Renewable fuel recovered from bio-conversion of solid wastes with and without acid hydrolysis | |
| Author | Chan, Kai-king |
| Call Number | AIT Thesis no. 837 |
| Subject(s) | Water reuse Sewage sludge Sewage disposal |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science of the Asian Institute of Technology, Bangkok, Thailand. |
| Publisher | Asian Institute of Technology |
| Abstract | A potential solution or compromise both to fossil energy depletion and increasing solid wastes disposal problems is the application of anaerobic fermentation process to the solid wastes from which methane gas is derived. Unlike the traditional anaerobic digestion of sludge practicing in waster water treatment plant, organic wastes are acid and heat hydrolyzed before feeding into the anaerobic digester. The degradability of such wastes, quantity and quality of gas production, effects of different waste concentration, COD reduction, detention time and other anaerobic control parameters are evaluated in laboratory batch systems. Thickened secondary sludge and poultry wastes were adopted consecutively to illustrate the efficiency of the hydrolysis process on the anaerobic fermentation, each with control experiments (without acid pretreatment) being conducted at the same time. On the whole, higher COD removal and shorter detention time for the system with hydrolysis process applied beforehand than in the conventional digestion of comparable waste concentration in each type of waste. Unfortunately, there is not enough data to determine the maximum specific gas production rate which is found to lie below 2000 mg/l bio-degradable COD for both sludge and poultry wastes, either in hydrolyzed or non-hydrolyzed feed mode. |
| Year | 1975 |
| Type | Thesis |
| School | Student Research Before 1980 |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Thesis (Year <=1979) |
| Chairperson(s) | Yang, Yi Ping |
| Examination Committee(s) | Pescod, M.B. ; Htun, Maung Nay ; Samorn Muttamara |
| Scholarship Donor(s) | Mr. John L. Marden |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 1975 |