Along with the development of human beings society and production construction

the problems of population

resources and ecological environment get more and more contradictory one another. Shanxi Province is one of the energy resources and heavy chemical industrial bases in China. For many yeasr

the waste solids and waste piles have been discarded at random during mining

constructing of traffic and electric power project

etc. It has damaged the vegetation and water resources

and has made a new serius loss of water and soil. Thus

the life of the people and the realization of four modernizations as well might be effected and endangered directly. At present

a lot of factories

mines have begun to pay attention to treat the waste piles and solids

and adopted engineering and biological measures to conserve soil and water. Synthetic utilization of waste piles and solids has gotten valuable experiences.