Potassium enriched biochar production by thermal plasma processing of banana peduncle for soil application

Karim, Adnan Asad; Kumar, Manish; Singh, Saroj Kumar; Panda, C. S.; Mishra, B.K.

doi:10.1016/j.jaap.2016.12.009

Cited by 58 publications

(36 citation statements)

References 57 publications

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“…This indicated that biochar application improved the availability of soil potassium, probably because biochar made from corn straw contained free nutrient cations (e.g., potassium) that did not volatilize (e.g., nitrogen) or exist in an insoluble form (e.g., magnesium) during the pyrolysis process. Furthermore, the potassium was preserved and converted to potassium salts, which are highly soluble, during the production of biochar (Karim et al 2017). The increase in soil available potassium may also be due to short-term interactions and reactions between biochar and soil, such as dissolution and precipitation, adsorption and desorption, and redox reactions (Joseph et al 2010).The same results were also reported by McElligott (2011), who found that biochar application increased the availability of soil potassium.…”

Section: Impacts Of Biochar On Alkaline Soil Chemical Characteristicssupporting

confidence: 66%

Effects of corn straw biochar application on soybean growth and alkaline soil properties

Liu

Feng

Zhu

et al. 2020

BioRes

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Pot experiments were conducted to investigate the impact of biochar loading level on soybean growth and physico-chemical properties of alkaline soil. Biochar derived from corn straw was mixed with alkaline soil at 0%, 2.5%, 5%, and 10% loading levels and exposed to the natural elements. Soybean was used as the test crop. The results indicated that a single application of biochar positively and significantly improved soybean productivity and quality attributes of the tested alkaline soil. Soybean yield peaked at 5% loading level, but it declined at 10% loading. Applications of biochar at 5% and 10% loading significantly increased total soil porosity by 4.14% and 5.09%, and decreased the soil pH value by 0.07 and 0.24 units, respectively. Biochar addition significantly increased water holding capacity, total organic carbon content, total nitrogen, Olsen-P, available potassium, and cation exchange capacity. The results indicated that applications of corn straw biochar to alkaline soil improved soybean growth and promoted the physico-chemical properties of alkaline soil. However, the negative effects of increased C:N ratios and soil exchange sodium percentages at higher biochar loading levels should be taken into account when applying biochar as amendments to alkaline soils.

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Section: Impacts Of Biochar On Alkaline Soil Chemical Characteristicssupporting

confidence: 66%

Effects of corn straw biochar application on soybean growth and alkaline soil properties

Liu

Feng

Zhu

et al. 2020

BioRes

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“…Hence, specificities like hardwood lignin's syringyl absorption [46], at 1315 cm −1 , or the C-O deformation (1081 cm −1 ) due to secondary alcohols [47] in softwood lignin are obscured by the majority holocellulose content. The spectral features of BP are in agreement with literature values [11,48], with the main difference being the peaks in the sub 600 cm −1 region that stems from Si-O bonds in the gravel and sand retained in unwashed BP.…”

Section: Proximate Crude Fiber and Elemental Analysissupporting

confidence: 89%

“…Places like the Koyambedu Vegetable Market (Chennai, India) produce about 150 tons/day of VFW, of which peduncle is a major constituent [8]. However, only a handful of studies explored them as a feedstock for producing biochar [9][10][11]-most of them investigate a thermal plasma process, not the conventional slow pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Biochar from co-pyrolysis of urban organic wastes—investigation of carbon sink potential using ATR-FTIR and TGA

Nair

Mondal

Weichgrebe

2020

Biomass Conv. Bioref.

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Urban organic wastes (UOW) strain the infrastructures for solid waste treatment (SWT) in emerging economies. This study investigated biochar gained from three major UOW sources in India—banana peduncles (BP), a fibrous waste, from fruit markets; sewage sludge (SS) from wastewater treatment plants; and anaerobic digestate (AD) from food and market waste processing facilities—in terms of its potential to sequester and become long-term carbon sink in soils. Herein, the chemical properties (using ATR-FTIR) and thermal oxidative stability (using TGA) of biochars derived from these UOW and their three blends were examined. Biochar from SS and AD and the blends were found to possess more ash content, Cl, and alkali and alkaline earth metals (AAEM) than that from BP. The conventional recalcitrance index (R50) could not quantify and compare the stability of these mineral- and ash-rich biochars. Hence, a modified thermal oxidative recalcitrance index (TORi) is proposed. All the biochar from blends prepared at highest treatment temperature of 650 °C shows similar aromaticity. However, biochar from blend of 50% SS, 30%BP, and 20% AD exhibits the highest recalcitrance (TORi = 0.193) to become a long-term carbon sink in soil. More than aromaticity, the influence of Si, Fe, and AAEM on the biochar matrix affects its recalcitrance. Variations in the structural properties and recalcitrance of biochars from blends are attributable to the synergy among their constituents SS, AD, and BP. The determined TORi confirms the potential of biochar from the blends of UOW as a long-term carbon sink.

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“…Similarly, Vaughn et al (2018) produced biosolid biochar at 300, 400, 500, 700, and 900 °C, and the K contents were 3.89, 3.98, 4.06, 4.02, 8.12, and 9.83%, respectively. Karim et al (2017) evaluated the K-enrichment of banana peduncle biochar produced in the presence of different gases (Ar and O 2 ) and plasma with processing times of 3, 5, 7, and 9 min. They found that plasma processing for up to 7 min enriched the biochar with K in both Ar and O 2 environments.…”

Section: Potassiummentioning

confidence: 99%

Biochar and its importance on nutrient dynamics in soil and plant

Hossain

Bahar

Sarkar

et al. 2020

Biochar

393

125

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Biochar, an environmentally friendly soil conditioner, is produced using several thermochemical processes. It has unique characteristics like high surface area, porosity, and surface charges. This paper reviews the fertilizer value of biochar, and its effects on soil properties, and nutrient use efficiency of crops. Biochar serves as an important source of plant nutrients, especially nitrogen in biochar produced from manures and wastes at low temperature (≤ 400 °C). The phosphorus, potassium, and other nutrient contents are higher in manure/waste biochars than those in crop residues and woody biochars. The nutrient contents and pH of biochar are positively correlated with pyrolysis temperature, except for nitrogen content. Biochar improves the nutrient retention capacity of soil, which depends on porosity and surface charge of biochar. Biochar increases nitrogen retention in soil by reducing leaching and gaseous loss, and also increases phosphorus availability by decreasing the leaching process in soil. However, for potassium and other nutrients, biochar shows inconsistent (positive and negative) impacts on soil. After addition of biochar, porosity, aggregate stability, and amount of water held in soil increase and bulk density decreases. Mostly, biochar increases soil pH and, thus, influences nutrient availability for plants. Biochar also alters soil biological properties by increasing microbial populations, enzyme activity, soil respiration, and microbial biomass. Finally, nutrient use efficiency and nutrient uptake improve with the application of biochar to soil. Thus, biochar can be a potential nutrient reservoir for plants and a good amendment to improve soil properties.

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Potassium enriched biochar production by thermal plasma processing of banana peduncle for soil application

Cited by 58 publications

References 57 publications

Effects of corn straw biochar application on soybean growth and alkaline soil properties

Effects of corn straw biochar application on soybean growth and alkaline soil properties

Biochar from co-pyrolysis of urban organic wastes—investigation of carbon sink potential using ATR-FTIR and TGA

Biochar and its importance on nutrient dynamics in soil and plant

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