Degradation of phenolic wastewater by ozonation and Fe-based catalytic ozonation in multi injection bubble column reactor

Sarah V. Ghaisani, Dionisius P. Wahyudi, Ria Wulansarie, Setijo Bismo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The concept of liquid waste describes phenol compounds as dangerous pollutants because of the toxicity they confer, corrosion and carcinogenicity. They are actually found in many industrial wastewaters and widely studied because of its adverse effects on the environment. The idea behind this study was due to the existence of significant weaknesses in conventional processing to degrade or remove phenol compounds in industrial wastewater hence necessitating the use of the ozonation technology. This research further aims to evaluate the performance of this technique in multiple injection columns, with or without the use of catalysts (e.g. Fe), in the degradation of phenolic wastewater. The process involved the variation of wastewater discharged (255, 405, 495) mL/min, air flow rate (8, 10, 12) L/min and the amount of the catalyst in weight (50, 100, 200) g to be investigated. Furthermore, the trend of decreasing phenol and COD levels was observed, using a UV-vis spectrophotometer. The results of this study indicate the degradation process with and without catalytic ozonation, extracted phenol up to 99.12% and 99.48% respectively, while the amount of COD reduced were 50.72% and 77.69%. The optimum condition for the treatment process was obtained at pH 12 with an air and wastewater flow rate of 10 L/min and 0.495 L/min respectively in non-catalyzed ozonation method. Furthermore, the use of Fe-based catalysts negatively affected the performance of the process as their presence seems to overload the performance of the ozonation, thereby serving as an inhibitor of phenol oxidation.

Original languageEnglish
Title of host publication4th International Tropical Renewable Energy Conference, i-TREC 2019
EditorsEny Kusrini, I. Gde Dharma Nugraha
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735420144
DOIs
Publication statusPublished - 3 Sep 2020
Event4th International Tropical Renewable Energy Conference 2019, i-TREC 2019 - Bali, Indonesia
Duration: 14 Aug 201916 Aug 2019

Publication series

NameAIP Conference Proceedings
Volume2255
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Tropical Renewable Energy Conference 2019, i-TREC 2019
Country/TerritoryIndonesia
CityBali
Period14/08/1916/08/19

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