BIOSOR - A Peat-based System Wastewater Treatment Workshop St. John's March 29 and 30 2005
CONTENT Technology BIOSOR History of BIOSOR Two case studies BIC (1997): 15 employee-site Kipawa (2001): 600 inhabitants Communal approach
What is BIOSOR? BIOfiltration sur Support Organic = organic support biofiltration Aerobic (low pressure air injected) Fix media with a support structure: peat + wood chips + other organic ingredients Gradient of filtration (patented non clogging multi layer approach) Ideal for: High organic loads (manure) or High hydraulic loads (group of houses, small municipalities, etc.) Completely passive operation and low maintenance system Quebec government pre-approval for commercial / communal / institutional (third party verification in 2000) French government pre-approval for manure treatment (third party verification in 2001)
WHAT IS HAPPENING? Filtration Absorption Adsorption Cation exchange Carbon biodegradation (BOD 5 removal) Nitrification (NH 4 NO 3 ) Denitrification (NO 3 N 2 ) Why no biological sludge disposal? Equilibrium almost obtained between growth and death of bacteria The biomass accumulates very slowly, and mineralization occurs
BIOSOR HISTORY CRIQ invention Centre de Recherche Industrielle du Quebec Ongoing program for treatment and valorization of residuals Para public organisation $15 million invested by CRIQ 15 years of Development 7 years of full scale in field ongoing operation Applications: Liquid swine manure Domestic wastewater Agriculture effluents (agri-food) Other (air, phenols, oily water, glucose water) 1 000 to 500 000L/day 150 to 30 000 mg/l of BOD 5
Applications - Domestic Commercial - Manure - Agri-food - Odour treatment France 2000 Quebec 1999 Québec 1999 Quebec 1997 Quebec 1997 France 2000 France 2003 Quebec 2001 Quebec 2000
First domestic project implemented in 1997: BIC Domestic wastewater from a grain mill with 15 employees Implemented in 1997 Test protocol with the ministry of environment Characteristic Raw After BIOSOR BOD 150 mg/l 6 mg/l TSS 200 mg/l 2 mg/l Ntk 110 mg/l 30 mg/l Coliforms 10 5 10 2 «Taking care of the BIOSOR is is 10 Source CRIQ, 97-00 minutes per week» France Lebel, system operator, Quebec
Complete Process
BIOSOR DOMESTIC WASTEWATER GOVERNMENT APPROVED «Tertiary effluent quality» http://www.menv.gouv.qc.ca/eau/eaux-usees/usees/fiches/biosor.htm
Approved performance BOD 5 TSS fecal coli forms
BIOSOR KIPAWA EAGLE VILLAGE Treating since 2001 Serving 680 people Design flow-125 000 L/d
Complete process Ventilateurs Eaux usées Biofiltre #1 Biofiltre #2 Eaux traitées vers le milieu récepteur Fosse septique (FS) Bassin de régulation (BR) Puits de Pompage (PP-1) Biofiltre #3
Variation of daily flow Daily flow rate at the plant's inlet 450 425 400 375 350 325 300 275 250 225 200 175 150 125 100 75 50 25 0 04-05-02 24-04-02 14-04-02 04-04-02 25-03-02 15-03-02 05-03-02 23-02-02 13-02-02 03-02-02 24-01-02 14-01-02 04-01-02 25-12-01 15-12-01 05-12-01 25-11-01 15-11-01 05-11-01 26-10-01 16-10-01 06-10-01 26-09-01 16-09-01 06-09-01 27-08-01 17-08-01 07-08-01 28-07-01 18-07-01 08-07-01 28-06-01 18-06-01 08-06-01 29-05-01 19-05-01 09-05-01 29-04-01 19-04-01 09-04-01 30-03-01 20-03-01 10-03-01 28-02-01 Date Volume (m 3 /d)
BIOSOR DOMESTIC WASTEWATER BOD5 inlet and outlet of biofilters 14-04-02 25-03-02 05-03-02 13-02-02 24-01-02 04-01-02 15-12-01 25-11-01 05-11-01 16-10-01 26-09-01 06-09-01 17-08-01 28-07-01 08-07-01 18-06-01 29-05-01 09-05-01 19-04-01 30-03-01 10-03-01 18-02-01 29-01-01 400 350 300 250 200 150 100 50 0 average outlet = 6 mg/l (all year) discharge criteria = <43mg/L (all year) outlet inlet Kipawa data, Source CRIQ Time (days) BOD5 (mg/l)
BIOSOR DOMESTIC WASTEWATER Suspended solids inlet and outlet of biofilters SS (mg/l) 500 480 460 440 420 400 380 360 340 320 300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 inlet outlet average outlet (summer) = 4 mg/l discharge criteria (summer) = < 7mg/L average outlet (winter) = 4 mg/l discharge criteria (winter) = < 169 mg/l 14-04-02 25-03-02 05-03-02 13-02-02 24-01-02 04-01-02 15-12-01 25-11-01 05-11-01 16-10-01 26-09-01 06-09-01 17-08-01 28-07-01 08-07-01 18-06-01 29-05-01 09-05-01 19-04-01 30-03-01 10-03-01 18-02-01 29-01-01 Time (days) Kipawa data, Source CRIQ
BIOSOR DOMESTIC WASTEWATER Fecal coliforms inlet and oulet of biofilters 100000000 inlet outlet 10000000 average outlet (summer) = 2,4E +05 UFC/100ml discharge criteria (summer) = 1,5E +03 UFC/100ml average outlet (winter) = 6,7E +03 UFC/100ml discharge criteria (winter) = 8,0E +03 UFC/100ml Fecal coliform s (NPP/100m l)) 1000000 100000 10000 1000 100 winter summer 10 1 14-04-02 25-03-02 05-03-02 13-02-02 24-01-02 04-01-02 15-12-01 25-11-01 05-11-01 16-10-01 26-09-01 06-09-01 17-08-01 28-07-01 08-07-01 18-06-01 29-05-01 09-05-01 19-04-01 30-03-01 10-03-01 18-02-01 29-01-01 Time (days) Kipawa data, Source CRIQ
BIOSOR DOMESTIC WASTEWATER Ammoniacal Nitrogen at the Biofilters'Inlet and Outlet N-NH4-outlet N-NH4-inlet. 24-04-02 04-04-02 15-03-02 23-02-02 03-02-02 14-01-02 25-12-01 05-12-01 15-11-01 26-10-01 06-10-01 16-09-01 27-08-01 07-08-01 18-07-01 28-06-01 08-06-01 19-05-01 29-04-01 09-04-01 20-03-01 28-02-01 Date 08-02-01 19-01-01 30,0 25,0 20,0 15,0 10,0 5,0 0,0 Kipawa data, Source CRIQ NH4 (mg/l)
Temparature Temperature of Biofilter #1 and Raw Water in Relation to Season Biofilter average Raw water average 04-05-02 04-04-02 05-03-02 03-02-02 04-01-02 05-12-01 05-11-01 06-10-01 06-09-01 07-08-01 08-07-01 08-06-01 09-05-01 09-04-01 10-03-01 08-02-01 30 25 20 15 10 5 0 Date Température ( C)
BIOSOR : appreciated for reliability and low operation/maintenance Operation Weekly verifications of alarms logs on peripherals (pumps and blowers) (can be remotely monitored) Regular maintenance Water distribution maintenance (1 to 2 times/year = 1 to 3 hours) Pumps and blower normal manufacturer maintenance (easy access) Long term maintenance Media renewal partial or total (every 5 to 7 years) Very little little maintenance is is required It It is is not not expensive to to operate; the the holding tanks must must be be pumped out out occasionally We We monitor the the system, Health Canada also also does does additional monitoring to to ensure we we are are respecting the the environmental discharge criteria for for sewage discharge and and we we continue to to meet meet the the targets Lance Haymond, Chief Chief of of Eagle Eagle Village, Kipawa
BIOSOR : as a communal system Qualities of BIOSOR : Simplicity No operator system (passive system) Only weekly check ups by a non specialized employee Little maintenance, no heavy equipment One submersible pump and one blower (1 to 3 HP) outside the system Only maintenance on the distribution system - clean-up -2 times per year (couple of hours) Remote monitoring Robust -Stable Accepts variations in load and flow Non clogging distribution system Absorbs chocks and interruption operation Gravity feed is possible Low community impact Visually pleasing, no building (only a service shed) Secure, odourless, Quiet Economic
References Fancis Pichon, ing. M.Sc. Project manager, Public works and government Services Canada pichonf@ainc-inac.gc.ca Lance Haymond, Client lanceh@eaglevillagefirstnation.ca Marie-Louise Tremblay, microbiologist, M.Sc., CRIQ Marie-Louise.Tremblay@criq.qc.ca Janick Lemay, responsible for technology approval for the Ministry of the Environment and Municipal Affairs of Quebec Janick.Lemay@mamm.gouv.qc.ca www.biosor.com