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Soluble microbial products and performances assessment during OMW biological treatment by an activated sludge pilot


 
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1. Title Title of document Soluble microbial products and performances assessment during OMW biological treatment by an activated sludge pilot
 
2. Creator Author's name, affiliation, country Yasamine Jaouad; Laboratory of Hydrobiology, Ecotoxicology and Sanitation (LHEA URAC 33), Faculty of Science Semlalia, Cadi Ayyad University, B.P.2390, Marrakesh, Morocco National Center for Study and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Marrakesh, Morocco; Morocco
 
2. Creator Author's name, affiliation, country Tawfik El Moussaoui; Laboratory of Hydrobiology, Ecotoxicology and Sanitation (LHEA URAC 33), Faculty of Science Semlalia, Cadi Ayyad University, B.P.2390, Marrakesh, Morocco National Center for Study and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Marrakesh, Morocco; Morocco
 
2. Creator Author's name, affiliation, country Laila Mandi; Laboratory of Hydrobiology, Ecotoxicology and Sanitation (LHEA URAC 33), Faculty of Science Semlalia, Cadi Ayyad University, B.P.2390, Marrakesh, Morocco National Center for Study and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Marrakesh, Morocco; Morocco
 
2. Creator Author's name, affiliation, country Naaila Ouazzani; Laboratory of Hydrobiology, Ecotoxicology and Sanitation (LHEA URAC 33), Faculty of Science Semlalia, Cadi Ayyad University, B.P.2390, Marrakesh, Morocco National Center for Study and Research on Water and Energy (CNEREE), Cadi Ayyad University, B.P. 511, Marrakesh, Morocco; Morocco
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) Activated Sludge; Olive mill Wastewater; Soluble microbial products; Polyphenols; Performances
 
4. Description Abstract

Olive mill wastewater (OMW) is currently one of the most serious environmental pollution problems, because of its high potential to contaminate surface and ground waters. Untreated OMWW is a major problem for the wastewater treatment plants (WWTP) based on activated sludge because of its phenolic compounds content which inhibit microbial activity and growth.

This paper aims to assess the soluble microbial products (SMP) and treatment performances in activated sludge pilot plant (ASPP) depending the increasing OMW mass ratio F/M. The results highlight optimal performances of the system during the experiment. Indeed, the biomass concentration in bioreactor of ASPPwas high and reached5.71 gMLSS.L-1 for mixed liquor suspended solids (MLSS) and 4.86 gMLVSS.L-1for mixed liquor volatile suspended solids (MLVSS),the respirometric activity was very promising of about 9.95 mgO2.gmlvss-1.h-1which indicates good promptness of the biomass against the OMW increasing feedings. The results show also an important abatement of COD and polyphenols which both reached more than 90%. Moreover, HPLC analysis shows an important abatement of the most toxic polyphenols present in OMW, hydroxtyrosol and tyrosol.The SMP have a crucial importance for biological wastewater treatment systems because of their significant impacts on both treated effluent quality and treatment efficiency. In this study, their concentrations were significantly influenced by OMW increasing mass ratio F/M. Consequently, they reached a stable concentrations at end of the experimental study of 8 mg.L-1 for proteins and 17 mg.L-1 for polysaccharides.
 
5. Publisher Organizing agency, location
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 30-07-2018
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://revues.imist.ma/index.php/morjchem/article/view/11726
 
10. Identifier Digital Object Identifier (DOI) https://doi.org/10.48317/IMIST.PRSM/morjchem-v6i4.11726
 
11. Source Title; vol., no. (year) Moroccan Journal of Chemistry; Vol 6, No 4 (2018)
 
12. Language English=en En
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c) 2018 Moroccan Journal of Chemistry