Full-scale Hydro MicroScreen™ system prevents 3.8 tons of solids from entering other treatment processes each day. Installed system will have a full ROI in just one year.
A large California chicken kill plant had a secondary drum screen that was failing to protect their Equalization Basin (EQ). As a result Dissolved Air Flotation (DAF) and Biological Nutrient Removal (BNR) systems were not in compliance. Plant operators indicated that their EQ tank was about 70% filled with solids. The solids load had gotten so bad that they were no longer able to operate mixing equipment in the EQ tank.
A Hydro MicroScreen™ was installed after their drum screen to capture materials that were passing through it. After just 24 hours, the Hydro MicroScreen™ removed 1 ton of material at 32% dry solids. All of this material would otherwise have been free to enter downstream treatment processes and rapidly fill their EQ tank. When installed, the full-scale Hydro MicroScreen™ system will prevent 3.8 tons of solids from entering other wastewater treatment processes every day.
Fats, Oil, and Grease (FOG) were also measured. FOG loading varied widely depending on when sampling was conducted. At one sample point, this plant had 1.6 ounces of FOG in each liter of water. The Hydro MicroScreen™ system was able to remove on average 83% of the FOG as an added benefit before entering the EQ basin. Additionally, the output from the Hydro MicroScreen™ was 32% Total Solids (TS) providing dry material that was much more cost-effective to dispose of and increased profits on reselling / repurposing of otherwise wasted by-product.
Despite being placed after a drum screen, it is estimated that the Hydro MicroScreen™ will prevent 1,387 tons of by-product from entering expensive downstream treatment processes each year. When installed on-site, the Hydro MicroScreen is projected to have a full ROI in 1 year from solids reduction alone.