Kajian penggunaan gambut, serasah hutan, serasah bakau dan tanah landfill sebagai bahan pengisi biofilter untuk gas H2S

Abstract

Peat, top sod of mangrove, forest and landfill-soil have been used as organic packing material of biofilter because of their nutrients content and their endogenous microorganisms that being expected to be able lo reduce H2S gas. Wi n g the application period, each packing material, has occurred on maintaining of pH and water content, and temperature increasing in sulfate concentration and the growth of microorganisms. The operational biofilters packed with peat, top soil of mangrove, forest and landfill are 12, 13, 19 and 25 days, respectively. The maximum complete removal of sulfur by biofilters of peat, top soil of mangrove, forest and landfill are 10, 15.5,18.5, 22.0 g-S/ kg-dry might material, respectively. In peat biofilter, pH decreased from 3.50 to 3.00, water content decreased from 55 to 51 %, and sulfate concentration increased from 0.5 to 5.0 mg/g-material. In mangrove-soil biofilter, pH decreased from 4.75 to 4.0, water content performed about 60-63%, and sulfate concentration increased from 0.69 lo 7.81 mg/g-dry material forest-soil biofilter, pH decreased from 5.0 to 4.0, water content decreased from 48 to 39 % and sulfate concentration increased from 0.50 to 18.54 mg/g-dry material. In landfill-soil biofilter. pH was declining from 8.0 to 5.0, water content was decreasing from 37 % to 30% and sulfate concentration was increasing from 7.62 to 24.10 mg/g-dry material.