HENDERSON WATER UTILITY – SOUTH WASTEWATER TREATMENT PLANT EXPANSION
Matrix provided the controls engineering for a wastewater treatment plant expansion. The expansion consisted of four new PLC control cabinets tied together on an Ethernet network. These PLC’s monitored and controlled new equipment in four different sections of the plant. The entire plant is monitored by a PC based SCADA system developed by Matrix. We also provided startup and checkout services as well as construction management.
LIFT STATION – HUSBANDS STREET ELECTRICAL RENOVATION
Our engineers provided electrical and controls engineering necessary to change out the existing electrical service, motor control center, and control system. We provided engineering and equipment necessary to provide temporary power and controls during construction to minimize downtime. Matrix also provided all PLC programming as well as construction management and startup services. In addition to the controls, Matrix also re-designed the entry of waste into the station and added a Muffin Monster.
BOILER WATER SOFTENER SYSTEM
Matrix provided the civil, structural, mechanical, electrical and controls engineering for a water softener system supplying the boilers at the Nashville, Tennessee facility. The system consisted of a packaged softener system and two brine tanks. Special considerations were made in the concrete design due to the strong salt water issues. PVC piping was used along with heat tracing for freeze protection. Matrix also integrated the controls between the packaged softener system and the brine pumping system.
DEWATERING BUILDING VENTILATION
The JSA asked us to provide engineering assistance to eliminate a problem with hydrogen sulfide gas in their dewatering building. The issue was caused by in-adequate ventilation resulting in noxious fumes and corrosion on the building. Matrix replaced their existing ventilation system and provided hoods specifically designed for each piece of equipment in the building. The hoods were designed to adequately ventilate yet allow room for cleaning and maintaining of the dewatering equipment. The Director of the JSA informed us that our design helped the interior smell like “pristine mountain air” compared to the old system.
DEPARTMENT OF ENERGY
SCRAP METAL BASIN WATER TREATMENT FACILITY
Matrix provided the mechanical, instrumentation and controls engineering necessary for a semi-automated water treatment of a 4 million gallon sediment basin for the scrap metal yards at the USEC Uranium Enrichment Facility. The treatment facility monitored turbidity and pH. The facility consisted of (2) bank mounted 1000 gpm pumps for either pumping to the outfall or recirculating back to the basin. These pumps also utilized an eductor system to treat high or low pH in the basin. Also included were (2) pumps with a flocculent additive system for supplying 150 gpm streams at 50 psi to (2) Rain Guns for dropping out solids in the basin water. Freeze protection and drain-ability were also addressed throughout the design.