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61.
62.
高静 《石油化工环境保护》2006,29(4):31-34
采用生物曝气滤池+超滤的方式对石化企业外排污水进行深度处理,以达到回用于循环冷却水系统的目的。阐述了生物曝气滤池及超滤的主要工艺特点和主要工艺流程,并分析了项目实施后取得的经济效益及环境效益。 相似文献
63.
MBR在中水回用领域的工程应用研究 总被引:6,自引:0,他引:6
MBR(膜生物反应器 )作为一种新型的污水处理工艺 ,在生活污水处理领域得到了广泛的应用 ,某培训中心的生活污水的中水回用采用此种工艺 ,通过合理地设计运行参数 ,系统运行稳定 ,出水水质好于《沈阳市中水水质标准》 ,可在多种场合进行回用。 相似文献
64.
本文主要介绍在当前时代背景下,我国城市污水处理回用现状,同时探讨在当前状态下城市污水处理回用的未来发展态势。 相似文献
65.
青岛石化厂污水回用情况探讨及对策 总被引:1,自引:0,他引:1
王风林 《石油化工环境保护》2005,28(2):24-27,39
针对青岛石化厂污水处理场改扩建工程污水深度处理设施及回用情况进行了说明,并提出建议。 相似文献
66.
沈阳市污水处理与资源化利用 总被引:2,自引:0,他引:2
研究沈阳市污水资源利用的可行性 ,论述了污水深度处理技术 ,提出中水回用系统建设方案 ,并进行环境和经济效益分析。 相似文献
67.
68.
Greywater from baths, showers and washbasins was collected separately from all other domestic wastewater at a university block
of flats with a dual reticulation system and analysed for a range of contaminants including indicator organisms and pathogens.
Greywater flow and temperature were also monitored and a diurnal variation was observed. Physical and chemical water quality
parameters were similar to previously published data, although measured COD and BOD levels appeared to be lower, possibly
due to settlement or biodegradation in the storage tanks. Plate counts and indicator organism concentrations were consistently
high suggesting a high level of human bacterial contamination necessitating biological treatment and disinfection if the water
is to be used for recycling. However, these high levels of indicator organisms did not correlate to pathogen presence and
should not be used as pathogen indicators in greywater. One positive count of Salmonella veltereden was observed as well as low levels of Giardia. Cryptosporidium, Escherichia coli O157:H7, enteroviruses and Legionella were not identified in any of the samples. The research also highlighted a number of
problems with the complexity of this type of sampling programme, such as identifying the most likely time to isolate pathogens
and analysing an ‘unusual’ water source. 相似文献
69.
Chaggu E Mashauri D van Buuren J Sanders W Lettinga G 《Environmental management》2002,30(5):0609-0620
The sociocultural and socioeconomic situation of sanitation in Dar-es-Salaam (Dsm), Tanzania, was studied with explicit emphasis
on pit-latrines. Without considering the sociocultural conditions, the so-called best solution might not be the right one.
Therefore, in order to achieve the intended goal, a literature review, a questionnaire survey, and personal visits to the
chosen study areas were done. In total, 207 household questionnaires were filled in 16 areas of the city. Interviewers did
house-to-house visits and questionnaires were filled out on the spot. Results indicated that the city population is about
3.8 million at present, with over 80% of the dwellers using pit-latrines; some 3% use septic tanks with soakage pits, about
6% are connected to the sewerage system, and 1% have no excreta disposal facility. Difficulties faced include dismal budget
allocations, fragmentation of sanitation activities among subsectors, lack of or poor sanitation record keeping, unsatisfactory
machinery for septic tank and pit-latrine emptying, lack of a clear policy on pit-latrine handling and, in competition for
resources, low priority is accorded to an excreta disposal system among the people. City residents will continue to use the
pit-latrines for a long time to come. Reusing the fecal sludge is not known by most city dwellers and is influenced by sociocultural
habits. To prevent groundwater pollution and to recover useful products in human excreta and urine, ecological sanitation
toilets and anaerobic digesters offer a good option. 相似文献
70.
水处理中含铁废料综合利用的研究进展 总被引:11,自引:1,他引:11
回顾了20余年来我国在水处理中综合利用含铁废料的研究进展,分别评述了副产品硫酸亚铁制备絮凝剂PFS的各种方法,废铁屑运用于内电解法水处理和其他含铁泥渣,废酸在水处理中的研究和应用现状,指出含铁废料综合利用中有待于进一步研究的若干问题。 相似文献