Municipal Water and Wastewater
Municipal wastewater applications are notorious for the difficult—sometimes bizarre—solids that make it into the flow system. These applications pose several difficulties including the presence of non-biodegradable solid waste. You’re open to the public, so you’re never sure what you’re going to encounter, from underwear to Barbie dolls! Diapers and other plastic-reinforced cloth are an especially tough non-biodegradable solid.
Don’t wait until solids build up and clog your pump. Instead, avoid downtime by using these five ways to prevent submersible pump failure:1. Use a Shredder Pump to Cut Tough Solids
Submersible solids-handling pumps are each designed for a specific function. Using the correct pump for your given application helps to prevent pump failure, unnecessary maintenance, and downtime.
Municipal wastewater solids can be very hard to break down, so submersible wastewater pumps need to be more robust.
The municipal bus service for a large Southwestern city covers some 1,200 square miles of territory, operating a fleet of 450 buses and 100 vans that carry an average of 255,000 passengers a day. Every night between 11 p.m. and 5 a.m., the vehicles head to a “bus barn,” or maintenance depot, where they are washed, cleaned, refueled and, if necessary, repaired for the next day’s routes. It takes about two minutes to wash each bus, inside and out.The Challenge
For more than year beginning in October 2010, the Southwest endured one of the most severe droughts in recorded United States history. Through the first ten months of 2011, Texas, for example, received 15 inches less rainfall than average, lowering streams and reservoirs to some 50 percent of their capacities and causing devastating losses to farmers and ranchers.
Goforth Williamson Inc. provides pumps, pump repair, and field services to a variety of industrial companies and municipalities across the Southern United States. Goforth Williamson Inc., who has positive working relationships with several water and wastewater treatment plants, was contacted in 2014 by a major city’s water treatment plant; one that provides drinking water to over 4 million people in a metropolitan area. When one of the clarifier sump pumps at the water treatment plant wore out, Goforth Williamson was asked to recommend a replacement pump.The Challenge
The water treatment plant extracts fresh water from a nearby river, pumping a significant amount of sand and silt in with the fresh water. The water treatment plant must separate the water from the sand and silt in a clarifier.