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All Journal Journal of Degraded and Mining Lands Management Agro Bali: Agricultural Journal
Syahri, Yolanda Fitria
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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Combining biochar with sediment in the treatment for the effectiveness of sulfate and heavy metal Pb reduction of acid mine drainage Fahruddin, Fahruddin; Syahri, Yolanda Fitria; Fauziah, St.; Samawi, Muhammad Farid; Johannes, Eva; Tambaru, Elis; Tuwo, Mustika; Abdullah, As’adi
Journal of Degraded and Mining Lands Management Vol. 11 No. 4 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.114.6329

Abstract

The increasing mining activities have led to the problem of acid mine drainage (AMD) pollution. A method that combines biochar treatment as an adsorbent with wetland sediment treatment as a source of sulfate-reducing bacteria is used to address AMD effectively. This research aimed to determine the ability of biochar in combination with wetland sediment treatment to reduce sulfate and heavy metal content in acid mine drainage wastewater. This research was conducted on a laboratory scale in an AMD wastewater treatment reactor with the following treatments of biochar mixed with wetland sediment. Observations included sulfate content, pH, and heavy metal content. Scanning electron microscope (SEM) analysis was also performed on the biochar. SEM observations revealed the presence of small, dense, and irregularly shaped pores on the surface of the biochar. The results on day 30 showed that biochar mixed with wetland sediment was able to reduce sulfate concentration by 74.19% and reduced Pb by 73.79%, compared with treatment sediment only to 64.81% sulfate concentration and reduced Pb by 53.85%, treatment biochar only had reduced sulfate of 46.90% and reduced Pb by 58.67% and control 1.79% sulfate concentration and reduced Pb by 1.87%.
Bioremediator Formula for Cultivated Plants Grown on Post-Mining Soil Syahri, Yolanda Fitria; Mustafa, Marlina; Ratriani, Ratriani
Agro Bali : Agricultural Journal Vol 8, No 1 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i1.2195

Abstract

Research in the form of bioremediation through Bacillus sp. and VAM tests to degrade nickel and chromium needs to be carried out to obtain the best formula for plant growth. Thus, this research has the following objectives: (1) to obtain the best treatment of soil heavy metal bioremediator (2) to reuse post-mining land into productive land for cultivated plants. The research method will be divided into two activities (1) provision of bioremediator formula and (2) testing of bioremediator formulation on cultivated plants. Based on the study's results, 150 ml Bacillus/plant (A3) has the highest effectiveness in reducing chromium by 0.922% in the soil. While the best formula for reducing nickel is 75 grams of VAM (A6) with a reduction capacity of 0.924%. All treatments on sorghum samples on each chromium and nickel produced values <1, this shows that sorghum only absorbs heavy metals and does not accumulate much of all chromium and nickel heavy metals. Parameters of plant height, number of leaves, wet weight, and dry weight with the DMRT at the α = 5% level showed a very significant effect on the treatment of VAM (A6) 75 grams. Bacillus sp and VAM can be used as a bioremediator agent for cultivated plants planted on post-mining soil.
Co-Authors Abdullah, As’adi Elis Tambaru Eva Johannes Fahruddin Fahruddin Marlina Mustafa, Marlina Mustika Tuwo, Mustika Ratriani, Ratriani Samawi, Muhammad Farid St. Fauziah