Assessment of aeration and leachate recirculation in open cell landfill operation with leachate management strategies | |
| Author | Khim Nora |
| Call Number | AIT Thesis no.EV-07-19 |
| Subject(s) | Leachate Refuse and refuse disposal Landfill gases |
| 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-07-19 |
| Abstract | The main purpose of this study is to improve the open dumping site practices and environmental pollution control for sustainable landfilling in correlation with the Asian tropical climate. Four landfill lysimeters located at AIT research station were operated in different operating conditions (open cell landfill, open cell landfill combine with leachate recirculation, open cell landfill combine with aeration and leachate recirculation and conventional landfill). The leachate generation, leachate characteristics and settlement variation of MSW were monitored. Aeration and leachate recirculation operation was introduced to enhance biodegradable and faster settlement in Open Cell no 3 and only leachate recirculation was done in Open cell no 2. After five months of operation period, the specific cumulative load of COD, BOD, DOC, TKN, NH₃ - N, Org - N and TN from Open Cell No.1, 2, 3 and Conventional Landfill were COD :1,294; 7,535; 7,369 and 1,461 mg/kg , BOD : 930; 5,211; 4,387 and 926 mg/kg, DOC : 410; 1,361; 1,187 and 391 mg/kg, TKN : 195; 795; 652 and 167 mg/kg, NH3 - N : 135; 633; 547 and 124 mg/kg, Org - N : 58; 163; 109 and 48 mg/kg, TN :191; 698, 399 and 163 mg/kg solid waste, respectively. The faster settlement was observed in Open Cell No.3 (Leachate recirculation with aeration) than Open Cell No.2, No. 1 and Conventional Landfill. The Open Cell No.2 (213 L) and Open Cell no.3 (201 L) had lower leachate remaining compared with Open Cell No.1(300L) and Conventional Landfill (250L). Similarly, concentration of pollutants in leachate in Open cell no. 3 (with aeration and- leachate recirculation) showed the lower values compared to the others lysimeters without aeration and leachate recirculation. The operation of open cell landfill by combining aeration and leachate recirculation. showed increased quantity of leachate generation and faster the level of solid waste settlement. Water management in open cell landfill lysimeters by storage, evaporation and leachate recycling is a good option. |
| Year | 2007 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. EV-07-19 |
| 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 (EV) |
| Chairperson(s) | Yisvanathan, C.; |
| Examination Committee(s) | Preeda Parkpian;Glawe, U.; |
| Scholarship Donor(s) | Belgian Technical Cooperation (BTC); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2007 |