Urban Wood Utilization Tree Care Workshops

Transcription

1 Urban Wood Utilization 2017 Tree Care Workshops

2 COMMUNITY UTILIZATION STRATEGIES

3 Current Situation Tree pests Storm damage General removals/maintenance

4 Why Utilize Wood Waste? Community Reduce/recover tree management costs Reduce wood waste disposal costs Reduce landfill impacts Reduce pile burning Business Low/no cost access to wood resource Business marketing opportunity Unique wood supply opportunities

5 Best Utilization Option

6 Second Best Option High-value wood products High-volume wood products

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8 Operational Capacity Expertise Staff time Equipment Collection space Funding Regulations

9 In-house or Retail Products? In-house Mulch Compost Green lumber Retail Mulch Compost Finished lumber Furniture

10 Traditional Market Options Firewood Woody Biomass Fuel Sawlogs

11 Issues with Urban Wood Use

12 Public-Private Partnerships City of Lincoln Hofeling Enterprises Cass County communities Soil Dynamics Wisconsin communities Wisconsin Urban Wood Reduce community disposal costs Provides free resources for local businesses Demonstrates community involvement in providing solutions to communitywide issues

13 Overview Urban wood waste will always be an issue Living, healthy trees are the #1 priority Wood waste use always a better option than disposal Know you wood resource Consider your capabilities Investigate existing markets Consider options for a Public-Private Partnership

14 URBAN SAWMILLING

15 Traditional Tree Harvesting

16 Sawmilling Equipment Portable band sawmill Circular swing mill Chainsaw mill

17 Sawmilling Processes Slabs Cutting lumber from the log without rotating the log Often used in furniture manufacturing Utilizes the most volume of wood of all sawmilling processes Fastest milling process

18 Sawmilling Processes Square Lumber Produces more waste per log due to the removal of outer layers of the log Requires rotating of the log several times Produces lumber of consistent dimensions Allows for cutting lumber of with varying dimensions from one log

19 Lumber Stacking Improves airflow Increases drying speed Each layer should be uniform thickness Stickers (spacers between layers) should be space apart and approx. ¾ tall Stack should be covered with sheet metal and heavily weighted to protect from weather and reduce defects

20 Lumber Drying Removing the moisture from the wood through a combination of heat, humidity and airflow Hardwoods = ~7-9% moisture Softwoods = ~15-20% moisture

21 Lumber Drying Air Drying Uses natural airflow, temperatures and heat Very low cost Can be very effective for some applications Cannot produce low moisture content of kiln dried wood Takes several weeks/months to achieve final drying

22 Lumber Drying Kiln Drying Can range from low-tech to high-tech Several different kinds of kiln options Active drying method Occurs in condition controlled kiln room Drying can range from a few days to a few weeks depending on species and use

23 Lumber Finishing Once lumber has been dried, it can be manufactured into the final product Planing Edging Jointing Treating

24 The Lumber Process Harvesting Chainsaw Bucket truck Climbers Sawmilling Band mill Swing mill Chainsaw mill Milling Process Lumber stacking Lumber Drying Slabs Uniform stacking Air Drying Square lumber Kiln Drying Lumber Finishing Edger Planer Jointer Treatment

25 In Summary Utilizing urban wood waste can benefit communities, businesses and the environment Opportunity to recover some costs related to community forest management Be sure to have a concrete process in place to develop a utilization strategy Feel free to contact NFS for assistance with developing a utilization plan DON T FORGET TO REPLANT A TREE IN THE REMOVED TREE S PLACE!

26 Questions? Adam Smith 203G Forestry Hall Lincoln, NE Heather Nobert 203A Forestry Hall Lincoln, NE