Effect of steam activated biochar application to industrially contaminated soils on bioavailability of polycyclic aromatic hydrocarbons and ecotoxicity of soils

Kołtowski, Michał; Hilber, Isabel; Bucheli, Thomas D.; Oleszczuk, Patryk

doi:10.1016/j.scitotenv.2016.05.114

Cited by 60 publications

(21 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A positive effect (Hale et al, 2013, Domene et al, 2015, a negative effect (Hale et al, 2013), and no effect (Domene et al, 2015) on living organisms have been observed. As reported by Hale et al (2013) and Kołtowski et al (2016), the negative effect of biochar may result from the reduced bioavailability of water and nutrients, as well as from the presence of contaminants occurring in biochar and soil. Unfortunately, literature data on this subject are rather scarce and usually concern only the toxicity (Kołtowski et al, 2016) or phytotoxicity of biochar (Gondek and Mierzwa-Hersztek, 2017).…”

Section: Mierzwamentioning

confidence: 77%

See 1 more Smart Citation

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Mierzwa–Hersztek¹,

Gondek²,

Klimkowicz‐Pawlas³

et al. 2017

International Agrophysics

View full text Add to dashboard Cite

The variety of technological conditions and raw materials from which biochar is produced is the reason why its soil application may have different effects on soil properties and plant growth. The aim of this study was to evaluate the effect of the addition of wheat straw andMiscanthus giganteusstraw (5 t DM ha−1) and biochar obtained from this materials in doses of 2.25 and 5 t DM ha−1on soil enzymatic activity, soil ecotoxicity, and plant yield (perennial grass mixture with red clover). The research was carried out under field conditions on soil with the granulometric composition of loamy sand. No significant effect of biochar amendment on soil enzymatic activity was observed. The biochar-amended soil was toxic toVibrio fischeriand exhibited low toxicity toHeterocypris incongruens. Application of wheat straw biochar andM. giganteusstraw biochar in a dose of 5 t DM ha−1contributed to an increase in plant biomass production by 2 and 14%, respectively, compared to the soil with mineral fertilisation. Biochars had a more adverse effect on soil enzymatic activity and soil ecotoxicity toH. incongruensandV. fischerithan non-converted wheat straw andM. giganteusstraw, but significantly increased the grass crop yield.

show abstract

Section: Mierzwamentioning

confidence: 77%

“…Kołtowski et al (2016) reported that the ecotoxicity of soils depend on the parameters, type of biochar, contaminant source, and soil type. Nevertheless, the literature data on biochar effects on living organisms are inconsistent.…”

Section: Mierzwamentioning

confidence: 99%

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Mierzwa–Hersztek¹,

Gondek²,

Klimkowicz‐Pawlas³

et al. 2017

International Agrophysics

View full text Add to dashboard Cite

show abstract

“…For example, Koltowski et al (2017) showed that biochars activated by microwaves can reduce the eco-toxicity of the contaminated soil more effectively than the non-activated biochars, whereas biochars activated by CO 2 often aggravated the situation of soil eco-toxicity. Steam activated biochars showed the ability of reducing freely dissolved and bioaccessible fraction of PAHs in soil (Koltowski et al 2016). Unfortunately, most of the above-mentioned studies only focused on the short-term effects of newly prepared biochars, not on their toxicity changes after a long-term exposure in the environment.…”

Section: Dissolvable Contaminantsmentioning

confidence: 99%

Environmental behavior of engineered biochars and their aging processes in soil

Duan

Oleszczuk

Pan

et al. 2019

Biochar

Self Cite

View full text Add to dashboard Cite

In recent years, due to the broad application of biochars, the preparation, environmental behavior and aging processes of biochars have attracted wide attention globally, especially the modification of biochars. However, most of the studies only consider the improvement of biochar properties right after the modification, but neglect a complete evaluation of the longterm stability and eco-toxicity of these newly developed materials after entering the environment. With the development and utilization of biochars, engineered biochars (EngBCs) will soon enter the market, but its environmental risk still remains unclear. The literature does not provide adequate information on how aging of EngBCs will affect their properties, and indirectly impact the properties of soils (cycle of elements and organic matter). Therefore, this review paper summarizes the aging process and environmental risk of biochars, aiming at better understanding the interactions between EngBCs and soil components or pollutants. More importantly, this review is to point out the contradictory speculations of environmental behavior of EngBCs studied at the present stage. Due to the modification, the EngBCs stability may be significantly reduced. However, the formation of functional group on EngBCs will enhance their interaction with soil minerals to form biocharsmineral complex, and thus EngBCs could be protected. The impacts of EngBCs after entering the environment are also ambiguous. Therefore, understanding EngBCs environmental behavior is critical, which is helpful to reduce the potential risk and to produce EngBCs following the rule of sustainable development and safety to the environment.

show abstract

“…Recently, biochar amendment has been investigated to alleviate soil contamination and facilitate soil remediation (Chai et al, 2012;Houben et al, 2013;Koltowski et al, 2016;Ippolito et al, 2017). Existing literature reviews suggest that biochar amendment immobilizes heavy metals and POPs in contaminated soils and reduces their bioavailability primarily through precipitation, electrostatic interaction, surface adsorption, structural sequestration, and facilitated decomposition; the decontamination efficacy varies with the biochar source, amendment rate, soil type, and pollutant species (Ahmad et al, 2014;O'Connor et al, 2018;Zama et al, 2018;Kumpiene et al, 2019;Yuan et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Biochar-Facilitated Soil Remediation: Mechanisms and Efficacy Variations

Guo

Song

Tian

2020

Front. Environ. Sci.

171

View full text Add to dashboard Cite

Recent research suggests that biochar amendment is a promising approach to mitigate soil contamination via immobilizing heavy metals and organic pollutants. Through intensive literature review, this paper was aimed to better understand the processes, mechanisms, and effectiveness of biochar in immobilizing chemical contaminants in soil. The quality characteristics of biochar as a soil amendment varied greatly with the feedstock materials and the pyrolysis conditions. Biochar products from different sources demonstrated remarkably diversified capacities and efficiencies for stabilizing soil contaminants. Soil-incorporated biochar was able to stabilize Cd, Cu, Ni, Pb, and Zn and reduce their bioavailability through enhanced sorption (based on electrostatic attraction, ion exchange, and surface complexation) and chemical precipitation (incurred from soil pH elevation and ash addition of carbonates and phosphates). The stabilization efficacy was largely determined by cation exchange capacity, pH, and ash content of the biochar. Biochar amendment increased the mobility of anionic toxic elements [e.g., CrO 2− 4 , AsO − 3 , and Sb(OH) − 6 ] in soil. Soil-incorporated biochar was also able to adsorb non-polar organic compounds (through pore filling, partition, and hydrophobic effect) and polar organic compounds (via H-bonding, electrostatic attraction, specific interaction, and surface precipitation). The adsorption efficiency was controlled by the biochar surface properties specific surface area, microporosity, and hydrophobicity. Biochar may facilitate the mineralization of organic pollutants by enhancing soil microbial activities. The effectiveness of biochar-facilitated soil remediation was case specific, changing with the biochar source, amendment rate, placement, soil type, and pollutant species. More field studies are needed to evaluate the long-term effectiveness of biochar-facilitated soil remediation under practical circumstances.

show abstract

Effect of steam activated biochar application to industrially contaminated soils on bioavailability of polycyclic aromatic hydrocarbons and ecotoxicity of soils

Cited by 60 publications

References 39 publications

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Effect of wheat and Miscanthus straw biochars on soil enzymatic activity, ecotoxicity, and plant yield

Environmental behavior of engineered biochars and their aging processes in soil

Biochar-Facilitated Soil Remediation: Mechanisms and Efficacy Variations

Contact Info

Product

Resources

About