Water & Wastewater Treatment Equipment Serving Columbus, OH
Precision lime feed, biosolids stabilization, drying, storage, and truck loading systems engineered by RDP Technologies for Columbus-area municipal facilities.
Trusted Process Equipment for Columbus Water & Wastewater Plants
For over 45 years, RDP Technologies has built robust equipment backed by dependable process performance and a foundation of practical technologies that simply perform. Utilities across Central Ohio rely on RDP for clean, accurate systems that stay easy to operate and maintain over a long service life.
Biosolids Lime Stabilization & Pasteurization Solutions in Columbus, OH
Columbus runs one of the more ambitious beneficial-reuse programs in the Midwest, with the Southerly Wastewater Treatment Plant operating a composting operation that turns treated solids into a marketable Class A product. RDP Technologies has delivered lime-based stabilization equipment since the EPA 503 framework first took shape, and our biosolids lime stabilization line gives Franklin County utilities a path to Class B biosolids stabilization or, where the endpoint calls for it, full Class A biosolids treatment, set by how they plan to reuse or dispose of the material.
The EnVessel Pasteurization biosolids pasteurization system is among the most widely installed Class A processes in the United States, with more than 70 systems in operation. Rather than relying on heavy lime overdosing, EnVessel combines lime with added heat to hit the time, temperature, and pH targets that full pathogen kill requires, which keeps chemical consumption in check for plants treating high daily volumes.
Where a facility needs a sealed process, Enhanced Pasteurization carries the cycle into a closed sequencing batch reactor, lifting pH past 12 while controlled heat finishes disinfection. Both approaches function as proven wastewater pathogen reduction equipment, documented through case studies and years of municipal operating data. For Columbus-area plants weighing capital upgrades against existing composting capacity, these are pathways that Ohio EPA and EPA Region 5 already recognize.
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Biosolids Drying Systems for Columbus Wastewater Plants
With biosolids from Jackson Pike and Southerly moving to farmland, composting, and reuse markets across the region, hauling weight has a direct line to operating cost, which is what makes biosolids drying systems a practical investment for Central Ohio plants. The RDP-Fenton wastewater sludge dryer works on a repeating batch cycle, so drying time can be tuned to the swings in cake solids that come off any dewatering line.
Batch sludge drying equipment absorbs that variability without trouble, where continuous-flow dryers tend to falter when upstream output shifts. Operators consistently note how little hands-on attention the unit needs once a stable recipe is set, freeing plant staff for other work.
The finished product leaves the dryer sharply reduced in volume and weight, lowering trucking costs while opening outlets in soil-amendment, fertilizer, and energy-recovery markets across Ohio and the wider Midwest. Tied into upstream RDP lime feed or storage equipment, the dryer rounds out a single-source biosolids handling line with consistent controls and long-term support behind it. Ease of operation and long service life shaped the original design, and that shows in performance data from installed sites nationwide.
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Lime Slaking & Feed Systems for Columbus Water Treatment Facilities
Columbus draws its drinking water from the Scioto River, Big Walnut Creek, and a network of reservoirs that includes Hoover, O'Shaughnessy, and Griggs, treating it at the Hap Cremean, Dublin Road, and Parsons Avenue plants. Source water blended from rivers and reservoirs shifts in hardness and alkalinity through the year, and RDP builds the lime slaking and lime feed systems these operations depend on, engineered for the precision and uptime a plant of this size needs day after day.
The Tekkem line of lime slakers for water treatment relies on load-cell weighing, pairing a measured charge of quicklime with a measured charge of water and holding the reaction in the 180 to 190 degree range where slaking chemistry performs best. That weight-based method is what makes precision lime dosing systems workable, with slurry strength adjustable across a wide range to suit each plant's needs.
The same Tekkem platform doubles as a hydrated lime feed system with no physical changes, giving Columbus utilities flexibility as lime supply and pricing move. A continuous slurry loop, metered through pinch valves and flow meters, delivers steady dosing to several feed points across a plant. With a single moving part inside the reaction tank, upkeep stays low and predictable for facilities running around the clock.
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Custom Engineering & Process Equipment Support Serving Columbus
Treatment infrastructure across the Columbus metro reflects generations of construction and expansion, much of it added in stages as Central Ohio's population kept climbing. RDP Technologies brings more than 45 years of custom process equipment engineering to projects run by the city's Division of Sewerage and Drainage and the surrounding Franklin County service area.
As a wastewater treatment equipment manufacturer that keeps engineering, fabrication, and controls work inside its own shop, RDP fits equipment to existing tankage, tight footprints, and the routines operators already follow instead of forcing in a stock package. Our control platforms integrate with SCADA and meet the reporting detail that Ohio EPA and EPA Region 5 oversight calls for.
RDP works hand in hand with municipal engineers, consulting firms, and plant staff from first scoping through startup and well past commissioning. The same principles, robust equipment, dependable performance, and technologies that simply perform, have guided every project since the company began. Whether the job is a single feed-system retrofit or a full biosolids line, Columbus clients deal with one accountable manufacturer for the long run.
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Biosolids Storage & Precision Truck Loading Systems
High-volume plants like Jackson Pike and Southerly generate biosolids continuously, so storage and loadout equipment has to keep pace to hold the hauling program on schedule across Central Ohio's full weather range. RDP builds biosolids storage systems plus precision truck loading systems that move material automatically, dewatering line to departing truck, with no operator standing at the bay.
Moving-floor technology inside live bottom bin storage keeps sticky cake flowing even in cold-weather operation, sidestepping the bridging and rat-holing that plague steep-walled hoppers. Run by the precision truck loading system, sludge cake truck loading completes in minutes and keeps each load within a few hundred pounds of the target weight.
Decades of biosolids conveying equipment installations have shaped a loadout layout that keeps trucks clean, departures predictable, and operator involvement minimal. Because loading runs unattended, Columbus plant crews can shift labor to higher-value tasks elsewhere on site. For utilities running heavy weekday hauler rotations, that reliability cuts scheduling friction and overtime alike.
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Ready to Discuss Your Columbus Project?
Connect with the RDP Technologies team to scope lime feed, biosolids, or drying equipment for your Columbus-area facility. We're ready to help.