Optimal Plan for Equipping Residential Buildings to Accessories for Reducing Water Consumption (Case Study: Isfahan City)

Document Type : Original Article

Authors

1 Manager of water consumption and Non-Revenue water reduction department

2 Executive Manager of Isfahan Water and Waste Water Company

3 Deputy of operation of Isfahan Water and Wastewater Company

Abstract

Due to role of water consumption management as a main part in demand management, installing the retrofit accessories for the house fixtures, on the technical side of water consumption management, can have a significant impact on reducing urban water consumption. There is a question, however, on how Water and Wastewater Companies (WWC) can implement such approach and equip households with retrofit accessories. This article presents an optimal plan which includes the kind of accessories, target community and the way of implementation. The study hired the data for Isfahan city customers’ water consumption and prices in Iranian year 1396. According to the cost-benefit diagram for 6 packs of accessories, the optimal pack included 3 aerators, 1 shower head and 1 flush tank. Due to cost and impact of this pack on reduction of water consumption, the target community was selected from customers who have high consumptions over 2 times of consumption authorized pattern. Among 3 ways to implement this plan, distributing accessories by WWC and paying the cost by customers in installment showed shorter payback period and more feasibility in implementing the plan.

Keywords


 
ملاباشی، ا.، (1397)، "ارائه روش اندازه‎گیری اجزای مصرف آب خانگی (مطالعه موردی شهر اصفهان)"، دومین کنگره علوم و مهندسی آب و فاضلاب، اصفهان.
ملکی نسب، ا.، و قالیباف سرشوری، م.، (۱۳۸۶)، "بررسی کاهش مصرف آب خانگی به‎واسطه نصب تجهیزات و شیرآلات کم‎مصرف"، اولین همایش سازگاری با کمآبی، تهران.
ملکی نسب، ا.، ابریشم چی، ا. و قالیباف سرشوری، م.، (۱۳۸۶)، (ارزیابی صرفه‎جویی در مصرف آب خانگی به‎واسطه استفاده از قطعات کاهنده مصرف"، مجله آب و فاضلاب، 62، 2-11.
یونسلو، ص.، (1387)، "مدیریت تقاضای آب شهری"، همایش تأمین، تقاضا و مدیریت مصرف، تهران.
Cahill, R., Lund, J.R., DeOreo, B., and Medellin-Azuara, J., (2013), “Household water use and conservation models using Monte Carlo techniques”, Journal of Hydrology and Earth System Sciences, 17, 3957-3967.
DeOreo, W.B., and Mayer, P.W., (2013), Residential end uses of water study update, Water Research Foundation, Denver.
DeOreo, W.B., Mayer, P.W., Dziegielewski, B., and Kiefer, J.C., (2016), Residential end uses of water, Version 2: Executive Report, Water Research Foundation, Denver.
Heaney, J.P., DeOreo, W.B., and Mayer, P.W., Lander, p., Harpring, J., Stadjuhar, L., Countney, B., and Buhlig, L., (1998), “Natural of residential water use and effectiveness of conservation programs”, Basin Boulder Area Sustainability Information Network.
Mayer, P.W., DeOreo, W.B., Opitz, E.M., Kiefer, J.C., Davis, W.Y., Dziegielewski, B., and Nelson, J.O., (1999), Residential end use of water, AWWA Research Foundation and American Water Works Association, Denver.
Mayer, P.W., DeOreo, W.B., Towler, E., and Lewis, D.M., (2003), Residential indoor water conservation study, East Bay Municipal Utility District and The United States Environmental Protection Agency, Colorado.
Mayer, P.W., DeOreo, W.B., Towler, E.,Martien, L., and Lewis, D.M., (2004), Tampa Water Department residential water conservation study, East Bay Municipal Utility District and The United States Environmental Protection Agency, Colorado.
Roberts, P., (2005), Yarra Valley Water 2004 residential end use measurement study, Yarra Valley Water.
Tsai, Y., Cohen, S., and Vogel, R.M., (2011), “The impact of water conservation strategies on water use: Four studies”, Journal of the American Water Resources Association, 47(4), 687-701.