Hydrogen gas production and pollutant removal from olive mill wastewater by electrohydrolysis

Erdem S., Bag H., Yarimtepe C. C., Ince O., Oz N. A.

2nd International Conference on Energy Production and Management in the 21st Century - The Quest for Sustainable Energy (EQ), Ancona, Italy, 6 - 08 September 2016, vol.205, pp.271-277 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 205
  • Doi Number: 10.2495/eq160251
  • City: Ancona
  • Country: Italy
  • Page Numbers: pp.271-277
  • Çanakkale Onsekiz Mart University Affiliated: Yes


Olive Mill Wastewater (OMW) is characterized by strong organic content and also by a high number of inhibitory/complex compounds such as phenolic ones. An effective treatment method has not been sufficiently defined for the wastewater, so far. Therefore, the treatment of OMW is a major concern for manufacturers in Mediterranean countries. There is a growing interest for the application of alternative treatment methods. In this study, OMW was subjected to 10 V DC voltage for hydrogen gas production and COD, sCOD, total solids and total suspended solids, turbidity and color removal. Application of electrohydrolysis at 10 V DC for six hours; 1500 +/- 50 ml gas was produced and hydrogen content of gas (88%) was obtained. After 24 hours of settling, COD, sCOD, turbidity, TS, TSS and color removal efficiencies were determined as 75%, 56%, 93%, 61%, 94% and 92% in supernatant, respectively.