Effects of modified zeolite on the removal and stabilization of heavy metals in contaminated lake sediment using BCR sequential extraction

Wen, Jia; Yi, Yuanjie; Zeng, Guangming

doi:10.1016/j.jenvman.2016.04.046

Cited by 152 publications

(41 citation statements)

References 32 publications

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“…Yanai et al (2006) showed that along with coarser textural particles, low pH (between 5 and 6) and high concentrations, resulted in more Cd uptake by Thalaspi caerulescens plant. Soil amendments or conditioners like biochar (Sarkar et al, 2005;Qin et al, 2013) or zeolite (Wen et al, 2016) are also able to modify soil textural and structural and thus diverting the mobility of some heavy metal ions (Zn, Pb, Cu and Cd). This could be due to the influence of soil amendments on plant rhizosphere and thus on PAH bioavailability (Gana et al, 2009;Marchal et al, 2014).…”

Section: Phytoremediation Of Hc and Soil Texturementioning

confidence: 99%

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Hajabbasi¹

2016

Afr. J. Environ. Sci. Technol.

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Petroleum and petrochemical hydrocarbons for some places are serious sources of environmental pollutants. To remediate these contaminants, phytoremediation, a relatively low cost and an environmental friendly technique is recommended more widely, now more than ever. Successful and effective applying of hydrocarbons phytoremediation depends mainly on the soil and plant types and conditions and microbial activities and the interactions between these three factors. Although for the last several decades, various plant and organism's species for the phytoremediation processes have been extensively studied, evaluating and characterizing soil properties, as an important objective for sustainable remediation and land use management, which had negligible considerations. An ideal soil for phytoremediation should have proper physical, chemical and biological characteristics to let the plant grow well and produce biomass as high as possible. It also should provide favorable conditions for microbial activities to perform efficient remediation. Soil physical characteristics such as texture, structure, water status and aeration are important factors affecting the microbial activities and consequently the degree of remediation potential. A better understanding of soil physical properties in conjunction with proper soil-plant-microbe management could be exploited to enhance the remediation of hydrocarbon contaminated soils and thus sustainable healthy environment.

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Section: Phytoremediation Of Hc and Soil Texturementioning

confidence: 99%

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Hajabbasi¹

2016

Afr. J. Environ. Sci. Technol.

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“…There are wide studies about zeolite to absorbing of heavy metals from industrial, urban, and agricultural wastewater. Wen et al (2016) show Zeolite is the best absorbent for Pb, Cu, Zn and Cd removal from wastewater (23). Akkajit P. et al (2013) in research of fractionation of Cd and Zn in Cd-contaminated soils amended by Vinasse, he shows the observed reduction in exchangeable Cd (BCR1) in the amended soils at the 3 % (w/w) application rate, the low total metal concentrations, and the significant amount of essential plant nutrients (N, P, and K) within these waste products highlight the benefits of amending metal-rich soils with them (27) (22).…”

Section: Discussionmentioning

confidence: 99%

“…Wen et al (2016) showed that Zeolite is the best absorbent for Pb, Cu, Zn, and Cd removal from wastewater (23).…”

Section: Introductionmentioning

confidence: 99%

Study of Zeolite and Vermiculite to Reduce Lead and Cadmium in Wastewater of Alcohol Factory

Haftlang

Mohsenifar

Bayati

2018

Jundishapur J Health Sci

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Background: The wastewater of alcohol plants is called Vinasse. After conversion of molasses to alcohol and other derivatives, this compound must be removed as waste from the factory. If released without careful planning and proper management and supervision, this wastewater can cause serious and several social, economic, and environmental consequences. Therefore, it is very important to eliminate heavy elements before the waste goes deep into the soil or to underground water reservoirs.

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“…The BCR procedure was basically a revised method of the five-stage sequential extraction procedure initially put forward by Tessier et al [23][24][25]. It has been widely used in the assessment of metal bioavailability in various matrices (e.g., sediment [26,27], soil [28,29], sludge [30,31], ash [32,33] and other industrial residues [34][35][36]). In this paper, a modified BCR process was used to analyze the speciation of the heavy metals in sewage sludge, brown soil, and fly ash.…”

Section: Extraction and Determination Methods For The Heavy Metalsmentioning

confidence: 99%

Synergistic Passivation of Fly Ash and TMT on Heavy Metals in Sewage Sludge

Wang¹,

Li²,

Wang³

et al. 2018

Sustainability

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Large amounts of fly ash and sewage sludge are produced annually in China. The treatment and disposal of such byproducts have become urgent problems that need to be solved. In order to achieve the possibility of realizing land applications for sewage sludge, fly ash and trimercapto-s-triazine trisodium salt (TMT) were used as immobilizing agents, and their passivation effects on four kinds of heavy metals (Cu, Ni, Pb, and Zn) were evaluated. The results showed that the resulting sewage sludge met Chinese standard GB/T23486-2009. When the addition was 10–20% fly ash or 0.4–0.6% TMT, the optimum immobilization effect was obtained. The synergistic passivation of 20% fly ash +0.5% TMT was superior to that of either fly ash or TMT alone. The addition of sewage sludge during the ryegrass growth process significantly increased the plant height, the number of tillers, the chlorophyll content, and the biomass of the ryegrass over the brown soil. The adverse effect of the heavy metals on the ryegrass growth could be alleviated by the passivation effect of fly ash and TMT. The immobilization performance of the fly ash was mainly due to the formation of precipitation and the ion exchange, while that of TMT was due to chelate precipitation.

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Effects of modified zeolite on the removal and stabilization of heavy metals in contaminated lake sediment using BCR sequential extraction

Cited by 152 publications

References 32 publications

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Importance of soil physical characteristics for petroleum hydrocarbons phytoremediation: A review

Study of Zeolite and Vermiculite to Reduce Lead and Cadmium in Wastewater of Alcohol Factory

Synergistic Passivation of Fly Ash and TMT on Heavy Metals in Sewage Sludge

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