Comparative Sorption of Pb and Cd by Biochars and Its Implication for Metal Immobilization in Soils

Park, Jin Hee; Choppala, Girish; Lee, Seul Ji; Bolan, Nanthi; Chung, J. W.; Edraki, Mansour

doi:10.1007/s11270-013-1711-1

Cited by 115 publications

(53 citation statements)

References 39 publications

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“…Possibly, sorption mechanisms are highly dependent on soil type and the cations present in both biochar and soil. Some other compounds present in the ash, such as carbonates, phosphates or sulphates (Cao et al, 2009;Karimi et al, 2011;Park et al, 2013) can also help to stabilise heavy metals by precipitation of these compounds with the pollutants.…”

Section: Mechanism Of Interaction Between Biochar and Heavy Metalsmentioning

confidence: 99%

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Use of phytoremediation and biochar to remediate heavy metal polluted soils: a review

et al. 2014

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Abstract. Anthropogenic activities are resulting in an increase of the use and extraction of heavy metals. Heavy metals cannot be degraded and hence accumulate in the environment, having the potential to contaminate the food chain. This pollution threatens soil quality, plant survival and human health. The remediation of heavy metals deserves attention, but it is impaired by the cost of these processes. Phytoremediation and biochar are two sound environmental technologies which could be at the forefront to mitigate soil pollution. This review provides an overview of the state of the art of the scientific research on phytoremediation and biochar application to remediate heavy-metalcontaminated soils. Research to date has attempted only in a limited number of occasions to combine both techniques, however we discuss the potential advantages of combining both, and the potential mechanisms involved in the interaction between phytoremediators and biochar. We identified specific research needs to ensure a sustainable use of phytoremediation and biochar as remediation tools.

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Section: Mechanism Of Interaction Between Biochar and Heavy Metalsmentioning

confidence: 99%

“…However, only 5.6-14.1 % of acid-soluble Cd +2 was immobilised. Park et al (2013) compared the sorption capacity of two biochars, made from chicken manure and from green waste. They found chicken manure biochar more effective to immobilise Cd and Pb compared to green waste biochar.…”

Section: Mechanism Of Interaction Between Biochar and Heavy Metalsmentioning

confidence: 99%

Use of phytoremediation and biochar to remediate heavy metal polluted soils: a review

et al. 2014

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“…Application of biochar to agricultural soils has many proven positive effects such as reducing the phytotoxicity of heavy metals (Park et al ., , ), and increasing cation exchange capacity (Liang et al ., ), water‐use efficiency (Uzoma et al ., ), water‐holding capacity and retention of plant nutrients (Glaser et al ., ; Lehmann et al ., ), and improving the nutrient uptake and growth of plants (Gunes et al ., , ). The characteristics of biochar as a soil amendment depend on several factors, including the type of waste, its particle size and the pyrolysis conditions (Gunes et al ., ).…”

Section: Introductionmentioning

confidence: 99%

Effect of acid modification of biochar on nutrient availability and maize growth in a calcareous soil

Şahin

Taşkın

Kaya

et al. 2017

Soil Use and Management

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The nutritional quality of acid‐modified poultry manure biochar is unclear, so a better understanding of its properties and agronomic potential is needed. The biochar was modified with phosphoric acid (H3PO4) and nitric acid (HNO3) and a combination of the two, before and after pyrolysis. After characterization of biochar samples and determination of total and water‐soluble mineral element concentrations, biochars were applied to a calcareous soil at a rate of 0.5% (w/w) to find out their effects on the mineral nutrition and growth of maize. Treatment with H3PO4+ HNO3 enriches the biochar with phosphate, nitro groups and nitrate. The experimental results suggested that biochar modified with HNO3 and/or HNO3+H3PO4 after pyrolysis increased the water‐soluble phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), zinc (Zn), copper (Cu) and manganese (Mn) concentrations and increased plant‐available nutrients and plant growth by positively affecting the absorption of plant nutrients. The highest plant dry weight was obtained from biochar post‐treated with HNO3+H3PO4, and this was followed by HNO3‐ and H3PO4‐modified biochars. Premodification with HNO3+H3PO4 also significantly increased plant dry weights. The results of this study revealed that poultry manure biochar modified with HNO3 and H3PO4 can be used effectively in calcareous soil for the improvement of plant mineral nutrition.

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“…1) show that the PM-BC had a more uneven surface than the PB-BC and DS-BC. The higher surface area with an uneven surface implies that the PM-BC would have a higher adsorption capacity for heavy metals (Park et al 2013). From the properties of PM-BC, being high in pH, nutrient elements, and surface area together with an uneven surface shape, it was expected that PM-BC would not only be more effective at metal immobilization in soils but also at the enhancement of plant growth performance, when compared with the DS-BC and PB-BC.…”

Section: Properties Of Biocharmentioning

confidence: 99%

Examination of Three Different Organic Waste Biochars as Soil Amendment for Metal-Contaminated Agricultural Soils

Kim

et al. 2015

Water Air Soil Pollut

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The efficiency of biochars (BCs) derived from paper mill sludge (PM-BC), distillery sludge (DS-BC), and pruned branches from roadside trees (PB-BC) for immobilization of selected heavy metals (Cd and Zn) in agricultural soils was examined in the current study. This examination was conducted in order to elucidate whether the recycling of organic wastes could be used as a management option for metal-contaminated agricultural soils. Biochars were applied to contaminated upland soil exceeding the guideline values for Cd (4 mg kg −1 ) and Zn (300 mg kg −1 ) in Korea. Both the incubation study and the pot trial with lettuce cultivation were carried out using soil-BCs mixtures at 0, 1, 2, and 5 % (w/w). From the incubation study, it appears that BCs incorporated into the soil induces an increasing soil pH and a significant decline (Cd 36~100 %; Zn 54~100 %) in the phytoavailable metal pool examined by 1 M NH 4 NO 3 extraction. The PM-BC was most effective in the reduction of Cd and Zn phytoavailability, due to a significantly higher pH and surface area than the DS-BC and PB-BC. Similar results were observed in the pot trial, where the uptake of heavy metals by lettuce greatly declined with PM-BC incorporation (Cd 26~71 %; Zn 28~45 %). PM-BC enhanced the lettuce growth performance evidenced by the highest yield of lettuce being observed with PM-BC-treated soils at 5 %. This was attributed to retardation of the metal toxic effect induced by a decrease in Cd accumulation, while the increased nutrient elements originated from PM-BC. This present study indicates that paper mill sludge is a great candidate for biochar production that can be utilized as a soil amendment for metalcontaminated agricultural soils.

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Comparative Sorption of Pb and Cd by Biochars and Its Implication for Metal Immobilization in Soils

Cited by 115 publications

References 39 publications

Use of phytoremediation and biochar to remediate heavy metal polluted soils: a review

Use of phytoremediation and biochar to remediate heavy metal polluted soils: a review

Effect of acid modification of biochar on nutrient availability and maize growth in a calcareous soil

Examination of Three Different Organic Waste Biochars as Soil Amendment for Metal-Contaminated Agricultural Soils

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