measure total coliforms Articles
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An examination of factors affecting sustainability of domestic rainwater harvesting systems in a rural, semi-arid region of Mexico
Rainwater harvesting (RWH) is increasingly utilized today by populations to alleviate water supply issues, particularly in rural, dry environments. Limited research has considered, simultaneously, the numerous factors that contribute to sustainability – for example, social acceptance, water quality, and maintenance needs – of RWH. This research aimed to improve the understanding of factors ...
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A new disinfection system for wastewater treatment: performic acid full-scale trial evaluations
To evaluate the efficiency and effect of a new disinfection technology in wastewater treatment, batch and full-scale experiments were performed between winter 2005 and summer 2011. The system, developed by Kemira Oyj, produces a disinfection solution containing performic acid (PFA) by mixing hydrogen peroxide and formic acid. A preliminary study in batch reactors established the suitability for ...
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Performance of modified design pond sand filters
Two pond sand filters (PSFs) with modified design were constructed in Pathorghata Upazila of Barguna District located in southern Bangladesh. Performance assessment of the PSFs was done after commissioning in terms of quality of filtered water, ease of operation and maintenance, monthly check-up of production capacity/efficiency of the filters, users' participation and acceptability of the ...
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Quality assessment of rooftop runoff and harvested rainwater from a building catchment
A major obstacle to the promotion of rainwater harvesting is chemical and microbiological concerns. To determine its suitability as an alternative water resource, water quality parameters such as pH, turbidity and metal ion concentrations and counted total coliform, Escherichia coli and heterotrophic bacteria were measured. It was observed that the stored rainwater had a neutral average pH and ...
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