共查询到19条相似文献,搜索用时 125 毫秒
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本文围绕我国《城市给排水紫外线消毒设备》(GB-T19837-2005)中对紫外线消毒设备输出有效剂量的规定,结合紫外线消毒原理和现有微生物检测方法的分析,介绍了在紫外线消毒设备的设计、选取和应用中依据紫外线消毒设备所能实现的紫外线有效剂量即生物验定剂量的必要性,及生物验定剂量认证报告需体现的内容。 相似文献
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阐述了污水消毒的必要性,消毒已成为污水回用技术中必须的处理单元,介绍了液氯、二氧化氯、臭氧、紫外线消毒等各种污水消毒技术的消毒原理及优缺点,指出了紫外线消毒技术将会取代化学消毒在给排水处理中得到广泛应用。 相似文献
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城镇污水消毒技术探讨 总被引:1,自引:0,他引:1
通过对液氯消毒、紫外线消毒、二氧化氯消毒等常见的城镇污水处理消毒技术的原理、效果、副作用、经济性等方面进行综合比较,得出紫外线消毒技术在污水消毒中具有明显优势,必将在污水消毒领域得到更加广泛的应用。 相似文献
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明渠水下照射式紫外线消毒系统的设计 总被引:3,自引:0,他引:3
针对常用的明渠水下照射式污水紫外线消毒系统的设计,探讨了明渠水下照射式污水紫外线消毒系统的紫外灯型式的选择、紫外剂量的确定方法以及设计流量的确定,介绍了消毒明渠及其水位控制器的设计方法。 相似文献
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About 35 years ago the island of Jersey in the Channel Islands set about rationalizing and modernizing its sewage-treatment operations. Treatment was carried out in one central, advanced sewagetreatment works producing a Royal Commission effluent which received nominal dilution in a small stream before discharging into the sea in one of the foremost bathing areas on the island.
In 1989, a thorough investigation was carried out on the options to secure an environmentally acceptable solution to effluent disposal. The investigation concluded that disinfection, in combination with a change to the outfall discharge point, offered the most cost-effective solution. Alternative disinfection techniques were identified, which recognized the nature and sensitivity of the receiving waters and the limited space available on the site. Only ultraviolet disinfection was suitable.
An ultraviolet disinfection system depends on the exposure of the micro-organisms causing disease to their germicidal wavelength. Light of this wavelength (about 253.7 nanometres) is absorbed by the nucleic acids in the cell which damages or rearranges the genetic information, effectively rendering the cell unable to replicate and resulting in the death of the cell.
In over 300 installations in North America the system has proven to be reliable, simple, economic and, above all, environmentally acceptable.
An ultraviolet disinfection system is currently being installed at Bellozanne, Jersey. 相似文献
In 1989, a thorough investigation was carried out on the options to secure an environmentally acceptable solution to effluent disposal. The investigation concluded that disinfection, in combination with a change to the outfall discharge point, offered the most cost-effective solution. Alternative disinfection techniques were identified, which recognized the nature and sensitivity of the receiving waters and the limited space available on the site. Only ultraviolet disinfection was suitable.
An ultraviolet disinfection system depends on the exposure of the micro-organisms causing disease to their germicidal wavelength. Light of this wavelength (about 253.7 nanometres) is absorbed by the nucleic acids in the cell which damages or rearranges the genetic information, effectively rendering the cell unable to replicate and resulting in the death of the cell.
In over 300 installations in North America the system has proven to be reliable, simple, economic and, above all, environmentally acceptable.
An ultraviolet disinfection system is currently being installed at Bellozanne, Jersey. 相似文献
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介绍了二氧化氯水处理原理和特点,并就消毒的效果、使用范围、建设费用、用地等方面与液氯、臭氧、紫外线作了比较,说明二氧化氯是一种新型高效多功能的水处理消毒剂。 相似文献
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紫外线消毒在污水处理中的应用 总被引:2,自引:0,他引:2
为了保护好水环境,阐述了城市污水消毒的必要性和标准要求,分析比较了紫外线消毒与传统加氯消毒的优缺点.展示了紫外线消毒在城市污水处理中的应用前景。 相似文献
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对生活饮用水中常用的几种消毒方法进行了介绍,讨论了液氯、二氧化氯、氯胺和紫外线消毒工艺的原理、优点、缺点及影响因素,以指导相关人员合理选择消毒工艺,保障饮水安全。 相似文献
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N. A. Klimenko I. R. Kozyatnik L. A. Savchina I. V. Pavlikovskaya T. L. Vrubel’ 《Journal of Water Chemistry and Technology》2009,31(6):405-409
Bioaccessibility of total organic carbon is an important factor affecting water quality in distribution systems of water supply.
We have investigated the content of biologically accessible organic carbon in several types of waters (river, artesian, tap,
and model) and its change in the course of water treatment by different methods. It has been shown that neither the Dnieper
River water after coagulation-settlement-filtration nor the tap water do not meet the criteria of biological stability. Only
after add-on treatment on a carbon filter and disinfection with ultraviolet biologically accessible carbon in it is absent. 相似文献