Barry Coetzee (Pr. Eng, MBL) Manager: Technical Strategic Support City of Cape Town South Africa

Transcription

1 Barry Coetzee (Pr. Eng, MBL) Manager: Technical Strategic Support City of Cape Town South Africa

2 Cape Town s Waste Management and Strategy Plan Context: City of Cape Town Integrated Waste Management Strategy Transition Key findings from Municipal Systems Act S.78(3) Assessment: Implications Road ahead: Opportunities? Time line & Conclusion

3 City of Cape Town CONTEXT A-grade metro, port; Approx. 300 km coastline. Area approx km 2 ; Population est. 3.8 mill, growing approx. 2-3% p.a. (about 1.1 million h/holds, ~ informal) Approx. 67% of Western Cape s population; About 80% of W/Cape s economic activity.

4 WASTE SYSTEM CONTEXT New LFS VHLFS ARTS CPLFS SRTS Think Twice separation at source Project rolled out to approx households MRF s & Transfer Stations KIWMF Bellville S LFS BSIWMF Planned Existing Landfills Planned Existing Closed 3 Transfer Stations, 2 with Material Recovery Facilities. 3 operating landfills (Bellville S, Coastal Park, Vissershok), new landfill to be established (30-year life estimate); Landfilled 2.8-mill t (2006/07), 1.7-mill t (09/10), 2-mill t (10/11); 20 Community Drop-off Facilities; 2 Composting plants; Residential vs. industrial & commercial waste split ~46:54

5 Transition towards implementing integrated services 2006: IWM Policy & IWM Plan adopted by Council (aligning with principles in NWMS pre-statute). 1 st in SA pre-legislation, 1 st Think Twice pilot projects rolled out. 2009: IWM By-law adopted, promulgated. 2011: Municipal Systems Act S.78(3) completed, registration of CDM projects started. 2012: PPP Transaction Advice tender, Waste Cost Systems Model updated.

6 Overarching Vision for Cape Town s Waste Management To integrate waste management services in such a way that: resources available to provide basic services, efforts minimise the effects of waste: environmental & human health, resources. these will increase local economic activity using waste management initiatives. these follow the Waste Hierarchy (recovery before destruction). Part of local economic development strategy

7 Classical view on municipal waste management Product Use, Consume Generate waste Clean Collect Transfer Dispose

8 Cape Town s strategy for waste extracting value in partnership Product Separate at source Divert for production, export, etc. Use/ Consume Generate waste Clean Collect Separate/ Treat Treat for re-use Extract, recover, produce energy Extract waste water Disposal

9 Key Aspects of the City s Long-term Vision to provide access to basic services for all. to develop multiple integrated initiatives with industry that will reduce waste to landfill & associated impacts as well as support economic development. to optimise utilisation of City resources & capital. to generate alternative sources of funding for integrated waste management, e.g. through Public-Private Partnerships.

10 Athlone Refuse Transfer Station ARTS, including MRF and rail transfer

11 New MRF & Transfer Station at Kraaifontein (2011): opportunities for more partnerships?

12 Sewerage Sludge treatment option Anaerobic Digestion & Power Generation Plant?

13 Increasing Waste vs. Available Landfill Capacity S.78(3) Report MT New landfill development Airspace increases Waste growth est. with & without current recycling Available airspace Recycling (BAU) 1 Jan Jan Jan Jan Jan Jan Jan Jan Jan year difference: BAU not sustainable must implement large-scale initiatives Year to increase waste diversion for net additional benefits and to meet targets 1 Jan Jan 2016 Total waste generated (with recycling) Net landfill space available Recycled waste Total waste generated without recycling 1 Jan Jan Jan Jan Jan Jan Jan Jan Jan Jan 2026

14 Pareto (80/20) Approach: Mass Analysis for Optimisation Household greens 6% Characterisation of Waste Landfilled w.r.t Mass Parks 0% Household Hazardous 3% Other hazardous 6% Household Packaging 15% Greens directly to landfill as free waste 2% Household Paper 6% Household Food 5% Builders rubble 22% Household Other 10% Other trade wastes (incl. recyclables) 18% Organic trade wastes 7% Recovery for recycling about 27% (18% non-municipal), 2008/09

15 For Additional Diversion of Waste (alternatives) Waste Beneficiation (IWMF) Co-mingled Waste Organic Waste Management Net Additional Cost (NAC) p.a. R400m R425m R45m R55m R74m R98m Extra Tons diverted p.a. (t) Air space savings p.a. (m 3 ) Net Additional Cost (NAC) per tonne R1380 R R1350 R R750 R960 Builders Rubble (R4.2m) (R6.2m) * Household Hazardous Waste Collection R47m R50m (R50) (R75) * R2900 R3100 *Indirect savings are higher than the direct financial costs (2008/09 figures).

16 Waste Cost Systems Model for costing of Cape Town IWM By-law (2009) Net Additional Benefit/ (Cost) = Total Additional Benefit -Total Additional Cost (De Wit, Nahman, June 2009; updated by De Wit, March 2012 to include W-E) Net Additional Benefit / (Cost) = Market Value Recyclables (MVR) + Avoided Disposal Cost (ADC) - Savings in Indirect Costs (SIC) + Energy Recovery Value/ Generation Savings (ES) - Additional Cost to Collect (ACC) - Additional Cost to Process (ACP) - Additional Cost to Transport (ACT) - Additional Cost for Energy Production (EC)

17 FEASIBILITY ASSESSMENT OF PPP OPPORTUNTIES Available vs. planned? Scale (type, mass of waste)? Potential private sector projects (e.g. recovery, methane, refuse derived fuel, other)? Synergies/ risks? Best appropriate solutions? 8 Potential projects (sites): 4 IWM sites (transfer, other options, Waste-to-Energy). 2 Composting plants. 3 6 Landfills (LFG) 1 4 WWT Bio-mass (W-E)

18 Common Issues arising from Interaction with the Private Sector Integration with municipal waste services to give effect to legislation (to minimise waste & reduce landfill impacts, generate other benefits ) Access to municipal land (favourable consideration ); Access to certain types of waste in the waste stream (available markets ); Commercial activity, gain from activities (profit vs. affordability); Waste-to-energy/ Energy-from-waste (IPP, PPA, licence, power purchase, CDM revenue ).

19 Variations on a Theme 1/2 Public-Private Partnership (joint project) 1. New technology/ skills/ capacity/ funding 2. Use of municipal property/infrastructure for gain/ provision of a service on behalf of municipality for gain. 3. Service Delivery Agreement/ Long-term operating contracts (more than 3 years) 4. Capital investment by partner/ Risk transfer/ Asset Transfer.

20 Variations on a Theme 2/2 Public-Private Partnership (own project), 1. Use of municipal property/lease/ access to waste) Supply Contract 1. Need for access to waste (e.g. plastics, sewerage sludge, etc.) Municipal Contract for Services 1. Municipal capital investment 2. Long-term contract

21 Time Line & Next Steps CDM project Registration PPP feasibility evaluation of 8 possible projects: Waste & cross-cutting projects (LFG, organics sewerage sludge: W-E), diversion of recyclables Start PPP Transaction Advice Tender Depends on appeals? Tender Prep: LFG, W-E Tender Prep: IWM, Compost Plants Tender awards: Best & Final Offers Project implementation

22 Thank you Q & A