Effects of a manganese oxide-modified biochar composite on adsorption of arsenic in red soil

Journal of Environmental Management
Zhihong YuWeiwen Qiu

Abstract

The arsenic adsorption capacity of a manganese oxide-modified biochar composite (MBC), prepared by pyrolysis of a mixture of potassium permanganate and biochar, was investigated in red soil. Adsorption experiments using batch procedures were used to estimate the arsenic adsorption capacities of the absorbent materials. Adsorption and desorption isotherms, Fourier-transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) were used to characterise the prepared adsorbent materials, and a plausible mechanism for arsenic removal by MBC was proposed. Arsenic in red soil-MBC mixtures exhibited lower mobility than that in soils amended with pristine biochar. The improved removal performance of soil-MBC mixtures was attributed to a lower H/C ratio, higher O/C ratio, higher surface hydrophilicity, and higher surface sorption capacity, even though the impregnation of manganese oxide decreased the specific surface area of the biochar. Arsenic retention increased as the biochar content increased, mainly owing to an increase in soil pH. Several oxygenated functional groups, especially O-H, CO, Mn-O, and Si-O, participated in the adsorption process, and manganese oxides played a significant role in the oxidation of ar...Continue Reading

References

Mar 10, 2001·Journal of Colloid and Interface Science·Yuji AraiDonald L. Sparks
Apr 15, 2004·Chemosphere·P Ratna KumarS P Mahajan
May 15, 2004·The Science of the Total Environment·Véronique LenobleJean-Claude Bollinger
Oct 6, 2004·Environmental Science & Technology·Yuan ChunBaoshan Xing
Feb 28, 2007·Journal of Hazardous Materials·Dinesh Mohan, Charles U Pittman
Oct 31, 2008·Talanta·Badal Kumar Mandal, Kazuo T Suzuki
Feb 24, 2009·Journal of Hazardous Materials·N BalasubramanianC Srinivasakannan
Feb 16, 2010·The Science of the Total Environment·Colin SullivanNigel J D Graham
Oct 28, 2010·Environmental Science & Technology·Brandon J LaffertyDonald L Sparks
Feb 26, 2011·Journal of Agricultural and Food Chemistry·Minori UchimiyaIsabel M Lima
May 27, 2014·Ecotoxicology and Environmental Safety·Jingkuan SunZhengguo Song

❮ Previous
Next ❯

Citations

Nov 5, 2015·Environmental Science and Pollution Research International·Muhammad RizwanYong Sik Ok
Jan 1, 2018·Environmental Science and Pollution Research International·Minling GaoZeyang Guo
Nov 15, 2016·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Xiaochen LiJie Li
Apr 25, 2019·Environmental Science and Pollution Research International·Xuewei LiuZhengguo Song
May 12, 2018·Environmental Science and Pollution Research International·Lina LinZhengguo Song
Oct 3, 2018·Environmental Science and Pollution Research International·Manhattan LebrunSylvain Bourgerie
Jan 5, 2019·Environmental Science and Pollution Research International·Qiwen ZhouMing Lei
Feb 28, 2021·The Science of the Total Environment·Chenxi ZhaoXueyang Zhang
Apr 17, 2021·Environmental Science and Pollution Research International·Zhiqiang XuJiaxin Duan
Oct 15, 2019·Journal of Hazardous Materials·Na LiuQiaoying Wang
May 6, 2021·Environmental Science and Pollution Research International·Lina LinZhengguo Song
Jun 13, 2021·Journal of Environmental Management·Marco Mng'ong'oThomas H Hutchinson

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.