A review of reactive media within permeable reactive barriers for the removal of heavy metal(loid)s in groundwater: Current status and future prospects

Song, Jiangmin; Huang, Guanxing; Han, Dongya; Hou, Qinxuan; Gan, Lin; Zhang, Meng

doi:10.1016/j.jclepro.2021.128644

Cited by 67 publications

(14 citation statements)

References 179 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although the mechanisms/methods for the elimination of heavy metals are numerous, they can be organized into one sort: non-destructive mechanisms like adsorption, ion exchange, surface complexation, and precipitation that sequester or immobilize metal(loid) ions and hence decrease their content in groundwater are described [ 77 ]. The mechanism of adsorption is determined by the physicochemical properties of the adsorbent and heavy metals, as well as the operating circumstances (i.e., temperature, pH value, adsorption time, adsorbent amount, and initial content of metal ions) [ 78 ].…”

Section: Evaluation Of Heavy Metal Pollutionmentioning

confidence: 99%

“…Children in the Daye Copper Smelter (DCS) region were exposed to Cd, As, and Pb exposure levels up to 30.25 times higher than the acceptable level of 1, and most hazards were through ingestion of soil, drinking water, crops, and fish, according to [ 117 ]. Also, the USEPA has recognized arsenic as the primary carcinogen that causes cancer in humans when ingested [ 77 ]. Certain Sb compounds are believed to be dangerous to human health—even cancerous [ 107 ].…”

Section: Evaluation Of Heavy Metal Pollutionmentioning

confidence: 99%

See 1 more Smart Citation

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Adnan

Xiao

et al. 2022

Toxics

View full text Add to dashboard Cite

Contamination by heavy metals is a significant issue worldwide. In recent decades, soil heavy metals pollutants in China had adverse impacts on soil quality and threatened food security and human health. Anthropogenic inputs mainly generate heavy metal contamination in China. In this review, the approaches were used in these investigations, focusing on geochemical strategies and metal isotope methods, particularly useful for determining the pathway of mining and smelting derived pollution in the soil. Our findings indicate that heavy metal distribution substantially impacts topsoils around mining and smelting sites, which release massive amounts of heavy metals into the environment. Furthermore, heavy metal contamination and related hazards posed by Pb, Cd, As, and Hg are more severe to plants, soil organisms, and humans. It’s worth observing that kids are particularly vulnerable to Pb toxicity. And this review also provides novel approaches to control and reduce the impacts of heavy metal pollution. Hydrometallurgy offers a potential method for extracting metals and removing potentially harmful heavy metals from waste to reduce pollution. However, environmentally friendly remediation of contaminated sites is a significant challenge. This paper also evaluates current technological advancements in the remediation of polluted soil, such as stabilization/solidification, natural attenuation, electrokinetic remediation, soil washing, and phytoremediation. The ability of biological approaches, especially phytoremediation, is cost-effective and favorable to the environment.

show abstract

Section: Evaluation Of Heavy Metal Pollutionmentioning

confidence: 99%

Section: Evaluation Of Heavy Metal Pollutionmentioning

confidence: 99%

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Adnan

Xiao

et al. 2022

Toxics

View full text Add to dashboard Cite

show abstract

“…The recent increasing trend of urbanization and industrialization has contaminated the water including aquifers in the ground. [35][36][37][38][39][40][41][42][43] Pure water for drinking and other purposes has to be demanded as the indicator of development. [44][45][46][47][48][49][50][51][52] Therefore, researchers are looking for special concerns to treat and decontaminate wastewater.…”

Section: Bio-nanocomposite For Wastewater Treatmentmentioning

confidence: 99%

“…The recent increasing trend of urbanization and industrialization has contaminated the water including aquifers in the ground [35–43] . Pure water for drinking and other purposes has to be demanded as the indicator of development [44–52] .…”

Section: Bio‐nanocomposite For Wastewater Treatmentmentioning

confidence: 99%

Versatile Applications Of Biopolymer Nanocomposites: A review

et al. 2022

View full text Add to dashboard Cite

Biopolymers having biodegradable and biocompatible characteristics have been gained a great interest of scientists for using various applications in the field of advanced sciences exclusively with nanotechnology of separation and purification field. Different exciting applications have been found in the versatile field including energy production, wastewater treatment, sensor development, food packaging and broadly in the biomedical sciences. Biopolymer can be applied to increase the capabilities of other bio‐active molecules in a material. Now dyes, scientists are concentrated for preparing more environment friendly nanomaterials and increasing attention for immobilizing of contaminates and adoption by using green chemistry approaches. This review has been summarized the vital applications of biopolymer and highlighted with their owned advantages and limitations of numerous field by reported studies. The possible mechanistic insights of diverse applications of biopolymers were discussed. This review has been finds the efficiencies of biopolymers in the major field of sciences and were considered as the outstanding materials due to their exciting physic‐chemical properties and other characteristics include eco‐friendly nature, low cost, nontoxic, high adsorption capacity and reusability. This review could be considered as a precious pathway for exploring more low‐cost, environmental friendly hybrid materials for versatile applications including water decontamination, sensing of targeted elements and other biomedical purposes, eventually the review will contribute to environmental remediation and purification applications of biomaterials.

show abstract

“…In addition, when the concentration of heavy metals in water is low, these methods have the problems of low efficiency or high cost. Moreover, they may produce secondary waste that is more difficult to treat than raw wastewater [ 9 , 10 ]. These shortcomings have prompted researchers to seek both economical and efficient technologies to treat heavy metal-contaminated water [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Removal of Zn2+ from Aqueous Solution Using Biomass Ash and Its Modified Product as Biosorbent

Xing

Peng

2022

IJERPH

View full text Add to dashboard Cite

To study the removal effect of bottom ash of biomass power plants and its modified products on zinc (Zn2+) in aqueous solution, a series of indoor experiments is carried out. The aim of this work is to explore a method to improve the ability of biomass ash to remove Zn2+ from aqueous solution and obtain its adsorption characteristics of Zn2+ in aqueous solution; on this basis, the feasibility of its application in the treatment of Zn2+-contaminated wastewater is analyzed. The mesoporous siliceous material is used to modify the biomass, and the modified material is functionalized with 3-aminopropyltriethoxysilane. The results show that the specific surface area of modified biomass ash is nine times that of the material before modification. The adsorption capacity of Zn2+ on the material increases with the increase of pH, and pH 6 is the optimum pH to remove Zn2+ from the aqueous solution. The Langmuir model and Freundlich model can show better fits for biomass ash and the modified material, respectively. Thermodynamic analysis results show that the adsorption of Zn2+ is spontaneous and endothermic in nature. The adsorption of Zn2+ onto biomass and modified biomass ash follow pseudo-first-order and pseudo-second-order kinetics, respectively.

show abstract

A review of reactive media within permeable reactive barriers for the removal of heavy metal(loid)s in groundwater: Current status and future prospects

Cited by 67 publications

References 179 publications

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Research Progress on Heavy Metals Pollution in the Soil of Smelting Sites in China

Versatile Applications Of Biopolymer Nanocomposites: A review

Removal of Zn2+ from Aqueous Solution Using Biomass Ash and Its Modified Product as Biosorbent

Contact Info

Product

Resources

About