Reclamation of potable water from high rate oxidation pond effluent | |
| Author | Munsin Tuntoolavest |
| Call Number | AIT Thesis no. 508 |
| Subject(s) | Water--Purification--Filtration Oxidation Water--Purification--Filtration |
| 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 | Further treatment of oxidation pond effluent to meet potable water quality requirements can render it usable as a drinking water supply. This study pertained to the development of advanced waste treatment of oxidation pond effluent. The processes used to reduce levels of chemical oxygen demand, nitrogen, pathogenic bacteria colour and other undesirable matters included dissolved air flotation, lime treatment, countercurrent air-ammonia stripping recarbonization and stabilization, dual and mixed media filtration, activated carbon adsorption polishing and break point chlorination. It was observed that ammonia stripping was requisite in view of the levels of ammonia in the pond effluent. Ninety per cent removal efficiencies were achieved by the countercurrent stripping technique. Recarbonation, stabilization followed by dual media filtration reduced turbidity levels to below 0.2 JTU. Activated carbon polished the effluent reducing chemical oxygen demands to below 3 mg/l with no organic nitrogen being observed in the effluent. Breakpoint chlorination reduced ammonia levels to 0.1 mg/land coliforms to less than 2 MPN per 100 ml. Cost of potable water reclamation were estimated to be well below those of drinking water ·production by desalination. The effluent water met the drinking water quality requirements of the World Health Organization. |
| Year | 1971 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | McGarry, M.G. |
| Scholarship Donor(s) | Asian Institute of Technology |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 1971 |
 | |