Tannery wastes.
D000332:Aerobiosis; D000693:Anaerobiosis; D002498:Centrifugation; D002857:Chromium; D007220:Industrial Waste; D012498:Sanitary Engineering; D013633:Tanning; D014876:Water Pollution; D014877:Water Pollution, Chemical
D007220:Industrial Waste; D002857:Chromium