Bioremediation of Metals, Metalloids, and Nonmetals

Rudakiya, Darshan M.; Patel, Yogesh

doi:10.1007/978-981-15-7455-9_2

Cited by 6 publications

(2 citation statements)

References 39 publications

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“…These plants have high phytoremediation potential and thus reducers the level of pollutants in the environment (Rocha et al, 2021). A heavy metal is any one of a number of elements that exhibit metallic properties, which includes transition metals, lanthanides, actinides as well as the metalloids, Arsenic and Antimony (Rudakiya and Patel, 2021). While many heavy metals have considerable toxicity such as lead, cadmium, manganese, chromium among others, while there are those that are considered not deemed to possess significant toxic properties, and, in fact, several of these elements including zinc, iron, copper, chromium and cobalt are necessary for metabolic function for a large class of organisms.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Azadirachta Indica (L.) in the Removal of Heavy Metal From Soil Contaminated With Lead Poisoning in Anka, Zamfara State

Salau¹,

Ibrahim²,

Aliyu³

et al. 2023

FJS

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This study was conducted to assess the potentials of Azadirachta indica (L.) in the removal of heavy metal from soil contaminated with lead poisoning in Anka, Zamfara State. Soil and Azadirachta indica samples were collected and analyzed for physico-chemical and heavy metals. Contamination and transfer factors were also calculated. The results of physico-chemical parameters revealed that Anka (control) has highest pH H20 (1:2.50); 7.63, Organic Carbon (OC); 1.54%, Total Nitrogen (TN); 1.91%; Cationic Exchange Capacity (CEC); and 5.52cmol kg −1 . Abare has the highest values of Available Phosphorus (AP); 32.55 mg/kg, Electrical Conductivity (CEe); 1.33d/sm. The textural classes were Loamy Sand (LS). The highest concentrations of heavy metals were in Abare; Zn (54.68mg/kg), Mn (51.19mg/kg), Pb (493.85mg/kg) and Cd (3.78mg/kg). The highest CF of all the heavy metals was found in Abare with Zn (0.18), Mn (0.03), Pb (4.94) and Cd (1.26). Bagega has the highest concentrations of transfer factor (TF) of Mn (2.10), Pb (1.48) and Cd (0.75) while Anka town has the highest TF of Zn (2.53). The results obtained showed that soil physico-chemical properties enhance mobility and availability of heavy metals. Azadirachta indica can accumulate heavy metals from contaminated soils as the concentrations of the heavy metals were reduced in the polluted soils. The contamination factors revealed that most values fall within none to medium contamination due to the phytoremediation potential of the plant. Thus Azadirachta indica posses high phytoremediation potentials as it helps in reducing the high amount of heavy metals in the soil.

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Section: Introductionmentioning

confidence: 99%

Assessment of Azadirachta Indica (L.) in the Removal of Heavy Metal From Soil Contaminated With Lead Poisoning in Anka, Zamfara State

Salau¹,

Ibrahim²,

Aliyu³

et al. 2023

FJS

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“…In most ores, heavy metals such as As, Fe, Pb, Zn, Au, Ni, Ag, and Co exist as sulfides while others such as Mg, Al, Se, Au, and Sb exist as oxides. Certain heavy metals such as Cu, Fe, and Co can exist both as sulfide and oxide ores (Engwa et al, 2019 ; Sani & Amanabo, 2021 ; Rudakiya & Patel, 2021 ). More so, the industrial products such as paints, cosmetics, pesticides, and herbicides also serve as sources of heavy metals.…”

Section: Introductionmentioning

confidence: 99%

Assessment of the Ecotoxicity of Pollution by Potentially Toxic Elements by Biological Indicators of Haplic Chernozem of Southern Russia (Rostov region)

Колесников

Minnikova

Казеев

et al. 2022

Water Air Soil Pollut

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The content of various chemical elements such as metals, metalloids, and nonmetals in the environment is associated with natural and anthropogenic sources. It is necessary to normalize the content of metals, metalloids, and nonmetals as potentially toxic elements (PTE) in the Haplic Chernozem. The soils of the Southern Russia are of high quality and fertility. However, this type of soil, like Haplic Chernozem, is subject to contamination with a wide range of PTE. The aim of the work was to rank metals, metalloids, and nonmetals by ecotoxicity in Haplic Chernozem. To assess the ecotoxicity of chernozem, data for 15 years (2005–2020) were used. Biological indicators used to assess the ecotoxicity of Haplic Chernozem: catalase activity, cellulolytic activity, number of bacteria, Azotobacter spp. abundance, to change of length of radish’s roots. Based on these biological indicators, an integral indicator of the state of Haplic Chernozem was calculated. The ecotoxicity of 23 metals (Cd, Hg, Pb, Cr, Cu, Zn, Ni, Co, Mo, Mn, Ba, Sr, Sn, V, W, Ag, Bi, Ga, Nb, Sc, Tl, Y, Yb), 5 metalloids (B, As, Ge, Sb, Te) and 2 nonmetals (F, Se) as priority pollutants. It is proposed to distinguish three hazard classes of metals, metalloids, and nonmetals to Haplic Chernozem: I class — Te, Ag, Se, Cr, Bi, Ge, Sn, Tl, Hg, Yb, W, Cd; II class — As, Co, Sc, Sb, Cu, Ni, B, Nb, Pb, Ga; III class — Sr, Y, Mo, Zn, V, Ba, Mn, F. It is advisable to use the results of the study for predictive assessment of the impact of metals, metalloids, and nonmetals on the ecological state of the soil during pollution.

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