Pesticide removal by the bioaugmentation process in secondary treated wastewater
| Autor: | Rim Werheni Ammeri, Salma Kloula, Giuseppe Di Rauso Simeone, Ines Mehri, Wafa Hassan, Abdennaceur Hassen |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Water Quality Research Journal, Vol 58, Iss 2, Pp 111-127 (2023) |
| Druh dokumentu: | article |
| ISSN: | 2709-8044 2709-8052 |
| DOI: | 10.2166/wqrj.2023.001 |
| Popis: | The work was focused on the effect of the bioaugmentation process on STWW contaminated by pentachlorophenol (PCP: 100 mg L−1) by Pseudomonas putida AE015451. The monitoring of bioaugmentation treatments was assessed by chloride content determination via high-performance liquid chromatography (HPLC), optical density (OD) for microbial biomass determination, and pyoverdine and biofilm production. The process of bioaugmentation by a PGPR Pseudomonas strain showed a high-efficiency removal rate of PCP (100 mg L−1). The contaminant decreased up to 92% after 168 h. The production of pyoverdine and the formation of bacterial biofilm by the strain Ps. putida AE015451 showed an important role in tolerating the toxicity of PCP by using it as a carbon source. The obtained result proved that the pyoverdine production and biofilm formation help the Pseudomonas bacteria to tolerate to the stressed condition as pesticide. Moreover, the co-existence of the iron and PCP molecule ameliorate its biodegradation. HIGHLIGHTS The bioaugmentation of STWW is an efficient alternative to the conventional methods.; After 72 h, 90% of PCP were degraded by the action of Ps. putida AE015451.; The degradation process was enhanced by the pyoverdine production and Fe addition.; Biofilm production enhanced the resistance to PCP and then the degradative process.; |
| Databáze: | Directory of Open Access Journals |
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