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(一)随着工业生产的发展,工业固体废弃物越来越多。这些固体废弃物与污水、废气一样污染着环境,威胁着人类的生存和发展,已成为当今社会令人苦恼的重大问题之一。据城乡建设环境保护部统计,我国每年大约有4亿3千万吨工业废渣。这些固体废渣历年堆积已占地59万亩,污染农田25万亩。还有500余万吨煤灰、尾煤等直
(A) With the development of industrial production, more and more industrial solid waste is being produced. These solid wastes, like sewage and exhaust gas, pollute the environment and threaten the survival and development of mankind, have become one of the most annoying and major problems in our society today. According to statistics by the Ministry of Environmental Protection of Urban and Rural Construction, there are about 430 million tons of industrial waste residue each year in our country. Over the years these solid waste accumulation has an area of 590000 acres, 250000 acres of contaminated farmland. There are more than 500 million tons of coal ash, coal and other straight tail