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PENYISIHAN KONSENTRASI TIMBAL (Pb) MENGGUNAKAN ADSORBENT ABU ENDAPAN BATU BARA (STUDI KASUS : AIR LIMBAH INDUSTRI PERCETAKAN SEMARANG)

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METANA
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Abstract

Abstract Offset industries produced waste water contained lead contaminant and had pollution potential for environment. One of method to remove waste water contained lead was used bottom ash as adsorbent. This research was to know the ability of bottom ash to reduce lead in artificial waste water with concentration of lead was 20.64 mg/l in the batch and continuous processes. For the batch processes, bottom ash was used as independent variable of 0, 1, 3, 5, and 7 weight gram and highest removal efficiency up to 72.09-90.84%. While in continuous process experimental used column with diameter of 2 inch, discharge of 760 ml/minute, and influent concentration of 15 mg/l, 20mg/1, and 25 mg/l. Highest efficiency of removing lead was 73%-92.93%. With velocity constanst was 0.416-0.490 ml/mg. Second while operational capacity was 0.069-0.081 mg/g. Keywords:offset, adsorption, waste water, lead, coal bottom ash

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