Potential of Wastewater Disposal Through Tree Plantations

Yadav, Rashmi; Minhas, P.S.; Khajanchi-Lal,; Dagar, J. C.

doi:10.1007/978-81-322-2659-8_10

Cited by 9 publications

(2 citation statements)

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“…Marginal-quality water resources have increasingly become the predominant costeffective and reliable alternative to conventional water in many countries in arid and semi-arid regions [1], including brackish groundwater, saline, and sodic drainage effluents, sewage, and other types of wastewater [2]. On the global scale, out of the total irrigated area of 310 million hectares (M ha), nearly 20 M ha (6.5%) are irrigated with treated and untreated wastewater [3], while 117 M ha (37.7%) are irrigated with brackish groundwater [2]. It is also estimated that at least 10% of the world's population consumes foods produced by irrigating with wastewater [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Marginal-Quality Irrigation on Accumulation of some Heavy Metals (Mn, Pb, and Zn) in TypicTorripsamment Soils and Food Crops

et al. 2022

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Lack of active sorption sites in sandy soils renders metals added by irrigation water more labile and increases their soil-to-plant transfer. Thus, this study investigated the long-term impacts of irrigation using sewage effluents and contaminated groundwater on metal accumulations in TypicTorripsamment soils, and edible parts of food crops. Nine sites in El-Gabal El-Asfar farm, south-eastern to the Nile Delta of Egypt, were selected. At each site, irrigation water, soil (0–30 cm), and the crop’s edible part were sampled in triplicates and analyzed for Mn, Pb, and Zn. Results revealed significant (p < 0.05) differences in metal concentrations among water sources. Thus, constant irrigation caused significant spatial variations in total and available metal contents in soils. Total contents of Pb (in four sites) and Zn (in all sites) exceed the lithosphere range, while the available contents of the three metals exceeded the safe limits in all soils. The index of geo-accumulation indicated no Mn pollution but showed elevated pollution risks for Pb and Zn. The three metals showed high availability ratios, proving the effect of light soil texture. The multivariate statistical analysis indicated that Mn and Zn had similar geochemical behaviors in soils. Metal contents in all crop’s edible parts surpassed the safe limits. The bioaccumulation factor (BAF) was less than 1.0 for Mn and Zn but higher than 1.0 for Pb. The highest BAFs occurred in cabbage leaves, indicating the phytoextraction potential of this species. Sufficient water treatment and proper remediation techniques are recommended to alleviate metal accumulation in food crops and their transfer via the food chain.

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Section: Introductionmentioning

confidence: 99%

Effect of Marginal-Quality Irrigation on Accumulation of some Heavy Metals (Mn, Pb, and Zn) in TypicTorripsamment Soils and Food Crops

et al. 2022

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“…Furthermore, the annual increase in population densities increases water requirements, especially in urban areas, which has led to the use of water increasing, by very large quantities, in various non-agricultural sectors, resulting in the production of huge volumes of wastewater [4]. Municipal wastewater consists mainly of effluents from homes, institutions, industrial activities, and running water from streets after rainfall or other forms of precipitation [5]. Under such conditions, it has become more imperative to consider the utilization of these non-conventional water resources, such as treated wastewater (TWW), as an essential component of water budget management, especially for agriculture.…”

Section: Introductionmentioning

confidence: 99%

Phytoremediation Potential of Selected Ornamental Woody Species to Heavy Metal Accumulation in Response to Long-Term Irrigation with Treated Wastewater

Al-Sayaydeh

Al-Hawadi

Al-Habahbeh

et al. 2022

Water

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Arid and semiarid environments of Mediterranean countries suffer from scarcity of water resources, which limits their agriculture productivity. Using treated wastewater (TWW) is considered an alternative strategy for irrigation purposes in such areas. However, TWW contains substantial levels of heavy metals (HMs) and contaminants that pollute the environment and soil. The aim of this study is to evaluate the phytoremediation potential of six selected woody tree species under long-term irrigation with TWW. The concentration, bioaccumulation factor (BFC), translocation factor (TF), and comprehensive bioconcentration index (CBCI) of HMs were measured in the various parts (roots, bark, and leaves) of the studied tree species. The results show a general pattern of mineral accumulation in the roots and low translocation to the areal parts of various species. Cupressus sempervirens, which is a native species in Mediterranean environments, had higher TF values for Fe, Mn, Cu, Cr, Cd, and Pb metals in its areal parts compared to other tree species. The study shows that Ficus nitida has the potential to be a hyperaccumulator for Cd in its bark, with a TF value that exceeds 12. Deciduous trees species (Populus nigra and Robinia pseudoacacia) were found to have high TF values for Ni and Cd toward their areal parts, whereas a higher TF for Cr (1.21) was only found in P. nigra bark. Cupressus sempervirens had, significantly, the highest bark and leaf CBCI values (0.83 and 0.82, respectively), whereas Ficus nitida had the second-highest values in the bark and leaves (0.56 and 0.51, respectively). Therefore, Cupressus sempervirens and Ficus nitida are considered good hyperaccumulators for various HMs, and can be used for phytoremediation activities in polluted areas.

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Evolution of Agroforestry as a Modern Science

Dagar

Tewari

2017

Agroforestry

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Potential of Wastewater Disposal Through Tree Plantations

Cited by 9 publications

References 0 publications

Effect of Marginal-Quality Irrigation on Accumulation of some Heavy Metals (Mn, Pb, and Zn) in TypicTorripsamment Soils and Food Crops

Effect of Marginal-Quality Irrigation on Accumulation of some Heavy Metals (Mn, Pb, and Zn) in TypicTorripsamment Soils and Food Crops

Phytoremediation Potential of Selected Ornamental Woody Species to Heavy Metal Accumulation in Response to Long-Term Irrigation with Treated Wastewater

Evolution of Agroforestry as a Modern Science

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