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Used water treatment equipment for sale – cost-effective systems for process purification and wastewater management

IPP stocks used, secondhand, and surplus water treatment equipment for industrial and municipal applications

Treat smarter with ready-to-ship water treatment systems from IPP’s global inventory

Featured Water Treatment

Water Treatment System Pentair 48ES

Type: Water Treatment

Manufacturer: Pentair

Model: 48ES

Condition: Used

Material: Carbon Steel

Water Treatment Type: Water Softener/Water Conditioning

Pressure: 8.6 bar (125 psi)

Water Softner

Controls: Yes. System: Yes.

Water Treatment Stilmas MS3005HPS Stainless Steel 316

Type: Water Treatment

Manufacturer: Stilmas

Model: MS3005HPS

Condition: Used

Material: Stainless Steel 316

Water Treatment Type: Multiple effect distillation, Water for Injection

Flow Rate: 6,600 L/h (29 GPM)

multi-effect WFI water distillation unit. All sanitary construction Unit has 5 distillation columns, all national board rated, 145 psi @ 14 to 362 degrees f in the shell; 145 psi @ 14 to 362 degrees f in the tubes. circulation pumps

Temperature: 183.4 °C (362.2 °F). Pressure: 10 bar (145 psi). Controls: Yes. Multi Stage: Yes.

Stainless Steel 316L Willand UV Systems Ltd SP-23/25/10178 UV Ozone Destruction Unit - Water Treatment

Type: Water Treatment

Manufacturer: Willand UV Systems Ltd

Model: SP-23/25/10178

Condition: Used

Material: Stainless Steel 316L

Water Treatment Type: UV Ozone lamp destruction/disinfection

Flow Rate: 15,000 L/h (66 GPM)

UV Ozone lamp destruction/disinfection unit contained in a pressurized enclosure/cabinet,
UV disinfectant chamber utilises a high output, medium pressure mercury type ultraviolet lamp enclosed within a high quality quartz liner, housed in a 316L stainless steel disinfectant chamber
designed to disinfect the peak flow of 15 m3/hr of purified water
design UV dose 100 mJ/cm2,
half flow UV dose 160 mJ/cm2, full UV dose 154 mJ/cm2,
enclosure rating Zone 1, Gas IIB, temp T4, Ex Eex p II T4 (954 Wmax) PTB Nr Ex81/1106, enclosure type SCC, serial #20684, min pressure 1.5 mbarg,
468 liter internal free volume,
75 ltr/min purge flow rate (min),
purge time 32 m-s (min),
enclosure dimensions: 600mm long x 600mm wide x 1540mm high (inc mini purge unit),
top mounted mini purge unit for continuous circulation or dilution using air or inert gas,

Pressure: 4.1 bar (59.5 psi). Controls: Yes.

US Filter Water Treatment

Type: Water Treatment

Manufacturer: US Filter

Condition: Used

Water Treatment Type: Reverse Osmosis

Flow Rate: 4,750 L/h (21 GPM)

Booster Pump skid designed to increase water flow , temperature, and pressure for RO system, and CID system in the following steps of the process. With one approx. 10 sq ft, ITT Industrial plate heat exchanger model P7A, with 316 SS SS plates rated for 150 psi at 302 degrees F on both the process or service side One, 5 HP, 316 SS centrifugal pump rated for 60 psi one 5 micron filter in a 316 SS electropolished housing manufactured by Stainless Fluid systems 0.8" OD x 41" high, with 1.5" inlets and outlets The filter vessel is rated for 150 psi at 300 degrees F. UV lamp, rated for 254 NM, in a 316 SS polished housing With digital flow controls, and a US filter power control panel.

Temperature: 148.9 °C (300 °F). Pressure: 10.3 bar (150 psi). Controls: Yes. Control Details: Digital flow controls, US filter power control panel. System: Yes.

Used water treatment equipment is critical to plant performance, environmental compliance, and process integrity. Whether you’re handling influent filtration, process water recovery, or wastewater discharge, IPP offers surplus and secondhand water treatment systems that are professionally inspected and available immediately from 20 global plant sites. With more than 47 years of industry leadership, IPP is the world’s largest supplier of used process plants and equipment, with 15,000+ systems ready to ship.

IPP’s inventory includes clarifiers, sand filters, carbon beds, reverse osmosis systems, deionizers, neutralization systems, sludge handling units, and chemical dosing skids. Top manufacturers include Evoqua, USFilter, Pall, Siemens, and Veolia.

Industries and applications

In chemical and petrochemical, for process water conditioning and waste neutralization
In food and beverage, for filtration, sanitation, and product rinse
In pharmaceutical, for WFI generation, ultrapure water, and rinse cycles
In municipal and utility, for public water systems and wastewater treatment
In metals and mining, for effluent treatment and solids separation

Processes and water types handled

Process cooling and boiler feedwater
Greywater reuse and recovery
Sludge dewatering and chemical neutralization
Wastewater treatment and discharge compliance
RO, UF, and DI water systems

Common materials of construction

Stainless steel for sanitary and corrosion-resistant applications
Fiberglass-reinforced plastic (FRP) for chemical resistance
Polyethylene and PVC for cost-effective media tanks
Rubber-lined steel for acidic and abrasive slurries

Key features of used water treatment equipment

Skid-mounted filtration and dosing systems
Plug-and-play integration with plant utilities
Systems with automated controls and flow monitoring
ASME- and NSF-rated tanks and vessels
Reverse osmosis and deionization packages

Learn more about how industrial water treatment supports compliance and cost control via Water Technology.

Find your water treatment equipment at IPP

Browse IPP inventory or contact IPP to speak with a water treatment equipment expert. From solids separation to reverse osmosis, IPP helps you save time and money with tested systems in stock and ready to ship.
As confirmed in this article from FineEngineeringMag, IPP is the world’s largest seller of used process plants and equipment, trusted by more than 160,000 customers globally.

Water Treatment FAQ

Have questions about Water Treatment or our services? Learn more about our products and why customers choose IPP.

IPP carries sand filters, carbon beds, RO systems, neutralization tanks, deionizers, clarifiers, and more.

Yes. IPP offers sanitary-grade systems and ultrapure water equipment for validated processing environments.

Absolutely. IPP stocks plug-and-play water treatment skids for quick installation and integration.

You save time, reduce capital costs, and access proven equipment that meets process and regulatory needs.

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