@article{E. Afiatun_S. Notodarmojo_A.J. Effendi_K.A. Sidarto_2018, title={COST MINIMIZATION OF RAW WATER SOURCE BY INTEGRATED WATER SUPPLY SYSTEMS (A CASE STUDY FOR BANDUNG, INDONESIA) }, volume={14}, url={https://geomatejournal.com/geomate/article/view/2822}, abstractNote={<p>Due to the population growth, the scarcity of raw water presents a challenging problem for the<br>establishment of an effective urban water supply system. In this research, we address the scarcity of water<br>source for a highly populated city, like Bandung, and then minimize the cost associated with the development<br>of effective urban water supply systems. We apply the concept of Integrated Water Supply System (IWSS), a<br>concept that utilizes the treated wastewater as an alternative source of water. This concept will be<br>implemented for the city of Bandung, Indonesia as a case of study. The cost minimization of the raw water<br>supply system is carried out by using the superstructure approach. This optimization of the IWSS includes<br>raw water sources and recycled wastewater. For the proposed scenario, we build a mathematical model that<br>will be used for the optimization of IWSS. This optimization problem is solved using the CONNOPT3<br>method of GAMS software. The results of this study show that the proposed new IWSS results in less cost,<br>but higher transmitted water, than the existing system (non-IWSS) because, in the new system, the water<br>supply is allowed to flow into the existing Water Treatment Plan (WTP). Factors affecting the cost are length<br>and diameter of the raw water transmission pipeline, the elevation of water resources and water treatment<br>plants, the use of a coagulant, and the use of electricity in the transmission system and the water treatment<br>plant.<br><br></p>}, number={46}, journal={GEOMATE Journal}, author={E. Afiatun and S. Notodarmojo and A.J. Effendi and K.A. Sidarto}, year={2018}, month={Feb.}, pages={32–39} }