Enhanced arsenic removals through plant interactions in subsurface-flow constructed wetlands

Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
C SinghakantJ Satayavivad

Abstract

Arsenic (As) removal in pilot-scale subsurface-flow constructed wetlands (CWs) was investigated by comparing between CW units with vetiver grasses (CWplanted) and CW units without vetiver grasses (CWunplanted) in order to determine the roles of vetiver grasses affecting As removal. Based on the data obtained from 147 days of experiment, it is apparent that CWplanted units could remove As significantly higher than those of CWunplanted units with approximately 7-14%. Although analysis of As mass balance in CW units revealed that only 0.5-1.0% of total As was found in vetiver grasses, the As retained within bed of the CWplanted units (23.6-29.7 g) was higher than those in the CWunplanted units (21.3-26.8 g) at the end of the experiment, illustrating the effect of vetiver grasses on As accumulation in the CW units. Determination of As in different fractions in the CW bed suggested that the main mechanism of As retention was due mainly to As entrapment into the porous of bed materials (50-57% of total fraction), this mechanism is likely not affected by the presence of vetiver grasses. However, fraction of As-bound in organic matters that could be released from plant roots decomposition indicated the increase adsorption capacity of C...Continue Reading

References

Mar 15, 2003·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Roshan R ShresthaKabita Shrestha
Jun 1, 2005·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Jan Vymazal
Apr 12, 2006·Environmental Geochemistry and Health·Suiling Wang, Catherine N Mulligan
Oct 24, 2007·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Shoko OshikawaDipankar Chakraborti
Apr 30, 2008·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Varangkana VisesmaneePreeda Parkpian

❮ Previous
Next ❯

Citations

Apr 29, 2014·International Journal of Environmental Analytical Chemistry·Min WuMiklas Scholz
Feb 13, 2017·Environmental Science and Pollution Research International·Derek HigginsRonan Courtney
Sep 22, 2011·Environmental Science and Pollution Research International·Mario Alberto Olmos-MárquezIgnacio Ramiro Martín-Domínguez
Jul 21, 2016·Environmental Science and Pollution Research International·Theerawut PhusantisampanRattanawat Chaiyarat
Apr 15, 2021·Environmental Science and Pollution Research International·Lokendra Singh ThakurPrasenjit Mondal
Aug 31, 2019·The Science of the Total Environment·C CorrotoA L Pérez Carrera

❮ 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.