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Modeling for Optimal Technology Selection for Spent Caustic Treatment
,
M.Sc. Thesis
Sharif University of Technology
;
Rashtchian, Davood
(Supervisor)
;
Sharifzadeh, Mahdi
(Supervisor)
Abstract
In chemical processes, caustic soda is widely used in absorption towers to remove impurities. Remaining adsorbent stream which is known as spent caustic, due to the presence of organic and inorganic loads in the spent caustic mixture, it is necessary to bring the chemical oxygen demand to acceptable environmental values. Conventional treatment of this type of effluent methods that has been investigated at this research, which are as follows: 1. incineration 2. neutralization 3. wet air oxidation; 4. catalytic wet air oxidation; 5. advanced oxidation process; 6. biological treatment 7. physical methods. In this research, the aforementioned methods have been studied first and the required...