Amalgamation of advanced oxidation process with biological techniques for treatment of tannery wastewater

IF 3 3区地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY

Physics and Chemistry of the Earth Pub Date : 2025-02-01 DOI:10.1016/j.pce.2025.103883

Selvabharathi Gopal , Jaya Jayabalan , Dhanalakshmi Jayaraman , Muthumari Perumal , Vivek Mariappan Santhi

{"title":"Amalgamation of advanced oxidation process with biological techniques for treatment of tannery wastewater","authors":"Selvabharathi Gopal , Jaya Jayabalan , Dhanalakshmi Jayaraman , Muthumari Perumal , Vivek Mariappan Santhi","doi":"10.1016/j.pce.2025.103883","DOIUrl":null,"url":null,"abstract":"<div><div>This present study was examined by Amalgamation of advanced oxidation process with biological techniques for treatment of tannery wastewater. Non-biodegradable as it confined substantial amount of organic compounds whose degradation was not possible by conventional biological treatment in wastewater. Non-biodegradable as it confined substantial amount of organic compounds whose degradation was not possible by conventional biological treatment in wastewater. The pre-treatment of wastewater by AOP converts the recalcitrant organic pollutants to simpler and biodegradable compounds allowing the wastewater to be treated by subsequent biological treatment. The combined solar photo-Fenton and solar photo catalysis method has been studied by means of central composite design proved that the pH, Fe<sup>2+</sup>, H<sub>2</sub>O<sub>2,</sub> TiO<sub>2</sub> dosage, COD removal efficacy affected positively. The optimal operation parameters such as pH = 7, Fe<sup>2+</sup> = 0.5 g/L, H<sub>2</sub>O<sub>2</sub> = 1.8 g/L and TiO<sub>2</sub> = 0.2 g/L. Under this condition, removal efficacy COD = 88%, BOD = 82%, colour = 90% and Chromium (III) = 80% attained at 240 min. For the coupling with biological treatment, it was achieved that the removal efficacy COD = 98% and colour = 95% was achieved at 95 min. The combined process proven an alternate and a cost-effective methodology for the treatment of tannery wastewater to comply with applicable current regulations worldwide and ensuring the quality of treated wastewater for reuses purposes.</div></div>","PeriodicalId":54616,"journal":{"name":"Physics and Chemistry of the Earth","volume":"138 ","pages":"Article 103883"},"PeriodicalIF":3.0000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics and Chemistry of the Earth","FirstCategoryId":"89","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1474706525000336","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

This present study was examined by Amalgamation of advanced oxidation process with biological techniques for treatment of tannery wastewater. Non-biodegradable as it confined substantial amount of organic compounds whose degradation was not possible by conventional biological treatment in wastewater. Non-biodegradable as it confined substantial amount of organic compounds whose degradation was not possible by conventional biological treatment in wastewater. The pre-treatment of wastewater by AOP converts the recalcitrant organic pollutants to simpler and biodegradable compounds allowing the wastewater to be treated by subsequent biological treatment. The combined solar photo-Fenton and solar photo catalysis method has been studied by means of central composite design proved that the pH, Fe²⁺, H₂O_2, TiO₂ dosage, COD removal efficacy affected positively. The optimal operation parameters such as pH = 7, Fe²⁺ = 0.5 g/L, H₂O₂ = 1.8 g/L and TiO₂ = 0.2 g/L. Under this condition, removal efficacy COD = 88%, BOD = 82%, colour = 90% and Chromium (III) = 80% attained at 240 min. For the coupling with biological treatment, it was achieved that the removal efficacy COD = 98% and colour = 95% was achieved at 95 min. The combined process proven an alternate and a cost-effective methodology for the treatment of tannery wastewater to comply with applicable current regulations worldwide and ensuring the quality of treated wastewater for reuses purposes.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Physics and Chemistry of the Earth 地学-地球科学综合

CiteScore

5.40

自引率

2.70%

发文量

176

审稿时长

31.6 weeks

期刊介绍： Physics and Chemistry of the Earth is an international interdisciplinary journal for the rapid publication of collections of refereed communications in separate thematic issues, either stemming from scientific meetings, or, especially compiled for the occasion. There is no restriction on the length of articles published in the journal. Physics and Chemistry of the Earth incorporates the separate Parts A, B and C which existed until the end of 2001. Please note: the Editors are unable to consider submissions that are not invited or linked to a thematic issue. Please do not submit unsolicited papers. The journal covers the following subject areas: -Solid Earth and Geodesy: (geology, geochemistry, tectonophysics, seismology, volcanology, palaeomagnetism and rock magnetism, electromagnetism and potential fields, marine and environmental geosciences as well as geodesy). -Hydrology, Oceans and Atmosphere: (hydrology and water resources research, engineering and management, oceanography and oceanic chemistry, shelf, sea, lake and river sciences, meteorology and atmospheric sciences incl. chemistry as well as climatology and glaciology). -Solar-Terrestrial and Planetary Science: (solar, heliospheric and solar-planetary sciences, geology, geophysics and atmospheric sciences of planets, satellites and small bodies as well as cosmochemistry and exobiology).