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Full-Text Articles in Engineering
Koh-Based Modified Solvay Process: Optimization And Kinetics Studies, Aya Abdel-Hamid Mourad
Koh-Based Modified Solvay Process: Optimization And Kinetics Studies, Aya Abdel-Hamid Mourad
Dissertations
While desalination of seawater is important for meeting the water demand, the technology produces large volumes of reject brine and CO2, causing environmental pollution. Solvay process (based on ammonia, NH3) and modified Solvay process (based on calcium oxide, CaO) try to manage these wastes. However, more attention is needed to overcome different limitations of these processes such as, alkaline solubility, operating temperature, maintaining high pH value, and low sodium (Na+) removal efficiency, which does not exceed 35%. The aim of this work is to introduce an alternative alkaline, namely potassium hydroxide (KOH) and investigate …
Multi Stage Modified Solvay Process For Co2 Capture And Reject Brine Desalination, Ameera Fares Mohammad
Multi Stage Modified Solvay Process For Co2 Capture And Reject Brine Desalination, Ameera Fares Mohammad
Dissertations
Brine management is an environmental concern, as many desalination plants need to find suitable approaches for the treatment or disposal of the large amounts of concentrated brine that are produced. Many conventional methods are used such as disposal through deep well injection, but these methods still suffer from many drawbacks. An alternative approach is to further process the brine by extracting the salts through reactions with carbon dioxide. The chemical reactions of reject brine with high alkalinity products and carbon dioxide are postulated to constitute a new, effective, economic and environmentally friendly approach. On the other hand, a major challenge …