WATER TREATMENT PLANT DESIGN FOR DRINKING WATER SUPPLY SYSTEM OF WEST BANDUNG REGIONAL-1 (SINUMBRA)"

• Main Author: Laksmi Prameswari, Anggita
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/69157
• Institution: Institut Teknologi Bandung

The Sinumbra Metropolitan Regional Water Supply System is planned to serve several sub-districts in Bandung City, Cimahi City, Bandung Regency, and West Bandung Regency. With the percentage distance between the existing condition of drinking water services and the RISPAM targets for each City and Regency, the Sinumbra IPA is targeted to help achieve 80% access to drinking water in service areas. The raw water sources to be processed by the Sinumbra IPA consist of the Rancasuni River and springs from the Sinumbra Tea Plantation, namely Situ Bayongbong, Situ Nyonya, and Situ Hanafi. Based on the results of the analysis of raw water quality and the JICA Table and weighting using the SAW method, the selected unit configuration for the Sinumbra WTP consists of pipe line mixing, flocculation with baffles, sedimentation with plate settlers, rapid sand filters, and chlorination. Raw water sourced from rivers will be treated with complete processing while raw water sourced from springs will be directly flowed to a rapid sand filter. The Sinumbra WTP will be built with a 20 year planning period which is divided into 2 stages of development. The total investment cost to build a WTP with a processing capacity of 700 lps until 2042 is Rp. 43.816,840,000.00. This study used two methods in conducting financial feasibility analysis through determining the value of Net Present Value (NPV) and the value of Benefit Cost Ratio (BCR). The first development period obtained an NPV of Rp. 87,973,488,587 and a BCR of 3.40. While the second period obtained an NPV value of Rp652,000,521,331 with a BCR of 6.35. With NPV > 0 and BCR > 1, the construction of the Sinumbra WTP is financially feasible.