| Author | Indawati, Lina |
| Call Number | AIT Thesis no.EV-14-18 |
| Subject(s) | Sewage--Purification---Biological treatment
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Environmental Engineering and Management |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. EV-14-18 |
| Abstract | High rate anaerobic processes have been used for the treatment of concentrated municipal and industrial wastewater for over a century. It is difficult to maintain optimum condition between acidogens and acetogens/methanogens at high organic loading rate in single stage anaerobic treatment process. Imbalance between VFAs generation and VFAs consumption lead to instability or failure of anaerobic treatment. In previous study, two-stage is commonly used to solve this problem. Moreover, temperature is important for biological reaction rate of anaerobic process. Operating at high temperature can increase performance of anaerobic process. However, operation at high temperature can reduce Extracellular Polymeric Substance (EPS) and granular formation will be inhibited. This problem can be solved by adding biocarrier. This study focused on the performance of biocarrier thermophilic two-stage anaerobic reactor. The experimental thermophilic condition of two-stage anaerobic reactors were operated at Organic Loading Rate 6 kg COD/m³.d. PVA-gel was used as biocarrier. 30% of biocarrier was added in each conditions of two stage anaerobic reactor. In this study, adding biocarrier in two-stage anaerobic reactor under thermophilic condition improved biokenetic coefficient and biomass growth which had low initial biomass. |
| Year | 2014 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Environmental Engineering and Management (EV) |
| Chairperson(s) | Visvanathan, C.; |
| Examination Committee(s) | Shipin, Oleg V. ;Anal, Anil Kumar; |
| Scholarship Donor(s) | Dual Degree ITS / Directorate General of Higher Education (DIKTI) / Ministry of Education and Culture, Indonesia;Asian Institute of Technology Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2014 |