Comparative study for microcystin-LR sorption onto biochars produced from various plant- and animal-wastes at different pyrolysis temperatures: Influencing mechanisms of biochar properties

Li, Jieming; Cao, Lirong; Yuan, Yue; Wang, Ruiping; Wen, Yunze; Man, J. Umid

doi:10.1016/j.biortech.2017.09.120

Cited by 69 publications

(31 citation statements)

References 43 publications

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“…The specific surface area of biochar is generally within the range of 1.5-500 m 2 g −1 (Suliman et al 2016;Li et al 2018), and increases as pyrolysis temperature increases within a certain range (Al-Wabel et al 2013). At relatively low temperatures volatiles, tars, and other products, from the thermal decomposition of biomass, fill the internal pore structure of biochar, and, therefore, reduce the specific surface area.…”

Section: Specific Surface Areamentioning

confidence: 99%

Past, present, and future of biochar

Chen

Meng

Han

et al. 2019

Biochar

306

125

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After entering the twenty-first century, biochar has become a focal point of multidisciplinary research because of its special characteristics, broad application, and promising development prospects. Basic and applied research on the application of biochar in the areas of agriculture, environment, and energy have increased dramatically in the face of food security, environmental pollution, and energy shortage. Although there are some disputes about biochar research, many studies have demonstrated the importance of biochar research from the perspective of scientific advancement and practical application. This paper briefly recalls the history of biochar application; introduces research progress on the basic characteristics of biochar and its associated production technologies; summarizes the research status and existing problems of biochar application in the areas of agriculture, environment, and energy; and analyzes the potential problems and development trends of biochar research in the future.

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Section: Specific Surface Areamentioning

confidence: 99%

Past, present, and future of biochar

Chen

Meng

Han

et al. 2019

Biochar

306

125

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“…Biochar has been shown to have sorption affinity for pollutants at low pH (pH <7) (Oh & Seo, 2016;Shan et al, 2016;Tong, Li, Yuan, & Xu, 2011). Li et al (2018) revealed that biochar pyrolyzed at high temperature (!500 C) exhibited higher sorption capacity (41.2-42.4 mg g À1 ) for the toxin microcystin-LR. This is greater than, or at least comparable to, the results from commercially available adsorbents such as carbon nanotubes (5.9 mg g À1 ), mesoporous silica (5.99 mg g À1 ) and activated charcoal (16.1-83.3 mg g À1 ).…”

Section: Removal Of Pollutants and Toxins In Animalsmentioning

confidence: 99%

Use of biochar as feed supplements for animal farming

Man

Chow

Man

et al. 2020

Critical Reviews in Environmental Science and Technology

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The production and application of biochar has become increasingly popular in the past 10 years. Biochar has similar characteristics to charcoal and activated charcoal: they are all pyrogenic carbonaceous matter derived from organic carbon-rich materials and produced by pyrolysis. Studies related to the incorporation of biochar in animal feed are limited. This review summarizes major studies related to the use of biochar as a feed additive for ruminants (cattle and goats), pigs, poultry (chickens and ducks) and fish. Documented positive responses to biochar supplementation include improved growth performance, blood profiles, egg yield, ability to resist pathogens including gut pathogenic bacteria and a reduction of methane production by ruminant animals. In addition, the high sorption capacity of biochar efficiently aids the removal of pollutants and toxins from animals' bodies as well as from farm environments. It is expected that there will be increasing use of biochar in animal farming. The potential use of biochar in the medical and human health sectors should also be explored.

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“…The biochar boom in environmental technologies and agronomy raised the question of potential risk evaluation for MCs interaction with this pyrogenic carbonaceous material present in sediment/water environments [74]. While at the same time, Zhang et al [29], Li et al [27], and Liu et al [28] revealed the efficiency of modified charcoal and biochar utilization as potential sorbents of MC-LR from aqueous solutions. In each case, existing knowledge gaps on sorption behaviour of cyanotoxins in contact with biochar limit widespread usage of this engineered waste-derived sorbent in water purification processes.…”

Section: Biochar For Microcystin Sorption Separationmentioning

confidence: 99%

“…Incomplete carbonization at low temperatures in the range of 300-700 • C and the absence of activation processes can bring new challenges in the characterization and subsequent application of biochar sorbents. The effect of feedstock and mineral composition can be crucial for sorption properties of pyrogenic carbonaceous material [27].…”

Section: Biochar For Microcystin Sorption Separationmentioning

confidence: 99%

“…The high porosity, chemical stability, and significant sorption efficiency for removing cyanotoxins are among the central advantages of biochar [25]. In aqueous solutions, biochar and modified charcoal have provided promising results as sorbents [27][28][29], however, existing knowledge gaps have hindered widespread application in water treatment processes.…”

Section: Introductionmentioning

confidence: 99%

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The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

Frišták

Laughinghouse

Bell

2020

Water

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Harmful algal blooms have increased globally with warming of aquatic environments and increased eutrophication. Proliferation of cyanobacteria (blue-green algae) and the subsequent flux of toxic extracellular microcystins present threats to public and ecosystem health and challenges for remediation and management. Although methods exist, there is currently a need for more environmentally friendly and economically and technologically feasible sorbents. Biochar has been proposed in this regard because of its high porosity, chemical stability, and notable sorption efficiency for removing of cyanotoxins. In light of worsening cyanobacterial blooms and recent research advances, this review provides a timely assessment of microcystin removal strategies focusing on the most pertinent chemical and physical sorbent properties responsible for effective removal of various pollutants from wastewater, liquid wastes, and aqueous solutions. The pyrolysis process is then evaluated for the first time as a method for sorbent production for microcystin removal, considering the suitability and sorption efficiencies of pyrolysed materials and biochar. Inefficiencies and high costs of conventional methods can be avoided through the use of pyrolysis. The significant potential of biochar for microcystin removal is determined by feedstock type, pyrolysis conditions, and the physiochemical properties produced. This review informs future research and development of pyrolysed materials for the treatment of microcystin contaminated aquatic environments.

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Comparative study for microcystin-LR sorption onto biochars produced from various plant- and animal-wastes at different pyrolysis temperatures: Influencing mechanisms of biochar properties

Cited by 69 publications

References 43 publications

Past, present, and future of biochar

Past, present, and future of biochar

Use of biochar as feed supplements for animal farming

The Use of Biochar and Pyrolysed Materials to Improve Water Quality through Microcystin Sorption Separation

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