{"id":989065,"date":"2024-07-18T17:35:11","date_gmt":"2024-07-18T17:35:11","guid":{"rendered":"https:\/\/cevtekaritma.com\/?p=989065"},"modified":"2024-07-18T18:18:45","modified_gmt":"2024-07-18T18:18:45","slug":"mbbr-paket-aritma-tasarim-ilkeleri","status":"publish","type":"post","link":"https:\/\/cevtekaritma.com\/en\/blog\/mbbr-paket-aritma-tasarim-ilkeleri\/","title":{"rendered":"Design Principles MBBR Package- Containerized Wastewater Treatment Unit"},"content":{"rendered":"
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Disclosure of the Selected Process of Wastewater Treatment Plant<\/strong><\/h2>\n

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In biological wastewater treatment, suspended or attached microorganisms can be used. The main purpose is to keep microorganisms in the bioreactor at high concentrations to allow them to use pollutants as a substrate and decrease the pollutant concentrations to acceptable levels. During the treatment the biomass concentration increases due to substrate utilization and the biomass should be separated from the treated water both to have high-quality effluent and also to use the sludge further.<\/p>\n

In attach growth processes, microorganisms are kept in the bioreactor by attaching them to solid carrier media. Depending on the carrier media, operational conditions of the bioreactor, and the wastewater characteristics, the biofilm thickness on the media may change between 100 \u00b5 and 10 mm. Substrate, oxygen, and nutrients diffuse through the stagnant liquid media and reach the biomass attached to solid media. The by-products originating from the biotransformation are released back into the liquid phase (Metcalf and Eddy, 2014). This transportation is provided in the following Fig. 1.<\/p>\n

Biomass on the media grows as the substrate is utilized. The growth of biomass does not naturally continue indefinitely, and when it reaches a certain thickness, it detaches and enters the aqueous phase. The biomass released into the water must be removed through sedimentation. However, in place of the detached biomass, new biofilm growth on the carrier begins and the process continues in this cyclic manner as illustrated in the following Fig. 2.<\/p>\n

\"Biyofilme<\/p>\n

Fig. 1. Substrate transport to the biofilm (Wang et al., 2020)<\/b><\/p>\n

\"Biofilm
Biofilm Life Cycle<\/figcaption><\/figure>\n

Fig. 2 The biofilm life cycle on carrier media during wastewater treatment (Wang et al., 2020)<\/b><\/p>\n

Microorganisms are preferred to live attaching to solid carrier media due to the following advantages (Rittmann and McCarty, 2020);<\/p>\n