WASTEWATER MEASUREMENT RESOURCES

• Dripping Springs Water Supply Corp. Installs A VTScada System

  Serving a suburb of the Greater Austin Metropolitan Area, Dripping Springs Water Supply Corporation (DSWSC) recently decided to replace their Wonderware and WIN-911 system with VTScada, with the help of Austin area integrator, Central Texas Water Maintenance (CTWM).

• Utilizing Optimization, Palmira, Colombia Reduces Average Operational Pressures In Water System By 30%

  Aguas de Occidente utilized Optimizer to undertake a pressure management study for the water distribution system in the city of Palmira, Colombia. This optimization effort focused on developing solutions to improve service pressures in deficient parts of the city’s network, while simultaneously keeping average pressures down to minimize leakage losses and reduce non revenue water usage.

• Why A Little Knowledge About Sensors Can Be A Dangerous Thing

  Every day our technical support people answer questions on the selection of sensors for pH, ORP, conductivity, dissolved oxygen and turbidity. No issue generates more confusion than cell constants for conductivity sensors. The vast majority of returns we process are for conductivity sensors that were ordered with the wrong cell constant. It turns out that cell constants are something that we all read but that most of us don’t really understand. Pick the wrong cell constant for a probe and your analyzer will happily give you numbers to 3 significant digits. The only problem is those numbers are wrong. By Mark Spencer, President, Water Analytics

• Precise Biogas Flow Measurement

  As oil prices remain high, we are in the midst of a nation-wide initiative to seek renewable sources of energy to increase energy efficiency and energy security. Renewable energy accounted for 13.2% of the domestically produced electricity in 2012. Among the sources of renewable energy is the production of biogas from landfill gas (LFG) or digester gas. By Scott Rouse, VP Product Management, Sierra Instruments

• 3 Public Works Professionals Tap Technology To Address Infrastructure Challenges

  The digital revolution has reached our utilities, but not everyone is taking advantage of how it can, for example, make water and wastewater cleaner, healthier, and more efficient. National news media seemingly report daily on U.S. infrastructure, but they rarely get down in the trenches with the public works professionals who are accomplishing so much. Three of them, who are using the Internet of Things (IoT) to better manage critical assets, tell their stories here.

• What Benefits Do Variable Frequency Drives Offer For Pump Control?

  People working with water infrastructure or handling other industrial needs may choose variable frequency drives (VFDs) for better pump control options. This approach relies on a component that alters the frequency and voltage received by the pump motor, thereby changing its speed and torque. Here are some of the benefits of VFDs.

• What Can 2^nd Generation ATP Do For An Operator Or Field Technician?

  It’s important to start with the fact that this is not a regulatory test. This technology won’t replace any required compliance tests and the results are not reportable, which is actually a great benefit to our users. While regulatory testing is important, compliant does not necessarily mean clean.

• OpenFlows WaterGEMS Saves Sabesp BRL 365,000 Per Month On Diadema’s Water Treated Volume Costs

  Within the São Paulo metropolitan area, the city of Diadema in Brazil comprises 400,000 residents. Supplying water to 28.8 million people and treating and collecting sewage for 23.2 million people, Sabesp – Companhia de Saneamento Básico do Estado de São Paulo provides water and collects and treats sewage for 366 cities in the state of São Paulo, Brazil.

• Water Service Provider In Melbourne Finds Success In Transparent Asset Management Optimization For Mains Renewal Program

  City West Water teamed with WSP and Optimatics to determine a least cost and least-risk renewal program for ageing distribution mains supplying inner Melbourne, Australia. The optimization of the inner Melbourne distribution mains was carried out to determine an optimized pipe renewal strategy that minimizes pipe renewal costs and future risk (including probability and consequence of asset failures) while ensuring service performance standards are maintained.

• Color, Turbidity And Philosophy

  When we humans look at objects we describe them in terms of color. We say that an apple is red or a leaf is green. To us color is an attribute just as surely as the mass or dimensions of an object. But the fact is that color is a pure human construct. Take away the human and it does not exist.