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Study on Factor Involved in Multi-step Two Phase CO2 Sequestration Process
, Ph.D. Dissertation Sharif University of Technology ; Shaygan Salek, Jalaloddin (Supervisor) ; Kariminia, Hamid Reza (Supervisor)
Abstract
The increase in CO2 concentration and its effect on ecosystem and global warming make carbon sequestration inevitable for now and future. Ex-situ carbonation of mineral ores is one of the studied sequestration methods. This method is permanent and safe in comparison with others. This process is carried out in four steps and two phases in this dissertation. At the first stage magnesium was extracted from its mineral silicate ore (Mixture of serpentine and olivine) by hydrochloric acid (HCl) and was dissolved in liquid phase as ion. After that the resultant leachate of extraction step was purified from unwanted ions extracted from minerals in two steps by precipitation formed by increasing pH....
Studying Immobilization of Laccase by Entrapment and Its Applications in Micropollutants Removal from Aqueous Wastewater
, M.Sc. Thesis Sharif University of Technology ; Yaghmaei, Soheila (Supervisor) ; Ghabodinejad, Zahra (Co-Supervisor)
Abstract
One of the major environmental problems in recent years is the presence of micropollutants that cause many problems for the environment and living organisms. The micropollutant bisphenol A and the drug diclofenac are one of the pollutants and endocrine disruptors. Usually, conventional biological and physico-chemical methods do not have a high ability to remove such pollutants. Also, advanced oxidation methods usually lead to the production of highly toxic products. Using enzymes is an attractive method to remove these micropollutants. Laccase enzyme is one of the most famous enzymes in the field of biotherapy because it can remove a wider range of pollutants and it is one of the...