Across Tarrant County and the Barnett: pH Control, Lime Softening, and Flue Gas Desulfurization for Fort Worth Industry
Airframe finishing lines, produced water coming off the shale underneath the city, steam cycle chemistry at a nuclear station southwest of here, and a working lime plant thirty miles down the road. RDP Technologies has spent four decades on the equipment that prepares this reagent properly.
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Tarrant County does not run on the same industrial base as the eastern half of the metroplex. Airframe and rotorcraft manufacturing at genuine scale sits here, the productive core of the Barnett Shale lies directly beneath the county, a nuclear generating station operates southwest in Somervell County, and one of the state's lime plants runs down in Johnson County. That last detail is unusual in this series, because most markets buy this reagent from a considerable distance and Fort Worth does not. Municipal operations across the county are covered on our Fort Worth municipal treatment page.
pH Adjustment for Airframe Finishing Lines and Shale Produced Water
Aircraft structures demand surface treatment that almost nothing else does. Aluminum airframe components go through alkaline cleaning, acid etching, anodizing and conversion coating before they ever see primer, and every one of those steps produces rinse water carrying dissolved aluminum, chromium or cadmium at concentrations no permit accepts. Rotorcraft and engine work adds its own chemistry. The volume of finishing happening across this county is larger than the public would guess, and it discharges under TCEQ within EPA Region 6.
The Barnett contributes the second stream. Wells producing from underneath and around the county bring up water with dissolved solids at concentrations that make ordinary industrial effluent look mild, heavy in calcium, magnesium, barium and strontium. Treating that for reuse rather than trucking it to disposal has become the economically sensible route, and calcium chemistry does real work against exactly the scale forming constituents that would otherwise ruin everything downstream.
Lime suits both because one addition resolves more than one problem. The pH adjustment meets the discharge requirement, dissolved metals leave solution as hydroxides, and on produced water the same reagent addresses hardness that has to come out regardless. What the equipment has to cope with is that neither stream is steady, since a finishing line dumps to a production schedule and a water recycling operation takes whatever the field sends that day.
Neutralization Equipment
Lime Softening for Steam Cycle Makeup and North Texas Process Water
A generating station running a large steam cycle is unforgiving about feedwater whatever fuel or fission is driving it, and the nuclear station southwest of the county is the most demanding water user in this region by a wide margin. Hardness and silica in makeup water go straight to deposits on heat transfer surfaces and carryover into turbine stages, and the reservoirs feeding North Texas are not soft to begin with. Manufacturing plants across the county face a milder version of the same problem on cooling and process supply, in a region that has never had water to spare.
Lime softening takes the bulk of it out economically before anything more selective is asked to. The reagent raises pH, at which point calcium settles as a carbonate while the magnesium present converts to its hydroxide, and soda ash is introduced anywhere the noncarbonate portion has to come down as well. Operated at temperature, silica comes down with it, which is precisely why hot process units persist ahead of high pressure steam generation rather than being displaced.
All of that assumes a softener behaving identically day after day, which depends entirely on what arrives from upstream. Tekkem equipment weighs its lime and its water separately before the reaction begins, holds the batch until slaking has genuinely finished, and dilutes to working strength at the end. Where the stage behind the softener is an expensive one, that repeatability is the point.
How the Slaker Meters
Flue Gas Desulfurization and Reagent Feed for Regional Kilns and Combustion Sources
Sulfur control is the smallest of the three duties in this county specifically, and it is worth being direct about that. Generation serving Fort Worth is nuclear and gas rather than coal, and neither produces meaningful sulfur dioxide. The work within reach is elsewhere in the region, at the lignite fired units in central and east Texas that still run scrubbing capacity, and at the lime and cement operations along the limestone belt running south through Johnson County and beyond, where a kiln releases sulfur from the rock as well as the fuel.
Those installations divide the usual way. Recirculating wet designs pass the flue stream through an absorber carrying a lime or limestone suspension, and what the blowdown carries away is the sulfur locked into calcium form. Systems on the injection and semi dry side hold no recirculating inventory at all, dosing the reagent dry into the gas before it reaches the filter. Both convert reagent inconsistency directly into removal numbers that wander and sorbent that was purchased without doing measurable work.
A point worth making for anyone in this county specifically is that the preparation equipment is identical regardless of where the slurry goes. The same platform feeds an absorber, a neutralization basin or a softening train, which matters for a buyer whose actual duty is one of the other two but who wants the equipment proven across all of them.
Dry and Slurry Reagent Feed
Supplying Balance of Plant Equipment to a Nuclear Station
Selling equipment into a nuclear facility is not like selling into any other industrial site, and the first thing worth establishing on any inquiry is which side of a line the scope sits on. Safety related equipment carries federal quality assurance obligations that govern design control, procurement, material traceability, inspection and records, and a supplier either operates an audited program meeting those requirements or it does not. Balance of plant scope, which is where water treatment almost always sits, is a different and far more ordinary proposition.
Most chemical feed equipment at a nuclear station is genuinely balance of plant, supplied commercially like it would be anywhere else. What differs is the surrounding process rather than the product, because procurement runs through a formal qualification route, documentation expectations exceed what an industrial buyer would ask for, and site access takes longer to arrange than anyone plans for.
The useful thing a supplier can do is be precise about all of this rather than vague. We will say plainly what our scope covers, what documentation comes with it, and where a requirement falls outside what we supply commercially. Being clear early saves a procurement organization considerable time, and being imprecise about a nuclear QA question is a reliable way to lose the work and deserve to.
Quality Documentation
Installing and Servicing Equipment Inside a Controlled Access Facility
A defense manufacturing plant is a difficult place to schedule work. Badging takes weeks rather than days, some areas require escorts at all times, personnel restrictions apply to who may be on site at all, and photography for as ordinary a purpose as documenting an as built condition may simply not be permitted. None of this is unreasonable, but a project plan that treats a site visit as a casual matter will be wrong about its schedule from the outset.
The practical response is to shift work off the site. Equipment assembled, wired and functionally tested at the shop arrives needing far fewer hours inside the fence, and the hours it does need can be planned around access rather than discovered against it. Field scope that shrinks to setting, connecting and commissioning is far easier to fit into a controlled environment than one requiring weeks of fabrication in place.
Remote support matters for the same reason. Controls that can be examined and adjusted without a badge, documentation thorough enough for site personnel to act on directly, and a manufacturer who answers the phone knowledgeably all reduce how often anyone needs to physically be there. That is worth designing for at a secure facility, not improvising afterward.
Delivered InstallationsCleared Sites and Ordinary Ones
Describe the stream, the duty, and whatever access or documentation requirements come with the facility. We will tell you how we would approach it.
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