Filtration and activated carbon adsorption for water reclamation of oxidation pond effluent | |
| Author | Leung, Nai-ho |
| Call Number | AIT Thesis no. 583 |
| Subject(s) | Water reuse Oxidation Filters and 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 | The high rate oxidation pond has been used to treat domestic wastewater and yield an algae by-product which is harvested from the effluent. A second regrowth pond has been used to regrow algae on the effluent of the first pond, thereby stripping nitrogen components. Activated carbon and filtration were used in this study as unit processes to further treat the stripping pond effluent after its algal harvest. Algal particles were first separated from the stripping pond effluent by a dissolved-air flotation unit. Through the use of a coarse sand roughing filter most of the remaining fine algal particles may be removed and recovered by recycling back the backwash water to the flotation unit. The dissolved organic matter, colors and odors, were adsorbed by using powdered activated carbon. The adsorption was carried out in a mixing-flocculating system. It was found that the powdered activated carbon manufactured from rice husk by the zinc chloride process had promising COD adsorptive capacities and could be flocculated without the addition of coagulant when added to the filtered clarified pond effluent. |
| Year | 1972 |
| 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, 1972 |
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