Batch and Continuous Fixed-Bed Lead Removal Using Himalayan Pine Needle Biochar: Isotherm and Kinetic Studies

ACS Omega
Vaishali ChoudharyDinesh Mohan

Abstract

Pine needle litter in Himalayan forests leads to forest fires, ground water recharge inhibition, soil acidification and contamination, and stops the growth of grass and plants. This study provides a possible solution for pine needle litter problem by converting it to biochar. Pine needle litter lying on the ground for approximately a month was collected from the Himalayan region. The pine needle litter biochars were generated using slow pyrolysis (residence time, 30 min; heating rate, 10 °C/min) at 350, 450, 550, 650, and 750 °C. Finally, pine needle litter biochar prepared at 550 °C (PNBC550) was selected for sorptive removal of aqueous lead both in batch and column studies. The PNBC550 was characterized for proximate and elemental compositions, crystallinity, surface area, morphology, and functional groups. A BET surface area of 230.9 m2/g was obtained for PNBC550. Batch sorption studies were carried out to study (1) the adsorption versus pH studies (at pH 2 to 7), (2) isotherms (at 10, 25, and 35 °C) to evaluate the temperature effect on the sorption efficiency, and (3) kinetics to reveal the effect of time, adsorbent dose, and initial concentration on the reaction rate. Increasing pyrolysis temperature raised lead sorption ...Continue Reading

References

Aug 1, 1984·American Industrial Hygiene Association Journal·Y H Yoon, J H Nelson
Apr 17, 2003·Chemosphere·Chulsung KimSay Kee Ong
Mar 6, 2009·Journal of Hazardous Materials·Zhengang Liu, Fu-Shen Zhang
Jun 1, 1987·Environmental Science & Technology·R M Clark
Jan 27, 2010·Environmental Science & Technology·Marco KeiluweitMarkus Kleber
Mar 9, 2010·Bioresource Technology·Xinde Cao, Willie Harris
Dec 9, 2010·Journal of Environmental Management·Fenglian Fu, Qi Wang
Mar 1, 2011·Journal of Hazardous Materials·Dinesh MohanCharles U Pittman
Sep 13, 2014·Environmental Science and Pollution Research International·Mandu InyangXinde Cao
Jan 28, 2015·Bioresource Technology·Shengsen WangKati W Migliaccio
Mar 7, 2015·Journal of Colloid and Interface Science·Dinesh MohanCharles U Pittman
Jun 10, 2015·Environmental Pollution·Fei LianBaoshan Xing
Jul 5, 2015·Bioresource Technology·Zhengtao ShenAbir Al-Tabbaa
Jan 10, 2016·Bioresource Technology·Lukáš TrakalMichael Komárek
Feb 10, 2016·Journal of Colloid and Interface Science·Shalini RajputDinesh Mohan
Aug 31, 2016·Environmental Science and Pollution Research International·Weidong WuHailong Wang
Oct 16, 2016·Chemosphere·Rivka B FidelMichael Lawrinenko
Apr 9, 2018·The Science of the Total Environment·Qian WangBin Gao
May 12, 2018·Journal of Environmental Management·Suchanya WongrodEric D van Hullebusch

❮ Previous
Next ❯

Citations

Aug 28, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Michele CastiglioniMaria Concetta Bruzzoniti

❮ Previous
Next ❯

Methods Mentioned

BETA
equilibrium sorption studies
scanning electron microscopy
X-ray

Software Mentioned

OriginPro

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.