Use of Indigenous Bacteria from Arsenic Contaminated Soil for Arsenic Bioremediation

Author(s):  
Ivy Mallick ◽  
Sk Tofajjen Hossain ◽  
Sangram Sinha ◽  
Samir Kumar Mukherjee
2020 ◽  
Vol 1 (2) ◽  
pp. 37-51
Author(s):  
C. E. Oshoma ◽  
S. O. Nwodo ◽  
I. S. Obuekwe

The processing of cassava into value-added products is associated with discharge of effluents which contain substances that have adverse effect on the environment. Remediative activity of indigenous bacteria can be stimulated by supplementing effluents with phosphorus. Rock phosphate (RP) solubilization and enzymatic activities from bacteria on the cassava mill effluents (CME) contaminated soil was investigated. Soil mixed with varying concentrations of CME (0, 100, 200, 300, 400, 500 and 600 ml) and 10 g of RP were analyzed on days 0 and 16. Parameters analyzed were changes in pH, heterotrophic bacteria load, phosphate-solubilizing bacteria load, available phosphorus, acid phosphatase, cellulase and urease concentrations. The results showed that the medium containing 400 ml CME contaminated soil had the highest phosphate-solubilizing bacteria load (12.60 ± 2.08 x 106 cfu/ml), available phosphorus (126.00 ± 4.08 mg/kg), acid phosphatase (9.54 ± 0.51 mgN/g/min), cellulase (15.24 ± 0.81 mg/g/6h) and urease concentration (2.15±0.22 mg/g/2h). The control had the lowest phosphate-solubilizing bacteria load and enzymatic activity. Biostimulation of indigenous bacteria to enhance the degradation of cassava mill effluent-contaminated soil, using rock phosphate, showed promising results. This implies that rock phosphate solubilization by indigenous bacteria in CME-contaminated soils could be important for the remediation and reclamation of contaminated lands.


2020 ◽  
Vol 11 ◽  
Author(s):  
Xiaoyun Niu ◽  
Jian Zhou ◽  
Xiaona Wang ◽  
Xiaoyu Su ◽  
Shaohua Du ◽  
...  

2019 ◽  
pp. 1-12 ◽  
Author(s):  
A. B. Andem ◽  
I. U. Bassey ◽  
C. O. Odey ◽  
O. R. Ibor ◽  
I. O. Agborubere

Microbial biodegradation of engine oil contaminated soil in Calabar Metropolis was studied for a period of six (6) months (January to June, 2017). The soil samples collected were ice boxed and taken to the laboratory for microbial, total hydrocarbon, total organic carbon and other physico-chemical parameters analysis. A total of thirteen (13)  indigenous bacteria species were identified in the soil of the sites analyzed during the study, which includes; Staphylococcus spp., Pseudomonas aeruginosa, Bacillus spp., E. coli, Enterococcus feacalis, Shigella spp., Arthrobacter spp., Alcaligen spp., Acinobacter spp., Azotobacter spp., Aeromonas spp., Xanthomonas spp. and Clostridium spp. The most abundant bacteria in the contaminated site was Staphylococcus spp. (65%) while the least bacteria count in the contaminated site was Clostridium spp. (9%). Staphylococcus spp. was the most abundant indigenous bacterial species and also the most effective biodegradation bacteria. The identified indigenous bacteria utilized the hydrocarbons, multiplied rapidly and then degraded the total hydrocarbon and total organic carbon more in the contaminated site compared to the control site. Site one recorded the highest bacteria count (927) while the least bacteria counts were recorded in the control site (81). The bacteria species showed its degradation and bioremediation capabilities prompting the need for its use in cleaning crude oil contaminated sites, due to the fact that it is cheap and not environmentally harmful.


2013 ◽  
Vol 20 (2) ◽  
pp. 480-487 ◽  
Author(s):  
Qian Li ◽  
Zhi-hui Yang ◽  
Li-yuan Chai ◽  
Bing Wang ◽  
Shan Xiong ◽  
...  

2019 ◽  
pp. 210-216
Author(s):  
Indratin Indratin ◽  
◽  
Asep Kurnia ◽  
Sri Wahyuni ◽  
◽  
...  

2010 ◽  
Vol 17 (4) ◽  
pp. 155-160 ◽  
Author(s):  
BAMBANG YUDONO ◽  
MUHAMMAD SAID ◽  
SABARUDDIN ◽  
ADIPATI NAPOLEON ◽  
MARYATI BUDI UTAMI

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