Every "pollution control" application is unique. Whether it is wastewater, or an air-born contaminate, industrial or commercial, every project is carefully reviewed and engineered to insure equipment selection is chosen to meet the exacting needs. With over 25 years of experience, and more than 500 custom projects to look back on, the owner of Environmental Products of MN. has a huge list of experienced companies, engineers, and individuals that specialize in the many fields required to give each and every customer the "right" piece of equipment, the first time.

Designed for the Control of Municipal and Industrial Wastewater

Typical Influent Levels of BOD and TSS are 200 to 5,000mg/l - Standard Reduction is 90%

APPLICATIONS - 1,000 to 1,000,000 gpd and larger

Municipal applications
Subdivisions
Hotels
Resorts
Trailer Parks
Remote locations
Parks and recreational areas
Food Processing
Industrial applications
Truck stops and washes
Mining
Logging

HOW A PACKAGE PLANTS WORKS
Wastewater gravity flows or is pumped to a mechanical separator, typically a bar screen, where larger solids are removed. Water then flows into the Equalization Tank where the Aeration process begins reducing contamination levels through the growth of microorganisms that literally consumes organic matter.

ABOVE GRADE INSTALLATION - Climate and location permitting

The Equalization Tank is designed to balance Influent levels entering the plant. Wastewater from the Equalization Tank then flows into the Aeration Chamber where the BOD, Suspended Solids, and Ammonia is reduced to design criteria levels through further and focused Aeration. This Aeration process creates a reaction called Flocking. Flocking is the organic matter that has been consumed and reduced by the microorganisms and in a near weightless state through aeration process flows into the Clarifier(s) where settling takes place.

The Clarifiers are sized so as to allow enough retention time ( typically 24 hours ) for the flocking ( aerated sludge or mixed liquor ) to settle to the bottom of the clarifier's hopper style tanks where a small specified amount is continually removed and transported (air lifted) to the Sludge Holding Tank. Further Aeration and concentration through decant-siphoning takes place in the Sludge Holding Tank. Water from the Clarifier area continues to flow into the Disinfection Chamber where Chlorination or UV treatment takes place. This disinfection is designed to kill remaining bacteria such as E.Coli.

The water at this point has reached design Effluent Levels, is visually clear, and odorless, and ready to be discharged to Lake, Stream, or Irrigation and some type.

ADVATAGES OF A STEEL FABRICATED PACKAGE PLANT

Modular System Design for ease of installation
Pre-engineered insures accuracy and repeatability
Prefabrication under controlled condition
Factory controlled coatings for superior protection
Reduced engineering and production time
Reduced maintenance through simplified design
Longer lifetime through controlled fabrication process

TYPICAL COMPONENTS OF A PACKAGE PLANT
Equalization Chamber - Aeration Chamber - Clarifier(s) - Sludge Holding Tank - Disinfection - Blowers - Misc. Pumps - Control Package - Open or insulated top grating - ANSI spec. stairs and railing.

OPTIONAL EQUIPMENT Muffin Monster or Influent Grinder - Oversized Equalization Chambers for applications where water flows are varied and come in surges - Phosphate and TKM Treatment - Round Mechanical Clarifiers - Tertiary Treatments such as UV, Ozone, and Reverse Osmosis.

BELOW GRADE INSTALLION - When discrete installations, or climate is an issue

"Specialized Products Since 1978"

Minneapolis, MN. ~ Phone: (952) 491-0368 Fax: (952) 926-0814
Email Environmental Products
website: www.envproducts.com