Digestion for Food Industries

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Anaerobic Digestion and Biogas Use in the Great Lakes Region Food Industries Wisconsin Bioenergy Summit October 6, 2011 Joe Kramer

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Joe Kramer's 2011 Wisconsin Bioenergy Summit presentation.

Transcript of Digestion for Food Industries

Page 1: Digestion for Food Industries

Anaerobic Digestion and Biogas Use in the Great Lakes

Region Food Industries Wisconsin Bioenergy Summit

October 6, 2011

Joe Kramer

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Energy Center of Wisconsin Madison, Wisconsin

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Great Lakes Region Food Industry Biogas Casebook

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Project Funders Agricultural Utilization Research Institute WI Focus

on Energy

Midwest Clean Energy

Application Center

General Mills

WI Milk Marketing

Board

Center for Innovative

Food Technology

NY State Energy

Research & Development

Authority

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Food Production Types Covered

•  Beer and beverages (2) •  Cheese (3)

•  Meat (beef and pork) (2) •  Vegetables (1)

•  Corn based snacks (1) •  Oats (1)

•  Refrigerated dough products (1) •  Sugar (1)

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Why Choose Anaerobic Digestion?

1. Cost-effective treatment

2. Produces renewable fuel

3. Can reduce odor from storage facilities

Reduced biosolids

Reduced energy needed

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Anaerobic Digester Types Profiled

  Covered lagoon (1)

  Mixed heated covered lagoon (1)

  Complete mix (2)

  Anaerobic contact process (3)

  Up-flow anaerobic sludge blanket (UASB) (4)

  Mobilized film technology (1)

Less complex More complex

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Digester Types

  Covered lagoon

  Mixed, heated covered lagoon

Graphic: Courtesy of US EPA AgSTAR Program.

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City of Monmouth, IL, Pork Processing

■  Unheated covered lagoon (2000), HRT 7 days

■  Receives heated wastewater from hog production

■  Installed to reduce odors, provide pre-treatment

■  Exploring biogas use options

PHOTO: Courtesy of Cliff Haefke, US DOE Midwest Clean Energy Application Center.

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Saputo Cheese USA

 Waupun, WI

 Mixed, heated, covered lagoon, (1991, 2009) HRT 5-6 days

  >100k cfd biogas, scrubbed, fuels boiler for digester heat

  Primary onsite treatment – after full treatment liquid is dischargeable

Photo courtesy of Saputo USA Inc.

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Digester Types (continued)

  Complete Mix (Continuous Mix)

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Photo courtesy of Seneca Foods.

Seneca Foods, Vegetable Processing

 Montgomery, MN

  Continuous mix, mesophilic, tank (2007), SF built, HRT 25-30 days

  Pre-treatment of vegetable processing waste

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Seneca Foods (continued)   Scrubbed, compressed, blended with NG

  Biogas displaces NG purchases

  Fuels process boiler and dryers in season

  Fuels boiler in off season, hot water sent to 31 radiant heaters

Photos courtesy of Seneca Foods.

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Digester Types (continued)

  Anaerobic contact process (ACP)

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JBS Green Bay, Beef Production

  Green Bay, Wisconsin

  Anaerobic contact process (1987), pre-treatment prior to city WWTP

  HRT ~2 days

  AD gives JBS control over WW treatment costs

Picture: Courtesy of JBS Green Bay.

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JBS Green Bay (continued)

  Biogas fuels 24.56MMBTU Cleaver Brooks boiler

  Use of biogas offsets $600,000 per year in operating costs

  Won 2005 WI Governor’s Award for Excellence in Environmental Performance

Picture: Courtesy of JBS Green Bay.

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Graphic: Courtesy of Doug Hamilton, Oklahoma State University

■  Up-flow anaerobic sludge blanket (UASB)

Digester Types (continued)

Influent

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City of Beaver Dam, WWTP Cheese Production

  Beaver Dam, Wisconsin

  Siemens Paques design, UASB (2011), ATI install, HRT 6 days

  Will pre-treat waste from Kraft cream cheese production before city WWTP

  City owns, Kraft will help finance w/fees

Picture: Courtesy of Dennis Totzke, Applied Technologies Inc.

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City of Beaver Dam WWTP (continued)

  Electricity sold to Alliant Energy

  Heat used for influent WW and digester

  Cost savings for all over alternatives

  Nearly cost-neutral for residents

Photo: Courtesy of Wayne Karlovich, Applied Technologies, Inc.

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City Brewery / Gundersen Lutheran

■  La Crosse, Wisconsin

■  Installed two Biothane UASB digesters (1982) for pre-treatment, HRT 4.4 hours

■  Gundersen Lutheran proposed to install generation (633kW)

■  GL sells electricity to Xcel Energy

■  CB uses heat on site

Photo: Courtesy of Gundersen Lutheran.

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AD Benefits Revisited

Reduced treatment costs

• Improved profitability • Aid job retention • Create new jobs • Boost local economies

Companies “green” images

• Users of clean, renewable domestic energy • Good neighbors

Photo: Courtesy of Dennis Totzke, Applied Technologies, Inc.

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Contact

Joe Kramer Energy Center of Wisconsin 455 Science Drive, Suite 200 Madison, Wisconsin 53711 608-238-8276x119 [email protected]

www.ecw.org/biogascasebook