New approaches in bioremediation of heavy metals from tannery effluent using microorganisms

Lakshmi, K. Udaya; Jenifer, G; Aishwarya, C.; Kapoor, Divya; Josephine, Jemes Jaya; Putra, Ketut Gede Dharma; Malliga, P.

doi:10.1016/b978-0-12-822965-1.00020-9

Cited by 3 publications

(3 citation statements)

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“…The efficiency of rice plants in phytoremediation of PTHMs from water or soil has been reported by various researchers (Liu et al 2007;Evangelou et al 2015;Pajević et al 2016;Yan et al 2020). Further, Rice is being used in numerous research due to its vast range of adaptability to different environmental conditions and potential to tolerate abiotic stress (Liu et al 2007;Bharagava et al 2008;Satpathy et al 2014;Olawale et al 2021;Lakshmi et al 2021). Earlier, the potential of the rice plant to remediate heavy metals like Cd, Pb, and Fe contaminated soil and water have been studied by various researchers (Liu et al 2007;Satpathy et al 2014;Olawale et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The accumulation of heavy metals in the environment is also contaminating the food chains. The toxicity of these PTHMs is non-specific and affects organisms via several competing pathways (Lakshmi et al 2021).…”

Section: Introductionmentioning

confidence: 99%

“…According to Evangelou et al (2015), few trees such as Willow (Salix spp), poplar (Populus spp), and few plants like maize (Zea mays), Indian mustard (Brassica juncea), have been known as a suitable candidate for the management of these heavy metals (Chowdhary et al 2018). These plants have some advantages over other crops such as rapid growth, tolerance to harsh environmental conditions such as high salinity, aesthetically pleasant, control of soil erosion, high biomass production, and removal of heavy metal discharge (Lakshmi et al 2021). The efficiency of rice plants in phytoremediation of PTHMs from water or soil has been reported by various researchers (Liu et al 2007;Evangelou et al 2015;Pajević et al 2016;Yan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

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Phytoremediation of chromium, iron and nickel by Indian Rice Plant (Oryza sativa L.): An opportunity for management of multi-metal contaminated tannery wastewaterPhytoremediation of chromium, iron and nickel by Indian Rice Plant (Oryza sativa L.): An opportunity for management of multi-metal contaminated tannery wastewater

et al. 2022

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India is the largest producer of leather and leather products. Tannery industries use a large number of synthetic chemicals for the processing of leather and generate a huge amount of wastewater containing a large amount of potentially toxic heavy metals (PTHMs) making them problematic for next-door soil and water system. Currently, phytoremediation is an inexpensive green technology used to move, eradicate, and stabilized heavy metal contamination from contaminated sludge, soil, and wastewater. In this study, the accumulation and distribution of PTHMs found in tannery wastewater and their physio-biochemical effects on Oryza sativa L. have been studied by ICP-MS, GC-MS, and biochemical analysis. The plant was grown in the soil spiked with a mixture of metals (Cr, Fe and Ni) and their five-level of treatment T1 (25mg/kg); T2 (50mg/kg); T3 (100mg/kg); T4 (200mg/kg) and T5 (400mg/kg). During the experiments, various morphological attributes, oxidative stress, enzymatic activities, chlorophyll, and protein content at the different stage was measured. Further, metal accumulation pattern in different parts of plants was also measured. Results of the study revealed that plant root, shoot length, chlorophyll content, and enzymatic activities were significantly reduced after the treatment with 200 mg/kg PTHMs; whereas oxidative stress was increase compared to control levels. Further, treatment of PTHMs suggested that the rice plant (Oryza sativa L.) is well adapted to tolerate and accumulate a high level of heavy metals (up to 200mg/kg) in the root and shoot of the treated plants. If it is treated above this, then seeds were also affected and not safe for human consumption.

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