WASTEWATER MEASUREMENT RESOURCES

• Bulk Emergency Chlorine Vapor Scrubber System Restored For Oklahoma City

  As a bulk emergency chlorine vapor scrubber system approached the end of its anticipated 20-year useful life, the city engaged Integrity Municipal Systems, LLC (IMS) inspected the equipment and proposed a system refurbishment plan that would ensure proper system performance and safe storage of the 30,000 gallons of corrosive caustic soda contained within it.

• Increasing Data Quality To Leverage Spatial Analytics

  The Prince William County Service Authority supplies clean water and superior service to a large and ever-growing metropolitan population. The Service Authority owns and maintains more than 2,300 miles of pipeline distributing up to 56 million gallons of water a day and treating 43 million gallons of wastewater a day for approximately 350,000 people. 

• 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

• Intelligent Power Starts With Accurate, Actionable Data

  Internet of Things connectivity for circuit protection lays the foundation for system-level intelligence.

• Los Angeles Department Of Water And Power Uses GIS To Improve Water Incident Management

  While utilities use sophisticated systems to supply clean water as well as collect and treat wastewater, the effort to manage incidents and outages leaves room for improvement. Water utilities often rely on manual processes to handle customer reports of leaks, loss-of-service or quality issues.

• Key CSOs Eliminated By City Of Houston Within Tight Timeframe

  The City of Houston Public Works engaged Optimatics, Tetra Tech, and WCS Engineering to develop solutions to eliminate CSOs within a section of their sewer network. This optimization effort focused on developing solutions to eliminate CSOs in the catchment area upstream of the Eddington lift station, located to the southwest of Houston’s downtown area. As part of previous work targeting these CSOs, the City had designed a capacity upgrade for the Eddington lift station.

• ABB Technology Further Strengthens Singapore's Water Security

  Singapore is using desalination as part of the solution to their water supply issue in order to provide enough clean drinking water for its ever-growing population of 5.5 million.

• SWAN Corner: Optimizing Data Intelligence Helps Orlando Protect Its Citizens During Heavy Rain Events

  The City of Orlando Streets and Stormwater Division is responsible for maintaining and improving drainage facilities to prevent flooding and ensure all receiving water bodies meet state and federal water quality standards. They oversee upwards of 100 lakes within the City and approximately 147 drainage wells with 70 monitoring stations for lakes and waterways, and have 23 rainfall stations collecting data by telemetry over a cellular network. The Streets and Stormwater Division keeps two million people safe from flooding during heavy summer rainfalls and periodic tropical events. 

• Odor Patrol: Study Identifies Odor Culprits At San Fran Wastewater Facility

  The Southeast Water Pollution Control Plant (SEP) is San Francisco’s largest and oldest wastewater facility. The plant is located in the midst of a mixed industrial, commercial, and residential area, with many of the plant neighbors directly across the street from the plant fence line. Odor emissions have historically been an issue.

• Aeration Basin Air Flow Monitoring At A Stockholm Wastewater Plant

  At a wastewater treatment plant in Stockholm, Sweden, each aeration basin has several diffuser systems. Each diffuser system requires individual air flow monitoring and independent control. The air flow pipes leading to the diffusers typically do not have much straight run of pipe. This makes accurate measurement of the air flow more difficult. In addition, the air flow coming from the compressors is inconsistent