Mr. Samstag has throughout his career been responsible for analysis of operating data from wastewater treatment plants as part of projects to upgrade or improve the performance of these facilities. In his current work as independent consultant he has helped a number of clients by providing operations analysis and recommendations on a continuing basis.
• City of Bellingham Post Point Treatment Plant. For this client Mr. Samstag prepares monthly reports and operations recommendations for a 34 mgd activated sludge treatment plant discharging to Bellingham Bay in Puget Sound. Work includes analysis of microscopic, process control, and laboratory data and biological treatment modeling. Recommendations on operational parameters including solids residence time (SRT) and dissolved oxygen set-points are made on a regular basis. Graphical and tabular summaries of loading data, effluent performance and process parameters are provided.
• For the City of Coos Bay, Oregon, Mr. Samstag performed dynamic full plant treatment plant modeling to assist the City in evaluation of whether to accept an industrial effluent. In the project Mr. Samstag simulated the dynamic treatment process using the BioWin software to estimate the potential impacts of addition of industrial flow during the extended summer period. The simulations indicate that an industrial flow of 1,000 gpm discharged during the period of 8 am to 4pm with 100 mg/L of inert suspended solids could have a significant impact on plant effluent performance, potentially doubling plant effluent suspended solids during the low flow period of the summer.
• City of Bainbridge Island Winslow Treatment Plant. As a volunteer for his home town Mr. Samstag prepared operations and capacity analysis and recommendations on potential upgrades to improve activated sludge settleability for a 1.2 mgd activated sludge treatment plant discharging to Puget Sound. Work included analysis of microscopic, process control, and laboratory data and biological treatment modeling. Recommendations were made on alternative modifications to activated sludge process flow geometry to potentially improve settleability while preserving nitrogen removal capability. Graphical summaries of loading data, effluent performance and process parameters were provided.