Effect of sewage water on chemical properties and heavy metals content of El Gabal El Asfar sandy soils

Waly, Mostafa I.; Elnaim, E.M. Abd; Omran, Mohamed; Nashar, B.M.B. El

doi:10.1016/0269-7483(87)90114-5

Cited by 18 publications

(3 citation statements)

References 8 publications

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“…Alloway (1995) revealed that heavy metals are more mobile at acid conditions and the increasing of pH by liming reduced their bioavailability. Also, Waly et al (1987) reported that available and total heavy metals in soils showed significantly correlation with the organic matter in the soil. Planting timber trees species is very important to utilization of wastewater and for phytoremediation of heavy metals in short period of time if heavy metals can be control from different industries.…”

Section: Effect Of Irrigation With Wastewater Onmentioning

confidence: 99%

Growth Study of Some Local and Exotic Timber Tree Species Irrigated With Treated Waste Water

Bahnasy

2018

Egyptian Journal of Agricultural Sciences

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This study was carried out in the Serapium Forest Plantation, Ismailia Governorate, Egypt during 2015-2018 seasons to study the response of certain tree species to treated waste water. The tree species that have been tested are Khaya senegalensis, Swietenia mahagoni, Azadirachta indica, Tectona grandis, Pongamia pinnata, Casuarina equisetifolia, Gmelina arborea and Corymbia citriodora. After three years of planting, the tallest plants were C. citriodora, followed by C. equisetifolia and Gmelina arborea. However, the highest increment in the diameter of trees was in C. citriodora, followed by G. arborea and C. equisetifolia in the first ranking.While, the smallest increase in number of branches was in C. citriodora as compared to the other tested species. The highest specific gravity value of wood was in C. citriodora followed by P. pinnata. For the fiber length, C. equisetifolia followed by K. senegalensis and P. pinnata resulted the highest values compared to other tree species. In respect of the accumulation of nickel (Ni) in the leaves, the highest values were obtained by C. equisetifolia and in the stem, the highest value in K. senegalensis, while G. arborea trees gave the highest values of nickel in the root. Concerning the accumulation of lead (Pb) in the leaves, the highest values was noticed with S. mahagoni, while in the stem was in K. senegalensis, and in the root, the highest value was in C. equisetifolia and S. mahagoni. It can be concluded from the herein study that using treated waste water in irrigating woody trees was more effective and associated with increment of growth parameters sequence produceing healthy trees and enhanced both of specific gravity and fiber length. On the other hand, it is evident that cultivating timber trees irrigated by waste water can be used as phytoremidiation by absorbing the heavy metals such as Ni, Pb and Cd which are not recommend in irrigation of the edible plants. It is possible to say that the trees under study can grow under the irrigation conditions of the treated waste water, and also expand their cultivation in the afforestation programs in Egypt for their environmental, economic and aesthetic importance, in particular the trees of Corymbia citriodora, Casuarina equisetifolia, Gmelina arborea, Khaya senegalensis, and Swietenia mahagoni .

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Section: Effect Of Irrigation With Wastewater Onmentioning

confidence: 99%

Growth Study of Some Local and Exotic Timber Tree Species Irrigated With Treated Waste Water

Bahnasy

2018

Egyptian Journal of Agricultural Sciences

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“…Significant negative correlations have also been recorded between heavy metals availability and SOM through the immobilization of these metals [61,62]. Waly et al [63] found that the pH of soil treated with wastewater dropped with time. This decrease is attributable to soil microorganisms producing carbon dioxide and organic acids.…”

Section: Physiochemical Parametersmentioning

confidence: 99%

Pollution Risk Assessment of Heavy Metals along Kitchener Drain Sediment, Nile Delta

El-Amier,

Bonanomi,

Abd-ElGawad

2023

Soil Systems

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Population expansion within agricultural lands applies pressure on natural resources, particularly water resources, and leads to contamination through different types of pollutants, such as heavy metals, that consequently alter the ecosystem and impact human health. In the present work, several heavy metals in sediment along the Kitchener drain were assessed using different soil quality and health indices; the Kitchener drain is one of the major drains in the Nile Delta. Sediments were collected from six stations along the drain from upstream to downstream. Soil physical and chemical properties were analyzed as well as four metal pollution indices and five ecological risk indices. Additionally, carcinogenic and noncarcinogenic risks for adults and children were evaluated. The data showed that the Kitchener drain is mainly contaminated with Cd, Pb, and Zn, where the concentrations decreased from upstream to downstream. The eco-toxicological indexes showed that Pb, Zn, and Cr were the most hazardous metals along the drain, mainly at upstream stations. The human health risk indices data revealed that the noncarcinogenic risk of the studied metals can be ordered as follows: Co > Cr > Pb > Mn > Ni > Cd > Cu > Zn for adults, while for children it was Cr > Mn > Co > Pb > Ni > Cd > Cu > Zn. The carcinogenic risk data showed that heavy metals ranged from low to medium in all sites, except for Pb and Zn, which have high carcinogenic risks. The present study showed more contamination upstream compared to downstream which can be attributed to urbanization and human activity, as shown from the land use/landcover map. This highlighted that the major drains inside the Nile Delta suffer from different anthropogenic activities that should be taken into consideration by researchers, scientists, and policymakers. Also, the source of heavy metal pollution, particularly upstream, should be controlled or treated before discharge into the drain. On the other side, downstream (toward the Mediterranean Sea), the heavy metals could affect the trophic levels of the marine ecosystem on the Mediterranean Sea which should be taken into consideration.

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“…However, the effects of wastewater on soil pH are quite variable, depending on effluent composition, application rates, soil chemical attributes, and vegetation type. Soil pH has been found to increase in some studies (Sparling et al, 2001;Falkiner and Smith, 1997;Schipper et al, 1996), or to decrease in others (Guo and Sims, 2003;Waly et al, 1987). Even slight reductions in soil pH may adversely influence the structure and the activity of soil microorganisms involved in carbon and nutrient cycling and impair the capacity of SRS for organic matter removal.…”

Section: A Phmentioning

confidence: 99%

Treatment of Wastewater With Slow Rate Systems: A Review of Treatment Processes and Plant Functions

Paranychianakis

Angelakιs

Leverenz

et al. 2006

Critical Reviews in Environmental Science and Technology

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Land treatment systems constitute a viable alternative solution for wastewater management in cases where the construction of conventional (mechanical) wastewater treatment plants (WWTPs) are not affordable or other disposal options are not available. They have proven to be an ideal technology for small rural communities, clusters of homes, and small industrial units due to low energy demands and low operation and maintenance costs. In addition, slow rate systems (SRS) may be designed using the "zero discharge" concept. The purpose of this article is to review the current trends and developments in the field of SRS, focusing on those systems in which effluent application is based on plant water requirements. Vegetation has an important role in treatment efficiency through its effects on hydraulic loading rate, nutrient removal, and biomass production. In addition, vegetation may affect the fate of trace elements and the degradation/detoxification of recalcitrant organics. Detailed knowledge of the basic processes involved in wastewater treatment and the factors governing the performance of SRS is fundamental for enhancing treatment efficiency and eliminating potential environmental and health risks. Finally, monitoring performance of SRS and adopting the appropriate management strategies are of paramount importance to maintain treatment efficiency over the a long term.

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Effect of sewage water on chemical properties and heavy metals content of El Gabal El Asfar sandy soils

Cited by 18 publications

References 8 publications

Growth Study of Some Local and Exotic Timber Tree Species Irrigated With Treated Waste Water

Growth Study of Some Local and Exotic Timber Tree Species Irrigated With Treated Waste Water

Pollution Risk Assessment of Heavy Metals along Kitchener Drain Sediment, Nile Delta

Treatment of Wastewater With Slow Rate Systems: A Review of Treatment Processes and Plant Functions

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