Abstract
The objective of this study was to investigate the photocatalytic treatment of rose processing wastewater by using sunlight and TiO2. Rose processing wastewater contains high concentrations of chemical oxygen demand, high amount of solid matters and dark color. The effect of various operating conditions such as irradiation time, catalyst loading and pH on COD and color removal were determined. The highest color removal and COD removal was found to be 51.7 % and 15.7%, respectively with 2 g/L TiO2 catalyst dose at pH 4. Sunlight was used as an economic irradiation source for photocatalytic treatment of rose processing wastewater.
Highlights
Rose flower is seen as a symbol of purity, beauty, love and faith all over the world and it is grown in many regions especially Turkey, Bulgaria, Iran, India, China, northern African countries and Europe (Rusanov, 2011; Göktürk Baydar and Baydar, 2013; Nayebi et al, 2017)
During the rose oil distillation process rose flowers absorb about 33% of water and 67% of water is discharged as wastewater
The following results can be drawn from photocatalytic treatment of rose processing wastewater by sunlight / TiO2 process:
Summary
Rose flower is seen as a symbol of purity, beauty, love and faith all over the world and it is grown in many regions especially Turkey, Bulgaria, Iran, India, China, northern African countries and Europe (Rusanov, 2011; Göktürk Baydar and Baydar, 2013; Nayebi et al, 2017). Rose flowers bloom in May-June and harvesting period continues for about 40-45 days. During this period, rose flowers are collected daily and processed in facilities for producing rose oil, rose concrete, absolute and rose water. Wastewater is separated from waste rose petals and collected in lagoons (Fig. 1). These darky wastewater contains a high concentration of chemical oxygen demand (COD). Distillation process and as a result wastewater formation continues until the middle of July This period usually coincides with the clear, cloudless, sunny days, allowing the use of sunlight as a natural light source for photocatalytic oxidation processes. Because the accumulated wastewaters are exposed to sunlight all the summer
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Bilge International Journal of Science and Technology Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
