Type

Journal Article

Authors

J.P. Hanrahan
M.A. Morris
A.M. Burke
Y.Q. Zhao
A.O. Babatunde

Subjects

Engineering

Topics
wastewater treatment adsorption capacity phosphorus removal aluminum instrumentation constructed wetlands water pollutants chemical water treatment residual phosphorus absorption and adsorption water supply wetlands water purification water treatment plant residuals phosphorus chemistry engineered wetlands adsorption

Characterization of aluminium-based water treatment residual for potential phosphorus removal in engineered wetlands (2009)

Abstract Aluminium-based water treatment residual (Al-WTR) is the most widely generated residual from water treatment facilities worldwide. It is regarded as a by-product of no reuse potential and landfilled. This study assessed Al-WTR as a potential phosphate-removing substrate in engineered wetlands for wastewater treatment. Results indicate the specific surface area ranged from 28.0 m2 g-1 to 41.4 m2 g-1 and this increased with increasing particle size. X-ray Diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and energy-dispersive X-ray spectroscopy all indicate that the Al-WTR is mainly composed of amorphous aluminium which influences its phosphorus (P) adsorption capacity. The pH and electrical conductivity ranged from 5.9 - 6.0 and 0.104 dS m-1 - 0.140 dS m-1 respectively, and both showed that it should suitably support plant growth. Batch tests showed a maximum P adsorption capacity of 31.9 mg-P g-1 and significant P removal was achieved in column tests. Overall, results showed that Al-WTR can be a low-cost, easily and locally available substrate for enhanced P removal in engineered wetlands and it carries the benefits of reuse of a by-product that promotes sustainability.
Collections Ireland -> University College Dublin -> Institutes and Centres
Ireland -> University College Dublin -> Centre for Water Resources Research
Ireland -> University College Dublin -> Urban Institute Ireland
Ireland -> University College Dublin -> Urban Institute Ireland Research Collection
Ireland -> University College Dublin -> Critical Infrastructure Group Research Collection
Ireland -> University College Dublin -> Interdisciplinary Centres & Research Groups
Ireland -> University College Dublin -> Centre for Water Resources Research Collection
Ireland -> University College Dublin -> Civil Engineering Research Collection
Ireland -> University College Dublin -> College of Engineering & Architecture
Ireland -> University College Dublin -> Critical Infrastructure Group
Ireland -> University College Dublin -> School of Civil Engineering

Full list of authors on original publication

J.P. Hanrahan, M.A. Morris, A.M. Burke, Y.Q. Zhao, A.O. Babatunde

Experts in our system

1
Michael A. Morris
University College Cork
Total Publications: 164
 
2
Y.Q. Zhao
University College Dublin
Total Publications: 112