Download - How do we convert this into a resource?. Is this really the best the we can do with R200million?
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How do we convert this into a resource?
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Is this really the best the we can do with R200million?
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Biogas to Electricity
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Biogas powered vehicles, Sweden
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5.3 Million Natural Gas Vehicles (NGVs)
In 2005 there were over
140,000 buses, 100,000 trucks, 5,100,000 cars
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ScrubberWaste water
OFMSW
High Rate Algae Oxidation Ponds
Biogas
Anaerobic Digestion
Biomethane
Process
Water
Organic fertilizer
Sweet sorghum & biofuel crops
Horticulture and nursery
Bioprocess Plant for the extraction of oils, biodiesel, nutracueticals, metabolites & ß-carotene
Public Transport
Digested
sludge
Compost Tree Nursery & potting soil
Heat
Garden refuse
Industry
Solution:
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Garden Refuse82.2 tons/day
leafy fraction12.3 tons/day
woody fraction36.6 tons per day
ChipperGassifier
Composting
Abattoir Waste10 tons/day
Food Waste 17.7 tons/day(future)
Generator
Continuous Stirred Tank Reactor (CSTR)
Pasterurizer
Dewatering
Heat 2.1MWh
Sta
balis
ed S
ludg
e15
m3 p
er d
ay4
tons
/day
sol
ids
Pasterurizer
Sludge15m3/day
Grid (REFIT)& Industry BackupPower
Electricity1.2MW
mixed fraction33.3 tons/day
Waste Activated Sludge (WAS)2000 m3/day
Sludge Concentration
Concentrated Sludge403m3/day
Second Creek Waste Water 8000 m3/day
Upflow Anaerobic Sludge Blanket (UASB) Reactor for Domestic Waste Water
Sludge15m3/day
Supernatent1612m3/day
West Bank Waste Water8000 m3/day present15000 m3/day future Upflow Anaerobic Sludge
Blanket (UASB) Reactor for Industrial Waste Water
Sludge15-28m3/day
Vermi-composting
Sludge Concentration
Supernatent
Stabalised Sludge3-5.6m3/day
Sludge drying & storage
Mixing
Heavy Metals Testing
Pasterurizer
meets DAFF standardsfails DAFF
standards
Vermicastings
Vermi Tea
Aquaculture & chicken feed
Worm Biomass
Trickle Filter
High Rate Algal Ponds (HRAPs)
High Rate Algal Ponds (HRAPs)
Filtration
Reverse Osmosis
Plant
Municipal Mains
Pot
able
w
ater
Grade A Compost
Agriculture and horticultural
Agriculture and horticultural
Biogas
Biogas
Biogas
Agriculture and horticultural
Green scorpions
investigation
Disposal to landfill
Macerator
Macerator
Algal biomass
Storagefor industry
Humus tank
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10Ml/day wastewater diverted from hoodpoint marine outfall pipe requirements 4km of 160mm pipe & 150kW pumpset
2Ml/day waste activated sludge diverted from pipeline to hoodpoint marine outfall pipe, 800m of 160mm pipe no additional pumping
8Ml/day existing flows 2nd creek WW pump station, eliminate requirment for 220kW pump set
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Garden Refuse
30 000 tons per year or biomass resource going to waste
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Garden refuse
East London Generates 30000 tons per year (82.2 tons per day) of garden refuse at four Garden Refuse Transfer Stations (GRTS) which get transported to Roundhill Landfill.
• Divert 15% (4500 tons/a) of grass & fresh leafy fraction to biogas digester
• Divert 40% (12144 tons/a) of the mixed woody and leafy waste to co composting with digester sludge.
• Divert 45% (13356 tons/a) of the woody biomass to a 1.35MWe & 2.1 MWth gasifier CHP
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Closing the Rural and Urban Loop in a Zero Waste Economy
Job creation, food security, energy & fuel security, environmental protection, and nutrient beneficiation