Calgary s Integrated Biosolids & Source Separated Organics Composting Facility Natasha Harckham, City of Calgary Residuals and Biosolids Seminar -

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1 Calgary s Integrated Biosolids & Source Separated Organics Composting Facility Natasha Harckham, City of Calgary Residuals and Biosolids Seminar - WEAO

2 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 2 Overview Biosolids Management Program background diversification Compost Facility Procurement Facility Contract Methodology Project Schedule Technology Biosolids Compost Closure

3 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 3 Background Three WWTPs >1,300,000 people Shepard Lagoons 22,000 tds

4 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 4 Calgro Program > 30 years Target 12,500 tds/yr City owned & operated Seasonal staff Subsurface injection

5 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 5 A Master Plan Screening TBL Review Risk Management Framework Regulatory & Market Reviews

6 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 6 Recommendations Optimize Calgro Optimize WWT process Dewatering facility (construction) Compost facility (construction) Additional beneficial use

7 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 7 Biosolids Management Strategy ~22,000 Tds/y CONTRACT ~25,000 Tds/y CONTRACT COMPOSTING ~29,000 Tds/y 3 rd BENEFICIAL USE COMPOSTING CALGRO VARIABLE CALGRO CALGRO VARIABLE CALGRO CALGRO VARIABLE CALGRO Recent ( ) Medium Term (to 2020) Longer Term (post 2020)

8 Estimated Post Mix Volume, Including Amendments (cubic metres per week) 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility Inter-Business Unit Synergies Anticipated Weekly Timeline - Year 2026 on a Processing Volume Basis Biosolids & Amendments Food Scraps Plus Leaf and Yard Waste Spring Cleanup Fall Cleanup Week

9 Composting Facility Procurement Timeline 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 9 August National Request for Information (RFI) released 17 responses July Request for Proposals (RFP) released to four shortlisted consortiums June Contract awarded August Start of construction November National Request for Qualifications (RFQ) released January & February Bids closed Bids included partial design and full pricing June Scheduled Substantial Completion date

10 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 10 Contract Methodology Chinook Resources Management General Partnership (CRMG) Design-Build-Operate-Maintain-Construction Finance (DBOMf) Model 10 years of operations and maintenance Marketing and sales are the responsibility of CRMG Partnership between: Design - Stantec Construction - Bird Construction & Maple Reinders Operations and Maintenance - AIM Environmental

11 Project Schedule Photo date: 2015-December Project Agreement signed June 25 Commenced construction August Civil works, piling, foundations and cast-in-place concrete vessel walls started 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 11

12 Project Schedule Photo date: 2016-August Processing Curing Storage Storage, process and curing buildings respectively enclosed Exterior civil works started in May 2016 Interior work to continue into /11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 12

13 Project Schedule March Equipment testing May Commissioning using feedstock April Dry run and simulated operation using SCADA system 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility June Substantial completion 13

14 14 Technology In-vessel, static aerated pile 21 days computer controlled (temp, O2, moisture) Hopper-fed screening Organics transferred to curing building via conveyor 21 day curing process, turned every 5 days Composted transferred to storage building via conveyor final screening process & windsifter

15 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 15 Site Plan

16 16 SSO Receiving and Preprocessing Biosolids Receiving & Preprocessing 8 Composting Vessels SSO only 10 Composting Vessels, biosolids and SSO (peak season only) Screening Biofilter

17 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 17 Biosolids Receiving and Mixing

18 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 18 Vessel Construction Feb 2016 August 2016 August 2016

19 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 19 Structural Steel May 2016

20 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 20 Odour Control 1. Negative air pressure 2. Ammonia scrubbers & organic media biofilters: Air from processing and curing building HVAC & compost vessels Acid storage Eight scrubber vessels Acid storage building is in annex building SCADA controlled acid addition 3. High Plume Exhaust fans Biofilter area

21 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 21 Ammonium Sulphate Recovery Process: Waste acid is dried by rapid evaporation (drum dryer) Ammonium sulphate cake approximately 21% N and 24% S by weight used as N fertilizer product (also ameliorates high soil ph) packed in plastic steel cages lines with polyethylene 500 tonnes/year

22 22 Biosolids Compost Class A Trademarked Brand Bulk sales only Primary market: soil blenders & agriculture

23 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 23 Educational Component

24 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 24 Education Room

25 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 25 Closing Facts 10,000 dry tonnes of biosolids feedstock Largest indoor vessel composting facility in Canada: 100,000 tonnes SSO, and 45,500 tonnes of dewatered biosolids Class A biosolids compost Operational in 2017

26 02/11/2016 Calgary s Integrated Biosolids & SSO Composting Facility 26 Acknowledgements: John Berry, City of Calgary, Waste & Recycling Services Scott Gamble, CH2M Hill Kevin Colbran, City of Calgary, Wastewater Treatment Catalina Nadeau-Bonilla, City of Calgary, Wastewater Treatment QUESTIONS?

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