Effectiveness assessment of olive mill wastewater treatment by combined process: Natural flotation and anaerobic-aerobic biodegradation


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Output type: Journal article

UM6P affiliated Publication?: Yes

Author list: Khattabi Rifi S., Aguelmous A., El Fels L., Hafidi M., Souabi S.

Publisher: Wiley: 12 months

Publication year: 2021

Journal: Water and Environment Journal (1747-6585)

ISSN: 1747-6585

eISSN: 1747-6593

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85100277254&doi=10.1111%2fwej.12689&partnerID=40&md5=5e573637c89fc4fcdd92555c3ade3338

Languages: English (EN-GB)


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Abstract

The present work intends to study the treatment of olive oil mill wastewater (OMW) by natural flotation followed by anaerobic-aerobic biodegradation, without dilution. After natural flotation, turbidity, chemical oxygen demand (COD) and polyphenol decreased by 37.7%, 3.7% and 3.3%, respectively. Whereas, anaerobic treatment removed 23.9% of nitrate, 29.1% of turbidity and 16.2% of polyphenol. However, intermittent aeration treatment showed the reduction of nitrate, turbidity and ammonium by 90%, 26.5% and 65.1%, respectively. In general, the combined natural flotation and anaerobic-aerobic treatment of OMW, without dilution, have led to reduced turbidity, COD, polyphenol, nitrate, ammonium and phosphorus by 67.5%, 29.1%, 25.2%, 93.9%, 77.1% and 81.8%, respectively. The germination index of the treated OMW was 69% after 30% of dilution. Finally, the proposed treatment process could be used in small and medium-sized industries as a simple, economical and effective method. Also, the produced water could be reused for irrigation. © 2021 CIWEM


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Last updated on 2021-10-06 at 23:19