Engineered biochar as a tool for nitrogen pollutants removal: preparation, characterization and sorption study

Víglašová, Eva; Galamboš, Michal; Diviš, David; Danková, Zuzana; Daňo, Martin; Krivosudský, Lukáš; Lengauer, Christian L.; Matík, Marek; Briančin, Jaroslav; Soja, Gerhard

doi:10.5004/dwt.2020.25750

Cited by 25 publications

(16 citation statements)

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“…The high porosity of slow pyrolysis biochar formed from cotton and sewage sludge had maximum sorption ability of 1.761 mg g −1 and 2.586 mg g −1 [ 81 ]. Another source indicated that bamboo biochar was able to reduce nitrogen species from water [ 82 ]. The maximum sorption ability in this case was 10.35 mg g −1 in the unaltered biochar but greater for modified biochar [ 82 ].…”

Section: Environmental Benefitmentioning

confidence: 99%

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A Review on Current Status of Biochar Uses in Agriculture

et al. 2021

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In a time when climate change increases desertification and drought globally, novel and effective solutions are required in order to continue food production for the world’s increasing population. Synthetic fertilizers have been long used to improve the productivity of agricultural soils, part of which leaches into the environment and emits greenhouse gasses (GHG). Some fundamental challenges within agricultural practices include the improvement of water retention and microbiota in soils, as well as boosting the efficiency of fertilizers. Biochar is a nutrient rich material produced from biomass, gaining attention for soil amendment purposes, improving crop yields as well as for carbon sequestration. This study summarizes the potential benefits of biochar applications, placing emphasis on its application in the agricultural sector. It seems biochar used for soil amendment improves nutrient density of soils, water holding capacity, reduces fertilizer requirements, enhances soil microbiota, and increases crop yields. Additionally, biochar usage has many environmental benefits, economic benefits, and a potential role to play in carbon credit systems. Biochar (also known as biocarbon) may hold the answer to these fundamental requirements.

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Section: Environmental Benefitmentioning

confidence: 99%

“…Another source indicated that bamboo biochar was able to reduce nitrogen species from water [ 82 ]. The maximum sorption ability in this case was 10.35 mg g −1 in the unaltered biochar but greater for modified biochar [ 82 ].…”

Section: Environmental Benefitmentioning

confidence: 99%

A Review on Current Status of Biochar Uses in Agriculture

et al. 2021

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“…Obviously, biochar can be a beneficial soil amendment, such as (i) decreasing nutrients' leaching loss, (ii) increasing N and P mineralization, and (iii) enabling microbial mediation Nitrogen (N) is an essential nutrient for plant growth and productivity. The loss of N in the environment, through leaching, volatilization, and denitrification, potentially increases inorganic anions, such as nitrate (NO 3 − ) in groundwater, and raises greenhouse gas (GHG, e.g., N 2 O) emissions [8][9][10][11][12]. Biochar as a soil amendment can modify soil physical chemical properties, stimulate microbial activities, increase nutrient availability, and impact plant productivity [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

The Role of Biochar in Regulating the Carbon, Phosphorus, and Nitrogen Cycles Exemplified by Soil Systems

Pan

Dong

et al. 2021

Sustainability

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Biochar is a carbon-rich material prepared from the pyrolysis of biomass under various conditions. Recently, biochar drew great attention due to its promising potential in climate change mitigation, soil amendment, and environmental control. Obviously, biochar can be a beneficial soil amendment in several ways including preventing nutrients loss due to leaching, increasing N and P mineralization, and enabling the microbial mediation of N2O and CO2 emissions. However, there are also conflicting reports on biochar effects, such as water logging and weathering induced change of surface properties that ultimately affects microbial growth and soil fertility. Despite the voluminous reports on soil and biochar properties, few studies have systematically addressed the effects of biochar on the sequestration of carbon, nitrogen, and phosphorus in soils. Information on microbially-mediated transformation of carbon (C), nitrogen (N), and phosphorus (P) species in the soil environment remains relatively uncertain. A systematic documentation of how biochar influences the fate and transport of carbon, phosphorus, and nitrogen in soil is crucial to promoting biochar applications toward environmental sustainability. This report first provides an overview on the adsorption of carbon, phosphorus, and nitrogen species on biochar, particularly in soil systems. Then, the biochar-mediated transformation of organic species, and the transport of carbon, nitrogen, and phosphorus in soil systems are discussed. This review also reports on the weathering process of biochar and implications in the soil environment. Lastly, the current knowledge gaps and priority research directions for the biochar-amended systems in the future are assessed. This review focuses on literatures published in the past decade (2009–2021) on the adsorption, degradation, transport, weathering, and transformation of C, N, and P species in soil systems with respect to biochar applications.

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“…The positively charged surface (depending on pH) is typical advantages of non-engineered biochar, resulting in a relatively low sorption capacity of anionic contaminants [15,16]. Based on above mentioned facts, engineered biochars-produced by application-oriented, outcome-based modification, or synthesis-are developed as innovative sorbents with innovative properties for significant improvement of the environmental quality around contaminated regions, and to reduce and eliminate anionic pollutants eco-toxic effects [17][18][19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…For this purpose, the biochar composites detailed analysis of structure was described. Prepared and characterized materials were tested for sorption studies of nitrate from aqueous solutions [23].…”

Section: Introductionmentioning

confidence: 99%

Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar

et al. 2021

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The work deals with the evaluation of biochar samples prepared from Phyllostachys Viridiglaucescens bamboo. This evaluation consists of the characterization of prepared materials’ structural properties, batch and dynamic sorption experiments, and potentiometric titrations. The batch technique was focused on obtaining basic sorption data of 99mTcO4− on biochar samples including influence of pH, contact time, and Freundlich isotherm. ReO4−, which has very similar chemical properties to 99mTcO4−, was used as a carrier in the experiments. Theoretical modeling of titration curves of biochar samples was based on the application of surface complexation models, namely, so called Chemical Equilibrium Model (CEM) and Ion Exchange Model (IExM). In this case it is assumed that there are two types of surface groups, namely, the so-called layer and edge sites. The dynamic experimental data of sorption curves were fitted by a model based on complementary error function erfc(x).

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Engineered biochar as a tool for nitrogen pollutants removal: preparation, characterization and sorption study

Cited by 25 publications

References 0 publications

A Review on Current Status of Biochar Uses in Agriculture

A Review on Current Status of Biochar Uses in Agriculture

The Role of Biochar in Regulating the Carbon, Phosphorus, and Nitrogen Cycles Exemplified by Soil Systems

Pertechnetate/Perrhenate Surface Complexation on Bamboo Engineered Biochar

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