EnviroBox Biogas is a complete anaerobic-digestion facility built from nine modular ASTM A572 Gr. 50 steel tanks, integrated CHP, and a full SCADA package — delivered as one engineered platform. Receiving through energy generation and digestate management, scaled to your feedstock.
EnviroBox Biogas isn't a digester — it's a complete renewable-energy facility. Receiving, equalization, primary and secondary digestion, gas buffer, digestate storage, CHP, and SCADA — engineered as a single modular platform shipped from Canton, Ohio.
Every tank is modular ASTM A572 Gr. 50 carbon steel with a 3-coat, spark-tested HP epoxy interior lining specified to NACE SP0108 / AWWA D103 — and to the actual chemistry of digester service, not a generic potable-water default.
A skid-mounted biogas-flex CHP engine converts methane into 90–540 kWh/day of electricity plus 100–600 kWh(th)/day of recoverable thermal energy that feeds the digester heating loops. Combined efficiency 78–85%.
Tanks ship as modular panels. CHP arrives as a skid. Controls arrive as a single PLC cabinet. Set on a prepared grade pad, connect feedstock, electrical, and gas — your AD facility is operational. The EnviroBox advantage, applied to renewable energy.
Nine modular tanks. Five HDPE-domed digesters. One integrated CHP skid. Drag to rotate the system, scroll to zoom — every tank in the scene matches a stage in the process below.
Every stage of biogas production lives in a purpose-built EnviroBox modular steel tank. All units are constructed from ASTM A572 Gr. 50 steel with 3-coat HP epoxy interior lining per NACE SP0108 / AWWA D103.
Raw material intake and storage buffer. Gravity or pump-fed up to 2,500 GPM with ultrasonic level transmitters and SCADA-integrated high/low alarms.
pH adjustment, dilution, and feedstock homogenization. Auto-controlled NaOH/H₂SO₄ metering via in-line pH probe with 1–3 day equalization buffer at 1,300–5,300 GPD.
Main anaerobic digestion at mesophilic (95–99°F) or thermophilic (126–131°F) temperatures. 20–30 day HRT, OLR of 0.06–0.19 lb VS/ft³/day, producing ~1,800–5,300 ft³/day biogas per unit.
Extended hydraulic retention with +15–35% additional biogas recovery. Dual-purpose secondary digestion + biogas buffer providing 2–6 hours uninterrupted CHP runtime per unit. 55–72% system-wide VS reduction.
Peak-shaving gas storage providing 4–8 hours of CHP runtime. HDPE double-membrane dome rated −40°F to +165°F with automated pressure management and a full gas-conditioning train.
60+ day liquid digestate holding for nutrient management. Class B or Class A biosolids with biofertilizer value of ~200–400 lb N/acre-ft. Screw-press separation produces low-odor compost at ~0.5–2 tons DM/day.
The integrated combined-heat-and-power package converts biogas into 50–250 kW of electrical output and 100–600 kWh(th)/day of recoverable thermal energy. Jacket water at 160–180°F feeds back into all four digester heating loops — driving combined efficiency to 78–85%.
Revenue streams include on-site offset, RNG premiums ($15–$30/MMBtu + D3 RINs), tipping fees, and carbon credits — with IRA §45Z stacking on top.
120V / 240V / 480V 3-phase. Net of 8–15% parasitic. Grid-tie with IEEE 1547 utility disconnect.
Jacket water plus an additional 30–50 kW from the exhaust flue-gas heat exchanger.
NSPS 40 CFR §60 Subpart JJJJ compliant; CARB compliant; NOx <1.0 g/HP-hr. Acoustic enclosure <70 dBA at 50 ft.
Automatic transfer switch. Skid-mounted CAT or Cummins biogas-flex engine. Black-start option available.
Anywhere a high-strength organic waste stream meets a need for renewable thermal or electrical energy — EnviroBox Biogas turns the liability into a revenue line.
Brewery and distillery process wastewater, dairy CIP and whey, confection and bakery, beverage rinse — high-BOD streams that generate gas reliably.
High BODManure-only and co-digestion herds, cheese and yogurt processors, row-crop residue. Nutrient management plan support to NRCS 632 included.
RNG-ReadySource-separated organics, supermarket and institutional food waste, OREX-style pulp slurries. Receive a slurry feedstock — pay tipping back into project economics.
Tip Fee IncomeSidestream organics ingestion at municipal POTWs. Boost gas production from existing digesters or add modular AD capacity without rebuilding the plant.
POTW RetrofitGreenfield RNG project sponsors, ESG-program corporate offtakers, and LCFS-targeting developers. PE-stamped, JJJJ-compliant, D3 RIN eligible by design.
D3 / LCFSEvery EnviroBox Biogas system is designed, fabricated, and documented for one outcome: the project gets permitted, the AHJ signs off, the interconnect is approved, and the engine fires on schedule. That posture is built into the design — not negotiated at startup.
What permitting agencies, the local utility, and the insurance carrier want to see — coordinated hydraulic and gas calcs, PE-stamped drawings, NACE-anchored coating spec, ASME-listed appurtenances, JJJJ-source-tested engine, NRCS-aligned nutrient plan — is in the submittal package by default.
From a single-train pilot to a six-train production facility — the EnviroBox Biogas platform scales by adding primary and secondary digesters to the same modular footprint. Pick the tier; we'll size the package.
A single-train pilot or a small dairy / brewery / hauler ingest point. Two primary digesters plus two secondary expansion tanks for HRT and buffering — sized for 1,300–2,800 GPD feedstock and 90–270 kWh/day of generation.
The workhorse configuration. Four primary digesters and two secondary expansion tanks accommodate co-digestion of dairy manure with food-waste slurries, brewery wastewater with whey, or POTW sidestream blending. Sized for 2,800–4,200 GPD.
Six primary digesters and three secondary tanks for the largest single-pad EnviroBox Biogas configuration. Sized for 4,200–5,300 GPD, with output suitable for RNG conditioning to pipeline-quality gas or 250 kW of continuous CHP for a campus load.
The complete EnviroBox Biogas system is designed to hit the following performance targets across operating modes and typical feedstock blends — primary digestion through CHP output.
Tanks are fabricated, lined, and quality-controlled at our Canton, Ohio facility. CHP skids and PLC cabinets arrive integrated and factory-acceptance-tested. They ship complete on flatbed and arrive ready to set on your prepared grade pad.
Delivery, installation, and commissioning available in all 50 states and Canadian provinces. PE stamps and submittal coordination for the AHJ, utility, and air permitting authority in every jurisdiction we ship to.
The more we know about your waste stream — flow rate, total solids, volatile solids, primary constituent — the faster we can return a sized system, a CAPEX range, and a payback estimate. Best read is fine; we'll back-check the assumptions during scoping.
Thanks. We'll be back with you within one business day. If your project schedule is tighter than that, call us directly at (330) 970-6030 and ask for the Biogas desk.