The use of the Anaerobic Digestion process to treat landfill leachate is not very effective, and this can be readily deduced just by thinking about the processes which leachate undergoes within a landfill. The big problem would be the lack of significant reduction of ammoniacal nitrogen in the discharge.
However, the opposite does work. Leachate treatment plant aerobic reactors can be used very effectively to treat the liquid digestate, if that "product" ends up proving to be unsaleable locally. Indeed, on site aerobic digestate treatment might be essential in these circumstances if no sewage treatment works was available to accept tanker loads of liquid from an AD Plant.
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