Comparative adsorption of Pb2+ and Cd2+ by cow manure and its vermicompost

Zhu, Wenjie; Du, Wenhui; Shen, Xuyang; Zhang, Hangjun; Ding, Ying

doi:10.1016/j.envpol.2017.04.048

Cited by 48 publications

(9 citation statements)

References 30 publications

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“…In the Cd adsorption test using the batch method, the maximum adsorption amount of Cd to FBWA showed higher or comparable levels than those of the other amendments obtained from organic wastes in recent reports (Table S6 in the SI) 30, [39][40][41][42][43][44][45] .…”

Section: Balance Of CD From Soil To Brown Ricementioning

confidence: 82%

Variations in Cadmium Concentrations in Rice and Oxidation-Reduction Potential at the Soil Surface with Supplementation of Fermented Botanical Waste-based Amendment in Large-scale Farmland

Wada

Itabashi

et al. 2020

ANAL. SCI.

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We monitored the relationship between cadmium (Cd) concentration uptake of rice and oxidationreduction potential (ORP) at the soil surface with supplementation of fermented botanical wastebased amendment (FBWA), an organic fertilizer prepared from woody and food wastes. This study was carried out for 3 years in the western part of Jiangsu Province, China. It was found that the Cd concentration taken up by rice was correlated to a decreased ORP of the cultivated soil. The yield of rice was ~1.20 times higher than that of the control plot. The effects of reducing Cd content in rice and increasing rice yield remained for 2 years after FBWA application. Finally, Cd in the soil was immobilized by adsorption to FBWA or the decomposed products. The ORP measurement during rice cultivation might be a key index to predict the suppression effect of Cd uptake into the rice or limitation of the sustainable effect by the FBWA.

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Section: Balance Of CD From Soil To Brown Ricementioning

confidence: 82%

Variations in Cadmium Concentrations in Rice and Oxidation-Reduction Potential at the Soil Surface with Supplementation of Fermented Botanical Waste-based Amendment in Large-scale Farmland

Wada

Itabashi

et al. 2020

ANAL. SCI.

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“…However, studies using vermicompost and similar materials (composted solid residues) to retain metallic cations from single aqueous solutions can be used to compare adsorption affinities. In this context, Zhu et al 14 Treatment procedures for aqueous media based on adsorption processes, such as the one presented in this study, generate an environmental liability, which is characterized by the adsorbent mass enriched with various metals. Therefore, safe alternatives for the allocation of such environmental liabilities should be carefully evaluated.…”

Section: Resultsmentioning

confidence: 99%

Use of Vermicompost for the Removal of Toxic Metal Ions of Synthetic Aqueous Solutions and Real Aqueous Waste

2018

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Samples of vermicompost were used to decontaminate aqueous media containing Cd2+, Cu2+, Mn2+, Ni2+, Pb2+ and/or Zn2+ at concentration up to 10X higher than the limits of National Council of the Environment (Resolution 430/2011). For this purpose, 50.00 mL of synthetic solutions and wastewater from a chemical laboratory were stirred with dried vermicompost (~10.0000 g), in natura or with diameter ≤ 0.053 mm. Aqueous media were treated with vermicompost, either at rest (24, 48, 72, and/or 96 h) or under mechanical agitation (2, 4, 6, 8, and/or 10 h). All elements were spectrometrically determined in the different supernatants. In the synthetic solutions, except for Mn2+and Zn2+, all cations were undetectable (concentrations lower than the legal limits), when in natura vermicompost was used. After treating synthetic solutions with sieved vermicompost, Cd2+, Cu2+, Ni2+, Pb2+ e Zn2+ concentrations were undetectable, while Mn2+ concentrations were too close to the legal limits. In the wastewater, Cd2+and Pb2+ concentrations, which were 1.5 and 3.8X higher than the legal limits, respectively, were undetectable after treatment with vermicompost in natura. Besides its efficiency of retaining the evaluated metallic cations, vermicompost was able to increase the aqueous media pH from 0.9 to 6.0 ± 0.5.

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“…The use of environmentally undesired wastes to purify polluted industrial and environmental waters from metal ions is a field of applied research of growing interest 3,[13][14][15]17 . Thus, in an era environmentally wise, several materials have been tested with a mechanistic approach, even if they do not uptake metal ions in their natural function.…”

Section: Discussionmentioning

confidence: 99%

Metal ion removal using waste byssus from aquaculture

Montroni

Giusti

Simoni

et al. 2020

Sci Rep

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Byssus is a thread-like seafood waste that has a natural high efficiency in anchoring many metal ions thanks to its richness of diverse functional groups. It also has structural stability in extreme chemical, physical and mechanical conditions. The combination of these properties, absent in other waste materials, has novelty suggested its use as matrix for water remediation. Thus, pristine byssus, upon de-metalation, was studied to remove metal ions from ideal solutions at pH 4 and 7, as model chemical systems of industrial and environmental polluted waters, respectively. The byssus matrix’s uptake of metal ions was determined by ICP-OES and its surface microstructure investigated by SEM. The results showed that the byssus matrix excellently uptakes metal ions slightly reorganizing its surface micro-structure. As example of its efficiency: 50 mg of byssus absorbed 21.7 mg·g−1 of Cd2+ from a 10 mM solution at pH 7. The adsorption isotherm models of Freundlich and Langmuir were mainly used to describe the system at pH 7 and pH 4, respectively. In conclusion, we showed that the byssus, a waste material that is an environmental issue, has the potential to purify polluted industrial and environmental waters from metal ions.

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Comparative adsorption of Pb2+ and Cd2+ by cow manure and its vermicompost

Cited by 48 publications

References 30 publications

Variations in Cadmium Concentrations in Rice and Oxidation-Reduction Potential at the Soil Surface with Supplementation of Fermented Botanical Waste-based Amendment in Large-scale Farmland

Variations in Cadmium Concentrations in Rice and Oxidation-Reduction Potential at the Soil Surface with Supplementation of Fermented Botanical Waste-based Amendment in Large-scale Farmland

Use of Vermicompost for the Removal of Toxic Metal Ions of Synthetic Aqueous Solutions and Real Aqueous Waste

Metal ion removal using waste byssus from aquaculture

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