Bioreactor landfills promoted by leachate recirculation: A full-scale study [microform]
- Bib ID:
- 3283913
- Format:
- Book and Microform
- Author:
- Yuen, Samuel T. S
- Description:
- 435 p.
- ISBN:
- 0599506482
- Summary:
-
The concept of bioreactor landfills has certainly gained a lot of attention in the past decade. Its advantages over the conventional "dry tomb" landfills are well demonstrated by many laboratory tests and pilot-scale studies. However, there is still further full-scale research work required before we can truly translate this concept into everyday practical operations. Aiming to bridge this gap, an experiment has been conducted in the Lyndhurst Landfill, Victoria, Australia. This thesis covers: (i) The experimental implementation of a full-scale bioreactor landfill cell (stimulated by leachate recirculation) to quantify the stabilisation of waste in terms of leachate quality, gas composition and production, waste temperature, and landfill settlement.
(ii) The evaluation of leachate recirculation system performance and moisture flow mechanism in municipal solid waste. (iii) The study of water balance in the full-scale experimental cell to identify the significance of various water components for the purpose of leachate management. (iv) The development of an in-situ technique for measurement of moisture in municipal solid waste for the hydrological investigations in (ii) and (iii) above. As pointed out in a literature review, the research committed to hydrological aspects of bioreactor landfills has been very limited compared to the work that has been done in biodegradation enhancement. The hydrological component of this thesis helps to address this shortcoming.
The most important finding of this thesis is that a full-scale landfill is extremely heterogeneous, a feature that tends to be misrepresented by small-scale experiments. It is for this important reason that small-scale results in many cases could not be reproduced in full-scale landfills. This vital point is clearly demonstrated by the thesis both in the hydrological investigation and in the stabilisation indicator monitoring. According to the findings of this thesis, undoubtedly the most urgent need is to improve the current technique of leachate recirculation. Given the heterogeneous nature of landfills, it would be practically difficult to achieve a uniform moisture distribution throughout the waste mass. Nevertheless, this is the area that future research focus should be directed.
- Notes:
-
- (UnM)AAI9948381
- Source: Dissertation Abstracts International, Volume: 60-10, Section: B, page: 5187.
- Chair: Graham Hutchinson.
- Thesis (Ph.D.)--University of Melbourne (Australia), 1999.
- Reproduction:
- Microfiche. Ann Arbor, Mich.: University Microfilms International.
- Subject:
- Other authors/contributors:
- University of Melbourne (Australia)
- Copyright:
-
In Copyright
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Copyright status was determined using the following information:
- Material type:
- Literary Dramatic Musical
- Published status:
- Unpublished
- Creation date:
- 1999
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