UV dosimetry for solar water disinfection (SODIS) carried out in different plastic bottles and bags

UV dosimetry for solar water disinfection (SODIS) carried out in different plastic bottles and bags
复制标题

在不同塑料瓶和塑料袋中进行太阳能水消毒(SODIS)的紫外线剂量测定

DOI:
10.1016/j.snb.2014.11.031
复制
发表时间:
2015
期刊:
Chemical
影响因子:
--
通讯作者:
Lawrie K
Lawrie K
中科院分区:
--
文献类型:
--
作者:
Lawrie K

文献摘要

参考文献

被引文献

相似文献

太阳能水消毒(SODIS)在发展中国家是一种公认的廉价的水消毒手段,但缺乏一个指标来说明其终点。研究SODIS所需的太阳紫外线剂量,以实现低于检测下限的细菌浓度:大肠杆菌、肠球菌属。和产气荚膜梭菌,在聚酯瓶的水中,PE和PE/EVA袋对PE袋的消毒效果最好,所需的太阳紫外线剂量为389kJ/m−2。在消毒实验的同时,在相同的太阳紫外线照射条件下,测试了一系列多金属氧酸盐、半导体光催化和光降解染料基太阳紫外线剂量计指示剂。所有三种类型的剂量计产生的指示器在暴露在389千焦耳−2太阳紫外线下时会大幅和显著地改变颜色;据报道,更多的指示器在较高剂量时会改变颜色,因此适用于所测试的效率较低的SODIS容器。所有测试的指标都是坚固、易用和便宜的,以免大大增加SODIS具有吸引力的低成本。此外,虽然基于半导体光催化剂和光降解染料的指示剂是一次性使用的系统,但基于多金属氧酸盐的指示剂在夜间可在黑暗中恢复颜色,使其能够重复使用,从而进一步降低在实施SODIS方法期间使用指示剂的成本。
Solar water disinfection (SODIS) is a well-established inexpensive means of water disinfection in developing countries, but lacks an indicator to illustrate its end-point. A study of the solar UV dosage required for SODIS, in order to achieve a bacteria concentration below the detection limit for:Escherichia coli,Enterococcusspp. andClostridium perfringens, in water in PET bottles, PE and PE/EVA bags showed disinfection to be most efficient in PE bags, with a solar UV (290–385 nm) dose of 389 kJ m−2required. In parallel to the disinfection experiments, a range of polyoxometalate, semiconductor photocatalysis and photodegradable dye-based solar UV dosimeter indicators were tested under the same solar UV irradiation conditions. All three types of dosimeter produced indicators that largely and significantly change colour upon exposure to 389 kJ m−2solar UV; further indicators are reported which change colour at higher doses and hence would be suitable for the less efficient SODIS containers tested. All indicators tested were robust, easy to use and inexpensive so as not to add significantly to the attractive low cost of SODIS. Furthermore, whilst semiconductor photocatalyst and photodegradable dye based indicators are disposable, one-use systems, the polyoxometalate based indicators recover colour in the dark overnight, allowing them to be reused, and hence further decreasing the cost of using indicators during the implementation of the SODIS method.
使用 TiO2 光降解商业染料 920 DB2
DOI: 10.22401/jnus.19.1.05
发表时间: 2016
期刊: Journal of Al-Nahrain University-Science
影响因子: --
作者:
Amel S. Mahdi
通讯作者: Amel S. Mahdi
DOI: 10.1136/adc.2005.077867
发表时间: 2006-02-01
影响因子: 5.2
作者:
Rose, A;Roy, S;Kang, G
通讯作者: Kang, G
多金属氧酸盐和半导体颗粒光氧化还原性能的比较
DOI: 10.1002/chin.200146273
发表时间: 2001
期刊: ChemInform
影响因子: --
作者:
A. Hiskia;A. Mylonas;E. Papaconstantinou
通讯作者: E. Papaconstantinou
DOI: 10.1093/infdis/27.6.602
发表时间: 1920-01-01
影响因子: 6.4
作者:
Bigelow, WD;Esty, JR
通讯作者: Esty, JR
应用偶氮染料作为增强光催化太阳能消毒的剂量指示剂(ENPHOSODIS)
DOI: 10.1016/j.jphotochem.2010.12.016
发表时间: 2011
影响因子: 4.3
作者:
E. Bandala;L. González;F. D. L. Hoz;M. Pelaez;D. Dionysiou;P. Dunlop;J. Byrne;J. Sánchez
通讯作者: J. Sánchez