The technology was used to eliminate color in waste water in the fish pond. There are several ways, including physical, biological, and chemical methods, each method has different restrictions. Using ozone to control the flow rate and the concentration of ozone to suit applications. There are all kinds of different UV devices effective. To get rid of moss green and germs better all the same, just a different way to install. It is important to choose a power (W) suitable for the volume of a fish pond and look addicted individual filtering system it is very important to select an appropriate material to use because it is each type of material properties using different tasks. The experiment was done by using a chemical way to involved in finding the values of water, such as TS, COD, DO, pH, and the flow of ozone. It has been brought to trial, compared with the standard value of the Department of environment that exists in the appropriate criteria for raising ornamental fish.
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