Groundwater nitrate and fluoride profiles, sources and health risk assessment in the coal mining areas of Salt Range, Punjab Pakistan

Masood, Noshin; Hudson‐Edwards, Karen A.; Farooqi, Abida

doi:10.1007/s10653-021-00987-y

Cited by 27 publications

(4 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The main component of pyrite is FeS 2 , which is the most important source of sulfide in oil shale. The leachates after the oxidation reaction after heating are Fe 2+ , Fe 3+ , and SO 4 2− plasma [43], which caused the concentration of sulfate in the leaching experiment to exceed the standard and the average sulfate value of Sample 1 to be higher than that of Sample 2. At the same time, this is also the main reason why the concentration of Fe in Sample 1 was higher than that in Sample 2.…”

Section: Analysis Of the Leaching Experimentsmentioning

confidence: 99%

Groundwater Environment and Health Risk Assessment in an In Situ Oil Shale Mining Area

Wang,

Liu,

et al. 2024

Water

View full text Add to dashboard Cite

To clarify the risk posed to groundwater in oil shale in situ mining areas, we examine five leached pollutants: Fe, Mn, Cr, sulfate, and ammonia nitrogen. Potential groundwater contents of these five pollutants were evaluated using an improved Nemero comprehensive index method and a health risk assessment method. The results show that, compared with the Class III groundwater quality standard (GB/T 14848-2017) used in the People’s Republic of China, average values of Fe, Mn, and sulfate in leaching solution from Fuyu oil shale exceed the standard, while Cr and ammonia nitrogen do not exceed the standard, and the leaching solution is within Class V groundwater quality. The average values of Fe and Mn in the leaching solution from Fushun oil shale exceed the Class III standard, while Cr, sulfate, and ammonia nitrogen values from this oil shale do not exceed the standard, and the leaching solution is Class IV in terms of groundwater quality. The weighting value used in the Nemero assessment method for the heavy metal Cr is the largest as its potential to cause harm to groundwater quality is the largest. The weight value for sulfate is the smallest as the harm degree is the smallest. The chemical carcinogen Cr has the greatest potential impact on human health. The health risk caused by the chemical non-carcinogen Mn is greater than that caused by Fe and ammonia nitrogen. When high pyrolysis temperatures are used, Mn will be released into groundwater in large quantities. Therefore, supervision and control should be strengthened. The results presented here can provide a reference for the comprehensive evaluation of groundwater risks caused by in situ oil shale mining.

show abstract

Section: Analysis Of the Leaching Experimentsmentioning

confidence: 99%

Groundwater Environment and Health Risk Assessment in an In Situ Oil Shale Mining Area

Wang,

Liu,

et al. 2024

Water

View full text Add to dashboard Cite

show abstract

“…Inappropriate fly ash disposal on the surface of the ground leads to high fluoride concentration in the groundwater. The dispersion of particulate fluoride from the aerial emission reaches the surface and, after rains, percolates due to precipitation, reaching the groundwater zone [117,118].…”

Section: Sources and Geochemistry Of Fluoride In Environmental Compartmentsmentioning

confidence: 99%

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

et al. 2021

View full text Add to dashboard Cite

Fluoride is widely found in soil–water systems due to anthropogenic and geogenic activities that affect millions worldwide. Fluoride ingestion results in chronic and acute toxicity, including skeletal and dental fluorosis, neurological damage, and bone softening in humans. Therefore, this review paper summarizes biological processes for fluoride remediation, i.e., bioaccumulation in plants and microbially assisted systems. Bioremediation approaches for fluoride removal have recently gained prominence in removing fluoride ions. Plants are vulnerable to fluoride accumulation in soil, and their growth and development can be negatively affected, even with low fluoride content in the soil. The microbial bioremediation processes involve bioaccumulation, biotransformation, and biosorption. Bacterial, fungal, and algal biomass are ecologically efficient bioremediators. Most bioremediation techniques are laboratory-scale based on contaminated solutions; however, treatment of fluoride-contaminated wastewater at an industrial scale is yet to be investigated. Therefore, this review recommends the practical applicability and sustainability of microbial bioremediation of fluoride in different environments.

show abstract

“…Noticeably, the perchlorate has been listed to be inorganic pollutants by US Environment Protection Agency (EPA), and the noxious of nitrate can cause sustainability and environmental matters for aquatic environments even at low levels. , Therefore, such cationic MOFs containing unfriendly anions can pose a secondary pollution in the process of elimination of TcO 4 – from contaminated environments, which has become a negligible problem in MOF sorbents. World Health Organization (WHO) presents the permissible limit of chloride in water, exceeding other SO 4 2– , NO 3 – and ClO 4 – . − Therefore, it can be seen from the permissible limit that the chloride ion is less harmful than other ions, that is, relatively safe. Part of cationic polymers has adopted the strategy of employing Cl – to replace perniciousness anions for elimination of ReO 4 – by anion exchange. ,, To counter this defect of MOFs, chloride salt agents might be a conceivable better candidate as a source of metal nodes for synthesis of the cationic MOF.…”

Section: Introductionmentioning

confidence: 99%

Two-Fold Interlocking Cationic Metal–Organic Framework Material with Exchangeable Chloride for Perrhenate/Pertechnetate Sorption

Kang

Zhang

et al. 2022

Inorg. Chem.

View full text Add to dashboard Cite

Albeit reported substantial sorbents for elimination of TcO 4 − , the issue of secondary contamination caused by released counterions (such as NO 3 − ) from the cationic metal−organic framework (MOF) has not come into the sufficient limelight for researchers. Herein, our efforts are dedicated to settle the matter through synthesis of NiCl 2 based on the cationic MOF (ZJU-X4). Less harmful chlorides are used as exchangeable anions for replacing hazardous anions. Notably, ZJU-X4 exhibited fast sorption kinetics, high sorption capacity of 395 mg/g, decent selectivity, and excellent reusability in four recycles. The results of ion chromatography revealed that the released chloride ion was equal to sorption of target ions, and pair distribution functions were employed to analyze the changes in ZJU-X4 after sorption of ReO 4 − , clearly elucidating the anion-exchange mechanism. Furthermore, in the dynamic sorption experiments, ReO 4 − could be facilely and effectively removed and recovered, showing the value of practical applications. This work indicated that cationic MOFbased metal chloride salts would be a better choice for anionic sorbents.

show abstract

Groundwater nitrate and fluoride profiles, sources and health risk assessment in the coal mining areas of Salt Range, Punjab Pakistan

Cited by 27 publications

References 41 publications

Groundwater Environment and Health Risk Assessment in an In Situ Oil Shale Mining Area

Groundwater Environment and Health Risk Assessment in an In Situ Oil Shale Mining Area

Bioaccumulation of Fluoride in Plants and Its Microbially Assisted Remediation: A Review of Biological Processes and Technological Performance

Two-Fold Interlocking Cationic Metal–Organic Framework Material with Exchangeable Chloride for Perrhenate/Pertechnetate Sorption

Contact Info

Product

Resources

About