期刊名称：EQA - International Journal of Environmental Quality
印刷版ISSN：2281-4485
出版年度：2021
卷号：44
页码：9-17
DOI：10.6092/issn.2281-4485/11667
出版社：Alma Mater Studiorum - University of Bologna
摘要：La biodégradation des effluents d'huile de palme (POME) a été étudiée afin de mesurer la charge microbienne du POME rejeté dans l'environnement à différents stades de dégradation. Les résultats ont montré que la numération microbienne totale (TMC) diminuait avec le temps. Les études physico-chimiques ont en outre révélé la présence de niveaux relativement faibles de sodium, potassium, calcium, magnésium et fer. La concentration de nitrate était relativement élevée, 70,13 mg / L. La demande biologique en oxygène (DBO) et la demande chimique en oxygène (DCO) étaient également élevées respectivement de 2250 mg / L et 3360 mg / L. Des valeurs élevées de DBO et de DCO sont des indicateurs importants de composants organiques et inorganiques élevés de l'effluent et de possibles conséquences négatives sur l'environnement. La présence des espèces suivantes Clostridium, Proteus, Pseudomonas et Micrococcus impliquait une dégradation possible de l'effluent.↓La biodegradazione degli effluenti di olio di palma (POME) è stata studiata al fine di misurare la carica microbica della POME scartata nell'ambiente a diversi stadi di degradazione. I risultati hanno mostrato che la conta microbica totale (TMC) è diminuita con il tempo. Gli studi fisico-chimici hanno inoltre rivelato la presenza di livelli relativamente bassi di sodio, potassio, calcio, magnesio e ferro. La concentrazione di nitrato era relativamente alta, 70,13 mg / L. Anche la domanda biologica di ossigeno (BOD) e la domanda chimica di ossigeno (COD) erano elevate rispettivamente di 2250 mg / L e 3360 mg / L. Valori elevati di BOD e COD sono indicatori importanti di elevate componenti organiche e inorganiche dell'effluente e di possibili conseguenze ambientali negative. La presenza delle seguenti specie Clostridium, Proteus, Pseudomonas e Micrococcus implicava una possibile degradazione dell'effluente.
其他摘要：The raw palm oil mill (POME) effluent has an extremely high content of degradable organic matters as a result of unrecovered palm oil during production of palm oil. The aim of this study is to evaluate the microbial load and biodegradation of POME by microorganisms at different stages of discharge. Standard dilution methods were used for the isolation of bacteria and fungi. The estimation of colony forming unit per mL (cfu/mL) was assessed using 10-fold serial dilution method. The results showed that the total microbial count (TMC) decreased with time. Statistical analysis using analysis of variance (ANOVA) further revealed a significant variation in microbial load after 28 days of discharge. This was followed by a significant decrease after 36 days when compared with other samples. The physicochemical studies further revealed the presence of relatively low levels of sodium, potassium, calcium, magnesium and iron. The concentration of nitrate was relatively high, 70.13 mg/L. The biological oxygen demand (BOD) and the chemical oxygen demand (COD) were also high 2250mg/L and 3360mg/L respectively. High BOD and COD values are important indicators of high organic and inorganic components of the effluent and possible negative environmental consequences. The presence of the following species Clostridium, Proteus, Pseudomonas, and Micrococcus implied possible degradation of the effluent.
