There are several types of waste, municipal waste (household waste) that a fluid is one of the environmental problems that are very well interfere with the existing watercourse. It is because of some content in the waste, including chemical and biological rubbish.
These residues can in principle be broken down by itself in nature, but it will take a long time for neutering.
To accelerate the neutralization of the waste treatment system may need to decipher the biological and chemical substances in water that can be accepted by nature without harming fish or plants. Process that usually takes many years becomes nature, but with this system, it only takes 12 to 24 hours.
Usually, the treatment plant consists of several processing units as follows:
1. First Phase of initial treatment
Screen with a bar mounted in the tank that serves as the first filter processing solids settle or float and objects with a diameter that can be solved. The droppings of the cleaning process and the decision manually.
2. The first stage of processing
Form of initial processing at the waste water treatment plant is the presence, acting as a floating bath oil or grease catcher. The bathtub is necessary because the waste can be processed waste is to be a servant in the kitchen. After passing through the flotation units then the units will be the primary clarifier tanks precipitated solid waste.
3. The second phase of treatment
Basic process of waste is in this second phase of the experiment in the biological treatment process that the unit rotating biological contractor (RBC). The RBC is the degradation of pollutants, microorganisms that grow on the disk rotating disk (rotor disk) Microorganisms will grow and attach to form the rotor disk of biomass / biofilm.
Gravity drainage of waste produced by the high water level in zone 4 below the water level in the 3, 2 and 1. Waste water will be treated by a biomass which grows on the band in each successive disc areas zone 1 to 4. Biomass grown in the rotor disk will have contact with oxygen in the air at the time was above the water resulting from the transfer of oxygen. The rapid growth of gangs in the biomass produced in the areas of disk and a progressive reduction in the next area. Physics of the biomass in Zone 1 will be more daring with the strands of a dark brown again. While the area is will thin with light brown or yellowish.
Sewage in 4 is quite clear the contents of the BOD, and the suspension base material. In this area, most of the water is recycled back into the tank as soon as precipitation and partly transferred to a final resolution purpose.
Recycling is to provide direct access to the water content of the BOD concentration of oxygen is low, but high enough so that it will help the weight of a new waste water treatment units.
4. The final processing stage
The plant is the last unit of the final clarifier settling to reduce suspended solids and biomass pellets peeling.
The water that comes out after going through the above steps, when it was discovered the body is clear and free of solids discharged into rivers on the right.