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The Leachate Expert Website

Tag Archives | pollution

The Five Best-kept Water Pollution Avoidance Secrets

The Five Best-kept Water Pollution Avoidance Secrets

5 Things You Should Know to Stop Water Pollution

Stop water pollution

This is a free public domain embed info-graphic image which anyone can use on their own website and shows a series of elements of compliance with UK environmental management policies. Waste and factory sites need to follow the route described to evaluate the threats of water pollution from waste facilities or factories, and which can cause an illegal water pollution incident due to a contaminated discharge either to a stream or to underground waters.

Make Sure That You Will Know for Sure If Water Pollution Has Occurred with One of These Water Testers:

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MBT waste processing leachate a waste of money

Leachate Quality from Landfilled MBT Waste and Why MBT is an Unjustified Waste of Money

In a research project completed on behalf of the UK Environment Agency data was collected data and leachates were sampled from EU landfills that had received imports of MSOR (Mechanically Sorted Organic Refuse) and Mechanical Biological Treatment (MBT) wastes, several years ago. The results of the sampling exercise were analysed for, the presence of trace […]

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leachate indicator parameters

The 3 Most Important Leachate Indicator Parameters

There are three very important leachate indicator parameters which are used as indicators to identify leachate contamination in any water sample analysed in a water quality laboratory. These three parameters can give an initial guide to anyone investigating what appears to be pollution occurring in the vicinity of a landfill, as to whether the source […]

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leachate recirculation in a landfill

Leachate Recirculation Practise and Views

To the site operator leachate recirculation would certainly appear like commonsense as some of the leachate recirculated will be taken in by the waste and not re-appear. The leachate will gain some treatment – especially a significant reduction in BOD and COD by anaerobic digestion within a methanogenic landfill. In addition, if leachate is being […]

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What is Leachate?

What is Leachate? Here is some!The purpose of this section of our web site is to inform newcomers about the most common liquid referred to as, leachate – landfill leachate.

This whole web site has been written to answer the question; “What is leachate?” and how to ensure it does not cause pollution, in detail. So, we suggest that byexploring our site further you will find a more comprehensive answer to “What is leachate?, if you need it.

For now, we will give you the most concise answer to the question of what leachate is, by providing our definition of leachate below:

The Definition of Leachate

Leachate is the liquid that drains or ‘leaches’ from a landfill. It varies widely in composition regarding the age of the landfill and the type of waste that it contains. It usually contains both dissolved and suspended material.

In fact the term “leachate” is so often applied to landfill leachate, both within the waste management industry and outside, that it is easy to forget that leachate is the term used for any liquid produced by the action of “leaching”. Leaching occurs when water percolates through any permeable material.

Having Read the Answer to “What is Leachate” Most People Dislike It!

Treated leachate outfallOnce many people have the answer to their first question of; “What is leachate?”, they realize that it is pretty unpleasant stuff (it smells, can cause pollution etc.). Naturally,they often react by saying they would rather it was not produced. “Let’s not have any around here then”, being a common sentiment expressed!

In most temperate and tropical climates, landfills will unavoidably produce some leachate. To stop producing any leachate would in most cases entail sending “zero waste to landfill”. At the present time only a very few (probably less than a dozen) sizeable communities have been able to achieve what is known as “zero waste”. That means, for most of  us that there will still have to be actively operating landfills in our area.

No matter how hard landfill designers and operators try to avoid generating waste, through waste reduction, re-use, recycling, composting. Not to mention the many other methods of waste pre-treatment prior to landfilling. Landfilling will continue for many years yet, and thus leachate generation and its safe disposal without causing pollution, is a problem which is here to stay.

Even if all the landfills could be closed, and the creation of new leachate from rainfall falling on open (operational) landfill phase surfaces, could be stopped today, we would still have to manage the leachate from both the present operational sites,and all the old closed landfills.

There are many thousands of existing operational and closed landfill sites, which will continue to produce leachate for generations. For that reason following good practice in leachate minimisation, collection, treatment and disposal, is a very important part of the job of any landfill operator.