Abstract
Abstract This paper outlines development of a procedure for the selection of the most appropriate leachate treatment method(s) for a given leachate. The performance of aerobic biological, anaerobic biological and physical-chemical leachate treatment are discussed, based on the BOD5/COD ratio and the molecular weight of the organics in the leachate. An initial level of treatment selection screening, which is based on the BOD5/COD ratio, the molecular weight of the organics, and the volatile fatty acid (VFA), ammonia and metal concentrations is presented. Subsequent, separate decision models for anaerobic biological, aerobic biological and physical chemical treatment are also presented. It is shown that there is no one solution to leachate treatment but that a combination of anaerobic biological, aerobic biological and physical chemical treatment will be needed.
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