Characteristics, stability, and utilization of sulfuric natural water from Sebau East Lombok in reducing dissolved metals

This paper aims to characterize and test the stability of sulfuric natural water (SNW) from Sebau East Lombok as a sulfidation agent for several dissolved metals (Mn, Cu, Pb Fe). The parameters used SNW characterization are temperature, pH, DO, BOD, COD, TSS, TDS. sample was divided into two categories, namely with preservation treatment without preservation, study SNW. determined by observing in both samples at storage time 5, 10, 15 20 days reacting them metals. had reduced sulphide levels day 1 20, ranging 59.24 mg/L 17.70 mg/L, whereas decreased concentration 52.46 9.56 mg/L. Furthermore, has relatively superior metal reduction ratio than preservation. maximum value deposition Mn obtained on fifth 57.60%, 83.45% 91.87% Pb. trend is not applicable Fe, highest (87.23%) the15th day's storage.