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在开展环境保护工作中,国家虽然也强调了“变废为宝”的精神,但人们还是习惯于对有害物质的防治这一方面,而常常忽略或不注意“化害为利”。我国有色冶金工业中砷的回收还不到10％即属此例。须知,国际上每吨白砷的价格较铅、锌贵两倍以上,比铝还高。目前,每年进入我国冶炼厂的砷量有6000吨之多,如把砷的回收率提高到50％,就相当于1万吨精锌的价值。因此,在防止砷污染的同时,注意对砷的回收利用,既保护了环境,又可获得厚利,两全其美,何乐而不为?
In carrying out environmental protection work, although the state has also emphasized the “turning waste into treasure” spirit, people are still accustomed to the prevention and control of harmful substances in this respect, and often ignore or do not pay attention to “harm”. China’s non-ferrous metallurgy industry arsenic recovery less than 10% is the case. Notice, the international price per ton of white arsenic than lead, zinc more than twice as expensive than aluminum. At present, the amount of arsenic entering China’s smelters is as much as 6,000 tons every year. If the recovery rate of arsenic is increased to 50%, it is equivalent to the value of 10,000 tons of refined zinc. Therefore, while preventing the pollution of arsenic, we should pay attention to the recycling of arsenic, which not only protects the environment but also enables us to get the best of both worlds. Why not?