文章基本信息

标题：Chlorpyrifos removal by Thiobacillus sp. and Clostridium sp. in liquid medium
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作者：Thalia Sunaryo ; Hilarion Widyatmoko ; Astri Rinanti 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2018
卷号：197
DOI：10.1051/matecconf/201819713012
语种：English
出版社：EDP Sciences
摘要：The bioremediation research of chlorpyrifos has been done to remove the concentration of chlorphyrifos using the natural bacterial Thiobacillus sp. and Clostridium sp.. The efficiency of chlorpyrifos removal was determined by the temperature and contact time. The research was done by adding 100 ppm of chlorpyrifos into the Stone Mineral Salt solution (SMSs) under controlled condition, then each bacterial are added as much as 10% (v/v) with pH 7. To obtain optimum efficiency, this study was conducted with temperature variation (°C) 25, 30, 35, 40 and contact time (hours) 12, 24, 36, 48. Based on Gas Chromatography Mass Spektrofotometer (GC-MS) analysis, the efficiency of removal at temperature (°C) 25, 30, 35, 40 are 43%, 68%, 71% and 52% respectively, while the removal efficiency at contact time (hours) 12, 24, 36, 48 are 43%, 49%, 74%, and 36%. The result showed that 74% removal efficiency by Thiobacillus sp. and Clostridium sp. obtained at 35°C in 36 hours of contact time. Thus, the mixed culture of Thiobacillus sp. and Clostridium sp. are able to synergize for removing the chlorpyrifos at 100 ppm.