Industry focus
Automotive water treatment: paint-quality water in, clean water out
Prosep supplies high-purity water for surface finishing and paint application, and robust treatment for the oily wastewater those processes generate — protecting production quality and uptime.
In vehicle manufacturing, water quality is visible on the product. The surface finishing and paint processes that give a vehicle body its appearance and corrosion protection depend on water of a controlled quality; contamination or hardness in that water shows up as a defect on a panel.
At the other end of the plant, the wastewater from those same processes is oily, loaded and subject to a discharge limit. Both the quality going in and the cleanliness coming out are production issues, because both can stop the line or fail an inspection. Prosep supplies the high-purity water and the robust effluent treatment those processes need.
In and out
Paint-quality water in, compliant water out
The high-purity water that protects the finish, the effluent treatment that protects the discharge, and the utilities that protect uptime.
High-purity water for finishing & paint
Reverse osmosis and the treatment behind it hold the water to a controlled, consistent grade, monitored — so the water stops being a source of finishing defects.
Oily & process wastewater
Oily, complex finishing and paint wastewater treated to a discharge standard under DWS requirements, with coagulation, flocculation and separation doing the heavy lifting. Where the streams allow, treated water can be recovered back into the plant.
Utilities behind the line
Boiler and cooling water treatment keep the utilities reliable, which protects uptime on a manufacturing operation where lost production time is expensive.
Quality and uptime
Two demands, one discipline: consistency
Paint-quality water in and compliant water out both come down to consistency, and consistency comes from the method on how we work: treat to a stated target, dose accurately, monitor on site, and report. A panel defect or a discharge exceedance is what happens when that consistency lapses.
The programmes
What an automotive plant runs on
Process water treatment
Controlled, consistent finishing and paint water.
View serviceEffluent treatment
Oily wastewater to discharge standards, with reuse.
View serviceFlocculation & clarification
Coagulation and separation on the paint-shop stream.
View serviceBoiler water treatment
Steam and heated pretreatment baths, run reliably.
View serviceStandards we work to
Where the treated quality supports the duty, treated wastewater can be reused on the line, reducing both the freshwater draw and the discharge volume. Boiler and cooling utilities are covered too, on the method set out on how we work.
- DWS discharge requirements
FAQ
Automotive water treatment questions
Why does paint quality depend on water treatment?
Surface finishing and paint processes are sensitive to contamination and water hardness, and a defect on a panel can trace directly back to feedwater quality. Reverse osmosis and the treatment behind it hold the water to a controlled, consistent grade, so the water stops being a source of finishing defects.
Can you treat the oily wastewater from our paint shop?
Yes. Oily, complex finishing and paint wastewater is treated against the discharge standard that governs it, with coagulation, flocculation and separation removing the oil, solids and load. Where the streams allow, treated water can be recovered back into the plant rather than discharged.
Can treated wastewater be reused on the line?
Where the treated quality supports the duty, yes, and it reduces both the freshwater draw and the discharge volume. The viable reuse is established from the site water balance, combining the effluent and process water design.
Do you also handle our boilers and cooling systems?
Yes. Boiler and cooling water treatment keep the utilities behind the line reliable, which protects uptime on a manufacturing operation where lost production time is expensive.
Your finishing water, or your effluent?
Tell us which. We hold the spec that protects the panel and treat the stream that protects the discharge.