Great Lakes Regional Pollution Prevention Roundtable
Promoting Pollution Prevention Through Information Exchange

GLRPPR Sector Resource: Nitric Acid Pickling Bath Recovery

Nitric Acid Pickling Bath Recovery

Gerlin Inc., located in Carol Stream, IL manufactures stainless steel pipe fittings and flanges. As part of Gerlin's process, stainless steel parts undergo a pickling bath step to provide the parts the required surface quality. The bath becomes depleted in 6-8 weeks and is recharged seven times per year. Gerlin's waste disposal costs run $18,000 per year and fresh chemical make-up costs are $13,000 per year. Besides becoming depleted, the pickling process is also a bottleneck in Gerlin's operation. WMRC engineers developed a pilot project using diffusion dialysis acid recovery technology to assist Gerlin. (PDF Format; Length: 1 page)


IL Waste Management & Research Center (WMRC)

Resource Type:
Case study/success story

Date of Publication:
November 1999

Associated Sectors:

GLRPPR is a member of the Pollution Prevention Resource Exchange, a national network of regional information centers: NEWMOA (Northeast), WRRC (Southeast), GLRPPR (Great Lakes), ZeroWasteNet (Southwest), P2RIC (Plains), Peaks to Prairies (Mountain), WSPPN (Pacific Southwest), PPRC (Northwest).


One East Hazelwood Drive; Champaign, IL; 61820; (800) 407-0261;