Using water hyacinth because waste water filter water hyacinth has a feature acts as a filter, which is called natural water filtration using water hyacinth weed, which is many do absorb toxic chemicals, sewage and wastewater from the source makes several suspensions of solids that contaminated water interception filter. In addition, there are a lot of root system to help filter out microorganisms and organic matter inhabited island located at the root will help absorb organic matter with another way water hyacinth roots absorb nutrients in the water, nitrogen and phosphorus in the water causes the waste is eliminated, and at the same time. It must bring out the water hyacinth from the marshes regularly once every 10 weeks, so no water hyacinth has obscured the Sun until the fertility that is shedding into the marshes.
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