Waste to Energy & Anaerobic Digestion APCE Sept 16, 2014

Size: px

Start display at page:

Download "Waste to Energy & Anaerobic Digestion APCE Sept 16, 2014"

Priscilla Blair
6 years ago
Views:

1 Driven by pure energy Vers :49:17 Waste to Energy & Anaerobic Digestion APCE Sept 16,

2 Overview 1. What is biogas & anaerobic digestion? 2. What waste products are normally treated in an anaerobic digester? 3. How does anaerobic digestion relate to other Waste to Energy products?

3 What is Biogas & Anaerobic Digestion? Biogas is a combustible gas primarily composed of methane and carbon dioxide, which is produced by microbes in anaerobic conditions Anaerobic digestion converts the volatile solid portion of a substrate into biogas

4 What is Anaerobic Digestion? Anaerobic digestion occurs in the absence of oxygen. A combination of bacteria and archea (very old life, which can covert acids into methane)

5 Types of Anaerobic Digesters Different styles vary based on: - Ability to treat different types of substrates; - Ability to accomodate changes in menus; - Cost; - Existing installations in North America and Europe; - Ability to maximize the amount of biogas produced per tonne. Type Lagoon Plug Flow Complete Mix Suitable DM in input Biogas yields Fixed Film Dry Digester < 3% 7-13% 3-12% 2-10% >35% Low Medium High High Medium OLR Low Medium Medium High High Costs Low Medium Medium High Medium -5-

6 Examples of Anaerobic Digestion Technology

ABC Workshop: How to Build a Successful Biogas Project Strategies from Proven Projects This is your chance to ask the experts.

Anaerobic digestion and biogas offer a unique solution to a community s waste and energy needs.

natural gas, but also highly valuable co-products such as soil amendments and nutrients.

7 ABC Workshop: How to Build a Successful Biogas Project Strategies from Proven Projects This is your chance to ask the experts. This classroom style workshop will feature seasoned experts with years of experience developing biogas projects in an array of locations. Anaerobic digestion and biogas offer a unique solution to a community s waste and energy needs. By utilizing your valuable organic waste you can create not only renewable electricity at a sustainable price, vehicle fuel and renewable natural gas, but also highly valuable co-products such as soil amendments and nutrients. Topics include: Feedstock management and implications Cost implications of technology Avoiding digester errors Biogas Co-products Successful integration strategies And more.. For further details, please see page 32 in your program guide

Types of Substrates for Anaerobic Digestion Types of Substrates Agricultural products -

Food by-products - Glycerine - Slaughterhouse waste - Vegetables (grocery stores, source

8 Types of Substrates for Anaerobic Digestion Types of Substrates Agricultural products - Manure - Energy crops (grass silage, corn silage) - Crop by-products (straw, corn stover) Food by-products - Glycerine - Slaughterhouse waste - Vegetables (grocery stores, source separated organics) - Dissolved air flotation - Fats, oils & grease Wastewater - Sewage - Industrial

9 Types of Substrates for Anaerobic Digestion -9-

10 Substrate Parameters Critical Substrate Questions - Volumes/tonnage per day? - Consistency? - Solid or liquid? - Does it contain cleaning substances or foreign objects? - Tipping fees/cost to purchase? - How often will it be delivered?

Where Does Anaerobic Digestion Fit in WTE? http://www.ionacapital.co.

11 Where Does Anaerobic Digestion Fit in WTE?

- Maximum electrical production? - Maximum volume reduction? - Maximum profit?

12 Next Steps in Developing the Market - How do we avoid excessive competition between technologies? - Is it possible to develop a neutral method to determine the best way to treat substrates? - How do we define best utilization? - Maximum electrical production? - Maximum volume reduction? - Maximum profit? - What happens with the rest of the waste generated in the US?

13 Thank you for your attention! PlanET Biogas USA Inc. Vicki Elliott, MASc, EIT (California) Microbiology Manager, North America 5937 State Route 11 Homer, NY USA Tel Fax. (905)

Driven by pure energy. Understanding the Important Factors of Anaerobic Digestion ABC Workshop - May 27,

Driven by pure energy. Understanding the Important Factors of Anaerobic Digestion ABC Workshop - May 27, Driven by pure energy Vers. 04.06.2014 12:28:55 Understanding the Important Factors of Anaerobic Digestion ABC Workshop - May 27, 2014 www.planet-biogas.com -1- FACTORS OF SUCCESS 1. Understanding the