Water Management Model For Water Conservation In The Downstream Of Petanu River Based On Environment

Eryani, I Gusti Agung Putu and Suranata, Putu and Jawat, I Wayan (2016) Water Management Model For Water Conservation In The Downstream Of Petanu River Based On Environment. International Journal of Latest Research in Engineering and Technology, 2 (8). pp. 34-39. ISSN 2454 5031

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Abstract

Bali has an area of 563 666 ha, consists mostly on land with a slope between 0-2% up to 15- 40%. Water is a major requirement for the process of life on the earth, which means there would be no life on this earth if there is no water. Water is an environmental components that are affected by other components. Bad quality of water will cause the environment to be bad. River water flows from upstream to downstream will be discharged into the sea through the mouth of the river (Loloan). The water flowing in a river surface water caused by rain, springs, groundwater and household waste. This study will assess the potential magnitude of surface water in terms of quantity and quality of water for downstream Petanu in Gianyar, and drafting a model of water management in downstream river Petanu for water conservation based environment. This research method uses quantitative research using primary data of water quality and quantity of water in the river downstream of Petanu River compared with secondary data analysis using software RIBASIM. Calculation of length of the river basin area and the main use of Arc. GIS 10. This research obtains Petanu basin area amounted to 96.970 km2, with a length of 46.770 km along the main river. Maximum discharge amounted to 2,819 m3 / sec. Water quality downstream in July 2016 for the BOD was 2.16 mg / L, COD 6.4 mg / L and DO of 4.83 mg / L. Potential Petanu river water downstream of the water quality can meet the water quality standard Class I and of the quantity can be managed to support water conservation in Gianyar Bali Province

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