1 AIT Asian Institute of Technology

The effects of phosphate-free detergents on the environment

AuthorKittinuch Nanna
Call NumberAIT Thesis no. EV-95-18
Subject(s)Detergent pollution of rivers, lakes, etc.
NoteA thesis submitted in partial fulfillment of the requirments for the degree of Master of Science.
PublisherAsian Institute of Technology
Series StatementThesis ; no. EV-95-18
AbstractThe study was under taken to assess the impact of zeolite, that composed in phosphate-free detergen, on environment. Site of study is the Chao Phraya river within one km. distance where JICA's plan to obstruct the water for water supply for Patum Thani province. Field survey and the laboratory experiment were performed to find out the water consumption, zeolite concentration both soluble and insoluble concentration in wash water and in the river From this study it was found that the water consumption used in this area is 55 L/c/d, the zeolite production is 1.4 g/c/d. The soluble and insoluble zeolite concentration ratios in wash water was found to be 1 :2. The zeolite concentration in the river water, which determined in form of aluminium concentration was 2 g/L. But it could not be said that the total aluminium concentrarion formed in the river water was caused by zeolite. Zeolite can substantially result in increase aluminium to the environment. As a result, obtained the concentration of aluminium in the river water raised up to the toxic range to plants, fish and man. This study suggested that the aluminium concentration in the river water is appoximately 0.2 mg/L. It can be said that the aluminium concentration that existing in the study area can be regarded as harmful if the water is in acid condition.
Year1995
Corresponding Series Added EntryAsian Institute of Technology. Thesis ; no. EV-95-18
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentDepartment of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC))
Academic Program/FoSEnvironmental Engineering (EV)
Chairperson(s)Samorn Muttamara
Examination Committee(s)Umita, Teruyuki;Annachhatre, Ajit P.
Scholarship Donor(s)Electrical Generating Authority of Thailand (Queen Sirikit Project)
DegreeThesis (M. Sc.) - Asian Institute of Technology, 1995


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