Nitrate and ammonium ions removal from groundwater by a hybrid system of zero-valent iron combined with adsorbents

Journal of Environmental Monitoring : JEM
Min-Kyu JiByong-Hun Jeon

Abstract

Nitrate (NO(3)(-)) is a commonly found contaminant in groundwater and surface water. It has created a major water quality problem worldwide. The laboratory batch experiments were conducted to investigate the feasibility of HCl-treated zero-valent iron (Fe(0)) combined with different adsorbents as hybrid systems for simultaneous removal of nitrate (NO(3)(-)) and ammonium (NH(4)(+)) ions from aqueous solution. The maximum NO(3)(-) removal in combined Fe(0)-granular activated carbon (GAC), Fe(0)-filtralite and Fe(0)-sepiolite systems was 86, 96 and 99%, respectively, at 45 °C for 24 h reaction time. The NO(3)(-) removal rate increased with the increase in initial NO(3)(-) concentration. The NO(3)(-) removal efficiency by hybrid systems was in the order of sepiolite > filtralite > GAC. The NH(4)(+) produced during the denitrification process by Fe(0) was successfully removed by the adsorbents, with the removal efficiency in the order of GAC > sepiolite > filtralite. Results of the present study suggest that the use of a hybrid system could be a promising technology for achieving simultaneous removal of NO(3)(-) and NH(4)(+) ions from aqueous solution.

References

Mar 12, 2003·Journal of Hazardous Materials·Mahmut Ozacar, I Ayhan Sengil
Apr 17, 2003·Water Research·Paul Westerhoff, Jennifer James
Aug 23, 2003·Journal of Environmental Quality·Yong H HuangSteve D Comfort
Feb 7, 2004·European Journal of Clinical Investigation·C-Y ChanS-D Lee
Jun 29, 2004·Journal of Colloid and Interface Science·A Safa Ozcan, Adnan Ozcan
Jul 1, 2004·Journal of Hazardous Materials·Neşe Oztürk, T Ennil Bektaş
Feb 1, 2005·Journal of Zhejiang University. Science. B·Zhi-Wei HaoDa-Hui Wang
Mar 4, 2005·Water Research·Sunbaek BangXiaoguang Meng
Apr 7, 2005·Chemosphere·Yi-Ming ChenShiao-Shing Chen
Aug 13, 2005·Journal of Hazardous Materials·Ya Hsuan LiouShih Chi Weng
Feb 10, 2006·Journal of Colloid and Interface Science·Marek Kosmulski
Jan 9, 2008·Journal of Hazardous Materials·Se Chang AhnDaniel K Cha
Mar 12, 2008·Chemosphere·Kyung-Hee Shin, Daniel K Cha
Dec 19, 2008·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Sita KrajangpanEakalak Khan
Oct 30, 2009·Journal of Environmental Sciences (China)·Xiaomeng FanHengyu Ai

❮ Previous
Next ❯

Citations


❮ 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.