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随着工业的发展,环境污染日益严重,已引起人们广泛的关注。法国因空气污染造成的经济损失达到生产总值的1%,荷兰达到2%。我国每年用水量达4770亿吨,其中工业用水368亿吨;排放的工业废水,达268亿吨。由水污染造成的经济损失达434亿元。我国工业废渣量达5.1亿吨,排放的量达3.9亿吨,占地3.9万亩。为此,在1989年通过了中华人民共和国环境保护法,说明了环境保护与污染防治的重要性及必要性。本文就热处理行业在废
With the development of industry, environmental pollution has become increasingly serious, which has aroused widespread concern. The economic losses caused by air pollution in France reached 1% of GDP, while the Netherlands reached 2%. China uses 477 billion tons of water each year, of which 36.8 billion tons of industrial water are consumed and 26.8 billion tons of industrial wastewater are discharged. The economic loss caused by water pollution reached 43.4 billion yuan. China’s industrial waste amounted to 510 million tons, emissions amounted to 390 million tons, covering 39,000 mu. For this reason, the Environmental Protection Law of the People’s Republic of China was passed in 1989, indicating the importance and necessity of environmental protection and pollution prevention and control. This article on the heat treatment industry in waste