The Missouri Department of Natural Resources (MDNR) requires all wastewater treatment plants in the state to meet limits for bacteria (E. coli) in their effluent. Industrial WWTPs are no exception. BioKyowa, in Cape Girardeau, produces a line of amino acid products that generate a highly variable amount of high-strength wastewater. While the plant does not treat human waste, it does experience a form of E. coli bacteria as a byproduct of the manufacturing process.
BioKyowa was faced with a completion timeline of only 18 months when new limits were required of its WWTP. With other, more traditional forms of disinfection deemed infeasible due to extreme variations in loading of the WWTP, Black & Veatch selected an innovative, state-of-the-art application of membrane bio-reactor (MBR) treatment for removal of bacteria. Black & Veatch and BioKyowa collaborated on a progressive design-build approach, integrating design and construction, to advance the project on the fast-track schedule.
The project also included design and construction of new aeration basins, membrane tanks, membrane equipment building, electrical upgrades and ancillary equipment such as blowers, sludge pumps, and additions to the existing SCADA.