This combined advanced oxidation process seems to be a promising one to enhance the COD removal when it is used after biological treatment.
📌 3 Key Takeaways
🎯
Objective & Hypothesis:In this study, the efficiency of several advanced oxidation processes such as ultrasonic oxidation, heterogeneous Fenton-like oxidation, ultrasound or UV assisted heterogeneous Fenton-like oxidation, heterogeneous sonophotoFenton oxidation and oxidation with ultrasound+UV light combination was tested for COD reduction in effluents of purified terephthalic acid (PTA) production.
📊
Key Findings & Data:The highest COD removal was achieved as 18% when UV light assisted heterogeneous Fenton-like oxidation was applied to PTA manufacturing wastewater in the presence of 5 wt% iron containing TiO2 catalyst.
💡
Conclusion & Impact:This combined advanced oxidation process seems to be a promising one to enhance the COD removal when it is used after biological treatment.
In this study, the efficiency of several advanced oxidation processes such as ultrasonic oxidation, heterogeneous Fenton-like oxidation, ultrasound or UV assisted heterogeneous Fenton-like oxidation, heterogeneous sonophotoFenton oxidation and oxidation with ultrasound+UV light combination was tested for COD reduction in effluents of purified terephthalic acid (PTA) production. The highest COD removal was achieved as 18% when UV light assisted heterogeneous Fenton-like oxidation was applied to PTA manufacturing wastewater in the presence of 5 wt% iron containing TiO2 catalyst. This combined advanced oxidation process seems to be a promising one to enhance the COD removal when it is used after biological treatment.
DÜKKANCI, M., GÜNDÜZ, G., EZDEŞİR, A., AYKAÇ, H. (2016). APPLICATION OF SEVERAL ADVANCED OXIDATION PROCESSES FOR THE DESTRUCTION OF ORGANICS IN EFFLUENTS OF PTA PRODUCTION. Eskişehir Technical University Journal of Science and Technology A - Applied Sciences and Engineering, Cilt: 17 - Sayı: 2, 233–249. https://ajindex.com/articles/196814
Chidambara RBB, Ramkumar N, Sıraf AHJ, Chidambaram C. Biodegradation of acetic, benzoic, isophthalic, toluic and terephthalic acids using a mixed culture: Effluents of PTA production Trans. IChemE.,75B:245-56, 1997.
Zhang Z, Cheng XX, Wan SP, Sun YQ, Zhu SL, Zhao CJ, Pan WY. Degradability of five aromatic compounds in a pilot wastewater treatment system Int. Biodaterioration and Biodegradation., 58:94-8,
Anbia M, Salehis S. Synthesis of polyelectrolyte-modified ordered nanoporous carbon for removal of aromatic organic acids from purified terephthalic acid wastewater Chem. Eng. Res. Design. 90:975-, 2012. Martin DS. The adsorption of aromatic acids onto the graphite basal surface Surf. Sci. 536:15-23,
Daramola MO, Aransiola EF, Adeogun AG. Comparative study of thermophilic and mesophilic anaerobic treatment of purified terephthalic acid (PTA) wastewater Nat. Sci. 3:371-8, 2011.
Deshmukh NA, Goel VS, Joshi JB, Mathew T. Kinetics of aerobic biological oxidation of purified terephthalic acid plant waste Process Saf. Environ. 83:224-30, 2005.
Karthik M, Dafale N, Pathe P, Nandy T. Biodegradability enhancement of purified terephthalic acid wastewater by coagulation-flocculation process as pretreatment J. Hazard. Mater. 154:721-30,
Verma S, Prasad B, Mishra IM. Pretreatment of petrochemical wastewater by coagulation and flocculation and the sludge characteristics J. Hazard. Mater. 178:1055-64, 2010.
Bolova E, Gündüz G, Dükkancı M. Heterogeneous Fenton-like Degradation of Orange II in Water using FeZSM-5 Zeolite Catalyst Int. J. Chem. React. Eng. 10(A18): 1-21, 2012.
Dükkancı M, Gündüz G. Sonolytic Degradation of Butyric Acid in Aqueous Solutions J. Environ. Manage. 129: 564-8, 2013.
Sponza DT, Oztekin R. Destruction of some more or less hydrophobic PAHs and their toxicities in a petrochemical industry wastewater with sonication in Turkey Bioresource Technol. 101: 8639-48,
Thiruvenkatachari R, Kwon TO, Jun JC, Balaji S, Matheswaran M, Moon SI. Application of several advanced oxidation processes for the destruction terephthalic acid (TPA) J. Hazard. Mater.142: 14, 2007.
Wen YZ, Tong SP, Zheng KF, Wang LL, Lv JZ, Lin J. Removal of terephthalic acid in alkalized wastewater by ferric chloride J. Hazard. Mater. B138: 169-72, 2006.
Shafaei A, Nikazar M, Arami M, Photocatalytic degradation of terephthalic acid using titania and zinc oxide photocatalysts: Comparative study Desalination. 252: 8-16, 2010.
Chakraborty AK, Rawal SB, Han SY, Chai SY, Lee WI. Enhancement of vi