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Introduction to Citadel Biocat+
NEW BIOTECHNOLOGY FOR AD PLANTS
NEW BIOTECHNOLOGY FOR AD PLANTS
Field trial results at AD plants
• Increased biogas• Improved stability• Reduced cycle time• Elimination of odours• Financial gain
Syntrophy with bacteria
Other applications
FIELD TRIAL AD PLANT FOR KOMPOGAS (OVER 25 PLANTS WORLD WIDE)
The (CPU) catalyst production unit islike a large teapot in which we brew BioCat+ for a week then replace theCartridge.
BioCat+ was initially set up to flowat a rate of 12lt per /hr at a temperature of 20 deg C
We eventually found the optimumsettings to be 20lt per/hr at 30 deg C
Recycled weather proofInsulation board panels
Lockable slidingService Inspection cover
Potable waterInlet
Hot inlet/outlet from CHP
HDPE convection Coil on 316 carrier frame
Outlet pipeTo application
CPU The Catalyst Production Unit is a fermentation vessel routinely fed with BioCat+ substrate cartridges.
Recycled plasticframe
Drain pipe
RecycledPolypropyleneTank
FIELD TRIAL THERMOPHILIC PERFORMANCE
Original plant spec: 40 tons per dayBiogas output spec: 4000 M3 p/d
After addition of BioCat+
AD cycle reduced from 20 to 10.5 daysTonnage: up to 60 tons p/dBiogas output: up to 8300 M3 p/d
Series1
-500000
0
500000
1000000
1500000
2000000
-190000 -120000
1000000
1500000
65000
140000
210000
360000
COST GATE FEES DIGESTATE BIOGAS
BEFORE CITADEL BIOCAT+
AFTER CITADEL BIOCAT+
POTENTIAL EARNINGS12,000 TONNE P.A. PLANT (US DOLLARS)
PROBLEMS & SOLUTIONS THERMOPHILIC PERFORMANCE
Low Biogas output Biogas increase up to 30% biogas
Limited gate fees due to AD capacity Load capacity increased by 50%
Mal odours Eliminated
AD Instability Leveled out
pH issues Neutralized
High H2S levels Drastically reduced
AD cycle 50% reduction
Slow ramp up of feed after breakdown Rapid re-establishment of feedrate
High energy costs Ventilation fans switched off, large savings
PLANT STABILITYTHERMOPHILIC PERFORMANCE
30.0 40.0 50.0 60.0 70.0 80.050.070.090.0
110.0130.0150.0170.0190.0210.0230.0250.0
f(x) = 2396.64160432867 x -̂0.778875722199293
M3 per ton of biogas from a mixed feed stock supply prior to BioCat+ inoculation
m3/tonnePower (m3/tonne)
tonnes alimentées par jour
prod
uctio
n de
bio
gaz e
n m
3/to
nne
30.0 40.0 50.0 60.0 70.0 80.050.070.090.0
110.0130.0150.0170.0190.0210.0230.0250.0
f(x) = 3374.22482477244 x -̂0.845676730612871R² = 0.871436829975468
M3 per ton of biogas output from the same feedstock with BioCat+ inoculation
m3/tonnePower (m3/tonne)
tonnes alimentées par jourpr
oduc
tion
de b
ioga
z en
m3/
tonn
e
BioCat+ inoculation began in the month of June 2011 Plant average = 40 tons/day
The average as of March 2012= 60 tons/day
Mesophilic
BIOGAS VOLUME /mt SUBSTRATE
Actual gas output
Estimated gas Potential
Start BioCat+
ODOUR REDUCTION & IMPROVED GAS QUALITYMESOPHILIC PERFORMANCE
PROBLEMS & SOLUTIONSMESOPHILIC PERFORMANCE
Normal Biogas output Increased up to 30% biogas
High Feedstock costs Reduced cost per unit of gas
Land use for energy crops Increased acreage for cash crops
AD Instability Leveled out
pH issues Neutralized
High H2S levels Drastically reduced
Slow ramp-up of feed after breakdown Rapid re-establishment of feedrate
Digestate disposal costs Less to be disposed of per unit gas produced.
Before BioCat+ After BioCat+
Syntrophy
CRENARCHAEOTABACTERIA
Bacteria
As bacteria accumulates waste, waste and energy to break it down are sent to BioCat+ (crenarchaeota).
BioCat+ breaks waste down.
Bacteria and BioCat+ bind membranes.
BioCat+ sends back CoA which provides more reaction sites in bacteria.
As a result, waste breakdown is accelerated.
Crenarchaeota
1/10th the radius
Coenzyme A
Waste Molecules + ATP
Syntrophy
Other applications
This tray with BioCat+
Augmented Digestate
Augmented Digestate
WASTE WATER TREATMENT
Activated sludge WWTP’s
Sludge reduction
Energy savings
Transport
Disposal fees
Chemicals
Discharge penalties
99
LANDFILL
Extend & Increase gas output
Reduce time scale to closure
Leachate treatment
UK partners for landfill projects: BIOGAS TECHNOLOGIES LTD
