UNJUK KERJA DAN EFISIENSI IPAL INDUSTRI BATIK CETAK DI MAKAMHAJI, SUKOHARJO DENGAN PROSES BAR SCREEN, SEDIMENTASI, DAN PROSES KOAGULASI-FLOKULASI TERHADAP PENURUNAN PARAMETER COD, BOD DAN LOGAM BERAT Cr

Muljadi Muljadi, Hari Asriyanto

Abstract

Batik industry in general is equipped with the Waste Water Treatment Plant (WWTP) used for wastewater treatment in order not to endanger the environment. Printed batik industry in Makamhaji, Sukoharjo equipped Wastewater Treatment Plant (WWTP) with the bar screen, sedimentation and coagulation-flocculation for wastewater treatment in the process is simple and economical to manufacture.The research objective was to determine the magnitude of performance and efficiency of industrial WWTP batik print with the bar screen, sedimentation, and the process of coagulation - flocculation of the reduction parameters COD, BOD and heavy metals Cr. The method used is an experimental method is to perform experiments on WWTP wastewater treatment industry in the village batik print Butulan Makamhaji Sukoharjo district.Of research that has been made known that the greater efficiency resulting from the units of the performance of the unit means that the better. And obtain maximum efficiency of the reduction parameters of COD, BOD is the bar screen unit for 37.61% and 27.22%. As for the maximum efficiency of the reduction of Cr metal pollutant parameters are in units of coagulationflocculation of 23.66%.

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DOI: https://doi.org/10.20961/ekuilibrium.v10i1.49598

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