Water & Wastewater Treatment Equipment Serving San Antonio, TX
Precision lime slaking, biosolids stabilization, drying, storage, and truck loading systems engineered by RDP Technologies for San Antonio and South Texas municipal facilities.
Trusted Process Equipment for San Antonio Water & Wastewater Plants
For over 45 years, RDP Technologies has been building robust equipment, backed by dependable process performance, based upon a foundation of practical technologies that simply perform. San Antonio-area utilities count on RDP for clean, accurate, reliable systems that are simple and easy to maintain.
Biosolids Storage & Precision Truck Loading Systems
San Antonio Water System (SAWS) operates the Dos Rios, Leon Creek, and Salado Creek wastewater treatment plants, handling daily biosolids volumes that serve more than 1.8 million people across Bexar County and surrounding service areas. Reliable storage and loadout equipment is essential to keeping the broader hauling program running smoothly through extreme South Texas summer heat and occasional severe weather events. RDP Technologies engineers biosolids storage systems and precision truck loading systems that automate the full flow from dewatering through to the departing truck.
Moving floor technology built into live bottom bin storage keeps sticky sludge cake flowing reliably even during prolonged 100-plus-degree summer stretches, eliminating the bridging and rat-holing common to conventional steep-walled hoppers. Sludge cake truck loading runs automatically through the precision truck loading system, with most loads completed within minutes and held to within a couple hundred pounds of the operator’s target weight.
Three decades and approximately three hundred biosolids conveying equipment installations have refined a layout that keeps trucks clean, departure times predictable, and operator involvement minimal at the bay. Because the cycle runs without continuous attendance, San Antonio-area plant staff can redirect labor toward higher-value work elsewhere in the facility. For utilities running heavy weekday hauler rotations to agricultural land application sites across South Texas, that automation directly improves daily throughput and reduces overtime costs.
Biosolids Lime Stabilization & Pasteurization Solutions in San Antonio, TX
Texas has long supported substantial beneficial reuse of biosolids across agricultural and rangeland applications, with TCEQ providing regulatory oversight under federal EPA 503 standards and additional state requirements. South Texas’s expansive agricultural land base makes both Class A and Class B pathways viable for San Antonio-area utilities. RDP Technologies has been delivering EPA 503 compliant lime-based solutions since the federal rules were first established, supporting both Class A biosolids treatment and Class B biosolids stabilization at facilities across Texas.
The EnVessel Pasteurization biosolids pasteurization system is one of the most widely deployed Class A processes nationally, with more than 70 installations operating across the United States. EnVessel pairs lime addition with controlled supplemental heat instead of relying on heavy lime overdosing, keeping chemical demand reasonable while reliably hitting the time, temperature, and pH thresholds required for full pathogen kill.
Enhanced Pasteurization moves the cycle into a sealed sequencing batch reactor where lime drives pH above 12 and controlled heating completes disinfection. Both pathways serve as proven wastewater pathogen reduction equipment, supported by published case studies and decades of operational data from municipalities nationwide. For San Antonio-area facilities planning capital upgrades against TCEQ requirements and considering Class A pathways for broader reuse market access, these are regulator-recognized options with strong long-term track records.
Lime Slaking & Feed Systems for San Antonio Water Treatment Facilities
San Antonio Water System draws drinking water primarily from the Edwards Aquifer, supplemented by Carrizo and Trinity Aquifer wells and the Vista Ridge regional pipeline. This naturally hard groundwater requires substantial lime feed for softening, pH adjustment, and corrosion control across one of the largest municipal utilities in the South. RDP Technologies designs lime slaking and feed systems engineered for the precision and reliability that high-volume South Texas municipal operations require year-round.
The Tekkem family of lime slakers for water treatment applies load cell technology to combine a measured weight of quicklime with a measured weight of water, holding the slaking reaction within the proven 180°F to 190°F temperature window. This weight-based control approach enables precision lime dosing systems with slurry concentration adjustable from one percent up to thirty percent based on plant requirements.
The same Tekkem platform converts to operate as a hydrated lime feed system without any physical modifications, providing flexibility as lime market conditions shift across Texas and the Southwest. A continuous slurry delivery loop combined with pinch valve and flow meter dosing supports accurate feed at multiple application points within a facility. With only one moving part inside the reaction tank, maintenance demands stay infrequent and predictable for plants running around the clock through Texas’s intense summer demand peaks.
Custom Engineering & Process Equipment Support Serving San Antonio
Water and wastewater infrastructure across the San Antonio metro region has expanded continuously to support one of the country’s fastest-growing major cities, with treatment facilities engineered to operate through extreme summer heat, periodic flash flood events from the Balcones Escarpment, and the operational complexities of serving a dense, geographically spread metro region. RDP Technologies brings over 45 years of custom process equipment engineering experience to capital projects across Bexar, Comal, Guadalupe, and surrounding counties.
As a wastewater treatment equipment manufacturer that handles design, fabrication, and controls programming under one roof, we adapt to existing tankage, constrained site footprints, and operator workflows rather than forcing a generic package into a difficult location. Our intelligent control platforms integrate cleanly with SCADA systems and meet the detailed reporting expectations of Texas Commission on Environmental Quality, regional water authorities, and EPA Region 6 oversight.
We engage directly with municipal engineers, consulting firms, and plant operations staff from early scoping through commissioning and long-term technical support. Robust equipment, dependable process performance, and practical technologies that simply perform are the principles that have guided every project we deliver. San Antonio-area facilities benefit from working with a single accountable manufacturer that designs, builds, and stands behind the equipment for the long haul.
Biosolids Drying Systems for San Antonio Wastewater Plants
Cutting biosolids hauling tonnage and unlocking higher-value end products across Texas’s active agricultural and rangeland reuse markets makes biosolids drying systems a strategic capital investment for San Antonio-area wastewater plants. The RDP-Fenton wastewater sludge dryer operates on a repeating batch cycle that allows drying time to be adjusted to match the natural variation in sludge cake solids concentration coming off the dewatering line.
Batch sludge drying equipment handles those upstream variations cleanly, whereas continuous-flow dryers often struggle when feed quality shifts unexpectedly. Operators in the field have repeatedly noted how little daily attention the system requires once a stable recipe is dialed in.
The dried product comes out significantly reduced in volume and weight, lowering trucking costs and opening pathways into fertilizer, soil amendment, and energy recovery markets across Texas and the broader Southwest. Pairing the dryer with upstream RDP lime feed or storage equipment gives San Antonio wastewater plants a fully integrated biosolids handling line backed by a single manufacturer with consistent controls and ongoing support. Long service life and ease of operation were the design priorities from the start, and that focus shows up clearly in real-world performance data from installed sites across the country.
Ready to Discuss Your San Antonio Project?
Connect with the RDP Technologies team to scope lime feed, biosolids, or drying equipment for your San Antonio-area facility. We’re ready to help.