Central Marin Sanitation Agency Wastewater Treatment Plant Evaluation Client: Central Marin Sanitation Agency Location: San Rafael, CA The Central Marin Sanitation Agency (CMSA) Wastewater Treatment Plant (WWTP) located in San Rafael, CA is a 6 mgd ADWF plant with peak wet weather ows of 130 mgd. As part of wet weather upgrades, ferric chloride and polymer systems were installed to give CMSA the ability to perform chemically enhanced primary treatment (CEPT). While the ferric system was used regularly, the polymer system was observed to have negative eects on clarier performance. Hazen and Sawyer was selected to assist CMSA with evaluating and optimizing the CEPT system.Jar testing various doses of ferric and polymer. Hazen conducted full scale testing to observe primary clarier perfor

Join for free to read