Decolourization and removal of some organic compounds from olive mill wastewater by advanced oxidation processes and lime treatment

2006 ◽  
Vol 14 (5) ◽  
pp. 319-325 ◽  
Author(s):  
Mehmet Uğurlu ◽  
İbrahim Kula
2020 ◽  
Vol 700 ◽  
pp. 134576 ◽  
Author(s):  
Abeer Al-Bsoul ◽  
Mohammad Al-Shannag ◽  
Muhammad Tawalbeh ◽  
Ahmed A. Al-Taani ◽  
Walid K. Lafi ◽  
...  

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

2004 ◽  
Vol 49 (4) ◽  
pp. 273-277 ◽  
Author(s):  
B. Slomczynska ◽  
J. Wasowski ◽  
T. Slomczynski

The aim of the present study was to assess the effect of advanced oxidation processes (AOPs) (oxidation ozone and peroxide/ozone) on the toxicity of leachates from municipal landfill for Warsaw, Poland, using a battery of tests. AOPs used to pre-treat leachates were carried out in laboratory conditions after their coagulation with the use of FeCl3. The effects of the pre-treatment of leachates using the method of coagulation with FeCl3 depended on the concentration of organic compounds and with optimal conditions of the process ranged from 40 to 70%. Further pre-treatment of the leachates after coagulation, involving the use of oxidation with O3 and H2O2/O3, did not cause significant decrease of leachate toxicity. The data of this study demonstrated the usefulness of the battery of tests using Daphnia magna, Artemia franciscana, Scenedesmus quadricauda and Vibrio fischeri for the toxicity evaluation of raw and pre-treated leachates.


Water ◽  
2021 ◽  
Vol 13 (21) ◽  
pp. 3010
Author(s):  
Eva Domingues ◽  
Maria João Silva ◽  
Telma Vaz ◽  
João Gomes ◽  
Rui C. Martins

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.


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