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Archive for the ‘Organics’ Category

16 September 2016

Landfill industry changes – how will they affect optimizing operations?

I have been thinking a lot about how things have changed in the landfill industry and how these changes are affecting approaches to optimizing landfill operations. I thought others in the industry might be interested in my ruminations. Please feel free to reply back with other changes you have noticed. Options for increasing landfill densities…

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Categories: Biogas and Landfill Gas, Environmental Planning & Compliance, Landfill Engineering and Design, Organics, Solid Waste
Posted By Rob Sochovka at 10:14 AM  |  1 Comment on Landfill industry changes – how will they affect optimizing operations?

11 May 2016

Time for a change? Lessons learned while transitioning from windrow operations to aerated static pile composting

Last year I wrote a blog post about helping a Waste Management landfill in northern California convert a classic windrow composting facility (in which compost is piled up outdoors and periodically turned) to a covered aerated static pile (CASP) composting facility, where larger piles undergo aeration using on-grade (or in-floor) piping. Fast forward a year,…

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Categories: Air Quality, Landfill Engineering and Design, Organics, Solid Waste, Transfer/Recycling/Processing Facilities
Posted By Jessica Bernardini, PE at 11:30 AM  |  No Comments on Time for a change? Lessons learned while transitioning from windrow operations to aerated static pile composting

18 March 2015

What’s trending in landfill gas utilization?

In November 2014, I had the honor of sharing the podium with 140 of the country’s leading experts on LFG and leachate at the Environmental Research & Education Foundation (EREF) summit, called Leachate & Gas Management – Regulatory & Operational Perspectives. It was easily the best technical exchange combining LFG and leachate information I have…

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Categories: Alternative Energy, Biogas and Landfill Gas, Organics, Solid Waste
Posted By Michael Michels, PE at 8:00 AM  |  2 Comments on What’s trending in landfill gas utilization?

17 September 2014

Tips on obtaining clean air permits for anaerobic digestion facilities

I’ve recently been deeply involved in permitting efforts for several dry anaerobic digestion (AD) facilities for Zero Waste Energy, LLC (ZWE). I would say that after preparing four permits in California (and successfully obtaining all four) and going after one more permit in Alabama, I have gotten a real window into what regulators are looking…

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Categories: Air Quality, Alternative Energy, Biogas and Landfill Gas, Environmental Planning & Compliance, Organics
Posted By Maria Bowen at 12:17 PM  |  No Comments on Tips on obtaining clean air permits for anaerobic digestion facilities

28 May 2014

There’s gold in them thar compost piles – pilot study helps convert to a covered aerated static pile to increase compost throughput

I’ve been working for the past few years with a Waste Management landfill in northern California to help convert a classic windrow composting facility (in which compost is piled up outdoors and periodically turned) to a covered aerated static pile (CASP) composting facility, where larger piles undergo aeration using on-grade piping. The landfill currently produces…

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Categories: Landfill Engineering and Design, Organics, Solid Waste, Transfer/Recycling/Processing Facilities
Posted By Jessica Bernardini, PE at 11:15 AM  |  No Comments on There’s gold in them thar compost piles – pilot study helps convert to a covered aerated static pile to increase compost throughput

31 July 2013

Is your anaerobic digestion system wet or dry? How categorizing anaerobic digester systems helps you understand features, constraints, and end products

An earlier blog post in this series discussed the many different parameters associated with anaerobic digesters (AD), and today I want to discuss how understanding the parameters that categorize the AD system provides an understanding of operational features, development constraints, as well as the end-products produced by the system. Really the starting point or main…

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Categories: Organics, Solid Waste
Posted By Prentiss Shaw, PE at 12:49 PM  |  No Comments on Is your anaerobic digestion system wet or dry? How categorizing anaerobic digester systems helps you understand features, constraints, and end products

17 July 2013

Creating organic feedstock for energy recovery – the basics on organics separation, collection, and processing

I have been involved in the transfer and recycling business for a very long time, and I’m finding the new push for organics recovery an interesting new wrinkle. From what I gather, there’s a lot of interest, but also many questions, so I thought I would put down a few of my thoughts (with a…

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Categories: Organics, Transfer/Recycling/Processing Facilities
Posted By Ernest Ruckert, PE at 12:33 PM  |  1 Comment on Creating organic feedstock for energy recovery – the basics on organics separation, collection, and processing

5 June 2013

Organics anaerobic digester = septic tank?

Is an organics anaerobic digester equal to a septic tank? Close, but no cigar – critical feedstock and system parameters to consider when selecting a system Recently someone asked me if a septic tank was an anaerobic digester. I responded yes, because the decomposition process in a septic tank is anaerobic. He then asked, “If…

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Categories: Organics
Posted By Laura Hammerer at 11:00 AM  |  11 Comments on Organics anaerobic digester = septic tank?

22 May 2013

Organics management– great concept, but it still comes down to economics

Think fast – what’s the topic that nearly every solid waste, composting or recycling conference has focused on for the past two years? No contest – it is the organics fraction of the waste stream. Even the “Game Changers” panel discussion at the 2012 WasteCon conference had a lot of discussion on organics and how…

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Categories: Organics, Solid Waste
Posted By Prentiss Shaw, PE at 11:00 AM  |  No Comments on Organics management– great concept, but it still comes down to economics

27 February 2013

Organics diversion – how to make sure it benefits your bottom line

Everyone is pretty much agreed that organics diversion is going to have a real impact on landfills. However, the extent of the impact, for example on landfill gas (LFG) flow, remains somewhat of a mystery. The bottom line is that a decrease in organics will decrease LFG flow. For some facilities with excess LFG, or…

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Categories: Biogas and Landfill Gas, Organics
Posted By Daryl O'Dell, PE, P Eng at 3:52 PM  |  1 Comment on Organics diversion – how to make sure it benefits your bottom line