Leachate drainage layers are necessary in most waste landfill sites to minimise the accumulation of leachate within the site and they reduce the risk of contamination of surrounding ground and groundwater. A cheaper and environmentally preferable option is be the use of scrap vehicle tyres, but is their use permissible and what happens to them [...]

Dense Asphaltic Concrete has been as a Landfill Lining membrane material for many years and although it is not commonly seen in the UK, it is used much more often in Europe, and particularly in Germany. The Dense Asphaltic Concrete is formulated in a manner which ensures both very low permeability and possibly as low as 1 x [...]

Dense Asphaltic Concrete can be an extremely versatile product, suitable for many types of applications. The ancient civilizations of Egypt, Babylon and Assyria all used bituminous lining materials and mortars for waterproofing and building, some more than 5,000 years ago, and many examples of their work remains intact even today. More recently with the advances in hydraulic technology, asphalt [...]

Current landfill site practice in response to the requirements of the Waste Regulations (UK) is to minimise leachate generation. To achieve this the operator fills the site, in a series of phases or cells which are raised as rapidly as input rates will allow to the top of the landfill, within small constrained areas, to [...]

Although the following topic is not directly a landfill CQA issue we thought that it would be of real interest to many of our readers. Compulsory site waste management plans (SWMPs) for construction projects over £300,000 in value, have been a legal requirement in England since April 2008, and are therefore needed for landfill works contracts. The [...]

The use of a Geosynthetic Clay Liner (GCL) as the low permeability layer in landfill lining systems and restoration caps can provide a cost effective and readily Construction Quality Controlled alternative to natural clay. In fact this material may be the only option in regions where the local geology is such that no clay of [...]

SITA Cornwall  News (January 2008) - reports: Improvement in compliance… Landfill SITA Cornwall’s two landfill sites play an important role in managing the county’s waste. A great deal of work was carried out in 2007 at the landfills and even more is planned for 2008. It was a busy year in terms of engineering at United Mines [...]

In the design of municipal landfill leachate collection systems, some state regulatory agencies require carbonate content of leachate collection system aggregate not to exceed 15 percent by weight. This requirement comes from a legitimate concern about the possibility of aggregate degradation, or loss of mass due to contact with leachate. Most involved in landfill design and [...]

New MC3000 rolled out Magpie Drilling has continued its expansion with a further MC3000 added to the drilling rig fleet. Following the increase in customer demand for deeper, larger diameter wells, with temporary and permanent steel casings, the need for increased power, higher torque, and superior depth capabilities are paramount. The new machine has an extra rod [...]

Retaining Wall System Combining Sheet Piling and Geogrid Reinforcements Now Available from Northstar Vinyl Products, LLC and Tensar International The new AquaTerra™ system combines sheet piling and geogrid reinforcements, offering considerable benefits to slope stabilization, marine and levee repair projects. Atlanta, GA (PRWEB) December 2, 2007 - Northstar Vinyl Products, LLC (http://www.northstarvinyl.com/) and Tensar International recently unveiled [...]