1.8 the benefits expected to be received. 1.8.1 applied in the design of constructed wetland treatment system for a floating island system (Floating Island Wetland Treatment) to reduce nitrogen, phosphorus and formaldehyde in the reservoir, which will allow reducing the problems related to the growth of the algae quickly. Until then the raw water supply, the production may not be. 1.8.2 is reducing the use of chemicals. Substances of high cost, color support, and residue using local materials and technologies that are not complicated.1.8.3 is bringing the use of vetiver. In addition to the prevention of soil erosion
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