Heavy metal contamination in sand and sediments near to disposal site of reject brine from desalination plant, Arabian Gulf: Assessment of environmental pollution

Environmental pollution due to heavy metals is a matter of great concern to many scientists and managers worldwide. The threats to human health from heavy metals are primarily associated with the exposure in agriculture production activities. However, a considerable number of technological methods have been used to remove the heavy metals from polluted soils. One of the simplest measures to effectively remove heavy metal contamination is to use both plants and microorganisms, which have been considered "natural materials" or "Bio-Materials" to treat pollutants. This study was conducted on assessing the ability of Trichoderma to absorb heavy metals into the plant. Phytoremediation experiments with Trichoderma were used to remove heavy metals in the soil. Our findings showed that Dracaena Fragrans plants are capable of absorbing heavy metals Cu, Pb, and Zn in soil contaminated with experimental heavy metals.

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EFEKTIFITAS PENGIKATAN LOGAM Pb OLEH BAKTERI, Bacillus subtilis

Jurnal Sains Natural ◽

10.31938/jsn.v4i2.87 ◽

2017 ◽

Vol 4 (2) ◽

pp. 152 ◽

Cited By ~ 1

Author(s):

Maulin Inggraini

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Bacillus Subtilis ◽

Environmental Pollution ◽

Metal Binding ◽

Metal Contamination ◽

Heavy Metal Contamination ◽

Rapid Development ◽

Physical Approach ◽

Biological Technique

Effectiveness of Heavy Metal (Pb) Binding of Bactery Bacillus subtilis The rapid development of technology and industries lead to higher environmental pollution by heavy metals, especially Pb. Reduction of heavy metals is commonly done using chemical and physical approach. Another alternative is biological technique which is more efficient due to its higher metal binding and readily available as materials. Bacillus subtilis was a potential bacterium in reducing heavy metal contamination. This study aimed to determine the B. subtilis binding effectiveness of Pb; to test the bacterial tolerance to Pb at varied concentrations; and to detect the accumulation sites of Pb within B. subtilis. The results showed that B. subtilis was able to bind Pb with the effectiveness percentage of 17.45%. Pb was accumulated in the cell walls.Keyword: Bacillus subtilis, Pb binding ABSTRAK Pesatnya perkembangan teknologi dan industri menyebabkan pencemaran lingkungan yang lebih tinggi dengan logam berat, terutama Pb. Pengurangan logam berat yang biasanya dilakukan dengan menggunakan bahan kimia dan pendekatan fisik. Alternatif lain adalah teknik biologi yang lebih efisien karena logam yang lebih tinggi mengikat dan tersedia sebagai bahan. Bacillus subtilis adalah bakteri potensial dalam mengurangi kontaminasi logam. Penelitian ini bertujuan untuk mendeterminasi B. subtilis yang efektivitas mengikat Pb; untuk menguji toleransi bakteri terhadap Pb pada konsentrasi yang bervariasi; dan untuk mendeteksi akumulasi Pb dalam Bacillus subtilis. Hasil penelitian menunjukkan bahwa B. subtilis mampu mengikat Pb dengan efektivitas persentase 17,45%. Pb terakumulasi dalam dinding sel.Kata Kunci : Bacillus subtilis, pengikatan Pb

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