Journal ArticleDOI
Production, characterization, activation and environmental applications of engineered biochar: a review
Dilipkumar Akhil,Divya Lakshmi,Ashokkumar Kartik,Dai-Viet N. Vo,Jayaseelan Arun,Kannappan Panachamoorthy Gopinath +5 more
Reads0
Chats0
TLDR
In this paper, a modified cornstalk biochar displays mercury adsorption capacity of 269.4 µm/g and β-estradiol adsorization capacity of 98.8 µm /g.Abstract:
Increased industrial and domestic activities have induced pollution, global warming and resources depletion, calling for advanced remediation techniques. For instance, biochar synthesized from waste materials is an ecofriendly and low-cost material for the remediation of contaminants, yet raw biochar is poorly efficient. Therefore, biochar properties can be improved by ultrasonication, metal impregnation, surfactant modification, microwave, electrochemical and plasma treatment techniques. Biochar properties include adsorption capacity, active surface area, uniform distribution of pores, chemical attributes and mechanical stability. Engineered biochar thus exhibits high contaminant removal efficiency of 90–99%, tolerance to wide range of pH of 3–9 and high specific surface area of more than 400 cm3/g. For example, modified cornstalk biochar displays mercury adsorption capacity of 269.4 mg/g. The usage of magnetic biochar allows a β-estradiol adsorption capacity of 98.8 mg/g. Engineered biochar can act as an ecofriendly soil amendment and a highly efficient tool to recover contaminants from water systems.read more
Citations
More filters
Journal ArticleDOI
Protocols for synthesis of nanomaterials, polymers, and green materials as adsorbents for water treatment technologies
TL;DR: In this article, a review of protocols and procedures for the synthesis of nanomaterials, polymers, and green materials as adsorbents used for water purification is presented.
Journal ArticleDOI
Biochar for agronomy, animal farming, anaerobic digestion, composting, water treatment, soil remediation, construction, energy storage, and carbon sequestration: a review
Ahmed I. Osman,Samer Fawzy,Mohamed Farghali,Marwa El-Azazy,Ahmed M. Elgarahy,Ramy Amer Fahim,M. I. A. Abdel Maksoud,Abbas Abdullah Ajlan,M. Issa Yousry,Yasmeen Saleem,David Rooney +10 more
TL;DR: In this article , the authors review application of biochar-based for carbon sink, covering agronomy, animal farming, anaerobic digestion, composting, environmental remediation, construction, and energy storage.
Journal ArticleDOI
Techno-economic analysis reveals the untapped potential of wood biochar
TL;DR: In this article, the United Nations estimates the rate of deforestation over 10 million hectares per year, with additional infested wood available due to drought, bark beetle calamity and other damage vectors.
Journal ArticleDOI
Industrial biochar systems for atmospheric carbon removal: a review
TL;DR: The major commercialized technologies for offering atmospheric carbon removal are forestation, direct air carbon capture utilization and storage, soil carbon sequestration, wooden building elements and biochar, with corresponding fees ranging from 10 to 895 GBP (British pounds) per ton CO2.
Journal ArticleDOI
Mechanism and kinetics of adsorption and removal of heavy metals from wastewater using nanomaterials
TL;DR: In this article, a review of recently developed nanomaterials used to remove heavy metals in wastewater, with focus on synthesis, removal mechanisms and kinetics is presented, including zero-valent, carbon-based and nanocomposites.
References
More filters
Journal ArticleDOI
Mechanisms of metal sorption by biochars: Biochar characteristics and modifications
Hong-Bo Li,Xiaoling Dong,Evandro B. da Silva,Letuzia M. de Oliveira,Yanshan Chen,Lena Q. Ma,Lena Q. Ma +6 more
TL;DR: This review summarizes the characteristics of biochar (e.g., surface area, porosity, pH, surface charge, functional groups, and mineral components) and main mechanisms governing sorption of As, Cr, Cd, Pb, and Hg by biochar and includes competitive sorption mechanisms of co-existing metals.
Journal ArticleDOI
Engineered/designer biochar for contaminant removal/immobilization from soil and water: Potential and implication of biochar modification
Anushka Upamali Rajapaksha,Season S. Chen,Daniel C.W. Tsang,Ming Zhang,Meththika Vithanage,Sanchita Mandal,Bin Gao,Nanthi Bolan,Yong Sik Ok +8 more
TL;DR: Modification to produce engineered/designer biochar is likely to enhance the sorption capacity of biochar and its potential applications for environmental remediation.
Journal ArticleDOI
Production and utilization of biochar: A review
Jin Sun Cha,Sunghoon Park,Sang-Chul Jung,Changkook Ryu,Jong-Ki Jeon,Min Chul Shin,Young-Kwon Park +6 more
TL;DR: In this paper, researches on biochar are discussed in terms of production method and application, and different processes for biochar production, such as pyrolysis, gasification, hydrothermal carbonization, etc.
Journal ArticleDOI
Characterization of biochar from fast pyrolysis and gasification systems
TL;DR: In this paper, the authors compared fast and slow pyrolysis and gasification of switchgrass and corn stover with a commercial hardwood charcoal and found that the latter had higher ash content.
Journal ArticleDOI
Bio-oil and bio-char production from corn cobs and stover by fast pyrolysis
Charles A. Mullen,Akwasi A. Boateng,Neil M. Goldberg,Isabel M. Lima,David A. Laird,Kevin B. Hicks +5 more
TL;DR: In this paper, a pilot scale fluidized bed reactor was used to produce bio-oil and bio-char from corn cobs and corn stover (stalks, leaves and husks) by fast pyrolysis.
Related Papers (5)
Preparation, modification and environmental application of biochar: A review
Jianlong Wang,Shizong Wang +1 more