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
Ted_Niblock_1

Ted Niblock
BioCycle December 2014, Vol. 55, No. 11, p. 46

 

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Cost-Effective Odor Control
Figure 6. Stratified air management

Technical Advisor on odor from England’s Environment Agency discusses odor pollution control options for organics recycling facilities in the context of business planning, management and abatement.
Nick Sauer
BioCycle November 2014, Vol. 55, No. 10, p. 25

 

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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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Digester Closes Loop For Bay Area Hauler
Over half of South San Francisco Scavenger Company’s fleet of collection trucks is equipped with CNG engines.

A dry anaerobic digester, with two composting tunnels, was constructed at a transfer station to process 11,200 tons/year of source separated organics.
Nora Goldstein
BioCycle November 2014, Vol. 55, No. 10, p. 50

 

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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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Contaminant Removal Strategies
Figure 2. DODA BioSeparator

Separation of materials requires identifying the appropriate characteristic by which sorting can be done, and optimized. Key separation characteristics are size, weight, density, hardness, magnetism, electrical conductivity and light refraction.
Craig Coker
BioCycle June 2014, Vol. 55, No. 5, p. 46

 

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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
v

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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Legal Perspectives On Odor Impacts
BioCycle February 2014

Washington State lawyer who works with both composting facilities and impacted neighborhoods explains the legal intricacies when it comes to off-site odors.
Katrina Mendrey
BioCycle February 2014, Vol. 55, No. 2, p. 30

 

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The Compost Odor Wheel
Figure 1. Composting odor wheel

Katrina Mendrey
BioCycle February 2014, Vol. 55, No. 2, p. 34

 

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Wood Waste Grinding Innovation?
Aggregate Recycling Corporation uses the Doppstadt Kombi with a combined shredder and high speed grinder to process stumps, logs and brush.

Maine wood waste and aggregate recycler has been able to “grow with the flow” — and maintain efficiency in materials management.
Nora Goldstein
BioCycle January 2014, Vol. 55, No. 1, p. 27

 

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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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Agricultural Anaerobic Digestion In The U.S.
Figure 2. Technologies at farm AD facilities

The number of digesters at agricultural operations increased in 2012 — although less than 2 percent of dairy and swine operations in the U.S. have AD systems.
Nora Goldstein
BioCycle September 2013, Vol. 54, No. 9, p. 41

 

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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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Crop Trials Evaluate Green Bin Compost
Compost was added to strawberry beds at Heeman’s Farm in London, Ontario in early June at rates of 2 tons/acre and 4 tons/acre. The compost was rototilled into the rows, which then were covered with plastic mulch and planted.

Field trials are underway to determine whether compost made from source separated organics in the Toronto region improves soil quality and nutrient availability.
Peter Gorrie
BioCycle June 2013, Vol. 54, No. 6, p. 32

 

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Compost Integral To Sonoma Vineyard
Lou Preston of Preston Vineyards (above) in Sonoma County began making compost four years ago, pursuing an interest in biodynamic farming.

Preston Vineyards produces about 300 cubic yards/year of compost, which is applied in the fall after the October harvest.
Dan Emerson
BioCycle June 2013, Vol. 54, No. 6, p. 33

 

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Art And Science Of Digester Heat Exchange
Combined heat and power (CHP) systems produce both thermal and electric energy. The unit selected is dependent on the amount of heat required and the goals of the AD facility.

Providing sufficient thermal energy is a fundamental requirement to successful AD operation. This primer reviews temperature requirements and methods to attain and maintain recommended values.
Kevin Jankowski
BioCycle May 2013, Vol. 54, No. 5, p. 36

 

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Design Considerations In Covered Aerated Static Pile Composting
The Gore cover system uses fabric covers made of a layer of ePTFE (see close-up) sandwiched between two layers of polyester for structure.

Synthetic covers include polyethylene (PE) tarps, flexible vinyl fabrics, PE fleece blankets and expanded polytetrafluoroeth-ylene. Covers are used with both forced and induced aeration. Part III
Craig Coker and Tom Gibson
BioCycle May 2013, Vol. 54, No. 5, p. 21

 

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Anaerobic Digestion And Algal Raceway System
Figure 1. Flowchart of Novel Integrated Farm-Based Biorefinery

Michigan State University integrates AD with other biological processes to convert organic wastes into value-added fuels that are needed to enhance the economic and environmental performance of organic waste management.
Louis Faivor, Wei Liao and Dana Kirk
BioCycle May 2013, Vol. 54, No. 5, p. 29

 

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Codigestion Research Builds Facility Operator Confidence
Figure 2. Nutrient limits in food waste digestion

Research can improve the economic viability of codigestion facilities and ease concerns of managers of water reclamation facilities about receiving additional organic waste and the potential for digester upsets. Part II
David L. Parry
BioCycle May 2013, Vol. 54, No. 5, p. 32

 

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Illinois Compost Manufacturer Controls The Elements
To better control the composting process, a ClearSpan fabric building was installed. The building accommodates four 450-foot long windrows.

LHF Compost, Inc. in Peoria processes yard trimmings, food waste and manure. Recently, it erected a fabric building, and does active composting under roof.
Nora Goldstein
BioCycle April 2013, Vol. 54, No. 4, p. 26

 

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Food Waste Diversion At International Airport
PDX provides a central collection point for the food waste from the various restaurants. Diverted organics represent about 6 percent of materials recycled at the airport.

After significant program tweaks, including an employee rewards program, the Portland, Oregon International Airport breaks its previous records for food waste diversion.
Maia Nativ
BioCycle April 2013, Vol. 54, No. 4, p. 31

 

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Rural Communities And Single Stream Adoption
The typical rural community in New England has community transfer stations where there is no curbside recycling or trash collection. Households bring their recyclables to dropoff centers where they sort them by material.

Survey data shows households prefer transporting recyclables to the transfer station and sorting them there, and favor programs that increase the community recycling rate.
Christopher Wright and John M. Halstead
BioCycle April 2013, Vol. 54, No. 4, p. 40

 

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Implementation Realities Of Organics Ban In Massachusetts
Figure 1. Food waste generators in Massachusetts

Anticipated disposal ban on commercial and industrial organics is expected to be added to the state’s existing ban structure. The more pressing issues are ensuring robust generator training and hauling and processing capacity are in place to manage the materials. Part III
Zoë Neale
BioCycle April 2013, Vol. 54, No. 4, p. 34

 

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Improving Economics Of Codigestion
Figure 1. Organic waste tipping fee required based on electricity cost

The economics of an organic “waste to energy” facility are strongly dependent on the waste characteristics,
and costs of digestion and solids processing after digestion. Part I
David L. Parry
BioCycle April 2013, Vol. 54, No. 4, p. 48

 

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Residential Food Waste Collection In The U.S. — BioCycle Nationwide Survey
U.S. Food waste collection programs by number of municipalities and number of households

Growth of residential food waste collection in the U.S. is steady, with existing programs seeking to increase household participation.
Rhodes Yepsen
BioCycle March 2013, Vol. 54, No. 3, p. 23

This expanded online version included expanded tables with additional program details as well as additional information about municipal programs.

 

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Bioenergy Potential In California’s Food Processing Residues
Figure 1. California food processing facilities by county

Fruit and vegetable processing facilities and wineries are the largest sources of high moisture solid residues potentially available as bioenergy feedstocks.
Ricardo Amón, Mark Jenner and Stephen Kaffka
BioCycle March 2013, Vol. 54, No. 3, p. 47

 

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Integrating Greenhouse Facilities With AD Bioenergy
In the greenhouse, crop yield is strongly influenced by light, heat, water and nutrients. An AD bioenergy system can positively influence all of these factors.

To move forward with aaerobic digestion bioenergy projects, developers must find additional sources of bankable revenue such as greenhouse crop production.
Charles Egigian-Nichols
BioCycle March 2013, Vol. 54, No. 3, p. 40

 

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State Fertilizer And Soil Amendment Rules
BioCycle West Coast Conference 2013 Preview

Departments of Agriculture in every state regulate fertilizer and soil amendment sales/distribution, including compost and digestate products. Here’s a summary of the latest rule developments, FAQs and more.
Ron Alexander
BioCycle March 2013, Vol. 54, No. 3, p. 44

 

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Pipe And Blower Fan Fundamentals In ASP Design
Facilities can test various piping system designs, such as entrenching the pipes as shown in this pilot test (top). ASP composting designs most often use centrifugal blowers (bottom), as these are recommended for systems with back pressure caused by having long runs of piping or ducting

Effectiveness of aerated static pile composting depends largely on the aeration system, which can comprise a large portion of the facility’s cost and energy use. Part II
Tom Gibson and Craig Coker
BioCycle February 2013, Vol. 54, No. 2, p. 24

 

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Digester Taps Thermal Energy To Grow Greens
Neighborhood Farm is able to plant lettuce and cut greens for sale within three weeks. Radiant heat keeps the soil at 70° to 75°F

Vermont farm adds new revenue stream by installing greenhouse heated with thermal energy from the digester engine.
Nora Goldstein
BioCycle February 2013, Vol. 54, No. 2, p. 33

 

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The Massachusetts Waste Conundrum

With landfill capacity expected to decline to 600,000 tons in 2020 and combustion capacity remaining flat, a gap begins to emerge that may exceed 2 million tons a year by 2020 — depending on how successful the state is at improving the diversion rate. Part II
Zoë Neale
BioCycle February 2013, Vol. 54, No. 2, p. 35

 

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Bioenergy Policy Outlook For 2013
BioCycle Energy

New Production Tax Credit language in the last-minute tax compromise passed by Congress on January 1st is helpful to bioenergy projects, including anaerobic digesters.
Edward Niblock
BioCycle January 2013, Vol. 54, No. 1, p. 49

 

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Natural Lawn And Crop Care With Composts And Teas
Compost tea must be applied within four to six hours after removing oxygen. Dane Terrill uses a diaphragm pump and does the application with a spray gun.

Flowerfield Enterprises, an organic lawn care and agricultural services company, mixes high quality thermophilic compost and vermicompost to produce tea with the best attributes.
Rhonda Sherman
BioCycle January 2013, Vol. 54, No. 1, p. 44

 

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