BioCycle

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Next Year's Conference:
October 21-23, 2013 • Columbus, Ohio

BioCycle Renewable Energy from Organics Recycling Conference

Presentation Descriptions
Tuesday, October 30, 2012 — Track 3

Updated 10.3

 
Presentation previews:   Monday: Plenary | Track 1 | Track 2 | Track 3   Tuesday: Track 1 | Track 2 | Track 3


Tuesday, October 30, 2012 | | TRACK 3 || 8:30 AM — 10:15 PM

Legislative And Regulatory Developments, Permitting

Legislative Climate For AD, Biogas Industry
Patrick Serfass, American Biogas Council
Executive Director of the American Biogas Council, a trade organization founded in 2010 that is advancing the anaerobic digestion and biogas industries, summarizes federal and state legislative accomplishments and current challenges. Current data on AD facilities and power production in the U.S. will be presented, along with the status of funding and incentive programs available from federal agencies.

State Digester Rule Development
Ken Powell, Kansas Department of Health and Environment

Pitfalls Of Permits
Margaret McCauley, USEPA
Anaerobic digesters hold great appeal as organic waste management tools. Including AD in municipal wastewater treatment plant (WWTP) operation and permits has been generally smooth, and there are many successful agricultural projects as well. The permit process has slowed as WWTP and manure digesters start to codigest other waste streams, such as FOG (fats, oils and grease) and food. How can we design projects to be nimble in their ability to utilize organic wastes, capitalize on the energy potential, and still provide predictable effluent quality? How can we write permits that facilitate the many beneficial aspects of AD and minimize the risks? This talk is from the regulator's perspective, providing a look into what those of us tasked with protecting U.S. water quality are thinking about as we try to keep up with the energy and innovation in the bioenergy sector.

Tuesday, October 30, 2012 | | TRACK 3 || 11:00 AM — 12:15 PM

Codigestion And High Solids AD

Codigestion Update — Trends, Systems, Projects
Dennis Totzke, Applied Technologies, Inc.

New Feedstocks For Industrial AD Systems
Ruihong Zhang, Clean World Partners
The Organic Waste Recycling Center at American River Packaging (ARP) is the very first commercial high solid anaerobic digestion (HSAD) system in the United States. The facility combines 7.5 tons of food waste from the Campbell Soup Company and area supermarkets with 0.5 tons/day of unrecyclable corrugated waste material fromARP and converts this to 1,300 kWh/day of renewable electricity. Solids are composted and sold as soil amendments for wholesale and retail distribution. This solution provides ARP with approximately half of its daily power needs to run its manufacturing facility. The HSAD technology has been invested in by two state agencies, CalRecycle and California Energy Commission. Presentation will focus on Clean World Partner's solution to a previously unused waste stream — unrecyclable corrugated waste — and how this creates processing possibilities for previously unrecognized and unutilized feedstock streams.

Codigestion Substrate Challenges
Richard Mattocks, Biothane and Barb Culton, Kline's Services, Inc.
Presentation reviews various substrates as well as experiences with codigesting them in different anaerobic digester systems. Case study on new AD facility in Pennsylvania codigesting food waste and municipal sludge in a 1.23 million gallon continuously-stirred reactor.

Tuesday, October 30, 2012 | | TRACK 3 || 1:45 PM — 3:30 PM

Food And FOG Preprocessing

FOG Delivery Agreements For Digester Gas Enhancement
Ari Elden, Liquid Environmental Solutions
Agencies and private developers are increasingly looking at fats, oils and grease (FOG) as a valuable substrate to increase the amount of digester gas produced in anaerobic digesters. With increased competition for FOG, public and private projects are developing innovative agreements and using risk management strategies to manage FOG delivery. Presentation provides an overview of the different strategies and agreements being used by public and private operators around the country to secure FOG volumes, minimize digester upsets, minimize the introduction of contaminants and fully maximize the use of FOG in anaerobic digesters.

Depackaging Systems Impact On AD Water Balance
Thomas Ferencevic, Yield Energy Inc.
This presentation will primarily focus on the operational impacts that depackaging systems have on biogas plants, specifically related to the potential increase in water consumption as well as the downstream influences on organic loading rates, retention time and biological stability.
Presenter will outline the pros and cons of taking a one versus multiple-step cleaning approach, and review technologies commonly deployed, discussing their technological and practical rationale. All potential digester feedstocks contain an indigestible fraction; the volumes and densities of these contaminants vary widely as does the processing requirements of various depackagingsystems.
The ultimate goal of a depackaging system is to allow the biogas plant operator more flexibility with respect to variety of contaminated feedstocks they can accept.

Food Waste Preprocessing For Anaerobic Digestion
Klaus Ruhmer, BDI-BioEnergy International
As new organic waste streams are identified, new challenges arise as to how to cost-effectively preprocess these materials so that they are suitable for anaerobic digestion. Key parameters such as total solids content, particle size, consistency and viscosity, organic and nonorganic (inert) content have to be understood and controlled. Preconsumer, packaged food waste (e.g. expired food, spoiled food, etc.) has become a very desirable feedstock for biogas due to its high energy content and its plentiful availability. Several technologies have been developed to automatically process these packaged food waste streams prior to BioGas conversion through anaerobic digestion. This presentation provides an overview of these various preprocessing technologies and assesses the advantages and disadvantages of the different approaches. Actual industrial scale processing experience and performance data is being presented as well.

Tuesday, October 30, 2012 | | TRACK 3 || 4:15 PM — 6:00 PM

Organics And Energy Recovery

Managing Organics Through Renewable Energy Project: Case Study
JD Lindeberg, Resource Recycling Systems
Biosolids, water conservation, source separated organics (SSO) and energy production come together for Dearborn, Michigan (home of Ford Motor Company) as they evaluate how best to manage their organic waste streams. This project balances a variety of needs and justifies the development of additional wastewater treatment plant capacity as a result of two policy drivers — supply of recycled process water that is essential to Dearborn's ability to retain a thriving industrial base, and production of energy from locally generated biosolids. Findings of a study evaluating these drivers to determine the feasibility for the construction of a waste to energy (WTE) facility for the City of Dearborn will be presented. The study included a statistical, financial, environmental, and community impact analysis in order to understand the beneficial uses of sludge, municipal solid waste, food waste, yard waste, and construction and demolition waste for the purpose of producing renewable power via WTE utilizing a biosolids management system.

Minimizing Emissions From Biological Waste Treatment Processes
Matthias Kuehle-Weidemeier, Wasteconsult International
The European BREF documents describe the Best Available Techniques (BAT) for low-emission operation of industrial installations that also include waste treatment plants. These must be observed in setting permit conditions for plants and constitute a major element of the permitting process. Due to the ongoing progress in technology development, the BREF documents must be reviewed for currency on a regular basis and updated, if necessary. One document considers aerobic and anaerobic treatment of separately collected organic waste and the other is on mechanical-biological treatment (MBT) of residual municipal waste. The documents were developed in cooperation with technical working groups that represent the major German waste management industry organisations, the German EPA and Wasteconsult. Germany has nearly 1,000 composting plants for organic waste and also nearly 1,000 biogas plants operated with organic waste. These figures do not include biogas plants for manure, sewage sludge or energy crops. Additionally there are 45 MBT plants for residual waste with total treatment capacity of 5.3 million tons per year. The paper will define the best available technologies based on emission values, best practice for operation, and requirements for plant construction and emission treatment systems.