PRESIDENT GERSHMAN RELINQUISHED CHAIR, VICE PRESIDENT MARTINSON PRESIDING. COMMITTEE OF THE WHOLE - 2/25/02 - Pa2e 14
Mr. Feland stated that Mike Shea will give some comments reo alternatives that they are looking at, and Jim West, KBM, wiD present information on the pilot compost study that was contracted for in 1997 and completed in the year 2000; that he visited with Mayor Brown reo appointing an on-going working group of up to 3 council members and Mayor has asked tbat interested council members submit names to his office, and would report back to the conncil on a monthly basis on progress on this issue.
VICE PRESIDENT MARTINSON RELINQUISHED CHAIR, PRESIDENT GERSHMAN PRESIDING
Mike Shea, environmental coordinator, stated that in 1996 a lot of original decisions were made on the wastewater treatment plant and the biosolids handling, that in 1996 when they decided to go with the mechanical wastewater treatment plant, they knew they would be dealing with the biosolids issue and that biosolids treatment and handling is probably the most difficult aspect of the process and wanted to take an in depth look at what they were going to .do to treat the biosolids the new plant was going to generate, the plant wiD generate approx. 4 to 500 wet tons ofbiosolids per day, about 100,000 gal. at 8% solids, the biosolids need to be treated according to EP A regulations; in 1996 the 503 regs doubling the disposal and treatment of wastewater treatment biosolids came into effect and they looked at these and included in the staff report is a flow chart and reviewed this for the committee (this outlines the options that are available for disposal and treatment of the biosolids - Final use or disposal practice: land application, surface disposal OandfJIl for biosolids), incineration and co-disposal with municipal solid waste) Be stated they looked at these optious and what other municipalities in our region are doing with biosolids, problems they have, and generated criteria list to evaluate different processes that would be beneficial to Grand Forks' use; these criteria: 1) process that would generate a class A exceptional qualitY end product that would increase your final disposal options; 2) a process that was environmentally sound with minimal energy input and not generate any harmful by-products in the process; 3) the process must be flexible and capable of handling all the different waste streams generated within our region; 4) process must be simple, resilient and not prone to chronic upsets; 5) cost effective. Be stated in the staff report they included a number ofthe processes they looked at along with capital costs: anaerobic digestion with land application (significant capital costs); incineration (not cost effective and upon burning down creates an ash that you have to dispose of into a landf'IlI); landtilling as an alternative (need to meet a paint fJlter test, and is what doing at water treatment plant, dry them to point when put into paint mter no free liquid comes out ofthem); surface disposal (same as landfill but dedicated only to disposal of biosolids and would need treatment before being put in there and covered on a daily basis); and composting (this fit the criteria, cost effective and gave ns by far the best end product, and tbat's why decided to spend a good deal of money studying composting and purpose was to take the waste streams that we were generating and see ifwe could produce a beneficial product.