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Resident urges smaller-footprint MBBR technology for wastewater project
Summary
During public comment, a resident urged the city to consider moving-bed biofilm reactor (MBBR) technology or retrofitting the Rockwood facility to reduce land needs for a proposed 20-million-gallon-per-day wastewater plant, arguing it would limit property purchases despite a modest cost premium.
A resident who gave his address as 511 Barton Shore Court urged the council and staff to consider modern wastewater technologies that require a smaller footprint than conventional treatment when planning the city's proposed 20 million gallons-per-day facility.
The speaker described a moving bed biofilm reactor, or MBBR, and said it "is a technology that's been around since 2010" and that it would require "about a 5 acre building size" for the capacity discussed. He estimated the system to be "between 13 and 15% more expensive than the conventional technology," but argued that retrofitting existing facilities or choosing a compact site would avoid buying large parcels and lower overall program costs.
Council staff thanked the speaker and noted the comment for consideration as the city continues site analysis. Other public commenters weighed in on alternative sites and urged looking at locations that would reduce impacts on residences and limit needed new infrastructure.
