Enorsul Saneamento Optimizes Olinda’s Brazil Water Distribution System, Reducing Water Losses
2Pages

{{requestButtons}}

Catalog excerpts

Enorsul Saneamento Optimizes Olinda’s Brazil Water Distribution System, Reducing Water Losses - 1

CASE STUDY Project Summary Organization: Enorsul - Sanitation Services Solution: Water Networks Location: Olinda, Pernambuco, Brazil Project Objective: • Reduce water loss in the Olinda water distribution network. • Create Metering and Control Zones (MCZs) to eliminate water distribution rotation. • Extend capacity to reach a wider area of influence. Products used: WaterCAD®, WaterGEMS® Enorsul Saneamento Optimizes Olinda's Brazil Water Distribution System, Reducing Water Losses Bentley's WaterGEMS Helps Identify and Prioritize Solutions, Including Implementing 43 Metering and Control Zones Fast Facts • Hydraulic modeling provided the diagnostics required to make decisions about how to optimize operations, reduce water losses, and meet present and future demand. • As a result of this project, hydraulic modeling was adopted as a fundamental means for managing the public water supply. • Water network optimization will help overcome water scarcity and achieve water security in the region. Enorsul completed the study and issued reports within 10 months instead of the allotted 18 months using Bentley's water modeling software. The BRL 130 million water supply optimization program will achieve a BRL 19.8 million per year return on investment. The water distribution system optimization program costs will be repaid within six-and-a-half years. Water Security for Olinda Sustainable water projects in Pernambuco, Brazil, help transition municipal water supplies from a state of water scarcity to a state of water security. The state water utility, Companhia Pernambucana de Saneamento S.A. (Compesa), supplies water to the historic city of Olinda, where spring-fed reservoirs and deep wells have been impacted by drought. With the water network losing 56 percent of distributed water, the utility needed to reduce water losses and get more water to underserved zones. Compesa retained Enorsul Saneamento for a BRL 134 million project to optimize the water distribution system and reduce water losses by 56 percent. Enorsul modeled the system with WaterGEMS to identify and prioritize solutions, including implementation of 43 metering and control zones (MCZs). Hydraulic modeling shortened the study period from 18 to 10 months, allowing improvements to begin sooner than anticipated. Interventions totaling BRL 130 million were expected to payoff within six and a half years and eliminate water rationing within two years. Water Losses Cause Shortages Founded by Portugal in the 16th century, Olinda is one of the best-preserved colonial cities in Brazil. Its historic downtown is a UNESCO World Heritage Site, and roughly one-third of the city is demarcated as a historic area. Brazil calls the city the Capital of Culture, home of an annual Carnival celebration that rivals festivities in Rio de Janeiro. Olinda's age is written in its waterworks, where more than half of the city's treated water is being lost to leakages and erratic pressures range from 5 to 70 meters H2O. Reservoirs and tube wells supply Olinda's water network, and they were affected by a drought that plagued northeastern Brazil in 2012. The drought was the worst the region had seen in nearly 40 years. Water shortages in the northeast zone of the city necessitated a water distribution rotation scheme that supplied water to seven of the 28 supply areas once every four days. Average daily supply periods lasted 11 hours in cycles of 72 hours. At least seven neighborhoods were supplied via direct shunts from pipelines, which cut the areas off from the distribution grid. If all of the city's treated water made it to the tap, there would be a 24/7 supply for the entire population. Compesa awarded a 60-month contract to Enorsul, a technology-driven sanitation solutions company, to design and implement works to optimize operation of the water supply network, identify and reduce water loss, and eliminate the water distribution rotation. Enorsul was retained to address reservoir capacity, pipeline metering, supply pressure, and sectorization. The scope of work covered about 426 kilometers of the network, with 5,598 points of consumption supplying about 230,000 people, or roughly 70 percent of the city. The WaterGEMS hydraulic model replicated distribution schemes in varying zones and assessed various what-if simulations Hydraulic Model Mirrors Reality Olinda's water supply system comprised 8,205 pipes, as well as storage tanks, deep tubular wells, booster pumps, flow rate meters, and other components. Enorsul used WaterGEMS to create a hydraulic model of the system and run what-if scenarios to identify potential solutions and analyze the resulting hydraulic behavior. The project team compiled metering records, conducted field surveys, and collected documents, plans, and drawings to gain a better understanding of the system and network topology. The available CAD data was updated, and the physical characteristics of the system

Open the catalog to page 1
Enorsul Saneamento Optimizes Olinda’s Brazil Water Distribution System, Reducing Water Losses - 2

"Using WaterGEMS and WaterCAD, we could evaluate the improvement proposals for the Olinda supply system. These improvements will benefit over 250,000 inhabitants, workers, and visitors in the region. Using these applications formed the basis for a meticulous water loss reduction strategy, which will result in the recovery of treated water on the order of230 liters per second. Implementation of this capability can help improve human living conditions, and Bentley is a key contributor to this process." — Vanessa Finamore Miranda, Environmental and Sanitary Engineer, Enorsul - Sanitation...

Open the catalog to page 2

All Bentley Systems Europe B.V. catalogs and technical brochures

  1. ConstructSim

    2 Pages

  2. promis•e

    2 Pages

  3. STAAD.Pro

    2 Pages

Archived catalogs

  1. Bentley MAP

    2 Pages