Agricultural Wastewater

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Chicken Egg Processing Plant

By WEXCOenviro | February 5, 2013

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…

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Pig Nursery Lagoon Odor Reduction

By WEXCOenviro | February 5, 2013

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…

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North Carolina Hog Lagoon

By WEXCOenviro | July 15, 2011

Overview:  A North Carolina company seeks to minimize pumping frequency and expense for solids removal from hog lagoons. Solution:  Install MBD Aeration based on lagoon volume.  Systems tested have an average sludge reduction from 5’ to 3.5’ over a 60 day period.  Electrical cost to reduce BOD from 400 feeder pigs in this test is…

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Iowa Dairy Lagoon

By WEXCOenviro | July 15, 2011

Overview:  Research project with Iowa State University measures dairy lagoon odor before and during treatment with Vacuum Bubble Aeration equipment. Results:  During treatment with MBD Aeration there is a 94% odor reduction over 48 days.  Hydrogen sulfide is reduced from 22.3 ppm to 0.2 ppm.                      

stock photo dairy cows in large feed lot central california 12081157

California Dairy Lagoon

By WEXCOenviro | May 27, 2011

Overview:  A 2.5 million gallon California dairy lagoon exceeds emission standards.  In addition, land application of solids is restricted in the area and an extremely expensive option. Solution:  Install four MBD Model 600’s with total 12 HP.  Emission standards immediately come into compliance.  In addition, sludge is reduced from 15’ of depth to 3’1” of depth…