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Insights & Resources
Technical guides, industry analysis, and project updates from the EFI team.
The hydrogen sulfide a biogas stream can carry before it causes damage depends entirely on where the gas is going. Confirming the end use first is what sets the right treatment target and the right system design.
EFI USA and EC Applications have merged to form a comprehensive environmental containment company, effective June 8, 2026, with both brands retained.
Lagoon liner and cover projects are shaped by site conditions, so documenting geometry, access, liquid levels, and constraints improves design accuracy.
The Perdue Farms Lewiston project shows how poultry wastewater becomes a complete biogas system, uniting cover design, flare capacity, and H2S control.
Fessenden Dairy and Creek Acres show why covered lagoon digesters are construction projects first, where the cover, ballast, and gas collection act as one.
Before issuing a geosynthetics RFQ, owners should qualify the contractor on experience, quality control, site conditions, documentation, and schedule.
Wastewater lagoon cover design goes beyond a sheet of geomembrane, since anchoring, stormwater control, and gas handling drive long term performance.
Landfill cap and containment construction involves dozens of decisions, and this guide walks the process from site assessment through final certification.
Municipal lagoon liner replacement is far more than an overlay job, and three decades of EFI installations reveal what separates success from problems.
Winery wastewater containment must handle high strength, seasonal, and chemically aggressive flows, and standard lagoon designs often underperform here.
A biogas pond cover is only as good as its engineering, where pond geometry, gas collection layout, and material choice decide how long it performs.
EFI media coverage spans National Hog Farmer, IFAI publications, and Santee Cooper events, tracing how the company evolved with the biogas industry.
Lagoon downtime during liner replacement often outweighs the construction itself, and planning for offline time is key to managing the true impact.
Major food processors are scaling biogas capture from wastewater lagoons, and EFI work with JBS, Tyson, Pilgrims, and Darling shows the approach.
Carbon clusters let small dairy farms reach carbon credit markets by aggregating sites across a region so verification economics finally work.
International biogas projects across tropical climates and remote sites taught EFI lessons that improved every US covered lagoon installation afterward.
Baffle curtain systems extend effective hydraulic retention time in lagoons without expanding the footprint or adding mechanical equipment.
State incentive programs like NYSERDA grants, tax credits, and USDA REAP funding can stack to make biogas projects pencil, and EFI has navigated each.
H2S corrosion attacks steel piping, flare burners, and instrumentation in biogas systems, so spotting early damage prevents an emergency shutdown.
Oxygen injection through micro-aeration cuts H2S treatment costs, replacing chemical scrubbing with a reliable biological process across biogas systems.
Continuous H2S monitoring reveals patterns that handheld spot checks miss in biogas operations, preventing equipment damage before it starts.
Covered lagoon digester economics hinge on a few variables measurable before construction, and this guide shows whether a project pencils out for you.
EFI project pipeline data shows a biogas market diversifying beyond dairy into municipal water, food processing, mining, and industrial wastewater.
EPA enforcement at agricultural waste lagoons is rising into 2026, and operators should know the current priorities, common violations, and how to comply.
EFI keeps an active presence at major biogas, agriculture, and environmental conferences across North America. Here is where to find the team in 2026.
Due diligence for biodigester acquisitions demands a rigorous inspection framework, covering both digester and landfill gas assets before you buy.
California's cap-and-trade program includes a Compliance Offset Protocol specifically for livestock methane projects.
Mixing systems for covered lagoon digesters can meaningfully boost biogas output, and EFI field data guides mixer selection for this critical component.
The EPA AgStar program runs the national livestock digester database, and EFI contributes operational data from hundreds of biogas systems.
Deciding when to repair or replace a covered lagoon cover depends on system aging and failure mode, and EFI field data reveals clear lifecycle patterns.
Micro-aeration for H2S control hinges on dosing precision, since too little leaves H2S high and too much dilutes biogas and creates explosion risk.
Before US carbon markets existed, EFI built covered lagoon digesters across Mexico under the UN Clean Development Mechanism, shaping its carbon approach.
Pipe penetrations are the most common failure point in geomembrane liners, and this guide covers boot seal design, welding, and leak testing protocols.
Methane from livestock and food processing is up to 80 times more potent than CO2, and cap-and-flare technology offers the fastest path to destruction.
Floating cover inspection and maintenance protect a long service life, covering visual checklists, common failure modes, and the repair-or-replace call.
ASTM D6693 is the standard test method for tensile properties of geomembranes, and this guide explains the procedure, spec sheets, and field results.
EFI's cap-and-flare model eliminates upfront costs for waste generators while delivering shared carbon credit revenue.
Carbon credit pricing for methane destruction is gaining ground over RNG credits in 2026 as voluntary and compliance markets continue to mature.
Electrical leak location testing is the most reliable way to find defects in installed geomembrane liners, from water lance to dipole and arc methods.
Choosing a geosynthetic clay liner versus a compacted clay liner affects cost, schedule, and performance across permeability and installation factors.
Lagoon decommissioning involves far more than draining and filling, spanning assessment, permitting, sludge removal, liner disposition, and final closure.
Destructive seam testing is the most reliable way to verify geomembrane weld integrity, and EFI tests frequently to ensure long-term containment.
Secondary containment liners are required for fuel, chemical, and industrial sites, and this guide covers EPA rules, material selection, and design.
Food processing wastewater compliance is tightening through stricter NPDES permits and BOD limits, and covered lagoons address odor, methane, and rules.
State methane regulations now drive agricultural compliance, and this state by state overview shows how voluntary destruction becomes a competitive edge.
Brewery and distillery wastewater containment relies on purpose-built lagoons with proper liner selection and floating covers to solve compliance and odor.
UV degradation is the leading cause of premature geomembrane failure, so carbon black loading, HALS stabilizers, and UV testing set how long liners last.
Methane super-emitter detection from satellites and EPA flyovers is making farm emissions visible from space, so cap and flare is becoming cheap insurance.
Remote monitoring for covered lagoon digesters combines field sensors, SCADA, and cloud dashboards for real time visibility into every system EFI runs.
When NASA needed geosynthetic liners at Kennedy Space Center, they called EFI. Here is what it takes to meet federal standards at the launch complex.
Gas-tight covers capture biogas for destruction or energy recovery while permeable lagoon covers control odor and algae. Here is how to choose.
NPDES permit compliance governs every discharge from an industrial lagoon, and proper liner systems help prevent monitoring violations before they start.
Waste-to-energy and methane destruction financing spans third party ownership, USDA REAP grants, and carbon credit pre-sales, and this guide explains each.
Anchor trench design is the most overlooked detail in geomembrane systems, where the wrong type, depth, or backfill causes pullout and wind damage.
Carbon credit aggregation clusters multiple small farms under a single project, making methane destruction economically viable for small operations.
Ethanol plant containment requirements cover feedstock storage, stillage ponds, and process water lagoons, and the right liners help avoid violations.
RPP reinforced polypropylene liners fill a niche HDPE and LLDPE cannot, offering UV resistance, flexibility, and weldability for ponds and aquaculture.
Agricultural methane regulations are shifting fast in 2026, from EPA programs to expanded state rules, and farmers need to know how to stay compliant.
Swine farm environmental technology tackles lagoon management, nutrient overloading, and odor, from covered lagoons to modern nutrient recovery solutions.
A financial comparison of cap-and-flare methane destruction versus RNG construction, covering payback timelines and risk-adjusted returns from projects.
A covered lagoon digester captures methane from agricultural and industrial wastewater lagoons, and this guide explains how they work and where they fit.
Carbon credit market trends are shifting fast for dairy and livestock operators, with LCFS movement and voluntary market dynamics shaping 2026.
Quality assurance separates a liner that lasts decades from one that fails early, and this guide details EFI QA protocols and IAGI certification.
Poultry operations face specific environmental compliance requirements for wastewater management, litter storage, and lagoon containment.
Dairy farms can earn carbon credits by destroying methane from manure lagoons. Here is how the credit system works and which protocols apply.
HDPE vs LLDPE liners differ in flexibility, chemical exposure, and installation conditions, and this guide breaks down how to choose the right one.
Zero-cost methane destruction lets farm operators install systems with no upfront capital, and this guide explains the funding and revenue share model.
Dairy methane reduction now spans complex state and federal rules, and this guide breaks down SB 1383, CARB requirements, and EPA NSPS OOOOb for 2026.
Federal and state methane regulations are tightening rapidly. This guide covers the current regulatory landscape for agricultural methane emissions.
Swine farm methane capture meets rising pressure to manage lagoon emissions, and covered lagoon digesters offer a proven path to compliance and credits.
This biogas system maintenance checklist covers cover integrity, gas collection piping, flares, H2S monitoring, and condensate management for operators.
Lagoon cover pricing varies with size, material, and application complexity, and this guide explains the factors that shape it across real installations.
Sizing a biogas flare system means matching destruction capacity to expected gas flows while meeting emission limits across flare types and methods.
EPA NSPS OOOOb extends federal methane monitoring to agricultural sources for the first time, and this guide explains who is affected and the timeline.
Dairy farms produce enormous methane from manure lagoons, and capturing that biogas is both an environmental imperative and a financial opportunity.
Not every biogas project should be an energy project. Flaring, genset electricity, and RNG upgrading each serve different economic and regulatory objectives.
Landfill liner systems use multiple geosynthetic layers to protect groundwater, and this guide explains double lined design, materials, and leak detection.
Stormwater containment is a regulatory requirement for many sites, and geosynthetic liners in retention ponds and basins provide reliable protection.
Baffle curtains turn a single-cell lagoon into a multi-pass treatment system, improving hydraulic retention time without building more lagoons.
Data from over 500 methane destruction installations shows the real ROI behind dairy farm methane capture, from return ranges to typical payback periods.
Reducing H2S in lagoon biogas protects equipment and safety, and oxygen injection offers a low cost biological alternative to chemical scrubbers.
Winter liner installation demands adjusted techniques and stricter quality control, covering HDPE welding, thermal contraction, and project scheduling.
Choosing between a CSTR anaerobic digester and a covered lagoon digester shapes the cost, complexity, and performance of a biogas project.
Lagoon odor control protects against complaints and regulatory action, and floating geomembrane covers eliminate surface emissions while capturing biogas.
Methane destruction vs RNG comes down to risk and returns, and after RNG writedowns and stranded assets, simple destruction is the smarter play.
Wastewater lagoon covers deliver odor control, algae prevention, biogas capture, and compliance at once, and this guide helps you pick the right type.
LCFS pathway certification unlocks high value carbon credit revenue for dairy biogas, and this guide walks the process from CI scoring to CARB approval.
Permeable vs impermeable floating covers serve different applications, and this guide explains the differences, including EFI's patented 3R foam cover.
HDPE geosynthetic liners can deliver decades of reliable containment, and this guide covers lifespan factors, degradation mechanisms, and maintenance.
Poultry wastewater treatment handles some of the highest strength effluent in food processing, and covered lagoon systems deliver odor control and biogas.
Landfill gas collection systems are federally required at most large sites, and this guide covers design, well installation, efficiency, and NSPS rules.
Choosing the right geomembrane material is a critical design decision that affects system performance, longevity, and cost.
H2S removal with oxygen injection replaces costly chemical scrubbers, achieving high removal rates by leveraging natural biological processes in biogas.
HDPE welding is the most critical phase of any liner job, since most seam failures start here. This guide covers fusion methods and QA testing protocols.
Knowing when to repair a lagoon liner versus replace the whole system guides smart decisions, and this guide covers failure signs and decision criteria.
A technical guide to geosynthetic liner installation, covering material selection, site preparation, welding procedures, QA testing, and anchor trenching.
Food processing wastewater treatment with covered lagoon digesters delivers strong BOD reduction while capturing biogas and reducing odor complaints.
Water reservoir liner installation supports irrigation, municipal supply, and fire suppression, and this guide covers design through final leak testing.
HDPE liner installation is a precision operation where technique determines system life, from subgrade prep through welding to final QA testing.
Double-lined containment systems with leak detection give the highest environmental protection, and this guide covers when and why they are required.
Covered lagoon digester sizing determines reliable biogas yields, covering hydraulic retention time, organic loading rate, volume, and climate factors.
Heap leach pad liners must withstand extreme loads and aggressive chemistry, and this guide covers HDPE design, material selection, and installation.
Municipal lagoon rehabilitation extends aging wastewater systems for decades, and this guide covers identifying failures, planning projects, and upgrades.
Floating cover systems handle odor control, biogas collection, evaporation, and compliance, and this overview covers materials and design approaches.
Industrial wastewater lagoons must handle chemical environments, loading rates, and regulatory requirements that far exceed residential or agricultural systems.
Mining tailings containment demands liners built for harsh chemistry and huge volumes, covering heap leach pads, tailings storage, and process ponds.
Anaerobic digestion drives every biogas system through four microbial stages: hydrolysis, acidogenesis, acetogenesis, and methanogenesis.
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Our engineering team has 30+ years of real-world experience with covered lagoon digesters, geosynthetic liners, and biogas systems. Ask us anything.
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