Pioneering An Organics Disposal Ban
In response to the Province of Nova Scotia’s ban on disposal of compostable organic materials in 1997, almost all municipalities launched 3-stream curbside collection programs.

The Canadian province of Nova Scotia banned landfill disposal of all compostables in 1997. Almost 20 years later, BioCycle checks in on organics diversion progress.
Peter Gorrie
BioCycle August 2015, Vol. 56, No. 7, p. 23

 

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Ontario Composter Expands With Digestate Processing
Digestate is mixed with carbon sources using an Ecoverse DW 3080 stationary shredder/blender in the enclosed receiving hall at the composting facility.

All Treat Farms composts digestate from the anaerobic digester servicing the City of Toronto’s residential organics collection program.
Peter Gorrie
BioCycle August 2015, Vol. 56, No. 7, p. 32

 

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Fueling Fleets With Renewable Natural Gas
Figure 1. Carbon intensity of various fuels

Renewable natural gas — which is cost-competitive with diesel fuel and carbon neutral — is the next game-changer in vehicle fueling.
Stephanie Thorson
BioCycle August 2015, Vol. 56, No. 7, p. 36

 

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Biosolids Compost Manufacturer Taps Agricultural Markets
As part of its expansion, three 162 feet by 120 feet Legacy Building Solutions’ fabric structures, with a clearance height of 18 feet, were installed for processing and curing. Each building has capacity for about 6 windrows (about 1,700 cubic yards). Lee County also purchased a second Ecoverse windrow turner.

Lee County, Florida composts biosolids from a dozen treatment plants along with yard trimmings to produce a fertilizer for area farmers, landscapers and homeowners.
Nora Goldstein
BioCycle August 2015, Vol. 56, No. 7, p. 45

 

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Connections: Good To The Last Grind
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Sally Brown
BioCycle August 2015, Vol. 56, No. 7, p. 53

 

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BioEnergy Outlook: Political Chatter
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Ted Niblock
BioCycle August 2015, Vol. 56, No. 7, p. 54

 

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Compost Restores Prairie, Improves Golf Course Turf
Applying compost made from the base’s food scraps and wood chips on prairie plots and scattering the larval and nectar host seeds led to spectacular growth.

Joint Base Lewis-McChord is using compost made from preconsumer food scraps on the base to restore habitat for several endangered species. Compost research at the base’s golf course also holds promise. Part II
Ashley Blazina
BioCycle July 2015, Vol. 56, No. 6, p. 29

 

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Wastewater Treatment Plants Shrink Carbon Footprint
The West Lafayette (Indiana) Wastewater Treatment Utility installed a receiving station with a platform, integrated cart tipper (left) and a JWC Environmental Macho Monster grinder to handle preconsumer food scraps such as melon rinds and banana peels.

BioCycle series concludes with a look at water resource recovery facilities in California, Indiana and Wisconsin. Part II
Marsha Johnston
BioCycle July 2015, Vol. 56, No. 6, p. 38

 

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Shedding Light On High Strength Organics For Codigestion
High strength organics used for codigestion at Jordan Dairy Farms in Rutland, Massachusetts include ice cream waste, processed meat DAF, dairy wash water and buttermilk whey.

Collecting sufficient data on high strength feedstocks for codigestion is essential to the understanding of process impacts and costs, and gaining acceptance from researchers and practitioners.
Vincent Apa and Patrick Evans
BioCycle July 2015, Vol. 56, No. 6, p. 41

 

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Organics Recycling In Maryland
The Maryland Department of the Environment notes that the recycling rate for yard trimmings was 70.9 percent in 2012, while the recycling rate for food waste was about 8.5 percent. Veteran Compost (facility above) in Aberdeen, Maryland composts food waste with ground wood.

Composting rule revision, utilization of compost by the Maryland State Highway Administration and consideration of food waste disposal ban are among recent developments.
Lori Scozzafava
BioCycle June 2015, Vol. 56, No. 5, p. 28

 

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Compost Use Trials On Ontario Farms
Crops that need a lot of nitrogen, such as corn (above), may need commercial fertilizer in addition to compost. For orchard crops, such as cherries and apples, compost alone can provide all necessary fertilization.

Results find compost benefits are dependent on soil type, crops being grown and their nitrogen requirements, the soil’s need for organic matter and the weather.
Peter Gorrie
BioCycle June 2015, Vol. 56, No. 5, p. 39

 

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Boosting Biogas And The Bottom Line At WRRFs
The East Bay Municipal Utility District (EBMUD) in Oakland, California, was an early pioneer in codigestion at water resource recovery facilities (WRRFs), utilizing its excess digester capacity to process food waste streams.

“Traditional” WWTPs with anaerobic digesters are adding high strength food waste and FOG to become Water Resource Recovery Facilities with significantly smaller carbon footprints. Part I
Marsha Johnston
BioCycle June 2015, Vol. 56, No. 5, p. 48

 

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Calculating Costs Of Organics Processing
Figure 1. Equipment cost model

An understanding of what equipment costs to operate — by calculating machine rates — is part of sound financial management of an organics processing facility.
Craig Coker
BioCycle May 2015, Vol. 56, No. 4, p. 25

 

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Building A Composting Niche
Amendments are placed in a truck-mounted vertical mixer, which is driven to GNP Company to collect the solids.

Mississippi Topsoils, Inc. in Minnesota has built its expertise and product markets around composting poultry solids and woody materials.
Dan Emerson
BioCycle May 2015, Vol. 56, No. 4, p. 29

 

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Insights Into Biogas Project Financing
46a

Recent American Biogas Council webinar focused on tools and strategies to raise capital for anaerobic digestion facilities targeting food waste feedstocks.
Marsha Johnston
BioCycle May 2015, Vol. 56, No. 4, p. 46

 

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Commentary: Biosolids: A Sustainable Nutrient Solution?
William E. Toffey

William E. Toffey
BioCycle May 2015, Vol. 56, No. 4, p. 54

 

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Advances In Compost Heat Recovery
A “plug and play” Compost Heat Wagon, operating this winter at Vermont Compost Company, includes a high power aeration fan and an Isobar™ heat recovery system.

Two Vermont enterprises are using heat from active composting piles — up to 1 million Btus of energy per ton of material composted — in greenhouse operations this winter.
Gaelan Brown
BioCycle March/April 2015, Vol. 56, No. 3, p. 34

 

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Integrating Digester, Tunnel Composter In France
Figure 1. Illustration of process flow at SMET 71’s Ecocea facility

The Ecocea anaerobic digestion and composting facility is expected to process 80,500 tons/year of household waste, with biomethane fed into an industrial natural gas network.
Marsha W. Johnston
BioCycle March/April 2015, Vol. 56, No. 3, p. 42

 

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Positive Air, Biofilter Cover Layer Control Biosolids Composting Emissions
Figure 1. Example test location

An R&D project at a California facility was executed under commercial-scale operation to evaluate the “+ASPw/BFC” technology’s operational feasibility and air emissions control performance.
T. Cordova, J. Goodwin, T. Card and C.E. Schmidt
BioCycle March/April 2015, Vol. 56, No. 3, p. 49

 

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Growing A Food Scrap Composting Infrastructure In Illinois
Several composting facilities in Illinois have expanded to accept food scraps, such as St. Louis Composting’s operation in Belleville, Illinois.

Stakeholder forums, a survey of Illinois composters and extensive research by the Illinois Food Scrap Coalition have resulted in a comprehensive report that will guide increased diversion and processing capacity.
Jennifer Nelson, Jennifer Jarland and Stephanie Katsaros
BioCycle March/April 2015, Vol. 56, No. 3, p. 52

 

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Agricultural Demand For Compost In Metro Portland Region
Figure 1: Closing the loop between food production and food consumption

TweetEconomic analysis of compost supply, demand and utilization involved gathering data from various sources, including agricultural extension services, Metro and interviews with composters and farmers. Jeri Sawyer, Bonnie Gee Yosick and Erin Harwood BioCycle March/April 2015, Vol. 56, No. 3, p. 57 (This article references tables available in BioCycle Magazine in print.) How can a……

 

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Food Scraps Diversion Feasibility In A Small City
Figure 2. Commercial solid waste collection containers in Rolla

A 2014 study sought to answer the question: Can diversion and composting be done cost-effectively, with minimal fiscal impact on Rolla, Missouri’s businesses and residents?
Craig Coker
BioCycle March/April 2015, Vol. 56, No. 3, p. 67

 

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Connections: Pride In Product
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Sally Brown
BioCycle March/April 2015, Vol. 56, No. 3, p. 84

 

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BioEnergy Outlook: Sanity Of Carbon Pricing
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Ted Niblock
BioCycle March/April 2015, Vol. 56, No. 3, p. 86

 

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Combatting Erosion With Compost
In May 2008, contractors installed a small run of sewer pipe in the upper portion of Wood Creek as well as rocks for bank protection, and covered the project area (top) with a two to four inch compost blanket to control erosion and sedimentation, as well as serve as a growing medium (vegetation shown bottom).

Plymouth, Minnesota employs compost and native plants to restore stream banks, controlling erosion and preventing sediment runoff into the community’s lake.
Dan Emerson
BioCycle February 2015, Vol. 56, No. 2, p. 33

 

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BioEnergy Outlook: Keystone Pipeline Fallout
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Ted Niblock
BioCycle February 2015, Vol. 56, No. 2, p. 46

 

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Source Separated Organics In Large New York City Apartment Buildings
Residents, managers and workers who are spearheading the process of apartment building-level SSO say they don’t really know what happens to the materials they are diverting.

Research at buildings with 10 or more units that are part of NYC’s curbside SSO pilot identifies five themes that have implications for the program’s near-term future.
Samantha MacBride
BioCycle January 2015, Vol. 56, No. 1, p. 67

 

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Anaerobic Digestion Infrastructure In Massachusetts
The first stand-alone nonfarm based digester in Massachusetts is owned by CRMC Bioenergy, LLC, and will accept food waste, FOG and WWTP biosolids. It is starting up in pilot mode. Photo courtesy of CRMC Bioenergy, LLC

Even with the new commercial organics ban, the tortoise is winning over the hare as AD facilities slowly roll out in Massachusetts. Part 2
Zoë Neale
BioCycle December 2014, Vol. 55, No. 11, p. 41

 

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Commentary: Climate Attitudes And U.S. Employment Rate
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Ted Niblock
BioCycle December 2014, Vol. 55, No. 11, p. 46

 

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Quantifying Landfill Biogas Production Potential In The U.S.
Figure 2. Overall amount of methane collected versus emitted annually for the U.S.

New study estimates that volume of landfill-derived methane in U.S. is 466 billion cubic feet per year, of which 66 percent is collected and only 58 percent is utilized.
A.E. Schauer-Gimenez, A.J. Cal, M-C. Morse, A.J. Pieja, K.M. Holtman and W.J. Orts
BioCycle November 2014, Vol. 55, No. 10, p. 43

 

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Utility Powers Up Anaerobic Digester
Delivery trucks unload feedstocks, sourced from a 60-mile radius of the plant, inside the receiving and preprocessing building. Solids are moved via an automatic crane (inset).

Hometown BioEnergy, LLC, a subsidiary of the Minnesota Municipal Power Agency, has capacity to produce 8 MW of electricity at its anaerobic digestion plant.
Dan Emerson
BioCycle November 2014, Vol. 55, No. 10, p. 48

 

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Texas Company Bets On Quality Compost
A Diamond Z tub grinder processes material after composting and before curing.

Entrepreneurs turned around a failing mulch grinding business and today operate several composting sites in the Houston, Texas region.
Dan Emerson
BioCycle October 2014, Vol. 55, No. 9, p. 32

 

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Taking States’ Pulse On Residential Food Waste Collection
General awareness of what composting is and how compost can be used to beautify neighborhoods are significant benefits of residential food scraps drop-off programs, like this one at a New York City Greenmarket.

State composting, recycling and/or solid waste officials provide perspectives on adoption of curbside collection and composting of source separated residential food scraps. Part I
Rhodes Yepsen
BioCycle October 2014, Vol. 55, No. 9, p. 39

 

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Anaerobic Digester Good Fit For Rendering Plant
A tanker truck delivers grease trap waste from restaurants in the area to the digester facility at North State Rendering.

California renderer installs digester system to process plant’s wastewater and grease trap waste, as well as additional food residuals streams. Conditioned biogas will fuel collection trucks.
Soren Rasmussen
BioCycle October 2014, Vol. 55, No. 9, p. 48

 

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Connections: Gaining Perspective
Sally Brown

Sally Brown
BioCycle October 2014, Vol. 55, No. 9, p. 50

 

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Understanding The Chemistry Of Compost Contact Water
Figure 1. Current and closed compost sites at Arboretum

Research study analyzed ground water coming into contact with active composting piles — both yard trimmings only and yard trimmings with food waste and paper. Part II
Ginny Black and Marcus Zbinden
BioCycle September 2014, Vol. 55, No. 8, p. 48

 

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California University Integrates Composting Education
The Center for Sustainability offers a variety of trainings, including one focused on vermicomposting, as well as a week-long certification course for professional composters.

California State Polytechnic University offers classes, trainings and hands on experience in composting and organic farming.
Ryan Cooper
BioCycle August 2014, Vol. 55, No. 7, p. 39

 

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Agency Shifts To Food-Only Commercial Organics
The first phase of the commercial organics food-only policy at the Metro Central Transfer Station goes into effect in November with restrictions on loads containing regular and waxed cardboard.

TweetA ruling that prohibited an area composting facility from receiving commercial food waste commingled with soiled paper, corrugated and compostable products ultimately led to new policy. Katrina Mendrey BioCycle July 2014, Vol. 55, No. 6, p. 30 Metro, the regional government in the Portland, Oregon metropolitan area, recently made a difficult decision. After nine years……

 

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Adding SSO To Yard Trimmings Composting Operations
Figure 1. Contact water monitoring system

The first phase of research at a Minnesota composting site suggests that environmental risk to groundwater is relatively low from addition of source separated organics. Part I
Ginny Black and Marcus Zbinden
BioCycle July 2014, Vol. 55, No. 6, p. 41

 

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Community Achieves An Odor Solution
A conveyor belt (left) was installed to transfer dewatered biosolids directly from the treatment plant to the adjacent composting site — which was required to install a biofilter system (right).

How citizens of Missoula, Montana worked with the local health department, consultants and the local treatment plant and composting facility to address nuisance odors.
Katrina Mendrey
BioCycle June 2014, Vol. 55, No. 5, p. 31

 

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Building Profitable Markets For Biosolids Products
TAGRO, short for Tacoma Grow, is made with the City of Tacoma’s Class A EQ biosolids that is mixed with sawdust, aged bark, wood chips and/or sand, depending on the product.

City of Tacoma, Washington reduced its cost of biosolids management from $60/wet ton to $26.50/wet ton by diversifying its TAGRO product line and growing its customer base.
Katrina Mendrey
BioCycle June 2014, Vol. 55, No. 5, p. 41

 

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“Food Waste To Watts” Organics Pilot
Commercial organics collected by Recology were unloaded in a bunker at the Humboldt Waste Management Authority’s transfer station for transport to a composting facility about 150 miles away.

An institutional and commercial organics collection program in Eureka, California, diverted 760 tons of food waste in a year-long trial.
Marsha Johnston
BioCycle June 2014, Vol. 55, No. 5, p. 38

 

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Zero Waste Composting
After establishing a robust prevention program, collection of the remaining SSO should be designed to leverage a community’s existing infrastructure, e.g., cocollection of SSO and recyclables.

An in-depth economic, social and environmental impact analysis factored in source reduction and home composting, as well as organics collection, composting and anaerobic digestion.
Joanna Stone, Kate Davenport and Bryan Ukena
BioCycle June 2014, Vol. 55, No. 5, p. 33

 

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Hitting The Road With RNG In Canada
Compressed natural gas produced by EBI Énergie from landfill biogas helps fuel the waste collection trucks operated by a sister company. The RNG is supplemented with fossil natural gas.

While Canada has only two commercial-scale projects producing renewable natural gas for vehicle fuel, and several others in development, its potential is significant.
Peter Gorrie
BioCycle June 2014, Vol. 55, No. 5, p. 53

 

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From Casino Kitchens To On-Site Digester
The casino recently installed a Grind2Energy unit that grinds the food waste and pumps the slurry into an on-site 2,000-gallon storage tank.

Preconsumer food waste from the Potawatomi Bingo Casino in Milwaukee, along with feedstock from local generators, is processed in the Potawatomi Community’s new anaerobic digester.
Dan Emerson
BioCycle May 2014, Vol. 55, No. 4, p. 40

 

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Revisiting Urban Water Infrastructure
Green storm water infrastructure, such as this rain garden in Portland, Oregon, is becoming increasingly common to capture and infiltrate rainwater. Compost is often used in the engineered soil mixes for the rain gardens.

Transitions to practices such as green storm water infrastructure, grey water use and recycling treated wastewater are becoming more common. Part II
Sally Brown
BioCycle May 2014, Vol. 55, No. 4, p. 37

 

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Florida County Taps Composting In Lagoon Remediation
An Algae Turf Scrubber (ATS) system cleans polluted water from the Lateral D Canal by pumping it over a sloping surface. Algae in the water attach to the ATS surface and grow, removing nutrients and other pollutants.

To help remediate Florida’s Indian River Lagoon — the most biologically diverse estuary in North America — an algal treatment system was installed, with algae harvested and composted.
Molly Farrell Tucker
BioCycle May 2014, Vol. 55, No. 4, p. 25

 

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Building A Biogas Highway In The U.S.
The liquid RNG produced annually at the Altamont Landfill is equivalent to 2.5 million gallons of diesel fuel. Waste Management uses the fuel in its trash collection trucks.

Studies “conservatively” estimate renewable natural gas could replace 16 percent of the 38 billion gallons of diesel fuel consumed annually by the 10 million fleet trucks and buses on American roads.
Peter Gorrie
BioCycle March/April 2014, Vol. 55, No. 3, p. 36

 

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Compost And Mulch Aid Drought Survival
The wheat yield increase across all harvests was 16 percent due to higher water holding capacity. (Image courtesy of King County Wastewater)

Composts and organics should be emphasized as much as efficient irrigation techniques to keep crops growing in these times of uncertain water supplies. Part I
Sally Brown
BioCycle March/April 2014, Vol. 55, No. 3, p. 78

 

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Expanding AD Capacity In The UK
Basingstoke, Hampshire

After raising $160 million in 2012, Tamar Energy Ltd set out on an aggressive plan to build 40 anaerobic digestion facilities over the next five years, and generate 100 MW of green electricity.
David Riggle
BioCycle March/April 2014, Vol. 55, No. 3, p. 62

 

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Universities Collaborate On Small-Scale Digester Technology
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Small-scale digester at an experimental station in Costa Rica has potential to be a model for rural communities throughout Latin America.
Katrina Mendrey
BioCycle March/April 2014, Vol. 55, No. 3, p. 58

 

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Aerobic Composting And Anaerobic Digestion
Figure 2. Aerobic and anaerobic conditions (Image courtesy of U.S. Composting Council)

Both processes manage decomposition, carried out by biological organisms transforming the materials through chemical reactions. There are pros and cons to each process, and they can be used in series to enhance the value proposition of recycling organic materials.
Craig Coker
BioCycle March/April 2014, Vol. 55, No. 3, p. 32

 

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Composting • Renewable Energy • Sustainability

 

Using Compostable Bags In Marine Mortality Composting
Figure 2. Temperature profile of test piles during the six-week compostable bag study

Experiment shows viability of using compostable bags to store and transport marine animal waste, thus reducing the biological hazards and other related complications associated with handling this material.
Mark. A. King, Michael Huitt and Michael S. Clark
BioCycle January 2014, Vol. 55, No. 1, p. 47

 

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Poultry Litter Composting On The Rise
A chicken farmer in Kentucky started making compost with its poultry litter as a base in 2010. Today, Charlie’s Compost is sold in 36 states.

A chicken farmer in Kentucky started making compost with its poultry litter as a base in 2010. Today, Charlie’s Compost is sold in 36 states.
Dan Emerson
BioCycle January 2014, Vol. 55, No. 1, p. 50

 

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Codigestion Potential At Large-Scale Wastewater Treatment Facility
The Deer Island facility has twelve 3-million gallon mesophilic digesters

A study for the Deer Island treatment plant in Boston Harbor evaluated the feasibility of codigestion, and whether the economic benefits outweigh the costs.
David L. Parry
BioCycle January 2014, Vol. 55, No. 1, p. 55

 

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Small-Scale Micropower
The 40-foot Muckbuster installed at the University of Southampton Science Park receives source separated food waste and some green waste.

Modular anaerobic digestion units the size of a shipping container are designed for breweries, stables, housing developments, hotels and remote communities.
David Riggle
BioCycle December 2013, Vol. 54, No. 12, p. 30

 

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Treated Effluent Recycling At Greek Farm School
27c

A holistic model is employed at the American Farm School in Thessaloniki, Greece to treat and recycle its solid and liquid waste.
Petras, G. Theodoridou and N. Nikolaidis
BioCycle December 2013, Vol. 54, No. 12, p. 27

 

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Getting The Public Tuned In To Food Waste Reduction
Food waste reduction

Federal initiatives and local pilot projects are part of an outreach campaign to reduce food waste in U.S. households.
Marsha W. Johnston
BioCycle November 2013, Vol. 54, No. 11, p. 17

 

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Minnesota Entrepreneur Creates Composting Infrastructure
Composting at the Good Thunder facility is done in windrows that are turned with a Vermeer elevating face unit (left). Screened compost is sold to area landscapers (right).

Full Circle Organics establishes cooperative agreements with local landowners to open and manage source separated organics composting facilities in the Midwest.
Dan Emerson
BioCycle November 2013, Vol. 54, No. 11, p. 27

 

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Framework For AD Project Development
Figure 2. Consecutive stages of anaerobic digestion

From conception through end use, a new UK publication covers key topics for setting up and operating an anaerobic digestion plant.
David Riggle
BioCycle November 2013, Vol. 54, No. 11, p. 43

 

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Odor Monitoring and Detection Tools
Human olfactory system

The complexity of the human nose and genetic coding that influences how odors are perceived by individuals makes odor monitoring and detection a complicated — but informative — task for composting facility managers. Part VIII
Craig Coker
BioCycle October 2013, Vol. 54, No. 10, p. 16

 

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California Composting Trial In Impacted Air Shed
The photovoltaic power system is comprised of panels, an inverter, a battery bank and a system of switches and timers all enclosed within a durable metal cabinet.

A low cost, low emissions composting system demonstrated in the San Joaquin Valley proved to be an effective tool in improving air quality. Part II
R. Horowitz, K. Barnes, J. Jones, P. Moon, T. Card, C.E. Schmidt and D. Noble
BioCycle October 2013, Vol. 54, No. 10, p. 33

 

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Washington State’s Revised Composting Rules
Cedar Grove Composting did not have to make design or operational changes at either of its composting facilities in Washington State to comply with the revised state rule.

TweetThe amended rule, which became effective in April 2013, specifically deals with issues seen to hinder development of the composting industry. Katrina Mendrey BioCycle October 2013, Vol. 54, No. 10, p. 26 Prior to 2003, legal standards regarding composting in the State of Washington were minimal and incorporated into the established solid waste regulations known……

 

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Green Infrastructure Incentives In Nation’s Capital
Figure 1. Example of an enhanced bioretention design with an underdrain and infiltration sump/storage layer

Innovative storm water regulation establishes private market that pays dividends to property owners for retrofits and improves Washington, DC’s waterbodies in the process.
Marsha W. Johnston
BioCycle September 2013, Vol. 54, No. 9, p. 25

 

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Biogas To Heat And Power
Sheboygan, Wisconsin’s cogeneration equipment includes ten 30 kW and two 200 kW microturbines (several shown above), four heat recovery systems and a biogas treatment and compression system (left).

A variety of turbines and IC engines are designed to operate on biogas. Both types of cogeneration equipment have unique characteristics including their electrical and thermal efficiency.
Kim Murdock-Timmerman
BioCycle September 2013, Vol. 54, No. 9, p. 59

 

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Dedicated Food Waste Digester Opens In Ontario
Harvest Power’s new anaerobic digester in London, Ontario includes three holding tanks for incoming feedstocks, a thermophilic acidification reactor that heats substrates to 131°F where they are held for three days and two mesophilic digesters.

Facility in London, Ontario is ramping up to process 71,500 tons/year of food industry residuals. Digestate will be heat-dried into fertilizer products.
Peter Gorrie
BioCycle September 2013, Vol. 54, No. 9, p. 56

 

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Big Business Of Bioproducts
Figure 2. Catalyzing cluster formation

Ohio Bioproducts Innovation Center leads the charge to commercialize biorefining.
Dennis Hall and Ron Smith
BioCycle September 2013, Vol. 54, No. 9, p. 54

 

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Advancing Organic Materials Management In Puerto Rico
The program engaged students to demonstrate organics management science and systems, as well as compost’s use to support food production (students at a high school in Vieques seen here).

Recycling partnership is building a local coalition of sustainable materials management stewards by engaging college students and other community members to foster organics diversion through composting.
R. Fernández, A. Arache, J. Alsina, J. Bonhotal, A. Arroyo-Rodríguez and C. Pacheco
BioCycle August 2013, Vol. 54, No. 8, p. 40

 

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Correctional Facility Composting In Washington State
A cart lifter is used to unload food waste into the hopper of the mixer of a new in-vessel composter installed at Cedar Creek Corrections Center.

Nine of the 12 correctional centers operated by the Department of Corrections have on-site composting programs to manage food scraps, yard trimmings and in some cases, biosolids.
Katrina Mendrey
BioCycle August 2013, Vol. 54, No. 8, p. 32

 

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Low Emissions Composting In California
Aeration was supplied by three 1.5 HP blowers, each powered by a photovoltaic system. Excess power generated during the day was stored in batteries so aeration could continue at night.

Project team evaluates positively aerated static pile method with a finished compost cap. Aeration was supplied by blowers powered by a photovoltaic system. Part I
Robert Horowitz and Dan Noble
BioCycle August 2013, Vol. 54, No. 8, p. 26

 

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Commentary: Get Zero Waste Certified!
Gary Liss

Gary Liss
BioCycle July 2013, Vol. 54, No. 7, p. 61

 

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The Art And Science Of Odor Modeling
Figure 2. Odor dispersion model (odor units/m3)

Modeling tools are risk management approaches, essentially predicting the number of occurrences in a given time period when a predicted odor level will occur. Part VII
Craig Coker
BioCycle July 2013, Vol. 54, No. 7, p. 43

 

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Managing “Leftovers” On The Way To Zero Waste
Figure 1. Schematic of an MRBT facility

Analysis clearly shows waste-to-energy facilities are not the best environmental option for managing leftover waste, pointing instead to Material Recovery, Biological Treatment.
Eric Lombardi and Kate Bailey
BioCycle July 2013, Vol. 54, No. 7, p. 48

 

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Alternate Weekly Waste Collections Work
Recyclables set out for curbside collection are segregated into multiple streams in Stirling Council, including clear glass.

In the United Kingdom, 299 out of 406 local authorities have introduced alternate weekly collection of household refuse. Many combine it with weekly collection of food waste.
David Riggle
BioCycle July 2013, Vol. 54, No. 7, p. 52

 

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Food To Fuel Demonstration At Us Air Force Academy
Figure 1. Proposed demonstration location at USAFA

Pilot project will demonstrate feasibility of converting food waste from the Academy’s dining hall into biomethane fuel. Part IV
David L. Parry
BioCycle July 2013, Vol. 54, No. 7, p. 58

 

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Bioenergy Outlook: Farm Bill Quagmire
Edward Niblock

Edward Niblock
BioCycle June 2013, Vol. 54, No. 6, p. 53

 

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Analyzing Food Waste Management Methods
Figure 1. Comparison of greenhouse gas emissions (as CO2e) from food waste management methods

Research was conducted on greenhouse gas emissions and the economics of five different options for communities to manage food waste streams — including codigestion and composting. Part III
David L. Parry
BioCycle June 2013, Vol. 54, No. 6, p. 36

 

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Odor Dispersion Fundamentals
Figure 1. Buoyant emissions plume

Dispersion is the phenomenon where odor concentrations are reduced to below recognition or detection thresholds. It is influenced by meteorological conditions and topographic effects. Part VI
Craig Coker
BioCycle June 2013, Vol. 54, No. 6, p. 26

 

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Branding Biosolids Closes The “Loop”
King County biosolids transport trucks promote Loop, featuring scenes of flowers in bloom, Washington forests or wheat fields.

King County, Washington is addressing the consequences of misinformation about biosolids by creating a brand to help communicate the facts in a consistent way.
Katrina Mendrey
BioCycle June 2013, Vol. 54, No. 6, p. 21

 

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Unraveling The Maze Of Persistent Herbicides In Compost
Green Mountain Compost conducts plant growth trials (example above) on all batches of compost now produced.

An almost year-long investigation into how a Vermont solid waste district’s compost became subjected to persistent herbicide pollution has resulted in answers — and management strategies. Part I
Nora Goldstein
BioCycle June 2013, Vol. 54, No. 6, p. 17

 

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