Water is basically a transparent fluid that could be found in rain, oceans and lakes and is a major constituent of many organisms. As chemical compound, water molecule has 1 oxygen and 2 hydrogen atoms. Water is a liquid at standard pressure but this often exists on earth with its gaseous state, steam and solid state, ice. As a matter of fact, water is covering 71 percent of earth's surface.
Urban wastewater on the other hand is a different kind of water as this is a major threat both to health and to natural environment. This water should be treated well in treatment plants as this can be a carrier of organic pollution.
Wastewater is any type of water that has been affected in quality by the industrial, domestic, agricultural or commercial activities. Moving bed biofilm reactor (mbbr) treatment is a process that is carried out mainly for the purpose of transforming wastewater that couldn't be used by humans as it's dirty to an effluent that could be reused.
The treatment is focused at eliminating any dirty substances or impurities from water and in order to do that, different methods could be done and applied in so-called moving bed biofilm reactor (mbbr) treatment plant. As a matter of fact, wastewater treatment plants are sometimes called as water pollution plants or sewage treatment plants because this removes pollutants from the wastewater before they can be reused again. At the plants, there are many biological processes that's being followed to purify the water. For the treatment, this normally takes place around 7 hours only to remove most impurities from the wastewater but in natural environment, the same process can take weeks.
Separation - during this stage, it transfers the impurities to get rid of grease, oil and solids. Most of the time, this requires the process of eliminating solids that varies depending on concentration levels of impurities.
Sedimentation - for this stage, it makes use of gravity to remove the non-polar liquids and solids from the water. It's at this stage where the substances are actually heavier compared to water and collected at bottom of the basins. And to complete the elimination process, there are several steps that should follow.
Filtration - fine solids can be removed through filtration by using tools similar to barriers which attempt to get rid of matters via which the water is passing through. Either biological or chemical processes are used at this stage to remove the impurities.
Oxidation - this process is very effective in reducing toxicity of impurities and the treatment is converting some of the impurities to water, solids and carbon dioxide.
Any of the aforementioned process can be used by wastewater treatment plant to clean impurities in the water. Refer from a post at http://www.huffingtonpost.com/2012/11/08/mrsa-wastewater-treatment-plants_n_2083862.html.