Feasibility analysis of homogenizer coupled solar photo Fenton process for waste activated sludge reduction

V. Godvin Sharmila, S. Adish Kumar, J. Rajesh Banu, Ick Tae Yeom, Ganesh Dattatraya Saratale

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

In this study, an attempt has been made to reduce the sludge using novel homogenizer coupled solar photo Fenton (HPF) process. At an optimum pH of 3 and Fe2+ to H2O2 dosage of 1:6, PF process yielded 63.7% solids reduction at a time interval of 45 min. Coupling of homogenizers with photo Fenton (PF) process effectively enhanced treatment efficiency. When homogenizer (specific energy - 1150.694 kJ/kg TS) was coupled with PF, a sharp increase in solid reduction 73.5% and decrease in reaction time (20 min) were observed. Cost benefit analysis revealed the efficiency of HPF process and achieved a net cost of 15.59 USD whereas PF achieved a negative net cost of −82.69 USD. Based on the above study it can be concluded that coupling of homogenizers with PF not only increased its efficiency but also make it field applicable.

Original languageEnglish
Pages (from-to)251-256
Number of pages6
JournalJournal of Environmental Management
Volume238
DOIs
StatePublished - 15 May 2019

Keywords

  • Cost analysis
  • Fenton oxidation
  • Homogenizer
  • Solar
  • Waste activated sludge

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