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Publication Metadata only Detection of arsenite-oxidizing bacteria in groundwater with low arsenic concentration in Rayong province, Thailand(2018-08-14) Phurinat Pipattanajaroenkul; Prinpida Sonthiphand; Supeerapat Kraidech; Satika Boonkaewwan; Srilert Chotpantarat; Chulalongkorn University; Mahidol University© The Authors, published by EDP Sciences, 2018. As contamination in groundwater has become one of the global problems. It has been reported that million people around the world get adverse effects on their health by direct and indirect... As-contaminated groundwater consumption. In groundwater, the most abundant As species are arsenite (As3+) and arsenate (As5+). Arsenite is more toxic and mobile than arsenate. Consequently, arsenite oxidation is considered as an important process in groundwaterPublication Metadata only Reduction of DBP precursors and their THMFPs in leachate contaminated groundwater by PAC adsorption(2017-07-31) Kanlayanee Yimyam; Aunnop Wongrueng; Pharkphum Rakruam; Saoharit Nitayavardhana; Athit Phetrak; Suthida Theepharaksapan; Suraphong Wattanachira; Chiang Mai University; Mahidol University; Srinakharinwirot Universitycontaminated groundwater around an inactive open-dumping landfill was selected as the raw water. The PAC adsorption reaction was proven to be the pseudo second order kinetic reaction and the Freundlich isotherm. The dissolved organic carbon (DOC), dissolvedPublication Metadata only Modified cesspool system with upflow sludge tank and low-cost photobioreactor treating blackwater(2017-10-01) Nawatch Surinkul; Thammarat Koottatep; Chawalit Chaiwong; Tippawan Singhopon; Mahidol University; Asian Institute of Technology Thailandin unsatisfactory effluent quality. Effluent or liquid from cesspool system normally seeps into surrounding soil in turn causes groundwater contamination. In this modification, blackwater was treated by a series of upflow sludge tank, photobioreactor and cesspool