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Biochar Application in Environmental Remediation

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Environmental Sciences".

Deadline for manuscript submissions: 20 July 2025 | Viewed by 3576

Special Issue Editors


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Guest Editor
Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA
Interests: environmental geochemistry; green technology development; environmental quality; environmental remediation; risk assessment
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Guest Editor
Department of Biological Sciences, Michigan Technological University, Houghton, MI 49931, USA
Interests: plant biochemistry; molecular biology; microbiology; plant genetics; plant detoxification; environmental remediation; plant–microbe interactions
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Guest Editor
Department of Environmental Science and Technology, Central University of Punjab, Bathinda 151401, Punjab, India
Interests: biochar preparation method and application in soil/water resource management; regional-scale geochemical mapping; fate and mobility of potentially toxic elements in soil-rhizosphere-plant system; metal contamination of food crops; hydrogeochemistry; groundwater contamination and health risk assessment; geochemistry of acid mine drainage; environmental remediation; paleo weathering and paleoclimate reconstruction using lake sediment geochemical proxies
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Guest Editor
Department of Civil and Environmental Engineering, Rowan University, Glassboro, NJ 08028, USA
Interests: environmental science and engineering; contaminant fate and transport; soil remediation; water and wastewater treatment; environmental biotechnology; recovery of metal(loid)s
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Biochar is a promising source of carbon-rich material produced from organic feedstock/waste materials through the pyrolysis process. Because of its large surface area, high carbon content, and abundance of functional groups, this material has gained significant attention recently as a potential contributor to the UN Sustainable Development Goals in a variety of environmental remediation applications. These include the removal of heavy metals and metalloids such as Zn, Pb, Se, Cu, Cd, Cr, U, etc., microplastics, and organic contaminants, such as PFAS from water/wastewater and soils, carbon sequestration, electrode materials, catalyst, etc. In addition, biochar soil amendment has also been proven to be effective in improving soil water retention, microbial activity, crop biomass and alleviating phytotoxicity in contaminated soils, besides their many other environmental benefits.

This Special Issue will focus on high-quality scientific research, case studies, meta-data analysis, and review works in the aforementioned topic to explore the multifaceted role of biochar in environmental remediation. Areas of interest for this Special Issue include, but are not limited to the following:

  • Innovative techniques for biochar production, modification, optimization and its characterization.
  • Application of biochar/modified biochar in remediation of heavy metals/organic pollutants from contaminated water/wastewater and improvement of water quality.
  • Biochar application for remediation of organic/inorganic pollutants in contaminated soils.
  • Biochar application in managing soil salinity and soil health, and sustainable agriculture practices.
  • Biochar as a soil amendment in reducing phytotoxicity in crops
  • Innovative application of biochar in constructed wetlands or biofiltration systems.
  • Biochar and plant–microbe interactions in environmental remediation.
  • Co-application of biochar with bioremediation techniques to control soil pollution.
  • Current application of biochar for attaining SDG goals
  • Development of biochar-based remediation technologies for managing air quality/greenhouse gas mitigation
  • Biochar applications in microplastic and nanoplastic removal from multi-media environmental systems.
  • Biochar for environmental sustainability in the energy sector.
  • Application of biochar-based materials in electroanalytical devices for environmental monitoring and pollution control.
  • Challenges and opportunities of biochar applications in the environmental remediation field.

Prof. Dr. Dibyendu Sarkar
Prof. Dr. Rupali Datta
Dr. Prafulla Kumar Sahoo
Dr. Zhiming Zhang
Guest Editors

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Keywords

  • biochar
  • sustainable application
  • metals
  • soil remediation
  • bioremediation
  • microplastic
  • water treatment
  • phytotoxicity
  • plant–microbe interaction
  • SDG goals

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Published Papers (1 paper)

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Research

14 pages, 3160 KiB  
Article
Organic Amendments Improve the Quality of Coal Gob Spoils: A Sustainable Mining Waste Reclamation Method
by Zhiming Zhang, Anshuman Satpathy, Kirby Morris, Abhishek RoyChowdhury, Rupali Datta and Dibyendu Sarkar
Appl. Sci. 2024, 14(21), 9723; https://doi.org/10.3390/app14219723 - 24 Oct 2024
Viewed by 803
Abstract
Coal mine tailings can lead to a range of environmental problems, including toxic metal contamination, soil erosion, acid mine drainage, and increased salinity. Mine spoils from coal mining activities accumulated as gob piles are difficult to reclaim due to constraints such as a [...] Read more.
Coal mine tailings can lead to a range of environmental problems, including toxic metal contamination, soil erosion, acid mine drainage, and increased salinity. Mine spoils from coal mining activities accumulated as gob piles are difficult to reclaim due to constraints such as a steep slope, unsuitable pH, insufficient nutrient supply, metal toxicity, low water-holding capacity, and poor soil structure. We investigated the efficiency of low-cost amendments on coal gob spoils from Carthage Coal Field (CCF) in New Mexico in improving the quality of coal gob spoils. Gob spoil was incubated for 90 days with various rates of organic amendments such as biochar, compost, and a biochar–compost mix. Gob spoil quality parameters such as the pH, water-holding capacity, and total and plant-available nitrogen and phosphorus content of the gob spoil were measured over a period of 90 days. Both biochar and compost amendment led to a significant increase (40–60% for biochar and 70% for compost, p < 0.05) in water-holding capacity of the coal gob spoil. Plant-available nitrogen content increased from <200 mg N/kg to between 400 and 800 mg N/kg in the amended gob spoil. The period of incubation was a significant factor in the improvement of plant-available nitrogen content. Plant-available phosphorus content also increased; compost amendment was more effective than biochar in increasing plant-available P. This study provides crucial information about the optimum organic amendments that would help in optimizing a sustainable reclamation method for CCF. Full article
(This article belongs to the Special Issue Biochar Application in Environmental Remediation)
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