| Author | Chongchai Polprasert |
| Call Number | AIT Thesis no. 1250 |
| Subject(s) | Water--Purification
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand |
| Publisher | Asian Institute of Technology |
| Abstract | Study reported herein was conducted to study the sources and characteristics of a detergent producing factory wastewater, and to evaluate feasible and appropriate treatment methods for this surface active agents waste.
Major sources of wastewaters were wash water from various processes of production. The wastewater flows and characteristics were found to be highly variable on both operation shift cycle and daily basis. The wastewaters studied were discharged through three points and were combined for laboratory study of treatment by selected biological and chemical treatment processes. Biological treatment failed to treat this waste because of high surfactant content, only about 45 percent of COD removal was obtained from both
batch activated sludge process and continuous flow extended aeration process. For chemical treatment, coagulation by alum could achieve more than 80 per
cent on COD removal and the chemically treated sludge showed satisfactory results on settling and dewatering on sand bed. |
| Year | 1977 |
| Type | Thesis |
| School | Student Research Before 1979 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Nguyen, Cong Thanh |
| Examination Committee(s) | Samorn Muttamara |
| Scholarship Donor(s) | Carl Duisberg Gessellschaft |
| Degree | Thesis (M.Eng. ) - Asian Institute of Technology, 1977 |