利用碱性水溶液,通过开展淋洗作业,将土壤中氰化物富集到水溶液中,然后利用碱性氯化法单独处理含氰废水,结果表明,淋洗作业可使土壤中氰化物含量由36.16 mg/kg降至6.38 mg/kg,含氰废水在漂白粉用量为12 g/L,pH值为12.5,反应时间为1h条件下,其中所含氰化物由49.47 mg/L降至0.301 mg/L.%By spraying,the cyanide in soil was enriched into alkaline water solution,and then water containing cyanide was treated by the alkaline chlorination.The result showed that the content of cyanide in soil could decrease from 36.16 mg/kg to 6.38 mg/kg,and the content of cyanide in alkaline water solution could reduce from 49.47 mg/L to 0.301 mg/L for 1 hour under the condition of the dosage of chlorinated lime of 12 g/L,pH value of 12.5.
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