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Where does tanning wastewater originate?
Depending on the different stages of leather tanning (preparation, tanning, and finishing), tanning wastewater sources can be broadly categorized into three types: 1. In the preparatory stage, wastewater mainly originates from washing, soaking, hair removal, liming, deliming, softening, and degreasing; the main pollutants include organic waste, inorganic waste, and organic
12/26/2025
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