Contaminant-Removal from Wastewater in a Secondary Clarifier by Sedimentation
Application ID: 2163
Wastewater treatment is a several-step process for removing contaminants. Firstly, large, solid particles are removed through sedimentation, flotation, and filtration. And then in a second step, biological treatment causes the smaller particles to aggregate, forming so called flocs. These flocs can be more easily removed by processes such as sedimentation.
In a circular secondary clarifier, flocs are removed from water through sedimentation, where gravity causes the flocs to fall toward the tank bottom. However, the turbulent flow in the tank tends to mix the phases together, and thus has a negative effect on the separation.
This example studies the separation of flocs from water in a circular secondary clarifier. The object is to study the complex turbulent multiphase flow using the Mixture Model application mode.
This application was built using the following:CFD Module
The combination of COMSOL® products required to model your application depends on the physics interfaces that define it. Particular physics interfaces may be common to several products (see the Specification Chart for more details). To determine the right combination of products for your project, you should evaluate all of your needs in light of each product\'s capabilities, consultation with the COMSOL Sales and Support teams, and the use of an evaluation license.