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membrane bioreactor

How a Membrane Bioreactor is Used to Treat Landfill Leachate

In principle, a membrane bioreactor combines biological treatment with a separation process using microfiltration membranes. A Membrane Bioreactor consists of a reactor tank and a microfiltration unit. In the reactor, the micro-organisms (mostly bacteria) transform dissolved polluted matter into biomass, and ammoniacal nitrogen (“ammonia”) into nitrate. Thus biodegradable organic pollutants are eliminated by the bioreactor […]

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Trace Contaminants Found in Leachate: Fact Files for You to Download

£d Image of Fact file ebook coverIf you have a problem with a substance found in leachate, we are here to help you! Our fact files, which are based on publicly published UK government research, are unique. You can save huge amounts of time hunting down this information which is otherwise spread very widely in published papers in libraries and on research databases, and is only partially accessible from the web.

What Are Trace Contaminants?

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).

How Does a Person Tasked With Deciding Whether a Leachate Contains Significant Quantities of Trace Contaminants Find Out About Them?

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.

OK. So the Analytical Report Showed Some Dangerous Chemicals to be Present at Trace Concentrations. Does it matter? What Now?

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:

£d Image of Fact file ebook cover Leachate Trace Contaminant Fact File 1 – PCBs

Leachate Trace Contaminant Fact File 2 -Phenols

Privacy

PRIVACY POLICY FOR www.leachate.co.uk

This privacy policy sets out how “www.leachate.co.uk” uses and protects any information that you give “www.leachate.co.uk” when you use this website.

“www.leachate.co.uk” is committed to ensuring that your privacy is protected. Should we ask you to provide certain information by which you can be identified when using this website, then you can be assured that it will only be used in accordance with this privacy statement.

“www.leachate.co.uk” may change this policy from time to time by updating this page. You should check this page from time to time to ensure that you are happy with any changes. This policy is effective from 16 January 2011.

WHAT WE COLLECT

We may collect the following information:

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What we do with the information we gather.

We require this information to understand your needs and provide you with a better service, and in particular for the following reasons:

Internal record keeping.

We may use the information to improve our products and services.

We may periodically send promotional email about new products, special offers or other information which we think you may find interesting using the email address which you have provided.

From time to time, we may also use your information to contact you for market research purposes. We may contact you by email, phone, fax or mail.

We may use the information to customize the website according to your interests.

SECURITY

We are committed to ensuring that your information is secure. In order to prevent unauthorized access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect online.
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We use traffic log cookies to identify which pages are being used. This helps us analyze data about web page traffic and improve our website in order to tailor it to customer needs. We only use this information for statistical analysis purposes and then the data is removed from the system.

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Our website may contain links to enable you to visit other websites of interest easily. However, once you have used these links to leave our site, you should note that we do not have any control over that other website. Therefore, we cannot be responsible for the protection and privacy of any information which you provide whilst visiting such sites and such sites are not governed by this privacy statement. You should exercise caution and look at the privacy statement applicable to the website in question.

YOUR PERSONAL INFORMATION

We will not sell, distribute or lease your personal information to third parties unless we have your permission or are required by law. We may use your personal information to send you promotional information about third parties which we think you may find interesting if you tell us that you wish this to happen.

You may request details of personal information which we hold about you under the Data Protection Act 1998. A small fee will be payable. If you would like a copy of the information held on you please send an email to To contact us please visit our “Contact” page, and use the email from provided..

If you believe that any information we are holding on you is incorrect or incomplete, please write to or email us as soon as possible, at the above address. We will promptly correct any information found to be incorrect.

GOOGLE ADSENSE AND THE DOUBLECLICK DART COOKIE

Google, as a third party advertisement vendor, uses cookies to serve ads on this site. The use of DART cookies by Google enables them to serve adverts to visitors that are based on their visits to this website as well as other sites on the internet.

To opt out of the DART cookies you may visit the Google ad and content network privacy policy at the following url http://www.google.com/privacy_ads.html Tracking of users through the DART cookie mechanisms are subject to Google’s own privacy policies.

Other Third Party ad servers or ad networks may also use cookies to track users activities on this website to measure advertisement effectiveness and other reasons that will be provided in their own privacy policies, www.leachate.co.uk has no access or control over these cookies that may be used by third party advertisers.

QUESTIONS, COMMENTS, OR REPORT OF INCIDENTS

You may direct questions, comments or reports to:

To contact us please visit our “Contact” page, and use the email from provided.

REVISIONS TO THIS PRIVACY POLICY WITHOUT NOTICE

This Privacy Policy is dynamic. It will continually change. You may not assume that it remains the same and you agree to check the policy each time you visit the site for changes. Unless, in the sole opinion of the website, this policy changes so drastically as to suggest a posted notification on the site or via email, you will receive no notification of changes to this Privacy Policy nor, under any circumstances, does this site promise notification. Your continued use of this site always evidences your acceptance of the terms this Privacy Policy or any modifications.

LATEST UPDATE

This Privacy Policy was last updated on: 16 January 2011

Terms of Use

TERMS OF USE FOR www.leachate.co.uk

Welcome to www.leachate.co.uk. If you continue to browse and use this website you are agreeing to comply with and be bound by the following terms and conditions of use, which together with our privacy policy govern www.leachate.co.uk’s relationship with you in relation to this website.

The term “www.leachate.co.uk” or “us” or “we” refers to the owner of the website. The term “you” refers to the user or viewer of our website.

The use of this website is subject to the following terms of use:

ALL PERSONS UNDER THE AGE OF 18 ARE DENIED ACCESS TO THIS WEBSITE. IF YOU ARE UNDER 18 YEARS OF AGE, IT IS UNLAWFUL FOR YOU TO VISIT, READ, OR INTERACT WITH THIS WEBSITE OR ITS CONTENTS IN ANY MANNER. THIS WEBSITE SPECIFICALLY DENIES ACCESS TO ANY INDIVIDUAL THAT IS COVERED BY THE CHILD ONLINE PRIVACY ACT (COPA) OF 1998.

The content of the pages of this website is for your general information and use only. It is subject to change without notice.

Neither we nor any third parties provide any warranty or guarantee as to the accuracy, timeliness, performance, completeness or suitability of the information and materials found or offered on this website for any particular purpose. You acknowledge that such information and materials may contain inaccuracies or errors and we expressly exclude liability for any such inaccuracies or errors to the fullest extent permitted by law.

Your use of any information or materials on this website is entirely at your own risk, for which we shall not be liable. It shall be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.

This website contains material which is owned by or licensed to us. This material includes, but is not limited to, the design, layout, look, appearance and graphics. Reproduction is prohibited other than in accordance with the copyright notice, which forms part of these terms and conditions.

All trademarks reproduced in this website, which are not the property of, or licensed to the operator, are acknowledged on the website.

Unauthorized use of this website may give to a claim for damages and/or be a criminal offence.

From time to time this website may also include links to other websites. These links are provided for your convenience to provide further information. They do not signify that we endorse the website(s). We have no responsibility for the content of the linked website(s).

Your use of this website and any dispute arising out of such use of the website is subject to the laws of England.

REVISIONS TO THIS WEBSITE TERMS OF USE WITHOUT NOTICE

This TERMS OF USE for www.leachate.co.uk is dynamic. It will continually change. You may not assume that it remains the same and you agree to check the policy each time you visit the site for changes. Unless, in the sole opinion of the website, this policy changes so drastically as to suggest a posted notification on the site or via email, you will receive no notification of changes to this TERMS AND CONDITIONS for www.leachate.co.uk nor, under any circumstances, does this site promise notification. Your continued use of this site always evidences your acceptance of the TERMS AND CONDITIONS for www.leachate.co.uk or any modifications.

CONTACT INFORMATION

To contact us please visit our “Contact” page, and use the email from provided.

LATEST UPDATE

This TERMS OF USE for www.leachate.co.uk was last updated on: 16 January 2011