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Top 5 Biogas Digesters and Nutrient Recycling Units in Canada for 2025 — Expert Guide to Modular, Remote-Monitored Systems That Turn Manure into Energy, Heat and Fertilizer

Published on Monday, August 25, 2025

Anaerobic digesters, combined heat and power systems, and nutrient recovery units convert manure and organic waste into renewable biogas, on-farm heat and power, and concentrated fertilizers. In Canada the category is gaining traction because it addresses multiple farmer priorities at once: lowering energy costs, improving manure management, meeting regulatory and nutrient-registry requirements, generating new revenue through carbon credits or renewable energy programs, and producing usable fertilizer substitutes. Consumer preferences in this market skew toward smaller, modular systems that fit medium and small farms, remote monitoring and automation to reduce labor and technical risk, and solutions that integrate easily with on-farm energy programs and provincial incentive schemes. Practical buyers look for predictable uptime, clear maintenance plans, local service networks or remote support, and demonstrable nutrient recovery performance so the digestate or recovered struvite has market or on-farm value.

Quick Menu

1. Best for Large-Scale Farms

2. Best Continuous Stirred-Tank Reactor

3. Best Pilot and R&D Unit

4. Best Nutrient Recovery and Recycling

5. Best Compact/On-Farm Starter Unit

1
BEST FOR LARGE-SCALE FARMS

PlanET Biogas AD Series

PlanET Biogas AD Series

PlanET Biogas AD Series is positioned as a best-in-class modular anaerobic digestion platform for farms and industrial sites, valued for its proven full-plant solutions and flexible feedstock handling that support both high biogas yields and integrated nutrient recycling. Compared with smaller or more specialized units on this list, PlanET offers broader turnkey services and scale economies that can reduce per-unit capital and operational costs for larger projects while still interoperating with nutrient recovery add-ons.

4.3
★★★★☆

  • Modular powerhouse

  • Farm-hardened reliability

  • Modular powerhouse

  • Farm-hardened reliability

Review Summary

86%

"Users report the PlanET Biogas AD Series as a robust, modular and high-yield system that reliably produces stable methane over long-term operation; common criticisms focus on high upfront cost and the need for experienced operators for optimization."

  • Odor-taming hero

  • Robust multi-stage anaerobic digestion optimized for agricultural feedstocks.

  • Odor-taming hero

  • Robust multi-stage anaerobic digestion optimized for agricultural feedstocks.

Eco-Friendly Living

Time-Saving Convenience

PlanET Biogas AD Series is positioned as a best-in-class modular anaerobic digestion platform for farms and industrial sites, valued for its proven full-plant solutions and flexible feedstock handling that support both high biogas yields and integrated nutrient recycling. Compared with smaller or more specialized units on this list, PlanET offers broader turnkey services and scale economies that can reduce per-unit capital and operational costs for larger projects while still interoperating with nutrient recovery add-ons.

  • Modular powerhouse

  • Farm-hardened reliability

  • Odor-taming hero

  • Robust multi-stage anaerobic digestion optimized for agricultural feedstocks.

  • Modular, containerized design enables scalable capacity and phased expansion.

  • Modular powerhouse

  • Farm-hardened reliability

  • Odor-taming hero

  • Robust multi-stage anaerobic digestion optimized for agricultural feedstocks.

  • Modular, containerized design enables scalable capacity and phased expansion.

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$250,000-1,500,000 CAD

2
BEST CONTINUOUS STIRRED-TANK REACTOR

Cornerstone CSTR Digester System

Cornerstone CSTR Digester System

The Cornerstone CSTR Digester System is a market-leading continuous stirred-tank design known for dependable mixing, simple controls and predictable performance that lowers O&M risk for medium-scale operations. Financially it often delivers a faster payback than bespoke large-scale plants because of lower upfront civil works and modular expansion options, making it a cost-effective alternative to the larger turnkey suppliers on the list when steady throughput and straightforward nutrient recycling are priorities.

3.9
★★★☆☆

  • Continuous-feed pro

  • High-yield performer

  • Continuous-feed pro

  • High-yield performer

Review Summary

78%

"Buyers of the Cornerstone CSTR Digester System praise its effective continuous-stirred performance and professional supplier support for industrial-scale applications, but note it can be complex to commission and maintain, with occasional mechanical issues."

  • Mixing virtuoso

  • Uniform mixing and temperature control for high-solids and slurry feedstocks.

  • Mixing virtuoso

  • Uniform mixing and temperature control for high-solids and slurry feedstocks.

Eco-Friendly Living

Time-Saving Convenience

Skill Development & Mastery

The Cornerstone CSTR Digester System is a market-leading continuous stirred-tank design known for dependable mixing, simple controls and predictable performance that lowers O&M risk for medium-scale operations. Financially it often delivers a faster payback than bespoke large-scale plants because of lower upfront civil works and modular expansion options, making it a cost-effective alternative to the larger turnkey suppliers on the list when steady throughput and straightforward nutrient recycling are priorities.

  • Continuous-feed pro

  • High-yield performer

  • Mixing virtuoso

  • Uniform mixing and temperature control for high-solids and slurry feedstocks.

  • Engineered for reliable continuous operation and high biogas yields.

  • Continuous-feed pro

  • High-yield performer

  • Mixing virtuoso

  • Uniform mixing and temperature control for high-solids and slurry feedstocks.

  • Engineered for reliable continuous operation and high biogas yields.

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$500,000-3,000,000 CAD

3
BEST PILOT AND R&D UNIT

BioFerm EUCOlino

BioFerm EUCOlino

BioFerm EUCOlino is a compact, containerized digester aimed at small farms and decentralized nutrient recycling projects, offering rapid deployment and a footprint optimized for limited sites. Technically it trades raw capacity for fast installation and lower capex compared with full-scale systems like PlanET or Regenis, making it a strong financial choice where quick, low-risk nutrient recovery and local energy generation are required.

4.2
★★★★☆

  • Compact home-ready

  • Plug-and-play ease

  • Compact home-ready

  • Plug-and-play ease

Review Summary

84%

"The BioFerm EUCOlino is appreciated for being user-friendly and compact for farm and small-plant use, delivering consistent biogas yields; some users report concerns about component longevity and limited scalability."

  • Whisper-quiet performer

  • Laboratory-to-pilot scale digester for process development and substrate trials.

  • Whisper-quiet performer

  • Laboratory-to-pilot scale digester for process development and substrate trials.

Eco-Friendly Living

BioFerm EUCOlino is a compact, containerized digester aimed at small farms and decentralized nutrient recycling projects, offering rapid deployment and a footprint optimized for limited sites. Technically it trades raw capacity for fast installation and lower capex compared with full-scale systems like PlanET or Regenis, making it a strong financial choice where quick, low-risk nutrient recovery and local energy generation are required.

  • Compact home-ready

  • Plug-and-play ease

  • Whisper-quiet performer

  • Laboratory-to-pilot scale digester for process development and substrate trials.

  • Compact footprint with precise temperature and pH control for repeatable experiments.

  • Compact home-ready

  • Plug-and-play ease

  • Whisper-quiet performer

  • Laboratory-to-pilot scale digester for process development and substrate trials.

  • Compact footprint with precise temperature and pH control for repeatable experiments.

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$40,000-180,000 CAD

4
BEST NUTRIENT RECOVERY AND RECYCLING

Regenis RCM Digester

Regenis RCM Digester

Regenis RCM Digester stands out for integrating advanced process control and downstream nutrient recovery modules, delivering high-quality digestate and stronger nutrient valorization for industrial and municipal applications. Although its upfront costs tend to be higher than simpler compact units, Regenis often yields superior long-term returns through increased biogas production efficiency and marketable nutrient byproducts that outcompete more basic digester offerings on this list.

4
★★★★☆

  • Nutrient-recycling ace

  • Fertilizer factory

  • Nutrient-recycling ace

  • Fertilizer factory

Review Summary

80%

"Regenis RCM Digesters are commended for good process control and reliable nutrient recycling performance in wastewater and industrial settings, though several purchasers find integration and capital costs significant barriers."

  • Loop-closing wizard

  • Designed to recover nutrients and produce concentrated, fertilizer-ready effluent.

  • Loop-closing wizard

  • Designed to recover nutrients and produce concentrated, fertilizer-ready effluent.

Eco-Friendly Living

Skill Development & Mastery

Time-Saving Convenience

Regenis RCM Digester stands out for integrating advanced process control and downstream nutrient recovery modules, delivering high-quality digestate and stronger nutrient valorization for industrial and municipal applications. Although its upfront costs tend to be higher than simpler compact units, Regenis often yields superior long-term returns through increased biogas production efficiency and marketable nutrient byproducts that outcompete more basic digester offerings on this list.

  • Nutrient-recycling ace

  • Fertilizer factory

  • Loop-closing wizard

  • Designed to recover nutrients and produce concentrated, fertilizer-ready effluent.

  • Integrates solid–liquid separation and dewatering to reduce storage and transport costs.

  • Nutrient-recycling ace

  • Fertilizer factory

  • Loop-closing wizard

  • Designed to recover nutrients and produce concentrated, fertilizer-ready effluent.

  • Integrates solid–liquid separation and dewatering to reduce storage and transport costs.

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$60,000-600,000 CAD

5
BEST COMPACT/ON-FARM STARTER UNIT

HoSt Microferm Compact Digester

HoSt Microferm Compact Digester

HoSt Microferm Compact Digester is a plug-and-play micro-AD solution focused on ease of use, minimal footprint and low maintenance for small farms and on-site recycling needs. It typically offers the lowest capital and operating complexity among the listed products, making it financially attractive for operators who prioritize rapid nutrient recycling and simple biogas recovery over the higher capacity or advanced nutrient-extraction features provided by larger systems.

4.4
★★★★☆

  • Lab-bench sized

  • Rapid trial loops

  • Lab-bench sized

  • Rapid trial loops

Review Summary

88%

"HoSt Microferm Compact Digesters get high marks for reliability, low maintenance and suitability for small-to-medium sites, with users valuing build quality and simple operation; the main drawbacks are limited capacity and relatively high unit cost."

  • Mini scientist's toy

  • Small-footprint, pre-fabricated digester for farms, institutions, and small communities.

  • Mini scientist's toy

  • Small-footprint, pre-fabricated digester for farms, institutions, and small communities.

Skill Development & Mastery

Time-Saving Convenience

HoSt Microferm Compact Digester is a plug-and-play micro-AD solution focused on ease of use, minimal footprint and low maintenance for small farms and on-site recycling needs. It typically offers the lowest capital and operating complexity among the listed products, making it financially attractive for operators who prioritize rapid nutrient recycling and simple biogas recovery over the higher capacity or advanced nutrient-extraction features provided by larger systems.

  • Lab-bench sized

  • Rapid trial loops

  • Mini scientist's toy

  • Small-footprint, pre-fabricated digester for farms, institutions, and small communities.

  • Simplified operation with low maintenance and quick on-site commissioning.

  • Lab-bench sized

  • Rapid trial loops

  • Mini scientist's toy

  • Small-footprint, pre-fabricated digester for farms, institutions, and small communities.

  • Simplified operation with low maintenance and quick on-site commissioning.

Order Now

$25,000-250,000 CAD

What Research and Field Data Say About Anaerobic Digestion and Nutrient Recovery

Peer-reviewed studies and government reports, including work from Canadian agricultural research institutions and international journals, consistently show that anaerobic digestion can substantially reduce methane emissions from manure storage, produce a usable renewable gas stream for heat and electricity, and concentrate nutrients into more transportable fertilizer products. Life-cycle assessments indicate net greenhouse gas reductions when biogas displaces fossil fuel energy or when combined heat and power is used on-site. Nutrient recovery methods such as struvite precipitation or ammonia stripping produce concentrated phosphorus and nitrogen products and reduce nutrient runoff risk. Economic research highlights that outcomes depend on system scale, substrate mix, and local incentives; modular, pre-engineered systems with remote monitoring typically reduce operational uncertainty for smaller farms.

Methane reduction and biogas generation: multiple studies and Canadian extension reports show anaerobic digestion lowers methane emissions from manure storage and produces combustible biogas that can displace propane or grid electricity when used in CHP systems.

Nutrient concentration benefits: nutrient recovery processes (for example struvite precipitation) concentrate phosphorus and reduce the volume and transport cost of fertilizer, improving on-farm nutrient management.

Lifecycle and carbon accounting: life-cycle assessments report net GHG savings when captured biogas offsets fossil fuels and when digestate replaces synthetic fertilizers, supporting participation in carbon credit programs.

Economic and scale effects: academic and extension analyses find payback and profitability are sensitive to scale, substrate mix, capital costs, and available grants; smaller modular systems plus remote monitoring lower barriers for medium and small farms.

Operational reliability: field trials emphasize the value of automation and remote diagnostics to maintain stable digestion, control temperatures and mixing, and reduce downtime.

Policy and program impacts: provincial incentive programs, renewable energy tariffs and carbon markets in Canada materially improve the business case for digesters and nutrient recovery units.

In the Canadian context for 2025, the five systems listed here — PlanET Biogas AD Series, Cornerstone CSTR Digester System, BioFerm EUCOlino, Regenis RCM Digester, and HoSt Microferm Compact Digester — represent the range from farm-scale modular units to larger continuous stirred tank reactors and integrated nutrient recovery options. For most Canadian farms seeking a proven balance of scalability, field track record, and integration with on-farm energy programs, the PlanET Biogas AD Series is a strong overall choice. Cornerstone CSTR Digester System and Regenis RCM Digester are attractive where continuous stirred operations and higher throughput are needed; BioFerm EUCOlino and HoSt Microferm Compact Digester are well suited to smaller or modular installations. I hope you found what you were looking for — refine or expand your search using the site search to compare performance data, provincial incentives, or installation partners and get recommendations tailored to your province and farm size.

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