Dem-Con Recovery & Recycling

Transcription

1 Landfill Established Acre Site Lined and Unlined Dem-Con Companies Recovery & Recycling Established 1999 Expanded 2008 Shingle Processing Established st facility to be granted MPCA approval MnDOT QA/QC Certified

2 Opened in 1999 as South Metro Sort & Recycle Started as Dump & Sort Ceased C&D Operations in 2003 and transitioned to MSW Transfer Reopened as a full scale C&D processor in 2008 Mixed manual and automated separation equipment

3 Facility overview 5.4 Acres 40,000 ft 2 30,000 for C&D 10,000 for MSW transfer Erin Processing Line installed Staff for facility

4 Processing Volume tpd Varies based on mix of construction vs. demo Materials Recovered Wood Aggregate Cardboard Metals Ferrous & Non Ferrous Wire

5 System Design Built for today and tomorrow 6 materials bins 4 currently used 2 for future materials All line sorters can pick two materials Expandable for air density separation

6 Material Flow Tipped and bulky material removed Dust controlled by misting incoming loads Material loaded to steel cleated infeed conveyor to finger screener

7 Vibrating finger screen Three size sort 2 minus >2 to <14 > 14

8 A and B Pick Stations A Line for >14 B Line for <2 to < 14

9 Materials Recovered Wood

10 Materials Recovered Aggregate

11 Materials Recovered Cardboard

12 Materials Recovered Ferrous Non Ferrous Metals Wire

13 Other Materials ADC & Residuals

14 What Next? Gypsum Drywall Plastics End Markets? No currently existing end markets for other products

15 MSW Transfer 150 tpd

16 Started in 2005 MN Greenstar Purpose of implementing best green practices A Green building standard and certification for existing and new homes Special attention given to Minnesota building code and unique climate Designed from the bottom up to be the best system for Minnesota

17 MN Greenstar Promotes healthy, durable, high performance homes 5 Key concepts Energy efficiency Resource efficiency Indoor environmental quality Water conservation Site and community

18 MN Greenstar Workshops Monthly and Full day workshops available Through the Builders Association of the Twin Cities Checklists and manuals also available on the website Contact Information 2960 Centre Pointe Drive Suite 100 Roseville, MN Phone

19 LEED Leadership in Energy and Environmental Design Developed by the US Green Building Council Internationally recognized certification system Measures performance through metrics Energy savings Water efficiency CO 2 emissions reduction Improved indoor air quality Stewardship or resources and sensitivity to their impacts

20 LEED Designed to work for both residential and commercial buildings Designed to create benefits throughout the lifecycle of the building Design Construction Maintenance Retrofits

21 LEED Certification based on a point system 110 possible points Sustainable site 21 Water efficiency 11 Energy & Atmosphere 37 Materials & Resources 14 Indoor Environmental Quality 17 Bonus Points 10 Innovation in design 6 Regional priority - 4

22 LEED Rating system options Homes Neighborhood development (in pilot) Commercial interiors Core & Shell New construction Schools, healthcare, retail Existing buildings, operations and maintenance

23 Who uses LEED? LEED Architects Real estate professionals Facility managers Engineers Interior designers Construction Managers Many others

24 LEED MR Credit 2.1 Construction Waste Management 1 Point Available Divert 50% from disposal and incinerators Construction, demolition and land clearing debris Implement a construction waste management plan May be source separated or comingled and hauled to processing facility Excavated soils are not included

25 LEED MR Credit 2.2 Construction Waste Management 1 Point Available Divert 75% from landfills and incinerators Recycle and/or salvage 25% beyond the MR Credit 2.1 MR 2.1 (50%) + MR 2.2 (additional 25%) = 75% of materials diverted

26 LEED Building C&D debris generated in the US EPA Report 1998 = 136 million tons EPA Report 2003 = 170 million tons 20% increase 170 million tons = 3.2lbs per person per day EPA has targeted C&D materials for reduction, reuse and recovery Resource Conservation Recovery Challenge (RCC)

27 Dem-Con Shingle Processing Ideas and Options Met with HMA Industry Rollout of R&D Nationwide Research Equipment Trials Process flow Trials Production Yard Development of MnDOT Specification - Ongoing

28 Dem-Con Shingle Processing Quantities Available Metro Area Aggressive Projections 167,000 ton 2008 Metro Area C&D Waste Recycling Report, Henry Fisher, MPCA Statewide Projections 230,000 ton 2008 Metro Area C&D Waste Recycling Report, Henry Fisher, MPCA Nationwide Projections 11 million ton ShingleRecycling.org

29 Dem-Con Shingle Processing What We Know Shingles contain approx. 20% asphalt 4x the amount of tear-off available vs. manufactured scrap EPA Region 5 supports initiatives MPCA supports initiatives Infrastructure is in place to produce clean ground product Tear-Off Projects have performed well and met densities City of St. Paul Dakota County Road Hassan Job Lower Afton Trail 2007 Dem-Con Companies

30 Dem-Con Shingle Processing Some other states with Tear Off specs Wisconsin Missouri Maine Georgia North Carolina Florida Maryland Michigan Pennsylvania

31 Dem-Con Shingle Processing Contamination Process must eliminate contamination Step by step process from incoming material to final product Verify material meets acceptance specifications Pre sort removal of large wood, plastic, metals, paper Sort line removal of all other contaminants Grind material to 100% passing ½ sieve Quality control throughout the entire process

32 Dem-Con Shingle Processing Nails 5/8 Screen with 100% passing ½ sieve 99.9% of nail removal with grinder magnet system HMA plants have magnet redundancy to capture any other metal Has not proven to be an issue in projects to date Wood, Plastics, Ferrous Metals Removed during pre-sort and on pick line Windblown litter must be controlled

33 Dem-Con Shingle Processing Quantities Available Metro Area Aggressive Projections 167,000 ton 2008 Metro Area C&D Waste Recycling Report, Henry Fisher, MPCA Statewide Projections 230,000 ton 2008 Metro Area C&D Waste Recycling Report, Henry Fisher, MPCA Nationwide Projections 11 million ton ShingleRecycling.org

34 Dem-Con Shingle Processing Clean Unsorted

35 Dem-Con Shingle Processing Asbestos Procedures minimize asbestos likelihood Single layer acceptance criteria Single family home reroof only Most asbestos would be in mastics that are removed during sorting Dem-Con results = 0 hits Test once per 50 ton pre-grind tests tests to date 3 rd party sample and lab Rooftop Recycling Inc. =.06% detection 4 hits in 25,389 samples as of 11/2007

36 Dem-Con Shingle Processing Leaching Florida and Washington have conducted leaching tests No detection on tests

37 Dem-Con Shingle Processing Process Flow Shingles Tipped Asbestos Testing Pre-Sort Metering Equipment Sort Line Grind Screen Load Out

38 Dem-Con Shingle Processing Process Flow Shingles Tipped Asbestos Testing Pre-Sort Metering Equipment Sort Line Grind Screen Load Out

39 Dem-Con Shingle Processing Process Flow Shingles Tipped Asbestos Testing Pre-Sort Metering Equipment Sort Line Grind Screen Load Out

40 Dem-Con Shingle Processing Process Flow Shingles Tipped Asbestos Testing Pre-Sort Metering Equipment Sort Line Grind Screen Load Out

41 Dem-Con Shingle Processing What Next? MnDOT Spec is Necessary HMA industry will not use material on a large scale unless MnDOT creates a spec Results of recovery and landfill abatement of tear off shingles Without MnDOT spec 2%-3% With MnDOT Spec 75% +

42 Dem-Con Companies Meeting Location Safety Vests required Coned Areas 2 Groups Stay with your guides Wind Shingle Equipment may not be running C&D Sort Line Viewed from ground Online can be done separately

43 Jason Haus Dem-Con Companies Mobile Office jasonhaus@dem-con.com