The Reverse Osmosis process is unique, it alone consistently removes salts (salinity) from leachate, apart from prohibitively energy expensive, physical evaporative methods, so it is an obvious candidate for leachate treatment.

The Reverse Osmosis process is unique, it alone consistently removes salts (salinity) from leachate, apart from prohibitively energy expensive, physical evaporative methods, so it is an obvious candidate for leachate treatment.
This is our Software Help page.
1. Is your software safe to use?
Our software is based upon a proprietory system for compiling the executable files which has been rigorously tested on all windows systems. However, in common with all other software providers, we can never be totally certain that someone may experience a problem while using it. It is safe as far as we can reasonably ascertain, however its use is at the risk of the user, and we accepat no liability. See out Terms of Use. It has also been virus checked and found free of infection.
2. How Do I Run Your Programs?
Simply unpack the zip files into a directory somewhere on your hard drive where you will be able to return to them easily. Once all the files have been “extracted” open the extracted folder and find the file which is listed as a .exe, (executable program) (it may be in the Source-Files folder). Double click on that file to “run” it and the software will open and run, presnting you with the initial window and further instructions appear to take you through using the program.
3. How Do I Install Your Programs?
The beauty of the software we provide is that the programs run without being installed. Just run the executable (.exe) file in the unzipped directory, as described in 2. above.
4. Why Does Windows Tell Me That This Software is an “Undefined Security Risk”
Microsoft is just pointing out that running any executable file brings a risk to your computer in the event that it contained a virus infection or other pernicious code, and you should not be unduly concerned about this for our software, beyond the normal precautions computer users should always take to run up to date anti-virus /security software in the background, on their computers.
We will be adding additional Frequently Asked Questions here, in response to our users queries, as they arise.
If you still have a problem after reading this page, we suggest that you email us with your question, via our Contact page on this blog. We will assist as soon as possible.
“The person who walks with his/her eyes on the stars, is susceptible to the puddles in the road.” We all would like to follow our stars, but at times we need to do some “puddle watching” too! Sometimes we need to know what not to do, what things and actions to avoid, and why…
Be one of the first to buy this fact sheet! It’s the 2nd of a planned series of Leachate Contaminant Fact Files! Our leachate fact sheets are based upon research carried out for the UK Department of Environment in the mid-1990s, updated and presented in bite-sized documents. Designed as reference sources for leachate treatment scientists, regulatory bodies, and interested owners of landfill sites, these Fact Files come complete with a reference list for the original information sources, for those seeking to do further studies into the subject of each Fact File. (In this Fact File we cover a very important water contaminant which has been very controversial, and still does concern very many people.) Although, this Fact File has been specifically created with the leachate management/ water quality specialist in mind, it contains much information which is relevant to the assessment of PCB hazards in any water body, and the environment generally.
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The price of this Fact File will be £15 when the full series is published Just think of the time it would take you to research this information yourself, even if the information was freely available? This is high value, and very specialised, information, at a remarkably low price!
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Landfill leachate invariably contains a host of different substances in addition to the major substances present (COD, BOD, Suspended solids, Metals in solution, Salinity, Ammoniacal nitrogen etc), which although only dissolved in tiny quantities (parts per million (ppm) and parts per billion (ppb)) still may represent a potential hazard to the environment and public health due to their extreme toxicity. To make a distinction between much higher concentrations of the main contaminants which are present in parts per thousand and more, and these lower concentration but much more toxic substances, the term “Trace Contaminants” is applied.
National and international standards have been set for the maximum permissible concentrations of many of these toxic (or “dangerous”) substances in drinking water, and under the EU Groundwater Directive no such substances are in principle permitted to be discharged to groundwater. In the UK these substances are often described as List 1 Substances, however since the creation of that list many more substances and species of contaminants have beeen identified which can now be analysed, and routinely reported upon within the description of “Dangerous Substances” as now applied by the environment Agency (EA).
The first step is to analyse for them. Contact your water quality analytical laboratory and request a list of the subtsances they analyse when asked to complete what are variously called “List1”, “Dangerous Substances”, “or Comprehensive Prescribed List” analysis reports. Before you head off to the landfill to collect the necessary samples you will also need to await a package of special bottles which te analytical laboratory staff will prepare and send to you. Some of the se bottles wil include fixitive chemicals designed to prevent decay of some substances while en-route to the analytical test laboratory.
Most leachates, especially those from older landfills, will show the presence of some of these chemicals. The next step is to decide whether they present a real hazard when the discharge route is taken into account. To do that we are writing and publishing a series of Leachate Contaminant Fact Files, each one of which will discuss the nature of a hazardous substance, or species of substances, and identify research papers written on the contaminant, to assit the reader in deciding whether the presence of the substance is significant and assist them in the decision either to treat the leachate to remove the susbtance, or to make a scientifically based case to the regulatory body or waste water treatment plant operator that negligable risk exists from the dangerous chemical at the concentration seen during water quality analysis.
Our first Leachate Contaminant Fact Files are Now Available. For more information, and purchase for immediate download, please click on the linked text below:
Be one of the first to buy this fact sheet! It’s the first of a planned series of Leachate Contaminant Fact Files! Our leachate fact sheets are based upon research carried out for the UK Department of Environment in the mid-1990s, updated and presented in bite-sized documents. Designed as reference sources for leachate treatment scientists, regulatory bodies, and interested owners of landfill sites, these Fact Files come complete with a reference list for the original information sources, for those seeking to do further studies into the subject of each Fact File. (In this Fact File we cover a very important water contaminant which has been very controversial, and still does concern very many people.) Although, this Fact File has been specifically created with the leachate management/ water quality specialist in mind, it contains much information which is relevant to the assessment of PCB hazards in any water body, and the environment generally.
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The price of this Fact File will be £15 when the full series is published Just think of the time it would take you to research this information yourself, even if the information was freely available? This is high value, and very specialised, information, at a remarkably low price!
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Leachate pumps and pumping technologies currently in use in landfills in the UK, and worldwide, are listed and explained.
The processes which have been consistently successfully applied, for muncipal waste landfill leachate from controlled landfills, are biological nitrification processes designed by specialist leachate process designers.
Leachate extraction embraces landfill site wells and boreholes, pumping systems, plus pipelines, leachate monitoring and control systems.
Rain falling on the top of the landfill is the main contributor to the generation of leachate, and is by far the largest contributor for modern sanitary landfills which do not accept liquid waste. In old unlined and un-engineered landfills, some leachate is produced from groundwater entering the waste. Some, additional leachate volume is produced during waste decomposition, and some additional surface water will sometimes run onto waste from its surroundings.
The decomposition of carbonaceous material produces some additional water, and a wide range of other materials including methane, carbon dioxide and a complex mixture of organic acids, aldehydes, alcohols and simple sugars, which dissolve in the leachate cocktail.
The precipitation percolates through the waste and takes in dissolved and suspended components from the biodegrading waste, through physical and chemical reactions.
The environmental risks of leachate generation arise from it escaping into the environment around landfills, particularly to watercourses and groundwater. These risks can be mitigated by properly designed and engineered landfill sites. Such sites are those that are constructed on geologically impermeable materials or sites that use impermeable liners made of geotextiles or engineered clay . The use of linings is now mandatory within both the United States and the European Union, except where the waste closely controlled and genuinely inert.
Most toxic and difficult materials are now specifically excluded from landfill. However, despite much stricter statutory controls the leachates from modern sites are currently stronger than ever. They also contain a huge range of contaminants. In fact, anything soluble in the waste disposed will enter the leachate. Within the lists of substaces present in leachate are very low concentrations of “trace contaminants” which can have quite strongly contaminating effects. These are nowadays most often derived from materials in household and domestic retail products which enter the waste stream perfectly legally.
Unfortunately, the leachate draining from most landfills will continue to reflect the contaminants of past years, when regulatory controls were less.
These substances in include extremely low concentrations of heavy metals (for example from batteries), herbicides and pesticides (as used in gardens), etc. However, leachate is becoming less contaminated with difficult substances as time goes forward, and public awareness, recycling and increased statutory control over these substances, throughout the industrialized world is making leachate less harmful in this respect.
The concern about environmental damage from waste leachate, largely arises from its high organic contaminant concentrations and much higher ammoniacal nitrogen than commonly found in any other organic effluent. Pathogenic microorganisms and toxic substances that might be present in it have in the past been described as the most important. However, pathogenic organism counts reduce rapidly with time in the landfill, so this only applies to the youngest leachate and leachate is seldom removed from the landfill in this condition.
One of the most comprehensive scientific studies yet undertaken worldwide on leachate, was published by the United Kingdom, DOE., in 1995. It is titled: “A review of the composition of leachate from domestic wastes in landfill sites”; Department of Environment Research Report No. CWM 07294, and still provides much essential data on the range of contaminands present in Municipal Solid Waste, and Commercial and Industrial Waste landfill leachate.
New!
Leachate ContaminantFact Files Nos. 1 & 2 are now available.
Contaminants Found in Leachate: No. 1 - POLYCHLORINATED BIPHENYLS (PCBs)
Find out more. Click here.
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