Browsing School of Civil, Structural and Environmental Engineering by Author "Yang, Y."

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Browsing School of Civil, Structural and Environmental Engineering by Author

Browsing School of Civil, Structural and Environmental Engineering by Author "Yang, Y."

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Characteristics and mechanisms of phosphate adsorption on dewatered alum sludge

Yang, Y. ; Zhao, Y.Q. ; Babatunde, A.O. ; Wang, L. ; Ren, Y.X. ; Han, Y. (Elsevier, 2006-09)

The adsorption characteristics of phosphate adsorption on the dewatered alum sludge were identified as a function of pH and ion strengths in solution. In addition, adsorption mechanisms were investigated by conducting batch ...
Co-conditioning of the anaerobic digested sludge of a municipal wastewater treatment plant with alum sludge : benefit of phosphorus reduction in reject water

Yang, Y. ; Zhao, Y.Q. ; Babatunde, A.O. ; Kearney, P. (Water Environment Federation, 2007-12)

In this study, alum sludge was introduced into co-conditioning and dewatering with an anaerobic digested activated sludge to examine the role of the alum sludge in improving the dewaterbility of the mixed sludge and also ...
Dewatered alum sludge : a potential adsorbent for phosphorus removal

Yang, Y. ; Tomlinson, D. ; Kennedy, S. ; Zhao, Y.Q. (IWA Publishing, 2006-06)

Alum sludge refers to the by-product from the processing of drinking water in Water Treatment Works. In this study, groups of batch experiments were designed to identify the characteristics of dewatered alum sludge for ...
Extending the use of dewatered alum sludge as a P-trapping material in effluent purification : study on two separate water treatment sludges

Zhao, Y.Q. ; Yang, Y. (Taylor & Francis, 2010-07)

The generation of alum sludge from drinking water purification process remains inevitable when aluminium sulphate is used as primary coagulant for raw water coagulation. Sustainable managing such the sludge becomes an ...
From "fills" to filter : insights into the reuse of dewatered alum sludge as a filter media in a constructed wetland

Babatunde, A.O. ; Zhao, Y.Q. ; Yang, Y. ; Kearney, P. (DesTech Publications, 2007-07)

Dewatered alum sludge, a by-product of drinking water treatment plants, hitherto consigned to landfills was used to develop a novel bio-filter in form of a constructed wetland. Performance results have demonstrated the ...
Influence of ageing on the structure and phosphate adsorption capacity of dewatered alum sludge

Yang, Y. ; Zhao, Y.Q. ; Kearney, P. (Elsevier, 2008-12-15)

In line with the increasing studies on the beneficial reuse of alum sludge from a “waste” into useful raw material, this paper reports an in-depth investigation of the effects of ageing time on the structure and the phosphate ...
A promising approach of reject water treatment using a tidal flow constructed wetland system employing alum sludge as main substrate

Yang, Y. ; Zhao, Y.Q. ; Wang, S.P. ; Guo, X.C. ; Ren, Y.X. ; Wang, L. ; Wang, X.C. (IWA Publishing, 2011-06)

This study examined a novel reuse of the alum sludge, an inescapable by-product of the production of drinking water when aluminium salt is added as a coagulant, as the main medium in a laboratory-scale multi-stage constructed ...
Reuse of aluminium-based water treatment sludge to immobilize a wide range of phosphorus contamination : equilibrium study with different isotherm models

Zhao, Y.Q. ; Razali, Melanie ; Babatunde, A.O. ; Yang, Y. ; Bruen, Michael (Taylor & Francis, 2007-10)

The adsorption equilibrium of a wide range of phosphorus species by an aluminium-based water treatment sludge (Al-WTS) was examined in this study. Four kinds of adsorption-isotherm models, namely Langmuir, Freundlich, ...
Re-use of dewatered aluminium-coagulated water treatment residual to immobilize phosphorus : batch and column trials using a condensed phosphate

Babatunde, A.O. ; Zhao, Y.Q. ; Yang, Y. ; Kearney, P. (Elsevier, 2008-03-01)

The aluminium content in dewatered aluminium-coagulated water treatment residual (DAC-WTR) can lead to a high phosphorus (P) removal capacity. Therefore, DAC-WTR has been used as adsorbent/soil amendment to remove P in ...
Towards the development of a novel construction solid waste (CSW) based constructed wetland system for tertiary treatment of secondary sewage effluents

Yang, Y. ; Zhang, L. ; Zhao, Y.Q. ; Wang, S.P. ; Guo, X.C. ; Guo, Y. ; Wang, L. ; Ren, Y.X. ; Wang, X.C. (Taylor & Francis, 2011-06)

This study was conducted to examine the possibility of using construction solid waste (CSW), an inevitable by-product of the construction and demolition process, as the main substrate in a laboratory scale multi-stage ...
Two strategies for phosphorus removal from reject water of municipal wastewater treatment plant using alum sludge

Yang, Y. ; Zhao, Y.Q. ; Babatunde, A.O. ; Kearney, P. (IWA Publishing, 2009-12)

In view of the well recognized need of reject water treatment in MWWTP (municipal wastewater treatment plant), this paper outlines two strategies for P removal from reject water using alum sludge, which is produced as ...