English

The Food and Agriculture Organization of the United Nations has just issues a discussion document reporting on on-farm composting. Composting is an attractive proposition for turning on-farm organic waste materials into a farm resource. However, farmers in many parts of the world, and especially in developing countries, are unable to …

The UK National Health Service (NHS) maternity services are promoting disposable nappies by default, undermining the Government’s waste strategy and denying parents a fair choice, according to the pressure group the Womens Environmental network (WEN). Defra (The Department of the Environment) has a target of converting 155,000 households to real …

Urgent international assistance is needed to help small island states deal with a rising tide of rubbish and wastes. Studies by the United Nations Environment Programme (UNEP) indicate that along with issues including rising sea levels, over-fishing, water shortages and inadequate sanitation services, waste is fast becoming another key problem. …

Solid waste managers take in the world’s undesirables every day, but in doing so, a potential bomb – chromated copper arsenate (CCA)-treated wood – is waiting to drop on the industry. In approximately 15 years, the amount of CCA-treated wood headed for disposal is expected to peak. And like an …

Solid waste wood is typically not considered to be an important recyclable commodity. However, for decades, wood residues from primary timber processing facilities have been made into usable products. Nearly all particleboard produced in the United States, for example, is made from such residues. Wooden pallets, once destined for landfills …

The Ridge Landfill, owned by Canadian Waste Services Inc., is one of the most important landfill assets in Canada. Sitting near Chatham, Ontario on the much-traveled commercial corridor between Windsor/Detroit and Ontario cities to the east, the facility receives a significant amount of industrial, commercial and institutional (IC&I) waste from …

Compared to steel and paper — which have been recovered for recycling for years — plastics recycling is a relatively young industry. Plastics have only been recycled for about 10 to 15 years. Regardless, a lot has been accomplished in this time, especially with homogeneous streams of bottles made from …

Compost is produced through the recycling of organic materials. Food scraps, leaves and yard trimmings, paper, wood, manures and the remains of agricultural crops can be transformed into compost through composting. Compost is a valuable soil amendment. It has a high organic matter content and helps return to the soil …

LNG production requires recovery of pure CH4 from LFG. Additional CO2 must be removed from clean methane product after CO2 WashT (B) to prevent solid CO2 formation during methane liquefaction. Two Air Liquide (MEDAL), membranes connected in series and operating at 200 psig reduce the CO2 concentration from 30% to …

The Halifax Regional Municipality (HRM) in Nova Scotia took a giant leap in 1998 to reaching a 50 percent diversion goal by 2000. Between July and November, 1998, organics collection carts were distributed to almost 100,000 households in the region. In December, two new composting facilities designed to process those …