Navigation Links
Putting a green cap on garbage dumps
Date:11/24/2008

Landfill sites produce the greenhouse gases, methane and carbon dioxide, as putrescible waste decays. Growing plants and trees on top of a landfill, a process known as 'Phytocapping', could reduce the production and release of these gases, according to Australian scientists writing in a forthcoming issue of International Journal of Environmental Technology and Management.

Despite legislative pressures to reduce landfill use, in certain parts of the world it remains the most economical and simplest method of waste disposal.

Biodegradation of organic matter in a landfill site occurs most rapidly when water comes into contact with the buried waste, explains Kartik Venkatraman and Nanjappa Ashwath of the Department of Molecular and Life Sciences, at Central Queensland University (CQU), Rockhampton, Australia. They point out that conventional approaches to reducing this effect involve placing compacted clay over the top of a landfill to form a cap that minimizes percolation of water into the landfill.

Some sites do not attempt to prevent water percolation and biodegradation and instead install gas collection systems to trap the methane released.

The use of clay capping has generally proved ineffective in trials in the USA, the researchers say. The problem being that in arid regions the clay cap dries out and cracks allowing water to easily percolate into the landfill. Equally problematic, methane gas collection is an inordinately expensive option for many Australian landfills that do not reach the methane production threshold to enable efficiency.

Hence, a new technique, known as phytocapping, which involves placing a layer of top soil and growing dense vegetation on top of a landfill, was successfully trailed at Rockhampton's Lakes Creek Landfill not far from Central Queensland University. This research was conducted by Kartik Venkatraman and Nanjappa Ashwath (CQU) in conjunction with the Rockhampton Regional Cou
'/>"/>

Contact: Kartik Venkatraman
k.venkatraman@cqu.edu.au
Inderscience Publishers
Source:Eurekalert

Page: 1 2

Related biology news :

1. Department of Energy putting power in the hands of consumers through technology
2. Putting stem cell research on the fast track
3. Duke study pinpoints potential green collar job growth in US
4. MIT: Safe storage of greenhouse-gas carbon dioxide
5. MIT analysis shows how cap-and-trade plans can cut greenhouse emissions
6. Parasite-resistant peppers green alternatives to chemical pesticides
7. Expert recommends town councils to design low-allergy impact green spaces
8. A green future for scrap iron
9. What is really happening to the Greenland icecap?
10. Potent greenhouse gas more prevalent in atmosphere than previously assumed
11. Green tea may delay onset of type 1 diabetes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/31/2015)... 2015   Guidepoint , a leading global research ... Pain Management TRACKER, part of the Guidepoint TRACKER ... the medical device and therapeutics markets. The Post-Surgical Pain ... volumes, market share, and adoption rates across three major ... surgery. The Post-Surgical Pain Management TRACKER will ...
(Date:3/26/2015)... , March 26, 2015 ... family, social, recreation and athletic club, today announced it ... to allow freedom of movement for members and staff, ... "Following a comprehensive process, we selected FST,s IMID Access ... and convenience for our members and staff, in addition ...
(Date:3/24/2015)... ( http://www.researchandmarkets.com/research/kvdtcw/face_and_voice ) has announced the addition of the ... report to their offering. This report analyzes the worldwide ... following Segments: Face Biometrics, and Voice Biometrics. The report provides separate ... Japan , Europe , ... Africa , and Latin America . ...
Breaking Biology News(10 mins):Guidepoint Launches Post-Surgical Pain Management TRACKER 2Guidepoint Launches Post-Surgical Pain Management TRACKER 3Granite Club First Private Club in North America to Implement FST Biometrics Secure Access Solution, as Part of Multi-million Dollar Expansion 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 2Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 3Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 4Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 5Face and Voice Biometrics - Global Strategic Business Report 2015: Face Recognition Gains Prominence in Immigration Control 6
... by a particular enzyme to modify bacterial chromosome chemistry, ... new kind of drug that could stop virulent bacterial ... in the May 6 issue of the journal Cell. ... enzyme called Dam (DNA adenine methyltransferase) plays a role ...
... that can survive encounters with specific immune system cells ... cells, known as neutrophils, dictate whether our immune system ... the research was released today online in The Journal ... Laboratories (RML), part of the National Institute of Allergy ...
... the field of human embryonic stem cell research receives ... also exploring the potential of adult stem cells for ... adult stem cell research isn't fraught with the controversies ... extremely difficult to isolate and then to multiply in ...
Cached Biology News:Scientists take aim at virulent bacteria by decoding machinery of key control enzyme 2Scientists reveal how disease bacterium survives inside immune system cell 2Scientists reveal how disease bacterium survives inside immune system cell 3Researchers discover mechanism for multiplying adult stem cells 2
(Date:4/28/2015)... Showcasing continued leadership in the ... company that provides scientifically advanced, age-defying products, has ... Selling Association (DSA) by the DSA Board of ... period, the DSA confirmed that Nerium’s business practices ... the association: to ensure that direct sales consumers ...
(Date:4/28/2015)... 2015  DanDrit Biotech USA , ... for the treatment of colorectal cancer, is pleased to ... with GISCAD Foundation, a highly recognized Italian group with ... The collaboration relates to VIVA, a Phase III adjuvant ... of disease (NED) Stage IV colorectal cancer (CRC). The ...
(Date:4/28/2015)... 2015  US-Australian drug discovery company, Novogen Limited (ASX: ... a letter from NASDAQ informing it that it had ... Rule). In November 2014, the Company ... to submit a plan to regain compliance with the ... $2,500,000 in stockholders, equity as of June 30, 2014; ...
(Date:4/28/2015)... Calverton, Maryland (PRWEB) April 28, 2015 ... Data Warehouse that bring it to the web ... visualization features and user friendly reporting metrics increase ... save reports for convenient recall and access “on-the-go” ... Warehouse was built using client feedback to assist ...
Breaking Biology Technology:Nerium International Receives Direct Selling Association Membership 2Nerium International Receives Direct Selling Association Membership 3DanDrit Biotech USA, Inc. Announces Final Collaboration Agreement with the GISCAD Foundation 2DanDrit Biotech USA, Inc. Announces Final Collaboration Agreement with the GISCAD Foundation 3DanDrit Biotech USA, Inc. Announces Final Collaboration Agreement with the GISCAD Foundation 4Novogen Regains Full Compliance with NASDAQ Listing Rule 2Novogen Regains Full Compliance with NASDAQ Listing Rule 3
... Continues to ... Broaden Product Portfolio, WAYNE, Pa., Feb. 14 ... fiscal second quarter and,six months ended December 31, 2007., For ... the Company,s Drew, Vascular and Escalon Digital Solutions (EMI),business units, which ...
... PALO ALTO, Calif., Feb. 14 CV Therapeutics,Inc. ... accordance with Nasdaq,marketplace rule 4350, the Company issued ... due to additional hiring, primarily in,connection with its ... inducement stock options cover an aggregate 119,200 shares ...
... WASHINGTON, Feb. 14 As part of ... create a pathway for,FDA approval of safe and ... features a footprint in the snow stating: "Don,t ... highlights how meaningful biogenerics legislation should be,balanced to ...
Cached Biology Technology:Escalon(R) Reports Second Quarter Fiscal 2008 Results 2Escalon(R) Reports Second Quarter Fiscal 2008 Results 3Escalon(R) Reports Second Quarter Fiscal 2008 Results 4Escalon(R) Reports Second Quarter Fiscal 2008 Results 5Escalon(R) Reports Second Quarter Fiscal 2008 Results 6Escalon(R) Reports Second Quarter Fiscal 2008 Results 7Escalon(R) Reports Second Quarter Fiscal 2008 Results 8CV Therapeutics Reports Option Grants Under Nasdaq Marketplace Rule 4350 2