Abstract: The Small Industrial Environment (SIE) of leather in Magetan Regency is a center of leather tanning that aims to meet market needs for the leather. However, the process of leather tanning production causes various environmental problems, especially on water quality. Water quality issues affect the lives around them, hence the water must be processed at the Wastewater Treatment Plant (WWTP). This research aims to examine the quality of wastewater as the impact from SIE of leather in Magetan Regency with the level parameters of biological oxygen demand (BOD5), chemical oxygen demand (COD), oil and fat, chromium (Cr), total suspended solid (TSS), and total ammonia (NH3-N). This was a quantitative research and the water quality data were taken through random sampling.............
Keywords: wastewater quality, small industrial environment of leather..
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