If leachate from municipal waste landfills needs to be treated, how is this best done?
A. The simplest method if the site is near a suitable foul sewer is to discharge to the public sewer, and the leachate will be treated at a sewage treatment works. Alternatively, leachate must be tankered by road vehicle to a sewage treatment works. However, haulage costs make tankerage a costly option for most sites in anything but the lowest volumes, or short-term. Of course, care must be taken not to discharge any hazardous or odour producing chemicals to sewer and thus pre-treatment is frequently necessary before discharging leachate to a sewer.
