铬毒零排放及资源完全利用新方法，是处理金属铬和铬盐生产过程中排放的废渣。
A complete utilization new method of zero discharging chromium poison and resource is used to process the waste residue which is discharged in metal chromium and chromium salt producing process.
毫无节制地将毒气、毒烟和有毒物质排放到空气和河流中引发了许多环境和社会问题。
Unlicensed emission of toxic gases, fumes and discharge into air and rivers has caused a great deal of environmental and social problems.
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