Pumps are everywhere in agriculture, essential both for irrigation and for heating, ventilation and cooling (HVAC). But water needs change, and irrigation systems don’t always require a constant flow rate or constant pressure. Variable frequency drives (VFDs) are electric controllers that vary the speed of the pump, allowing the pump to respond smoothly and efficiently to fluctuations in demand.

Shanghai Xinlun Paper was upgrading its pulping and paper-making process. As this was taking place, new regulations came into effect that required the mill to invest in secondary wastewater treatment so it could meet stringent effluent limits of 100 mg/l chemical oxygen demand (COD), 30 mg/l biochemical oxygen demand (BOD), and 200 mg/l total suspended solids (TSS).

BALTEN needed to modernize its outdated infrastructure and software platforms, so it could optimize its irrigation water transportation system and improve the overall performance of its irrigation water service.

Bell & Gossett manufacturer’s representative, Hydro-Flo, in Brookfield, Wisconsin, presented a solution to the VA’s pump room challenge: the VSX vertical split case pump.

By implementing a proactive management program, utilities can virtually eliminate the risk of failure within their PCCP inventory. Even utilities that have not experienced a large-diameter PCCP failure, can realize significant capital program savings by managing these assets in place of replacement.

While evaluating wire breaks are an important part of PCCP management, it is important to acknowledge additional factors beyond wire breaks. By acknowledging additional condition factors, limitations of wire break assessment, and considering other rehabilitation approaches, there may be a more sustainable PCCP management approach.

England’s Northumbrian Water Ltd (NWL) serves roughly 2.5 million people with water and sewerage services. To better assess its predicted results they conducted a project to measure how much the installation of N-pumps had reduced their costs.

Bucknell University implemented a new pump system with variable frequency drive controls to monitor flow and response and increase the output of the pump to keep up with the fluctuating demands of the three different buildings.

The Bilbao Bizkaia Water Consortium (CABB) is the public utility responsible for managing the main drinking water and wastewater network in the province of Bizkaia, serving over one million residents through a range of water supply pipelines, sewer networks, and wastewater treatment plants across 97 municipalities.

Clarksville, Virginia is a community home to many industries, such as candy manufacturer Russel-Stover. When the aerated lagoon – used to pre-treat wastewater – became overloaded, the town turned to Evoqua for solutions. While the effluent wastewater is hardly hazardous to your health, it is a very common problem for candy manufacturers as it contains a very high proportion of Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS).