Removal of Volatile Organic Compounds (VOCs) of Deodorant by Adding a Metal Oxide to the Essential Oils

Abstract

VOCs emissions from industries cause the air pollution and odor. In the industrial facilities, the existing odor treatment techniques have limits and problems. In this study, the optimum essential oil and metal oxide selected by screening test. lavender oil, cypress oil and TiO2 were determined by deodorant materials and those were blended by 5%, 45%, 10%, respectively. In addition, the result of batch type experiments depending on the dilution rate, injection, rate, temperature showed that the optimum condition of deodorant is 6 mL of injection rate, and 200 times of dilution rate and the removal efficiency increased in proportion with temperature. In addition, the activation energy was calculated from the rate equation, which appeared in the 3-4 times lower than conventional deodorants.

Oxygen demand of waters associated with the use of sewage sludge compost and limestone outcrop as a filtration system

“…The composted sewage sludge (SW) and limestone outcrop residues (LRs) are commonly used in land rehabilitation, soil improvement, and techno sol making and can influence the mobility of organic compounds into groundwater [3e5]. Composting has become one of the main sustainable options to be applied for sewage sludge treatment [6,7] because of less cost and recycling of nutrient-rich organic fertilizers [8]. These treatments are particularly suitable for certain soils and allow applications to land over different times or terrains than otherwise would be the case.…”