Annals of Civil Engineering and Management(ACEM)

Department of Chemical Engineering, Dalhousie University, Canada

Publications

• Review Article   
  Wastewater-Derived Mineral Recovery for Carbon-Neutral Construction Materials
  Author(s): Chinenye Elizabeth Onumadu* and Adeel Patrick
  
  Cement production accounts for approximately 8% of global anthropogenic CO2 emissions, driven largely by limestone calcination and high-temperature clinker sintering. The increasing scarcity of high-quality supplementary cementitious materials (SCMs) further exacerbates the sustainability challenge facing the construction sector. Municipal and industrial wastewater streams constitute a continuously available, yet largely untapped, source of dissolved and particulate calcium (Ca), magnesium (Mg), and silicates (Si), presenting a promising circular economy pathway for simultaneous resource recovery and carbon footprint reduction in construction materials. The objective of this study was to recover a multi-mineral blend from wastewater through an integrated chemical process and to evaluate its efficacy as a sustainable cementitious additive in ordinary Portland cement (OPC) sys.. Read More»
  

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