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KCP Environmental Services Ltd

GUZZLER NEWS - January 2008

HAPPY NEW YEAR! BEST WISHES FOR 2008!!

We hope you had a great Christmas and are set for 2008. We have included in this months newsletter some new innovative ways to assist in your maintenance programmes.

Hopefully this will be some light reading before you settle back to work.

Solutions
As promised we mentioned an option that we have available for tackling higher leachate levels. Often wells that have silt problems also have inherent leachate level issues. Removal of large quantities of leachate is time consuming and not particularly cost effective for relatively small deposits. At least once the silt is removed pumps can be installed and a monitoring programme can be implemented.

This challenge has allowed us to apply some basic theory to create a suction system that enables deep silt problems to be extracted without the initial pumping of potentially high leachate levels.

Application of this method in various well diameters has been successful. Placement within the ring -of suction and air -clears the immediate suction area of leachate allowing the pump to concentrate on the silt deposits. This addresses the clients needs particularly where high leachate levels are not the main issue but the silt is preventing optimum performance of pumps.

CCTV - What do you want to know?

failed well

Straightforward leachate dips to viewing underdrainage lysimeters to deep sideslope riser construction details - recording visual information provides a fantastic platform for reviewing and re-engineering any site infrastructure.

The latest P571 Atex approved CCTV unit provides a safe mechanism for doing so on landfill sites. Our many applications have identified a number of potential issues that allows our clients to make proactive decisions. We provide a DVD compatible DVD imaging as well as a report in order that information is always readily accessible.

One of the most common and most frequent modes of damage noted is failure of the HDPE/Twinwall pipework within the chamber designs. This is always apparent as poor surround or wrong material for construction based upon the modes of failure identified.

Going - Going - Gone

Failure of wells is extremely common, applying technology to maintain these can and does improve the long term financial issues.

Recent CCTV surveying has identified early signs of failure of pipework and poor construction details. Still many view leachate manholes/MP etc as an excuse ' to put in any old thing' or the extremists who design chambers that would be stable at the height of the Empire State Building!!

Obviously there is a compromise for each specific proposed use of a well. However the old saying of ' the foolish man built his house upon the sand' rings true with many of the surveys that we have undertaken. These wells and siderisers could be the source of a wealth of information about the waste as well as saviours in the event of challenges. This would incur a small cost element at construction stage but this should be in proportion to their longevity.

The bulk of the failures can be attributed to the wrong application of pipework and inadequate surround and the modes of failure back this up.

With technology so advanced a 10% cost saving on the average cell drainage ( renewable materials?) could provide a cell with an additional 4 to 5 wells.

Failures of wells are more common than most would like to believe!

We would like to wish you all a very healthy and prosperous 2008.

Best wishes from all at KCP

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