Presentation on theme: "PRESENTATION FOR Bradford Environment Action Trust ON THE AUTOCLAVING OF MUNICIPAL WASTE PRESENTATION BY RICHARD LONGCAKE AND IAN BAIRSTOW 7 TH SEPTEMBER."— Presentation transcript:
PRESENTATION FOR Bradford Environment Action Trust ON THE AUTOCLAVING OF MUNICIPAL WASTE PRESENTATION BY RICHARD LONGCAKE AND IAN BAIRSTOW 7 TH SEPTEMBER 2007
Purpose Purpose of the presentation is to give a brief overview of the proposal to treat 130,000 Tonnes per annum of Bradford’s Household Waste using an autoclave. To outline key issues and messages. Answer any questions.
Background On 26 th June 2007 full Council resolved to award a short term contact for treatment of municipal waste. This tender will use autoclave technology, to be located at a facility on Buck Street in Bradford, for which planning permission was obtained by the contractor in May 2006.
Buck Street aerial view
Planning application Buck Street site planning application took 12 months to determine, Planning decision includes several conditions covering its operation eg limits on traffic movements The application included a site search and a full environmental impact assessment covering issues of odour, emissions, and traffic Regenerates a currently derelict brown field site The site meets planning criteria being located in an employment zone which is mainly industrial in nature
Wastes Management The council will deliver 130,000 tpa of household waste The process will seek to divert some 75,000 tpa of BMW away from landfill The site will not be licensed for receipt of hazardous wastes If hazardous wastes accidentally arrive at the site, the waste acceptance procedures as required by the site licence will identify them, and quarantine them pending disposal as agreed with the EA As a result of gas and water filtration there may be a small amount of solid residue which testing may show it to be hazardous waste requiring specialised disposal
Emissions EIA includes assessing impacts of emissions (human population), and details mitigation, main points to note are: All waste handling and treatment takes place inside an enclosed building with negative air pressure and airlock doors There are several air changes per hour via a filtration system with activated charcoal No waste is combusted on site – no gases Only exhaust gases are from heat raising plant
Emissions Maximum projected level of emissions is only 5% of Environmental Quality Standard Site operations will be subject to a Waste Management Licence, issued and monitored by the EA, this covers the Human Population issues, limits will be set and monitored (see Table 2) The site will not be licensed for receipt of hazardous waste
TABLE 2 PollutantMetricModelled Concentration EQS Nitrogen oxidesAnnual mean µg.m -3 Hourly Maximum µg.m -3 Particulate materialAnnual mean µg.m -3 Daily maximum µg.m -3 Sulphur dioxideHourly maximum µg.m -3 Daily maximum µg.m -3
Global carbon position The plant will process 130,000t/pa of MSW, of which a 20% residue, or 26,000t/pa, will go to landfill Avoided landfill = 104,000t/pa One tonne of waste in a landfill degrades anaerobically, producing green house gases in approx ratio 400 cubic metres methane and 400 cubic metres of carbon dioxide The plant is a net energy user at 10.5MWh – natural gas, not renewable
Global warming comparison Global warming potentialTonnes / yr Waste processed 130,000 Waste diverted from landfill 104,000 CO 2 tonnes impact of landfill 39,000 CO 2 impact of autoclave CO 2 tonnes saving by diversion-31,200 Energy used by autoclaves (3) 10.5 MWh CO 2 impact of gas used 7,000 Net CO 2 tonnes benefit of autoclave -24,200
Community benefit Buck Street will create 40 new jobs located in a modern purpose built facility, with atmospheric controls and mechanised waste handling and sortation Will generate a community fund based on a 30p levy for each tonne of waste received - generate £40,000/year Site improvement, as the development brings back into use a 1.1 hectare area of long standing derelict land