2,4-D adsorption to biochars: Effect of preparation conditions on equilibrium adsorption capacity and comparison with commercial activated carbon literature data

Kearns, Joshua; Wellborn, L.S.; Summers, R. Scott; Knappe, Detlef R.U.

doi:10.1016/j.watres.2014.05.023

Cited by 184 publications

(94 citation statements)

References 31 publications

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“…Recently, biochar has been considered as a potential surrogate for activated carbon in environmental remediation and water treatment due to its low cost, relative abundance and comparative sorptive abilities (Kearns et al, 2014). Non-activated biochar, i.e., biochar that has not undergone any physical, chemical or biological modifications to improve its sorptive properties, can also be used as a precursor material for the production of activated carbon (Lima and Marshall, 2005;Girods et al, 2009).…”

Section: Biochar or Activated Carbon?mentioning

confidence: 99%

“…The incorporation of unmodified/non-activated or tailored chars onto existing water treatment operations may open up opportunities for sustainable, low-capital water treatment solutions particularly, for small systems where conventional commercial adsorbents are cost-prohibitive (Kearns et al, 2014). Biochar is ubiquitous and can be attractive for water treatment applications in remote communities where it is logistically infeasible to install commercial adsorbents, e.g., in bioretention filters to control storm water run-off (Kearns et al, 2014;Mohanty and Boehm, 2014).…”

Section: Applying Biochars Tuned To Specific Water Treatment Applicatmentioning

confidence: 99%

“…To date, there has been a growing body of literature on the application of biochar in water treatment (Jung et al, 2013;Kearns et al, 2014;Reddy et al, 2014;Inyang et al, 2014b). In particular, the use of biochar for the removal of persistent organic pollutants from aqueous systems has been documented (Liu et al, 2012;Zheng et al, 2013;Xie et al, 2014a;Chen et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The potential role of biochar in the removal of organic and microbial contaminants from potable and reuse water: A review

2015

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Section: Biochar or Activated Carbon?mentioning

confidence: 99%

Section: Applying Biochars Tuned To Specific Water Treatment Applicatmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The potential role of biochar in the removal of organic and microbial contaminants from potable and reuse water: A review

2015

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“…If added to a field on a large scale, biochar has the potential to benefit global agriculture (Graber et al 2010) and mitigate climate change through long-term carbon sequestration, and also, potentially, by reducing emissions of potent greenhouse gases (Bruun et al 2011;El-Mahrouky et al 2015;Felber et al 2014). Biochar has also been considered for use as a potential alternative to activated charcoal in environmental remediation due to its low cost and comparative sorptive abilities (Jones et al 2011;Kearns et al 2014;Yao et al 2013). Enhanced adsorption to biochar can reduce the leaching of soil-applied pesticides (Jones et al 2011;Spokas et al 2009;Wang et al 2010) and thus decrease the risk of environmental contamination.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Biochar Amendment on Dimethyl Disulfide Emission and Efficacy Against Soil-Borne Pests

Wang

Fang

Yan

et al. 2016

Water Air Soil Pollut

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Biochar can potentially reduce fumigant emissions in agriculture. Dimethyl disulfide (DMDS) is an effective soil fumigant for controlling soil-borne pests. However, it is important to reduce DMDS emissions because the compound has an unpleasant and easily perceived sulfur odor. This study therefore aimed to determine the effects of two types of biochar amendments on DMDS bioactivity and emission, using bioassay methods and soil columns. The efficacy of DMDS for controlling root-knot nematode and Fusarium spp. was not reduced when the biochar used in this study was applied at a rate less than 2 and 0.5 % (on a weight basis), respectively. The biochar with high specific surface area (SSA 113 m −2 g −1 ) reduced the efficacy of DMDS against soil-borne pests more than the low SSA biochar (14 m −2 g −1 ). Increased doses of DMDS were able to offset decreases in the efficacy of DMDS in soils amended with biochars, except for high SSA biochar applied at a rate of 2 %. Biochar amendments applied to the soil surface at shallow depth can significantly reduce DMDS emission to the atmosphere. The results of this study will support decision-making about the practical use of biochar to reduce DMDS emissions.

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“…With biomass waste being the feedstock, biochar becomes more energy-efficient and less cost-intensive than commercial activated carbons. In some cases, it can be an alternative adsorbent [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Efficient Air Desulfurization Catalysts Derived from Pig Manure Liquefaction Char

Wallace

Suresh

Fini

et al. 2017

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Abstract:Biochar from the liquefaction of pig manure was used as a precursor of H 2 S desulfurization adsorbents. In its inorganic matter, it contains marked quantities of calcium, magnesium and iron, which are known as hydrogen sulfide oxidation catalysts. The char was used either as-received or mixed with 10% nanographite. The latter was added to increase both the content of the carbon phase and conductivity. ZnCl 2 in two different ratios of char to an activation agent (1:1 and 1:2) was used to create the porosity in the carbon phase. The content of the later was between 18-45%. The activated samples adsorbed 144 mg/g H 2 S. Sulfur was the predominant product of reactive adsorption. Its deposition in the pore system and blockage of the most active pores ceased the materials' activity. The presence of the catalytic phase was necessary but not sufficient to guarantee good performance. The developed porosity, which can store oxidation products in the resulting composite, is essential for the good performance of the desulfurization process. The surface of the composite with nanographite showed the highest catalytic activity, similar to that of the commercial Midas ® carbon catalyst. The results obtained indicate that a high quality reactive adsorbent/catalyst for H 2 S removal can be obtained from pig manure liquefaction wastes.

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2,4-D adsorption to biochars: Effect of preparation conditions on equilibrium adsorption capacity and comparison with commercial activated carbon literature data

Cited by 184 publications

References 31 publications

The potential role of biochar in the removal of organic and microbial contaminants from potable and reuse water: A review

The potential role of biochar in the removal of organic and microbial contaminants from potable and reuse water: A review

The Effects of Biochar Amendment on Dimethyl Disulfide Emission and Efficacy Against Soil-Borne Pests

Efficient Air Desulfurization Catalysts Derived from Pig Manure Liquefaction Char

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