The re-circulation systems we design incorporate innovative irrigation technology which will ensure even dispersal of liquid at controlled rates, thus avoiding localised saturation. This technology will alleviate or completely eliminate many of the foregoing issues.

We can design the re-circulation system dispersal or emitter pipe to be laid in any configuration to suit the shape and size of a cell. The system can be installed at any level during the land filling operation. We recommend the system be laid in trenches excavated into the waste before capping or it can be covered with a final layer of waste.

The benefits of effective leachate re-circulation are well known:

• Reduced leachate disposal costs
• Increased gas production
• Improved leachate treatability, e.g. high BOD leachate can be recirculated into methanogenic waste to accelerate reduction in BOD
• Consistent leachate quality for treatment
• Reduced need for storage
• Accelerated settlement
• Prevents local saturation
• Very cost-effective to install
• Will SAVE money!