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级B标准。详细介绍了工艺设计及运行情况,并总结了该工程工艺设计的特点及存在的问题。     

倒置A2/O 工艺在城镇污水处理厂中的应用

本文结合工程实例,通过介绍污水处理厂存在的一些问题,重点探讨了倒置A2/O工艺在城镇污水处理厂的设计及运行情况。实际运行结果表明,改造后的倒置A2/O工艺满足污水处理的要求,出水稳定达到GB18918-2002《城镇污水处理厂污染物排放标准》的一级A标准。     

后置缺氧A~2O/A-MBR工艺脱氮除磷特性研究

介绍了太湖流域某城镇污水处理厂采用的A2O/A-MBR工艺及该工艺的主要特点。通过对污水处理厂的运行情况进行分析,研究了该工艺脱氮除磷的降解特性。监测数据表明,该工艺运行稳定可靠,出水水质稳定,达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)中的一级A排放标准,增加后置缺氧段的A2O/A-MBR工艺强化了脱氮除磷效果,对NH3-N、TN和TP的去除率分别为98.0%、78.8%和94.4%,并具有较强的耐冲击负荷能力。     

柘城县污水处理厂升级改造工程设计

在柘城县污水处理厂升级改造工程中,增加了厌氧池、絮凝沉淀池和纤维转盘滤池,并对原生化工艺进行了技术改造,改造后污水处理厂出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。介绍了该污水处理厂改造前、后的处理工艺、设计参数和运行情况,可为同类污水处理厂的升级改造提供参考。     

山东省某工业园污水处理厂改扩建工程设计

山东省某工业园污水处理厂原设计采用厌氧滤池+氧化沟工艺,出水水质执行《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A标准。由于该污水厂已超负荷运行,且进水水质不稳定、原设计存在不合理处等原因,导致污水处理厂出水水质不能稳定达标,需进行改扩建。改扩建工程采用了初沉池+A~2O+二沉池+混凝沉淀+纤维转盘滤池工艺,出水水质稳定达标。     

浅析高速公路工程招投标中的最低评标价法

结合目前高速公路施工项目招投标活动的实际情况,阐述了最低评标价法的概念,归纳了其优点及存在问题,对完善最低评标价法提出几点策略,以期促进招标投标市场更加规范有序。     

Place-Making in Megaprojects in Melbourne

This article analyses state-led place-making practices in Melbourne. The two levels of government that influence planning in Melbourne make much of the city as ‘culturally vibrant’ and ‘creative’, and have incorporated creative city-inspired place-making principles into many layers of the planning system. An examination of the development of two mixed-use megaprojects in central Melbourne reveals however that ideals of culturally engaging public places, and indeed of creative landscapes for middle-class consumption, wither in the face of more basic imperatives for economic development. In these case studies the ‘creative city’, no matter how the idea is interpreted, has little traction either as a set of inclusive place-making principles or as a gentrification strategy. The article concludes that the creative city-inspired place-making objectives in the planning system at both state and local levels are ambiguous in their overall intents and completely unsupported by statutory controls. Such place-making objectives as are realised are the compromised results of the interplay of uncoordinated decisions, delivered at the pleasure of the developer.     

Pathogens in septage in Vietnam

Septage is widely acknowledged as a major source of infectious pathogens while disposal of septage, and the operation and maintenance of septic tanks, is not regulated in many developing countries. Twenty untreated septage and septage sludge samples were taken from Can Tho City, Vietnam to examine their pathogen content, and indicator micro-organisms. Escherichia coli and Enterococcus spp. were detected in all samples, regardless of sludge storage time. Phages were detected in 80% of samples. Salmonella spp. were detected in 70% of the untreated septage and 60% of septage sludge samples. Concentrations of phages and bacteria tested in septage sludge after many years of tank storage were much higher than the expected levels. Helminth ova were present in 95% of untreated septage samples with an average of 450 ova l^− 1, and were detected in all septage sludge samples with an average of 16,000 ova l^− 1. Twelve varieties of helminth ova were identified. More helminth ova varieties in higher concentrations were found in septage than those reported from stool samples. The varieties' frequency ranged from 10% to 50% and Ascaris lumbricoides predominated. Results show that pathogens and indicator micro-organisms, especially helminth ova, accumulate in sludge. Thus helminth ova should be considered when septage sludge is treated and used for agriculture. Proper health protection measures must be applied for people handling septage.     

在市场中实践在实践中学习在学习中进步--工程公司市场化进程的回顾与展望

近两年来，工程公司在提高市场竞争意识、推动市场化进程中做了大量工作，其中坚持走出去的方针是我们自我加压、推行加快市场化步伐的一个重要战略步骤。     

新时期广东城市化的新特点

新时期广东城市化出现以下特点:知识源导向、城市由单体向群体化发展、产业集群推动、政府主导自上而下的集约化发展、城镇化向城市化转变、由重“数量”发展向重“质量”发展的转变。     

新形势下高校强化基建财务管理的探讨

在市场条件下高校基建财务人员在加强日常财务管理的同时,必须树立起高度的工作责任心,抓好事前监督、事中监督、事后监督三个环节,全面理解、贯彻执行《高等学校财务制度》,管好用好各项基本建设资金,提高基建财务管理水平,更好地完成高校各项基建任务,以有限的投资,最快的建设速度,获得最大的投资效益。     

2005年北京办公物业市场七大趋势

趋势一:CBD区域写字楼集中放量从各区域规划方案上看,CBD区域多数项目在03～04年处于项目的报批手续及拆阶段,预计2005年正式推向市场,因此2005年CBD区域将成为北京市场供应集中的域,区域即将供应的项目有北京财富中心(二期)、金地国际花园、万达广场、SOHO尚都、万通中心、世纪财富中心、怡禾国际中心、光华国际等。除去未知项目,2005CBD写字楼办公面积的供应量为60万平方米左右。中关村区域经过一段时间的集中供后开始逐步放缓,2005年供应的体量相对较大的项目有中关村金融中心、新中关。金街区域可能开盘的项目只有2个:英蓝国际中…     

浅谈我国工程项目建设成本控制存在的问题

结合目前我国施工企业工程项目成本管理现状,对工程项目成本管理过程中存在的问题进行了较详细的分析,并提出了一些解决问题的办法,以做好项目成本控制工作,进而增强企业经济实力。     

Variation in property taxation in Tulsa

Conclusions It may be reasonably concluded from this study that the range of variation in these ratios of assessed to actual value are of a reasonable size for the great majority of cases. The frequency distribution of these sample ratios was not normal, however, as was assumed a process of this type would produce. On the other hand, the failure of the regression analysis to identify any significant variables which would explain these variations would tend to re-enforce the assumption that the fluctuations were indeed of a random nature.To sum it up in one paragraph, aside from a few extreme cases, the assessing process appears to give estimates which are more consistent than would be expected under the assumption that any errors would be of a random nature, but the regression analysis was unable to isolate any particular socioeconomic characteristics which would explain the variation which was present.Financial support for this research project was furnished by the University of Tulsa.