The eAND process: enabling simultaneous nitrogen-removal and disinfection for WWTP effluent

Water Research
Jing DingKun Wang

Abstract

To mitigate potential eutrophication risk caused by nitrogen species in the effluent of wastewater treatment plant (WWTP), nitrogenous compounds failed to be removed during biological wastewater treatment should be further eliminated. In this paper, an electrochemical process for ammonia-oxidation, nitrate-reduction and disinfection (eAND process) of WWTP effluent was developed and its performance for tertiary treatment of synthetic wastewater and actual effluent was evaluated. Results indicated ammonia and nitrate removal efficiencies in actual effluent reached 96% and 36% at 1.23 Ah l(-1), while coliforms were totally inactivated at 0.072 Ah l(-1) under the optimal operation conditions. Ammonia removal due to the anodic indirect oxidation followed a pseudo first kinetic, while the modified model expressed as exponential decay fitted well to the experimental data with the presence of nitrate. The coliforms inactivation was attributed to the in situ generated active chlorine, indicating no extra addition of disinfectant. Nitrate reduction in cathodic area fitted to pseudo first order kinetic with kinetic constants of 0.13-0.54 l A(-1) h(-1). These results clearly showed the potential of this eAND process to serve as a tertiary ...Continue Reading

References

May 10, 2005·Water Research·Lidia SzpyrkowiczShanta Satyanarayan
Sep 9, 2005·Water Research·Barada Prasanna Dash, Sanjeev Chaudhari
Mar 21, 2006·Water Research·Kwang-Wook KimEil-Hee Lee
Apr 25, 2006·Waste Management·Yang Deng, James D Englehardt
Feb 22, 2007·Environmental Science & Technology·Mark G MuellnerMichael J Plewa
May 31, 2008·Journal of Hazardous Materials·Liang Li, Yan Liu
Jul 18, 2009·Journal of Hazardous Materials·Miao LiNorio Sugiura
Apr 7, 2010·Bioresource Technology·Miao LiNorio Sugiura
Jun 28, 2011·Journal of Hazardous Materials·David ReyterLionel Roué
Mar 10, 2012·Environmental Science & Technology·Benoît Pernet-CoudrierMichael Berg
Jul 28, 2012·Water Research·Halis SimsekEakalak Khan

❮ Previous
Next ❯

Citations

Apr 14, 2016·Environmental Science and Pollution Research International·Jing DingHang Yu
Apr 24, 2020·Water Environment Research : a Research Publication of the Water Environment Federation·Jing DingQingliang Zhao
May 2, 2018·Environmental Science and Pollution Research International·Jinwei DaiXinhua Zeng
Aug 25, 2019·International Journal of Environmental Research and Public Health·Jiachao YaoJun Chen

❮ 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.