Preparation, characterization and agri applications of biochar produced by pyrolysis of sewage sludge at different temperatures

Raj, Abhay; Yadav, Ashutosh; Arya, Shashi; Sirohi, Ranjna; Kumar, Sunil; Rawat, Abhay Prakash; Thakur, Ravindra Singh; Patel, Devendra Kumar; Bahadur, Lal; Pandey, Ashok

doi:10.1016/j.scitotenv.2021.148722

Cited by 40 publications

(8 citation statements)

References 58 publications

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“…Biomass pyrolyzed at high temperatures will produce biochar with a porous structure, large surface area, and high pH value. Pyrolysis temperature is a crucial parameter in controlling the yield and quality of biochar, 26 and it will also affect the surface area and functional groups of biochar. 27 Fig.…”

Section: Resultsmentioning

confidence: 99%

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Preparation of a microbial char adsorbent from polyethyleneimine-modified and nickel-loaded microorganisms for efficient removal of metronidazole

Hu,

Liu,

Fang

et al. 2024

Environ. Sci.: Water Res. Technol.

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Section: Resultsmentioning

confidence: 99%

“…Higher temperatures may lead to the chemical rearrangement of biochar, leading to structural collapse and pore plugging, reducing the adsorption activity of biochar. 26 The subsequent pyrolysis temperature was 700 °C.…”

Section: Optimization Of Pyrolysis Conditionsmentioning

confidence: 99%

Preparation of a microbial char adsorbent from polyethyleneimine-modified and nickel-loaded microorganisms for efficient removal of metronidazole

Hu,

Liu,

Fang

et al. 2024

Environ. Sci.: Water Res. Technol.

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“…Toxic metal concentrations like Cr Chinese cabbage (Brassica rapa subsp. pekinensis) , fenugreek (Trigonella foenumgraecum) (Raj et al, 2021), lettuce (Lactuca sativa) (Nigussie et al, 2012), radish (Nabavinia et al, 2015), maize (Abbas et al, 2020), rice (Khan S. et al, 2013), barley (Rajput et al, 2021), mustard (Choppala et al, 2015) were substantially reduced by biochar application. In recent days, application of nZVI iron nanoparticles loaded maize straw pyrolyzed biochar significantly effect to minimize the toxicity of Cr in aqueous medium (Wei et al, 2022b).…”

Section: Biocharmentioning

confidence: 99%

Chromium toxicity, speciation, and remediation strategies in soil-plant interface: A critical review

et al. 2023

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In recent decades, environmental pollution with chromium (Cr) has gained significant attention. Although chromium (Cr) can exist in a variety of different oxidation states and is a polyvalent element, only trivalent chromium [Cr(III)] and hexavalent chromium [Cr(VI)] are found frequently in the natural environment. In the current review, we summarize the biogeochemical procedures that regulate Cr(VI) mobilization, accumulation, bioavailability, toxicity in soils, and probable risks to ecosystem are also highlighted. Plants growing in Cr(VI)-contaminated soils show reduced growth and development with lower agricultural production and quality. Furthermore, Cr(VI) exposure causes oxidative stress due to the production of free radicals which modifies plant morpho-physiological and biochemical processes at tissue and cellular levels. However, plants may develop extensive cellular and physiological defensive mechanisms in response to Cr(VI) toxicity to ensure their survival. To cope with Cr(VI) toxicity, plants either avoid absorbing Cr(VI) from the soil or turn on the detoxifying mechanism, which involves producing antioxidants (both enzymatic and non-enzymatic) for scavenging of reactive oxygen species (ROS). Moreover, this review also highlights recent knowledge of remediation approaches i.e., bioremediation/phytoremediation, or remediation by using microbes exogenous use of organic amendments (biochar, manure, and compost), and nano-remediation supplements, which significantly remediate Cr(VI)-contaminated soil/water and lessen possible health and environmental challenges. Future research needs and knowledge gaps are also covered. The review’s observations should aid in the development of creative and useful methods for limiting Cr(VI) bioavailability, toxicity and sustainably managing Cr(VI)-polluted soils/water, by clear understanding of mechanistic basis of Cr(VI) toxicity, signaling pathways, and tolerance mechanisms; hence reducing its hazards to the environment.

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“…The adsorption capacity of plant-derived biochar is affected by characteristic of biochar, such as biochar pH, specific surface area, element composition, cation exchange, oxygen-containing functional groups [19][20][21], as well as preparation condition, such as temperature, rate and time [22], and adsorption conditions, such as initial pH value and initial dosage [23,24], and heavy metal ion types, properties [18,25]. The differences in these factors have a significant impact on the properties and the adsorption capacities of biochar for metal ions.…”

Section: Introductionmentioning

confidence: 99%

Capacity and Mechanisms of Pb(II) and Cd(II) Sorption on Five Plant-based Biochars

Yu¹,

Sun²,

Pei³

et al. 2023

Preprint

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China is a large agricultural country that produces a large amount of crop straw every year. Thus, the development of cost-effective and economic application of invasive plants is warranted. Biochars derived from crop straw has been proven to be promising for adsorbent materials. However, less studies have focused on biochar derived from different types of crop straw as adsorbent under the same conditions to compare their adsorption performance. Here, we characterized the five biochars in the same system (600 ℃). In results, GBC has higher ash content, pH, CEC, specific surface area, mineral composition and oxygen-containing functional groups. The adsorption kinetics can be explained adequately by pseudo-second-order model and Langmuir model, indicating that the adsorption behavior of the biochar is both physical adsorption and chemical adsorption, the adsorption process includes complexation reaction, cationic π bond, ion precipitation and electrostatic adsorption. In conclusion, GBC exhibited higher metal equilibrium adsorption capacities (125 mg·g-1 for Pb2+, 29 mg·g-1 for Cd2+). The solution pH, biochar dosing, pyrolysis temperature and the properties of these heavy metals were responsible for adsorption capacity, thus showing stronger affinity and better adsorption effect. Our results are important for the selection and utilization of plant-based biochar for different heavy metals.

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Preparation, characterization and agri applications of biochar produced by pyrolysis of sewage sludge at different temperatures

Cited by 40 publications

References 58 publications

Preparation of a microbial char adsorbent from polyethyleneimine-modified and nickel-loaded microorganisms for efficient removal of metronidazole

Preparation of a microbial char adsorbent from polyethyleneimine-modified and nickel-loaded microorganisms for efficient removal of metronidazole

Chromium toxicity, speciation, and remediation strategies in soil-plant interface: A critical review

Capacity and Mechanisms of Pb(II) and Cd(II) Sorption on Five Plant-based Biochars

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