Commercial Composting Solutions

Optimization is Our Specialty

We provide commercial composting solutions and compost facility designs that maximize space and operating efficiency, with technology and equipment that maximizes throughput and minimizes odors.

30+ years designing innovative composting facilities

Municipal, agricultural, and commercial composting facilities of all sizes

Systems that pay for themselves through operating efficiency

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Facility Types

Aerated Static Pile (ASP)
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Turned Aerated Pile (TAP)

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Earth Flow + Secondary ASP
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Earth Flow
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Tunnel Systems

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Pipe on Grade ASP

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Sparger Aerated Static Pile (ASP)

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Aerated Static Piles (ASP)

Odor Control

Capacity

Process Time

2,000+ T/year

60+ Days

Odor Control

Capacity

2,000+ T/year

Processing Time

60+ Days

Aerated Static Pile composting is a simple and efficient way to compost challenging feedstocks like food waste, biosolids, and manures. Well-designed aerated composting systems manage the oxygen and temperature levels in the piles to speed up the process while reducing material handling costs and controlling odors. We offer a variety of ASP systems for the full spectrum of composting facilities and budgets.

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Turned Aerated Pile (TAP)

Odor Control

Capacity

Process Time

2,000+ T/year

45+ Days

Turned Aerated Piles (TAP) are the fastest way to achieve large scale composting. Advanced aeration combined with specialized turning equipment increases material handling speeds by roughly 10 times and homogenizes material, resulting in a faster more efficient process.

Odor Control

Capacity

10,000+ T/year

Processing Time

45+ Days

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Tunnel System

Odor Control

Capacity

Process Time

2,000+ T/year

60+ Days

The CompoBox™ Tunnel System is a completely enclosed Aerated Static Pile composting system, with all emissions captured and treated in a biofilter or geomembrane cover. Automated irrigation and hydraulic doors simplify operations and speed up the composting process.

Odor Control

Capacity

2,000+ T/year

Processing Time

60+ Days

Learn More About Tunnels
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Earth Flow

Odor Control

Capacity

Process Time

50 - 5,000 T/year

45+ Days

Odor Control

Capacity

50 - 5,000 T/year

Processing Time

45+ Days

The Earth Flow™ composting system is an award-winning automated compost mixing and aeration system built into a 20ft or 40ft shipping container or a larger site built vessel, proven for over 15 years to be effective, long-lasting, and easy to operate.

Learn More About Site Built Earth Flow

Mechanical Biological Treatment

Odor Control

Capacity

Process Time

2,000+ T/year

30+ Days

Odor Control

Capacity

2,000+ T/year

Processing Time

30+ Days

As landfills fill up and become increasingly difficult to permit, many facilities throughout the United States are following in the footsteps of Europe, turning to Mechanical Biological Treatment (MBT) to recycle and reduce landfill use by as much as 80%.

Learn More About MBT Processing
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"I first met Jeff around 1992, when my agency assigned me to find out why a major composting operation in our jurisdiction was creating odors that could be smelled 11 miles away. At that time Jeff was the manager of the LRI facility in Gig Harbor, WA. Jeff took me under his wing and taught me the basics of composting, and how to do it odor free. As the last two decades have gone by, Jeff became the go-to guy in the State of Washington, whenever I needed to learn something about composting not yet covered in the literature. My agency has never had to write a nuisance ticket on ANY of the facilities he was involved with. Lenz Composting, the composting factory at LRI Puyallup, and LRI Gig Harbor facility all have clean records with us. If you have two dozen suddenly deceased cattle to compost, (all in one pile), there is no one else I would trust to do the job. A couple of winters ago Jeff did just that at Lenz Composting, ODOR FREE! I’ve seen it, I’ve smelt it, and my agency has pictures to prove it.”

- Claude Williams, PE; Puget Sounds Clean Air Agency, Seattle WA, psclearair.org

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