Efficient Spent Sulfidic Caustic (SSC) Wastewater Treatment Using Nano TiO₂-Bottom Ash (NTB) Composite
Jong Kyu Kim1, Jong Ho Kim2, Luiza Campos3
1Department of Civil Engineering, Kyungnam University, Changwon, 51767, Republic of Korea.
Abstract:
Novel composites with nano-sized TiO₂ synthesized on the surface of bottom ash (NTB) were prepared for treatment of spent sulfidic caustic (SSC) wastewater. The efficiency of SSC wastewater treatment was compared and evaluated by using NTBs made with organic binder and inorganic binder, respectively. The treatment efficiency of NTB composite made with organic binder was higher than that of NTB composite made with inorganic binder. Although NBT composite made with inorganic binder had many pores on the surface, the white cement used as binder was excessively applied to the surface, and amount of coated nano-sized TiO₂ was decreased. The photocatalytic activity of nano-sized TiO₂ is more effective for SSC wastewater treatment than surface adsorption ability of surface pores.
Related Concept Videos
Preparation and Reactions of Sulfides
Structure and Nomenclature of Thiols and Sulfides
Classifying Matter by Composition
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
Composite Bodies
Composite bodies have widespread applications in mechanical engineering, from automobiles to aircraft to rockets. For example, an automobile wheel comprises...
Composition of Blood
Formed elements constitute the remaining 45% of the blood volume. These...
Composition of Body Fluids


