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Analysis of performance index of MBBR media for fish pond water treatment
- Aug 30, 2018 -

In the actual water treatment process, the performance of MBBR media for fish pond water treatment can be analyzed by some indicators. The first is the adhesion of the biofilm, the most important indicator of the quality of the filler. The amount of bioadhesion = the surface area to be protected (related to the design structure of the filler) × the amount of bio-attachment per unit surface area (related to the performance of the filler).


Followed by the properties of the filler, including surface properties, hydraulic properties and fluidization properties. Filler performance is the most important indicator of the amount of MBBR media for fish pond water treatment. The surface properties of the filler mainly depend on three aspects: 1. Surface structure, it is generally considered that the surface roughness is large, and the film speed is fast; 2. The surface potential is generally negatively charged by the microorganisms, and the surface of the filler is positively charged for the growth of microorganisms; Hydrophilic, the microorganism is a hydrophilic particle, and the filler is hydrophilic and suitable for microbial growth.


The hydraulic properties are mainly determined by the porosity and shape size. Under normal circumstances, the MBBR media for fish pond water treatment has a high volume and high porosity. Its shape and size will affect the flow of water and air. Finally, the fluidization performance is mainly related to the density of the filler. The density of the packing should be 0.97-1.03, and fluidization can be achieved with a small aeration or agitation.