PMID: 18200880Jan 19, 2008Paper

Electrochemical acceleration of chemical weathering as an energetically feasible approach to mitigating anthropogenic climate change

Environmental Science & Technology
Kurt Zenz HouseMichael J Aziz

Abstract

We describe an approach to CO2 capture and storage from the atmosphere that involves enhancing the solubility of CO2 in the ocean by a process equivalent to the natural silicate weathering reaction. HCl is electrochemically removed from the ocean and neutralized through reaction with silicate rocks. The increase in ocean alkalinity resulting from the removal of HCI causes atmospheric CO2 to dissolve into the ocean where it will be stored primarily as HCO3- without further acidifying the ocean. On timescales of hundreds of years or longer, some of the additional alkalinity will likely lead to precipitation or enhanced preservation of CaCO3, resulting in the permanent storage of the associated carbon, and the return of an equal amount of carbon to the atmosphere. Whereas the natural silicate weathering process is effected primarily by carbonic acid, the engineered process accelerates the weathering kinetics to industrial rates by replacing this weak acid with HCI. In the thermodynamic limit--and with the appropriate silicate rocks--the overall reaction is spontaneous. A range of efficiency scenarios indicates that the process should require 100-400 kJ of work per mol of CO2 captured and stored for relevant timescales. The process...Continue Reading

References

Apr 1, 1997·Archives of Environmental Contamination and Toxicology·U JärnbergE Jakobsson
May 12, 2001·Environmental Science & Technology·H J Herzog
Jul 17, 2004·Science·Richard A FeelyFrank J Millero
Aug 9, 2006·Proceedings of the National Academy of Sciences of the United States of America·Kurt Zenz HouseKlaus S Lackner
Dec 15, 2000·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·L CarretteU Stimming

❮ Previous
Next ❯

Citations

Aug 30, 2008·Die Naturwissenschaften·Jens Hartmann, Stephan Kempe
Jun 5, 2013·Proceedings of the National Academy of Sciences of the United States of America·Greg H RauRoger D Aines
Mar 5, 2013·Annual Review of Chemical and Biomolecular Engineering·Hans Geerlings, Ron Zevenhoven
Aug 26, 2016·Chemical Reviews·Eloy S Sanz-PérezChristopher W Jones
Sep 26, 2009·Science·David W Keith
Dec 11, 2013·Scientific Reports·Elena AgliariGuido Uguzzoni
Aug 15, 2008·ChemSusChem·Fritz Scholz, Ulrich Hasse
Sep 14, 2010·Wiley Interdisciplinary Reviews. Systems Biology and Medicine·Mukhtar Ullah, Olaf Wolkenhauer
May 24, 2015·Environmental Science and Pollution Research International·Sajjad HussainArtur J Motheo
Aug 24, 2012·Origins of Life and Evolution of the Biosphere : the Journal of the International Society for the Study of the Origin of Life·Yoshihiro FurukawaTakeshi Kakegawa
Feb 1, 2013·Energy & Environmental Science·Roberto BarberoAngela Belcher
Sep 15, 2018·Nature Communications·Mark G LawrenceJürgen Scheffran
Jun 16, 2015·Environmental Science & Technology·Lu LuZhiyong Jason Ren
Jul 22, 2021·ChemSusChem·Anatoly RinbergMichael J Aziz

❮ 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.

Related Papers

Environmental Science & Technology
Stephen J GerdemannHank Rush
Proceedings of the National Academy of Sciences of the United States of America
Kurt Zenz HouseHoward J Herzog
© 2021 Meta ULC. All rights reserved