Posts by WEXCOenviro
Major Freeway Truck Stop
Issue: A truck stop is changing ownership, and the existing onsite sewage treatment system is noncompliant. The truck stop includes a full-service restaurant, convenience store and shower facilities. A major chain submarine shop will also be added. The onsite system includes 26,000 gallons in treatment tank capacity, a recirculating gravel filter and 16 septic mounds…
Read MoreChicken Egg Processing Plant
Issue: A chicken egg-processing plant is experiencing malodor from a 800,000-gallon lagoon in its wastewater treatment facility. BOD in this lagoon is 2,600 mg/L. Flow into the lagoon is about 35,000 GPD, and the system operator estimated influent BOD of 1,500 mg/L. Action: Install 2 MBD-12 aerators. Odor improves; results are less than expected. New…
Read MorePig Nursery Lagoon Odor Reduction
I Issue: A 17,000-head pig nursery is experiencing odor problems in a 16 million gallon manure lagoon. System loading is 2,890 lbs. BOD/day. Lagoon BOD is 12,100 mg/L Lagoon HPC (Heterotrophic Plate Count) is 750,000 cfu/ml Lagoon TKN is 1,080 mg/L Lagoon TSS is 6,180 mg/L Malodor is high Action: Install six 2 HP MBD…
Read MoreEnergy Savings
Before: Lagoon with 7 surface aerators totaling 28 HP. After: Identical capacity lagoon with 4 MBD (Micro Bubble Diffusion) aerators totaling 8 HP.
Read MoreWinter Performance
Before: Other surface aerator – frozen conditions limit oxygen transfer.. After: Same facility, different lagoon. Open area of water with higher oxygen transfer with MBD (Micro Bubble Diffusion) in winter.
Read MoreSludge Reduction
Issue: An Iowa wastewater treatment facility has a three-pond lagoon system that receives 300,000 GPD influent. Sludge levels are 26″ – 32″ in cell one and sludge removal is required. In 2001, the estimated expense to waste the lagoons and make the associated equipment repairs was approximately $300,000. Action: Four 2-HP Micro Bubble Diffuser…
Read MoreOnce we hired you, all our septic problems stopped. — Jim, satisfied commercial customer
Read MoreWe reduced maintenance and headaches with Micro Bubble Diffusion aerators. — Dennis White, Region Manager of People Service, Inc.
Read MoreRaingarden Design
Raingardens are an effective way for homeowners to treat and infiltrate stormwater or surface water runoff during rain events. Designing a rain garden can involve some basic math and a little bit of creativity. Main features of a rain garden: Shallow (4” to 12” max. deep) depressions Surface should be dry in 48 hours or…
Read MoreShoreline Restoration
Issue: A lakeshore owner on Big Sandy Lake near McGregor, MN has a steep sandy shoreline with severe erosion problems. A large portion of the sandy shoreline has eroded away, causing the existing vegetation and trees to fall in the lake. Action: A shoreline stabilization project is designed by the local Soil and Water Conservation…
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