Characterization of Heavy Metal Contaminated Soils of Coimbatore District in Tamil Nadu

Malarkodi, M.; Krishnasamy, R.; Kumaraperumal, R.; Chitdeshwari, T.

doi:10.3923/ja.2007.147.151

Cited by 16 publications

(2 citation statements)

References 3 publications

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“…Industrial effluents such as tannery effluent contains a high amount of metals especially chromium, copper, iron, zinc, mercury and cadmium (Malarkodi et al, 2007;Devi et al, 2011). Leather industries and tanneries generate massive by-products, solid wastes, high amount of wastewater rich in organic wastes different load of pollutants and emissions into the air.…”

Section: Introductionmentioning

confidence: 99%

“…These effluents are released onto the land as well as into the surface water, which eventually reach the level of ground water and lead to contamination due to accumulation of toxic metallic components. This results into a series of problems when consumed, because they are partially or cannot be completely degraded (Malarkodi et al, 2007). The effluents contain several types of chemical such as dispersants, levelling agents, acids, alkalis, various dyes, phenols, carbonates, alcohols, cyanides and heavy metals (Noorjahan, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Biosorption of lead, chromium and cadmium in tannery effluent using indigenous microorganisms

Abioye¹,

Oyewole²,

Oyeleke³

et al. 2018

Braz. J. Biol. Sci.

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This study investigated the biosorption of lead, chromium and cadmium in tannery effluent using indigenous microorganisms. Bacteria isolated from the tannery effluent were Bacillus subtilis and B. megaterium while fungi isolated were Aspergillus niger and Penicillium sp. The microorganisms were tested for their ability to reduce the concentration of the heavy metals in the tannery effluent using conventional methods. B. megaterium recorded the highest lead reduction (2.13 to 0.03 mg/L), followed by B. subtilis (2.13-0.04 mg/L). A. niger recorded the highest ability to reduce the concentration of chromium (1.38-0.08 mg/L) followed by Penicillium sp. (1.38 0.13 mg/L) while B. subtilis exhibited the highest ability to reduce the concentration of cadmium (0.4-0.03 mg/L) followed by B. megaterium (0.04-0.06 mg/L) after 20 days. When these values were compared to standard limits of Federal Environmental Protection Agency (FEPA), World Health Organization (WHO), National Environmental Standard and Regulations Enforcement Agency (NESREA) and Central Pollution Control Board (CPCB), the isolates recorded an acceptable reduction in the concentration of lead, chromium and cadmium in sterile and unsterile tannery effluent. The results of this showed that the isolates reduced the concentration of lead, chromium and cadmium present in the sterile and raw tannery effluent and suggest that the organisms can be used as a possible treatment of tannery effluents.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biosorption of lead, chromium and cadmium in tannery effluent using indigenous microorganisms

Abioye¹,

Oyewole²,

Oyeleke³

et al. 2018

Braz. J. Biol. Sci.

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Biosorption of chromium (VI) from textile waste water using luffa cylindrica activated carbon

Nwosu‐Obieogu

Okolo

2020

Environmental Quality Mgmt

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Luffa cylindrica was applied as a low-cost adsorbent for removing chromium (VI) from textile industry effluent in this study. The adsorbent was characterized using scanning electron micrograph (SEM). A batch mode experiment was conducted to study the effect of pH, contact time, and adsorbent dosage on the adsorptive potential of the prepared luffa cylindrica activated carbon. The characterization results from SEM indicate that the adsorbents' potential was fully exploited in this study. A significance test conducted using ANOVA indicated that contact time and adsorbent dosage had the most effect on the adsorptive removal of Cr (VI). The optimum removal efficiency was 99.90% at pH 8.0, 99.8% at 60 min of contact time, and 99.82% at an adsorbent dosage of 1.0 g. The experimental results were analyzed using the Langmuir and Freundlich adsorption isotherm models, and the Freundlich isotherm provided a better correlation for Cr (VI) adsorption. The kinetic data by the pseudo-first-order kinetic model gave a better fit than the pseudo-second-order kinetic model.

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Comprehensive evaluation of the effluents eluted from different processes of the textile industry and its immobilization to trim down the environmental pollution

Husaini

Zaidi

Matiullah

et al. 2011

J Radioanal Nucl Chem

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Characterization of Heavy Metal Contaminated Soils of Coimbatore District in Tamil Nadu

Cited by 16 publications

References 3 publications

Biosorption of lead, chromium and cadmium in tannery effluent using indigenous microorganisms

Biosorption of lead, chromium and cadmium in tannery effluent using indigenous microorganisms

Biosorption of chromium (VI) from textile waste water using luffa cylindrica activated carbon

Comprehensive evaluation of the effluents eluted from different processes of the textile industry and its immobilization to trim down the environmental pollution

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