The principle of the community is the main peanuts easy is to reduce the amount of dirt that is in the water, waste, including waste disposal, water sources, such as the investment in waste disposal to exclude scraps that came from the water, wash the container and a wastewater treatment plant before draining into the river and canals. The criteria to make a community wastewater treatment system that is suitable for households, housing and small buildings, there are 3 categories are. 1. wastewater treatment plants must be certified according to the quality standards from the building. 2. There should be a treatment that is cheap and easy to maintain control. 3. is there a way to deal with what's left, and what treatment such as sewage sludge. In addition to reducing waste water treatment methods are also another format is very popular in the community is the initial treatment and then leave the soil because it is absorbed into the system that is not cheap and it maintenance complex is less than other systems, but there are limitations in the landscape is an area that is in the pot, and watershed area that is in a high level are not suitable for this method. The need to have a water treatment. The objective must be to wastewater before discharging into the River because of the following reasons. 1. to destroy the active disease, whether they are born into the germs or toxins to be removal or destruction in a safe level before dropping down to the river. 2. to change the nature of the waste water in the waste water, which can be recycled.3. to not bother troubling incident. Because of the damage that is in the water with a different physical attribute may interfere with nice people. 4. to prevent the pollution crisis, because it will cause problems when applied to consumer citizens, and may destroy the creatures that live in the water.5. the toxins from the bacteria that causes cholera, diseases of the digestive tract, these diseases are caused by twisting, which is an infection in the drinking water that has been contaminated human stools. From waste water is not treated. 6. toxic substances from the virus, which is very small and cannot be seen with the eye, please feel free to contact each other by eating together.7. the venom from the pathology, such as roundworm, earthworms. Roundworm, pinworm can call into your body by eating food containing the substance to comingle or demolishing hotel. Make an unusual symptoms are diarrhea, abdominal travel photos with a stylus as ut, etc.
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