Coagulation and advanced oxidation processes in the treatment of olive mill wastewater (OMW)

2010 ◽  
Vol 24 (1-3) ◽  
pp. 251-256 ◽  
Author(s):  
Walid K. Lafi ◽  
Mohammad Al-Anber ◽  
Zaid A. Al-Anber ◽  
Mohammad Al-shannag ◽  
Adnan Khalil
Keyword(s):  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Olive Mill Wastewater ◽  
Oxidation Processes ◽  
Olive Mill

Optimal conditions for olive mill wastewater treatment using ultrasound and advanced oxidation processes

2020 ◽  
Vol 700 ◽  
pp. 134576 ◽  
Author(s):  
Abeer Al-Bsoul ◽  
Mohammad Al-Shannag ◽  
Muhammad Tawalbeh ◽  
Ahmed A. Al-Taani ◽  
Walid K. Lafi ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Olive Mill Wastewater ◽  
Optimal Conditions ◽  
Oxidation Processes ◽  
Olive Mill

scholarly journals Persulfate Process Activated by Homogeneous and Heterogeneous Catalysts for Synthetic Olive Mill Wastewater Treatment

Water ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3010
Author(s):  
Eva Domingues ◽  
Maria João Silva ◽  
Telma Vaz ◽  
João Gomes ◽  
Rui C. Martins
Keyword(s):  
Phenolic Compounds ◽  
Red Mud ◽  
Advanced Oxidation Processes ◽  
Heterogeneous Catalysts ◽  
Advanced Oxidation ◽  
Iron Sulfate ◽  
Toxicity Tests ◽  
Oxidation Processes ◽  
Toc Removal ◽  
Olive Mill

Wastewaters from the olive oil industry are a regional environmental problem. Their phenolic content provides inherent toxicity, which reduces the treatment potential of conventional biological systems. In this study, Sulfate Radical based Advanced Oxidation Processes (SRbAOPs) are compared with advanced oxidation processes (namely Fenton’s peroxidation) as a depuration alternative. Synthetic olive mill wastewaters were submitted to homogeneous and heterogeneous SRbAOPs using iron sulfate and solid catalysts (red mud and Fe-Ce-O) as the source of iron (II). The homogenous process was optimized by testing different pH values, as well as iron and persulfate loads. At the best conditions (pH 5, 300 mg/L of iron and 600 mg/L of persulfate), it was possible to achieve 39%, 63% and 37% COD, phenolic compounds and TOC removal, respectively. The catalytic potential of a waste (red mud) and a laboratory material (Fe-Ce-O) was tested using heterogenous SRbAOPs. The best performance was achieved by Fe-Ce-O, with an optimal load of 1600 mg/L. At these conditions, 27%, 55% and 5% COD, phenolic compounds and TOC removal were obtained, respectively. Toxicity tests on A. fischeri and L. sativum showed no improvements in toxicity from the treated solutions when compared with the original one. Thus, SRbAOPs use a suitable technology for synthetic OMW.

scholarly journals Advanced oxidation technologies for the treatment and detoxification of olive mill wastewater: a general review

2019 ◽  
Vol 9 (4) ◽  
pp. 463-505 ◽  
Author(s):  
Reda Elkacmi ◽  
Mounir Bennajah
Keyword(s):  
Olive Oil ◽  
Advanced Oxidation Processes ◽  
Advanced Oxidation ◽  
Olive Mill Wastewater ◽  
Mediterranean Countries ◽  
Quality Of Waters ◽  
Oil Sector ◽  
High Treatment ◽  
Olive Mill

Abstract Olive oil production has an economic importance for Mediterranean countries, ensuring employment opportunities and export earnings. The crushing units produce two types of residues, one solid (pomace) and the other liquid, called olive mill wastewater (OMW). This by-product has adverse effects on the olive oil sector and particularly on the quality of waters into which they are discharged. Hence, there is a critical need to orient the scientific research toward the treatment of this hazardous waste. Several techniques have been proposed and developed for OMW management. However, the advanced oxidation processes (AOP) remain the most advantageous with high treatment efficiencies. This trend allowed achieving a significant detoxification of OMW. A considerable amount of effort has been expanded to provide detailed and critical reviews on the use of this alternative technology in the treatment of water and wastewaters. Regrettably most, if not all, of these review papers were not focused mainly on OMW application. This paper aims to highlight the ancient and recent progress of various types of oxidation techniques for OMW treatment. Moreover, principles, advantages, limitations, and efficiencies of each method are presented, to gain a more scientific understanding of the most feasible approach regarding the treatment of this harmful residue.

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