Expert Testimony on Oxygen Requirements Admitted In 2015, the City of Sioux Falls (the "City") "commissioned the Sioux Falls Water Reclamation Facility Digester

Expert Testimony on Oxygen Requirements Admitted In 2015, the City of Sioux Falls (the "City") "commissioned the Sioux Falls Water Reclamation Facility Digester Gas Conditioning System Project (the 'Project') to add a new digester gas conditioning system to its water reclamation facility that would remove high concentrations of hydrogen sulfide to concentrations below 100 parts per million volume (ppmv), and that would remove siloxane to concentrations below 100 parts per billion by volume (ppbv), which would then enable the City to operate its GE Jenbacher gas engine generator to create electricity for the benefit of the City." For reasons which are disputed by the various parties in this matter, the Project, particularly the Azzuro system meant to remove hydrogen sulfide, was unsuccessful. The City disclosed Lowell Howard, PE, as a retained expert witness in this matter. Azzuro filed a motion to exclude in part the testimony of Howard. Howard is a decades-long veteran of the biogas industry. Where he opines on oxygen requirements for hydrogen sulfide removal, he does so relying on concepts of "[b]asic chemistry." Howard does not hold himself out as an expert on the particular growth media in the Azzuro system or biological solutions in general. Rather, he admits some unfamiliarity with those systems and how they operate except in the broadest sense. Howard supplemented his knowledge by reading a study about biological systems, but he did not start on a clean slate because there are not different periodic tables of elements for fixed-bed media systems and biological systems. Click the link in the comments below to read the full article 👇 #BiogasExpertWitness #expertwitness #BreachofContract