Treatment of Chromium Contaminated Soil Using Bioremediation

被引：8
作者：
Purwanti, Ipung Fitri [1 ]
Putri, Tesya Paramita [1 ]
Kurniawan, Setyo Budi [1 ]
机构：
[1] Inst Teknol Sepuluh Nopember, Dept Environm Engn, Fac Civil Engn & Planning, Surabaya, Indonesia
来源：
3RD INTERNATIONAL CONFERENCE ON CONSTRUCTION AND BUILDING ENGINEERING (ICONBUILD 2017) | 2017年 / 1903卷
关键词：
REMEDIATION; GROWTH; WASTE;
D O I：
10.1063/1.5011527
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Chromium contamination in soil occurs due to the disposal of chromium industrial wastewater or sludge that excess the quality standard. Chromium concentration in soil is ranged between 1 to 300 mg/kg while the maximum health standard is 2.5 mg/kg. Bioremediation is one of technology that could be used for remediating heavy metal contamination in soil. Bacteria have an ability to remove heavy metal from soil. One bacteria species that capable to remove chromium from soil is Bacillus subtilis. The aim of this research was to know the chromium removal percentage in contaminated soil by Bacillus subtilis. Artificial chromium contaminated soil was used by mixing 425gram sand and chromium trichloride solution. Concentration of chromium added into the spiked soil were 50, 75, and 100 mg/L. During 14 days, pH, soil temperature and soil moisture were tested. Initial and final number of bacterial colony and chromium concentration analysed. The result showed that the highest percentage of chromium removal was 11% at a chromium concentration of 75 mg/L.
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页数：7
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