The Cibolo Creek Municipal Authority, created in 1971, provides regional wastewater services for the area northeast of San Antonio, Texas, and serves the communities of Schertz, Cibolo, Selma, Randolph Air Force Base and portions of surrounding towns. The overall system includes the gravity interceptor system, lift stations, force mains, a water reclamation plant, and a reclaimed water distribution system. In general, the gravity system follows the region’s natural topography and drainage basins flowing to the water reclamation plant, which is rated for an annual average flow of 6 mgd.

For many years, a water reclamation plant in Schertz successfully used six double disc pumps for their primary sludge and scum applications. At their last expansion project, they added high-speed macerators in line ahead of all the double disc pumps to enhance their process and grind rags and debris in the sludge. Since the installation of the macerators, they have suffered severe problems with plugging of the pump suction lines that led to frequent pump rebuilds.

The facility was in dire need of a solution. After several years of frustration in dealing with this problem, they turned to the 10K Muffin Monster from JWC Environmental. “I always heard good things about the Muffin Monster brand,” says the plant’s maintenance superintendent.

With their previous macerators, the plant had to interrupt the system two to three times a day to cut through rags, hair and debris. To add to the problems the macerator blades would wear down quickly, requiring constant replacement. With two pumps on each system, the cleanup and pump rebuilding was time consuming. The lack of durability and strength of the macerators forced the staff to do a complete pump rebuild every two years. This had become the norm at this facility for years.

The 10K Muffin Monster now plays an integral role in this water reclamation plant’s system by grinding the primary sludge and debris that is pumped to the digesters. Its efficiency has proven so great the plant no longer keeps all six pumps running. They have installed three Inline 10K Muffin Monsters and are now grinding more reliably with less energy. There’s no need to rebuild or stop sludge pumping to manually cut away the debris.

The maintenance superintendent says he would definitely recommend the 10K Muffin Monster: “There are multiple products on the market but the 10K Muffin Monster fit our needs.” The plant’s ultimate goal was to make their treatment plant more efficient, eliminate rebuilds and cut down on man-hours. The In-Line 10K Muffin Monster has far exceeded their expectations.

The Inline 10K Muffin Monster is a compact sewage grinder, tough on solids in sludge applications. It fits into areas with limited space requirements while still providing the necessary power for downstream protection. This simplified design makes it the best cost solution to your sludge pumping problems. The 10K Muffin Monster also saves on electrical costs by using half the energy needed for high-speed macerators. It is designed for 4-inch and 6-inch pipelines and uses dual 8-inch cutter stacks to shred solids, thus eliminating rags and other debris from blocking sludge pumps, heat exchangers, centrifuges and other equipment. The Inline 10K Muffin Monster uses a 2 or 3 hp gearmotor and has a maximum flow up to 55 gpm. 


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