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我厂丙烯腈装置原设计排出含氰污水16～18吨/时。由于污水中含有氢氰酸(HCN)、丙烯腈(AN)、乙腈(ACN)和丙烯醛(ACL)等剧毒物质,易造成环境污染。第一次试车之后,我们采用了污水循环工艺,从1972年11月第二次开工后,污水排量下降到3～5吨/时,相应节约新鲜水12～13吨/时,1973年底,建成一座大型污水燃烧炉,将排放的污水及副产粗乙腈、氢氰酸全
I plant acrylonitrile plant designed to discharge 16 to 18 tons of cyanide-containing water / hour. As the sewage contains hydrocyanic acid (HCN), acrylonitrile (AN), acetonitrile (ACN) and acrolein (ACL) and other highly toxic substances, can easily lead to environmental pollution. After the first test run, we adopted a sewage recycling process. After the second start-up in November 1972, the sewage discharge dropped to 3 to 5 tons / hour, saving 12 to 13 tons / hour of fresh water. By the end of 1973, Built a large-scale sewage combustion furnace, the sewage and by-product of crude acetonitrile, hydrogen cyanide all