Researchers have developed an efficient water jigging method that recovers concrete aggregates from construction and demolition waste (CDW) with 99 % purity and an 80 % recovery rate, offering a ...

A new method for cleaning metallurgical coal to verify coal quality for coke making could replace a widely-used chemical-based process leading to a more accurate assessment of the economic viability ...

A new method of testing exploration coal samples could not only be less harmful to the environment, it could also result in a more accurate assessment of how economically viable coal projects are. The ...