Heavy Metal Enrichment of Soil Irrigated
with Paper and Board Mill (PBM) Effluents

Younas, Umer; Iqbal, Shahid; Saeed, Zohaib; Ibrahim, Saba; Khurshid, Shazia; Pervaiz, Muhammad; Saleem, Asif; Zaidi, Asma; Iqbal, Munawar; Nazir, Arif

doi:10.15244/pjoes/117653

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Chitosan is available in different forms, which are nonporous due to presence of hydrogen bonding between chitin biopolymer chains. The relatively low surface area of polymeric materials restricts access to internal adsorption sites, reducing metal-ligand adsorption ability and level [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Removal of Cr(III) from Aqueous Solution Using Labeo rohita Chitosan-Based Composite

Bukhari

Hassan

Atta

et al. 2022

Adsorption Science & Technology

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This study focusses on the synthesis of chitosan-cellulose composite membrane derived from Labeo rohita fish scales (FS) for the removal of Cr(III) from aqueous solution, while chromium is a serious threat to groundwater. Waste FS are valorized to chitosan by demineralization, deproteination, and deacetylation successively. Cellulose was extracted from sugarcane bagasse using acidic hydrolysis. Chitosan-based cellulose composite porous membrane was fabricated by evaporating solvent from polymer solution in petri dish. The impact of pH, contact time, and absorbent dosage on the removal of Cr(III) from an aqueous solution was investigated. Atomic absorption spectrophotometer was used to check the Cr(III). Results showed that chitosan comprising 85% degree of deacetylation was achieved by alkali treatment, while yield was 22%. FTIR analysis confirmed the chitosan and chitosan-cellulose-based composite membrane. Morphology studies showed that the cellulose was strongly staggered and due to the chitosan, the surface of cellulose became rougher, which is good to enhance the adsorption capacity. The maximum removal 57% of Cr(III) from aqueous solution was observed at pH 6 at 60 min and 50 mg dosage of adsorbent. The minimum removal (47%) of Cr (III) was found at pH 2. These results confer that Labeo rohita-based chitosan-cellulose composite membrane has great potential for the removal of metals from industrial effluents.

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Section: Introductionmentioning

confidence: 99%

Removal of Cr(III) from Aqueous Solution Using Labeo rohita Chitosan-Based Composite

Bukhari

Hassan

Atta

et al. 2022

Adsorption Science & Technology

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“…Similarly, pesticides may contain heavy metals like mercury and arsenic, which can have long-term effects on soil health [59,60]. Irrigation water is also a common source of heavy metal contamination in soil, particularly from mining and industrial processes [61,62]. Therefore, it is crucial to monitor and manage agricultural practices to minimize the accumulation of heavy metals in soil and prevent further contamination.…”

Section: Factors Affecting Soil Heavy Metalsmentioning

confidence: 99%

Ecological Risk Assessment and Source Identification of Heavy Metals in Soils from Shiyang River Watershed in Northwest China

Liao,

Wang,

Gui

et al. 2023

Toxics

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Shiyang River Watershed is an important ecological barrier and agricultural production area in Northwest China, and the study of soil heavy metal content, distribution, and sources is important for agricultural product safety, pollution control, and ecosystem health. In this paper, 140 soil samples were collected from 28 stations to assess the level of heavy metal (Arsenic (As), Copper (Cu), Lead (Pb), Cadmium (Cd), Chromium (Cr), Mercury (Hg), Nickel (Ni), Zinc (Zn)) contamination, pollutant sources and influencing factors of soil in Shiyang River Watershed through determination of the metal contents and statistical analysis. The results indicated that the soils in the study area are typical saline soils in arid zones. The enrichment factors (EF) of As, Cr, Cu, Ni, Zn, and Pb indicate no contamination, and the EFs of Cd and Hg suggested minor contamination. Although the concentrations of Cd and Hg in soil are lower than others, they are more biotoxic and exhibit a moderate–high ecological risk. The index of geoaccumulation (Igeo) values reflect that most of the stations, especially the three groups of samples from depths of 10–20 cm, 20–40 cm, and 40–80 cm, are below the contamination threshold for all heavy metals. The chemical speciation of heavy metals, principal component analysis, and correlation analysis showed that Cr, Cu, Pb, Cd, Ni, and Zn mainly come from the natural accumulation upon weathering of soil-forming matrices. Hg and As mainly come from anthropogenic contributions. The effect of agricultural crop cultivation on soil heavy metal contamination is mainly through farm irrigation and crop–soil interactions, which accelerate the release of heavy metals through the weathering of soil-forming parent material and irrigation, which transports the heavy metals below the surface. The results of this study can provide a scientific basis for the involved authorities to formulate reasonable policies on environmental protection and pollution control.

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Cellulose, clay and sodium alginate composites for the removal of methylene blue dye: Experimental and DFT studies

Kausar

Réhman

Khalid

et al. 2022

International Journal of Biological Macromolecules

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Heavy Metal Enrichment of Soil Irrigated with Paper and Board Mill (PBM) Effluents

Cited by 5 publications

References 11 publications

Removal of Cr(III) from Aqueous Solution Using Labeo rohita Chitosan-Based Composite

Removal of Cr(III) from Aqueous Solution Using Labeo rohita Chitosan-Based Composite

Ecological Risk Assessment and Source Identification of Heavy Metals in Soils from Shiyang River Watershed in Northwest China

Cellulose, clay and sodium alginate composites for the removal of methylene blue dye: Experimental and DFT studies

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