Removals of ammoniacal nitrogen, orthophosphate, biochemical oxygen demand, chemical oxygen demand and total suspended solids in subsurface flow constructed wetland: A short review

Chong, Harry Lye Hin and Lim, Jian Min and Rubia Idris and Thau, Wilson Lym Yong (2024) Removals of ammoniacal nitrogen, orthophosphate, biochemical oxygen demand, chemical oxygen demand and total suspended solids in subsurface flow constructed wetland: A short review. Transactions on Science and Technology, 11 (3). pp. 187-198. ISSN 2259-8786

	Text ABSTRACT.pdf Download (38kB)
	Text FULL TEXT.pdf Restricted to Registered users only Download (575kB) | Request a copy

Abstract

Subsurface flow constructed wetland has been known for its capability to treat wastewater. This work reviewed the removals of ammoniacal nitrogen, orthophosphate, biochemical oxygen demand, chemical oxygen demand and total suspended solids recently published in Scopus indexed journals. Ammoniacal nitrogen in subsurface flow constructed wetland was removed via six interconnected mechanisms, namely, nitrification-denitrification, partial nitrification denitrification, anaerobic ammonium oxidation, plant uptake, volatilisation and adsorption. The orthophosphate was removed via chemical and biological mechanisms such as adsorption, ligand exchange, precipitation, plant uptake and biological storage in microorganisms. Organic matter in the constructed wetland basin was treated via aerobic and anaerobic degradations to reduce the biochemical oxygen demand and chemical oxygen demand, respectively. Physical mechanisms such as filtration, adsorption and gravitational settling were responsible for the removal of total suspended solids. There exist data gaps which were the application of emergent non-aquatic angiosperms as constructed wetland plants and the simultaneous treatment of ammoniacal nitrogen, orthophosphate, biochemical oxygen demand, chemical oxygen demand and total suspended solids in a single integrated experiment has not been experimented. Future subsurface flow constructed wetland research can address these data gaps.

Item Type:	Article
Keyword:	Ammoniacal nitrogen, Orthophosphate, Biochemical oxygen demand, Chemical oxygen demand, Total suspended solids, Constructed wetland
Subjects:	Q Science > QE Geology > QE1-996.5 Geology > QE1-350.62 General Including geographical divisions T Technology > TD Environmental technology. Sanitary engineering > TD1-1066 Environmental technology. Sanitary engineering
Department:	FACULTY > Faculty of Science and Natural Resources
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	16 Dec 2024 11:20
Last Modified:	16 Dec 2024 11:20
URI:	https://eprints.ums.edu.my/id/eprint/42175

Actions (login required)

View Item