An international team of researchers has developed a system that will help Chinese farmers convert massive amounts of pig waste into a renewable source of energy and fertilizer.
The project, led by Australia-based Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), uses
This week I’ve been examining the rare earth materials critical to a host of clean technology applications. The intention is to produce an accurate forecast of rare earth demand from the clean technology industry.
As we’ve talked about before, several rare earth metals with unique chemical and
We are living in a world where high consumption has been relentlessly praised, suggesting that we should buy, consume and dispose more stuff than our grandparents used to do. With some nations consuming more than others, the quality and quantity of waste varies across borders. And so does the way it is managed.
A conventional method for waste management is to dump the waste into designated landfill areas where it is left for years without being monitored. Landfill activity remains the most commonly used organized waste disposal method in the world. It is also the easiest and the cheapest. However, brimful landfill sites, hazardous waste and uncontrolled greenhouse gases cause greater environmental and economical impacts. As a simple example, part of the carbon content of the waste when it is dumped into a landfill site, is emitted into the atmosphere in the form of methane, which has a greenhouse effect 20 times greater than that of CO2.