An analysis of the versatility and effectiveness of composts for sequestering heavy metal ions, dyes and xenobiotics from soils and aqueous milieus

Mudhoo, Ackmez; Ramasamy, Deepika Lakshmi; Bhatnagar, Amit; Usman, Muhammad; Sillanpää, Mika

doi:10.1016/j.ecoenv.2020.110587

Cited by 78 publications

(24 citation statements)

References 320 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This lends support to the hypothesis that it is the chemical functionality of the humins that leads to the enhanced adsorption of antimony ions. In particular, the carboxylate functionality present offers a stronger interaction with antimony compared to (nonchemically treated and hence unfunctionalized) activated carbon. , Various studies have reported the removal of antimony from water, and these studies have highlighted the importance of the presence of carboxylic groups . In particular, Castaldi and co-workers showed that antimony can be removed by chelation with citric and oxalic acids before addition of ethylenediaminetetraacetic acid (EDTA) …”

Section: Resultsmentioning

confidence: 99%

“…49,50 Various studies have reported the removal of antimony from water, and these studies have highlighted the importance of the presence of carboxylic groups. 51 In particular, Castaldi and co-workers showed that antimony can be removed by chelation with citric and oxalic acids before addition of ethylenediaminetetraacetic acid (EDTA). 52 An analysis of the fitting with the Freundlich isotherm suggests that activated carbon has an adsorption capacity of 214 mg/g compared to around 341 mg/g for [bmim][OTf].…”

Section: ■ Results and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Characterization and Valorization of Humins Produced by HMF Degradation in Ionic Liquids: A Valuable Carbonaceous Material for Antimony Removal

Ghatta

Zhou

Casarano

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

The processing of biomass in ionic liquids has demonstrated many benefits compared to organic solvents. This includes the maximization of 5-hydroxymethylfurfural (HMF) yield from sugars through the suppression of byproducts, such as formic acid and levulinic acid. Inefficiencies still exist due to the low stability of HMF at high temperature, leading to side reactions which ultimately result in the undesirable formation of humins. Valorization of this polymeric side product is thus needed to improve the economics of the biorefinery and could lead to humins being viewed as valuable materials for various applications. However, a much better understanding is needed of how humins form from HMF in the various ionic liquids proposed for the biorefinery. In this contribution, humin formation is probed by a range of analytical techniques, including FT-IR, SEM, solid state 13 C NMR, MS, GPC and XPS. This reveals that the structure and morphology of the humins formed does not resemble those reported in the literature and the material displays a number of unique aspects. The hydrogen bonding proprieties of the ionic liquids employed exert a strong influence on the chemical functionality of the humins and this is used to demonstrate their potential as functional materials. To demonstrate this, the humins produced in various ionic liquid environments are applied to metal extraction and compared with commercial activated carbon. This revealed that humins are superior for the extraction of antimony ions from waste water, showing promise as an adsorbent additive for water purification.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Characterization and Valorization of Humins Produced by HMF Degradation in Ionic Liquids: A Valuable Carbonaceous Material for Antimony Removal

Ghatta

Zhou

Casarano

et al. 2021

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…Guo et al [33] reviewed the agronomic functions of biochar as a compost additive and soil improver. Mudhoo et al [34] described the application of composting materials to decolorize and remove dye. Soudejani et al [35] discussed the latest developments in applying zeolite during composting of organic solid waste.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Remediation in Sludge Compost: Recent Progress

Xiong¹,

Gao²,

Tu³

et al. 2022

Journal of Renewable Materials

View full text Add to dashboard Cite

The safe and efficient disposal and utilization of sludge are major issues to be solved in solid waste treatment and environmental protection due to the complex characteristics of sludge and the low rate of innocuous treatments. Composting is a process of decomposing organic matter and transformed low-molecular organic acids into highmolecular humus substances under the action of microorganisms. Although land-use after composting has become an important direction for sludge treatment, heavy metal pollution is still the bottleneck problem restricting land use of sludge compost. Adding zeolite, hydroxyapatite, and other conditioning agents to the composting process affects the concentration or form of some heavy metals and effectively reduces the environmental risk. Lime and phosphorus modifiers change heavy metal speciation in samples, playing a role in decreasing biological availability and mobility. In this study, the effects of sludge composting treatment and conditioning agents on the concentrations and forms of heavy metals are reviewed. This review will provide a theoretical basis to treat heavy metals in sludge composting and lay the foundation for the land utilization and waste recycling of sludge. KEYWORDSSludge compost; heavy metal; conditioning agents; remediation Sludge treatment includes sanitary landfill, incineration, constructed wetland, composting and other methods. Sanitary landfill method has the advantages of simplicity, easy operation, low cost and strong adaptability. Although the most common method is sanitary landfilling in China, the future of sanitary landfilling is doubtful. The stability problem resulting from the poor physical nature of sludge and limited This work is licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

show abstract

“…Hence, there is a need to look for methods to reduce pesticide migration in the environment and implement new solutions based on the adsorption process [4,5,[8][9][10]. Several studies show that composts produced from organic materials, including sewage sludge, can be effective sorbents [11]. They were used on a laboratory scale to remove heavy metals [12][13][14], dyes [15], or plant protection chemicals [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

“…They were used on a laboratory scale to remove heavy metals [12][13][14], dyes [15], or plant protection chemicals [16][17][18]. However, the effectiveness of composts, especially in removing plant protection chemicals, may differ as it depends on many factors, including the structure and affinity of individual active ingredients to humic substances contained in the composts [11].…”

Section: Introductionmentioning

confidence: 99%

Application of an Adsorption Process on Selected Materials, Including Waste, as a Barrier to the Pesticide Penetration into the Environment

2022

View full text Add to dashboard Cite

The article presents research on using the adsorption process of aldrin (a chloro-organic pesticide that most often occurs in the environment near expired pesticide burials). The research used three sorbents: two activated carbons and compost from sewage sludge as a low-cost sorbent. Obtained adsorption isotherms belong to the L group according to the Giles classification. The test results and their analysis confirm that the IZO application facilitates the analysis of the adsorption process. The study results also confirm that compost can be a cost-effective alternative to commercial activated carbons to build barriers protecting the environment against existing leaking expired pesticide burials.

show abstract

An analysis of the versatility and effectiveness of composts for sequestering heavy metal ions, dyes and xenobiotics from soils and aqueous milieus

Cited by 78 publications

References 320 publications

Characterization and Valorization of Humins Produced by HMF Degradation in Ionic Liquids: A Valuable Carbonaceous Material for Antimony Removal

Characterization and Valorization of Humins Produced by HMF Degradation in Ionic Liquids: A Valuable Carbonaceous Material for Antimony Removal

Heavy Metal Remediation in Sludge Compost: Recent Progress

Application of an Adsorption Process on Selected Materials, Including Waste, as a Barrier to the Pesticide Penetration into the Environment

Contact Info

Product

Resources

About