Monroe Environmental provides custom engineered environmental solutions for a variety of steel industry and metal production processes. Our solutions are cost effective and of the highest quality for heavy-duty operations. Monroe has an impressive client list and a wealth of application experience within the industry, including pollution control systems for mills, mini-mills, smelters, casters, picklers, galvanizers, heat treaters, and many others.
We understand the unique challenges that steel producers and metal refiners face due to competitive forces, aging infrastructure, and strict environmental regulations. Our engineers assist with providing reliable environmental solutions by adapting trusted engineering principles to the specific treatment needs and process requirements of each plant and application.
Monroe Can Help
Monroe Environmental has successfully engineered, fabricated, and installed countless Air Pollution Control and Water & Wastewater Treatment systems for the steel industry.
Contact a Monroe Applications Engineer for assistance with your specific environmental challenge.
Steel Industry Experience: Representative Projects and Systems
A large steel tube mill was experiencing issues with a low pH, corrosive stream that was eating through the lamella-style plate clarifiers on its galvanizing line. Monroe replaced the deteriorated coated steel clarifiers with custom designed acid/corrosion resistant thermoplastic units. Read More
An aluminum extruding plant had its large, aging circular clarifier break down and the site needed treatment while it was being repaired. Monroe provided (4) X-Flo Mobile Clarifiers™, allowing the plant to continue to treat its wastewater during this clarifier repair. The systems were selected because they would separate the floating oil/grease and the settleable solids in a single unit. Read More
A new Aluminum Mill was designing its wastewater treatment plant and called upon Monroe Environmental for several clarifiers and sludge pumps that were critical to the process. Monroe provided systems to clarify various chemical process streams containing heavy metals as well as also cooling tower filter backwash.
Read More
A prominent USA Steel Mill needed a new Mist/Fume Collector for its combo cold mill exhaust to both meet existing regulations and have the capability to meet upcoming condensable particulate matter (PM) regulations. Monroe Environmental designed a new system that would allow for existing ductwork infrastructure to remain in place – saving the plant considerable money on the new installation. Read More
5,000 ACFM Packed Tower Scrubbing System to control HCl fumes from the pickling acid storage tank farm at a steel plant. Scrubber, fan, and discharge stack were constructed from FRP. Monroe also designed the tank farm ductwork and provided instrumentation and controls.
Multi-Stage Oil Mist Collectors capture oil mist, PM, and fumes from rolling mill exhaust. The systems was capable of removing filterable and condensable PM with high-efficiency filters and a cooling coil/heat exchanger with chiller. Read More
100 ft. diameter high-torque Thickener Clarifier treating blast furnace scrubber blowdown. The system included an inlet well flocculator, 500,000 ft·lbs drive torque rating, PLC controls, redundant sludge pumps, and a 15 mg/l effluent TSS and 5% solids underflow performance guarantee. Read More
X-Flo Mobile Clarifiers™ Bypass Steel Mill Plate Clarifier During Repair: A temporary solution was needed to continue treating wastewater while an existing inclined plate clarifier was being rebuilt. The X-Flo Mobile Clarifier™, with its modular design and ability to run multiple units in parallel, treated the full flow in a limited footprint right outside the building where the existing equipment was housed. Read More
Lamella Plate Vertical Clarifier to remove iron and nickel hydroxides from metal finishing wastewater. The 1,533 GPM unit was constructed of 304SS, equipped with flash mixing and flocculation tanks, and provided over 3,900 ft2 of settling area.
A steel coil galvanizing plant was in need of a new coil treatment line to meet higher material quality standards and maintain production. Monroe Environmental provided engineering, integration, and oversight services for the redesign, retrofit, and installation of the multi-million dollar steel coil cleaning line and wastewater treatment system. Read More
Drag tank for mill scale separation for steel tube mill. Chain and flight drag conveyor to capture and remove solids from mill water and a tube skimmer to remove floating oil. The system is rated for 660 GPM. Read More
Circular Thickener for Backwash Water Treatment at Steel Rolling Mill: A steel rolling mill in Ontario, Canada required a reliable solution to treat backwash water from sand filters within its continuous caster cooling water loop. Read More
Circular Clarifier to remove TSS/fines from blast furnace scrubber wastewater. The 46 ft. diameter clarifier was elevated on legs for ease of access to sludge piping, and was designed to handle a 2,000 GPM max flow.
900 GPM API Separator for free oil separation prior to a DAF. The system featured inlet diffusion reaction jet baffles, chain and flight conveyor, and customized oil skimming system with collection beach and auger trough.
Circular Oil/Water Separator for primary treatment of waste oils and solids at a steel mill. The 50 ft. diameter clarifier was designed with low sidewater depth, inlet diffusion, and multiple skimming arms and collection troughs.
25,000 CFM Venturi Scrubber to capture and remove lubricant mist, particulate, and fumes from aluminum die casting operation. System included scrubber, fan, oil recovery unit, insulated liquid sump, and controls. Read More
40 GPM Horizontal Plate Clarifier to remove TSS from pickling wastewater prior to membrane filtration. The polypropylene clarifier was equipped with chemical mixers, HDPE separation plates, and surface oil skimmer.
Monroe 8A Belt Skimmers for oil recovery from wastewater tanks at a steel mill. The custom thermoplastic belts are rated to withstand 180°F liquid temperatures.