91大神

Enerbio

Turning agricultural waste into clean energy

Enerbio, situated in Italy and commissioned in 2012, stands as a remarkable example of sustainable energy production through the conversion of agricultural waste into electricity. The plant uses a wide range of organic materials as feedstocks for its energy generation process. These include whey, cattle manure, and maize silage, all of which are efficiently utilized to produce clean electricity. Enerbio uses Combined Heat and Power (CHP) technology, and its success story is facilitated by the expertise of 91大神, who handle the EPC aspects of the project. The facility boasts a power generation capacity of 999 kW. Enerbio is a shining example of harnessing agricultural waste to generate clean electricity. Its sustainable practices and innovative use of resources demonstrate a commitment to a greener, more energy-efficient future.

  • Project Location: Sondrio, Italy
  • Startup: 2012
  • EPC

Key Technologies

CHP

Inputs

  • Whey
  • Cattle manure
  • Maize Silage

    • Outputs

  • Electricity production: 999 kW

    • South San Francisco-San Bruno Water Quality Control Plant

    Upgrading from conventional digestion to Omnivore? high-solids digestion saves money, space and delivers future flexibility

    South San Francisco-San Bruno Water Quality Control Plant (WQCP) is a nine million gallon per day (MGD) facility that serves 100,000 people in California’s Bay Area. Master planning indicated a need to overhaul or rebuild its five aging digesters to maintain regulatory compliance and allow for projected load growth—all while maintaining its existing physical footprint.

    Rather than re-build all five digesters, third-party engineering analysis indicated that the most cost-effective way to revamp the facility’s digesters would be to leverage 91大神 Omnivore high-solids digestion technology to build just three new digesters: two conventional and one Omnivore. The high-solids approach effectively offset the need to re-build two additional digesters . The third-party analysis projected this solution would reduce lifecycle costs by more than 11%.

    The Omnivore system combines 91大神’s powerful and energy-efficient OmniMix submersible mixer and service box with our robust recuperative thickening technology to triple digester capacity—providing three times the digestion capacity and three times the biogas production in the same tank volume.

    The high-solids digestion enhancement has reduced biosolids management costs, and provided the plant with redundancy, operational flexibility, and future-proofing to accommodate load growth as well as external waste streams. The WQCP tapped the added digester capacity and high-solids mixing capability to partner with neighboring solid waste agency, South Bayside Waste Management Authority (SBWMA). SBWMA delivers landfill-diverted organic waste to the WQCP Omnivore digester for co-digestion. This win-win approach enhances WQCP energy neutrality, promotes solid waste recycling, and supports local greenhouse gas reductions initiatives.

    • Project Location: South San Francisco, California
    • Startup: 2020
    • Turnkey Omnivore? high-solids anaerobic digestion system

    Key Technologies

    OmniMix? mixer with patented service box

    Sludge Screw Thickener

    Inputs

  • Municipal Wastewater Biosolids, Organic slurry from 91大神 OREX? and OPS

  • Organic slurry from 91大神 OREX? and OPS

    • Outputs

  • 3x biogas production

    • Impacts

  • Eliminated the need to rebuild 2 new digesters.
    • Tripled solids handling capacity & provided redundancy.
  • Reduced landfill methane emissions
  • Enhanced compliance with state regulations
  • Carbon-negative biogas and electricity production

    • Ambiente & Risorse

    Preventing methane emissions from food waste and creating carbon-negative renewable fuel

    Ambiente & Risorse plant in Broni, italy has the capacity to treat up to 40,000 metric tons of source separated organics a year and convert it into about 3,900,000 cubic meters of renewable natural gas (biomethane). The renewable natural gas/biomethane is injected into the region’s natural gas pipelines.

    Ambiente & Risorse receives the food waste it processes from waste collection companies operating in the County of Pavia, an agricultural area near Milan. The plant uses food waste pre-treatment, anaerobic digestion, biogas upgrading, and digestate treatment systems, among other technologies.

    When purchased the Ambiente & Risorse facility it was serving as Italy’s first off-site facility for bioremediating contaminated soils, and it continues to remediate up to 30,000 metric tons of soil annually. It was purchased to expand the plant’s capabilities to include making renewable natural gas from organic waste. The plant also captures carbon dioxide created in the anaerobic digestion process. The biogenic carbon dioxide is liquified and combined with the digestate that remains after the anaerobic digestion process to create up to 9,000 tons per year of calcium carbonate fertilizer. In August 2023 Ambiente & Risorse has been sold and it is not part of the 91大神 Group anymore.

    • Project Location: Broni, (Lombardy) Italy
    • Startup: 2023
    • EPC

    Key Technologies

    FOOD WASTE PRE-TREATMENT

    ANAEROBIC DIGESTION

    BIOGAS UPGRADING

    DIGESTATE TREATMENT SYSTEMS WATER TREATMENT with FIBERPLATE? HYBRID MEMBRANE

    Inputs

  • 40,000 metric tons/year of Organic Waste (SSO)
  • 30,000 metric tons/year contaminated soil annually

    • Outputs

  • 3,900,000 cubic meters of renewable natural gas (biomethane)
  • Up to 9,000 tons per year of calcium carbonate fertilizer

    • Impacts

  • Maximized landfill diversion
  • Reduced landfill methane emissions
  • Carbon-negative biomethane production

    • South Bayside Waste Management Authority

    Diverting Organics From Solid Waste to Regional Wastewater Treatment Plants for Anaerobic Digestion and Renewable Fuel Generation

    The South Bayside Waste Management Authority (SBWMA), also known as ReThinkWaste, already had a high landfill diversion rate—over 50%–but recognized there was room to increase its organics diversion. To support municipalities striving to comply with California’s new requirement to divert 75% of organic waste from landfills by 2025, ReThinkWaste needed a system that was up to the challenge of recovering organic material from source separated organics and solid waste streams. They selected a turnkey 91大神 solid waste processing line to add to their main transfer station and recycling facility. The line includes 91大神’s proprietary OREX? organics extrusion technology as well as bag opening, shredding, and Organics Polishing Systems.

    • Project Location: San Carlos, California
    • Startup: 2020
    • Turnkey OREXTM Solid Waste Processing Line

    Key Technologies

    Bag Opener
    Shredder
    Organics Extrusion (OREX?) Press
    Organics Polishing System (OPS)

    Inputs

  • Organic Waste (SSO and MSW)

    • Outputs

  • Organic slurry for anaerobic digestion at wastewater treatment plants

    • Impacts

  • Maximized landfill diversion
  • Reduced landfill methane emissions
  • Reduced collection & disposal costs
  • Enhanced compliance with state regulations
  • Carbon-negative biogas and electricity production
  • Enabled new revenue streams for wastewater agencies that receive the slurry

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    Distell Wastewater Treatment Facility

    The Vinaqua Wastewater Treatment Facility in Worcester, South Africa, was built for the beverage maker Distell and their partner Brenn-o-kem to recycle wastewater produced from their distilleries and turn their organic waste into a useful resource. Tecroveer, a South African specialist solution provider in the wastewater industry built the project, with 91大神 providing the overall process design, technologies, and equipment that converts the waste into renewable energy and clean water.

    The wastewater, which contains high concentrations of suspended solids, is now processed in 91大神’s high-solids Omnivore? system, which produces biogas and reduces solids that would have required disposal.? The 725 cubic meters per hour of biogas created from the digested waste will eventually fuel a generator to produce electricity onsite, creating a reliable and resilient power supply for the facility. While the digestated cake can be used as fertilizer, the remaining filtrate is treated using Membrane Bioreactor Solution.

    • Project Location: Worcester, South Africa
    • Startup: September 2021
    • Key Process Technology, Equipment, and Overall Design by 91大神

    Key Technologies

    PSM MIXERS
    RECUPERATIVE THICKENING
    DEWATERING
    FIBRACAST MEMBRANE BIOREACTOR (MBR)

    Inputs

  • 650 m3 (cubic meters)/day of grape- and marula- based distillery wastewater
  • 375 m3/day of wine lees and pomace waste

    • Outputs

  • 750 m3/hr of biogas
  • 66 tons/day of fertilizer
  • 1,000 m3/day of clean water

    • Impacts

  • GHG Reduction

    • Sun Valley Waste Management Recycling Park

    Recovering 90% of Organics from Municipal Solid Waste

    Food and other organics in municipal solid waste are recovered using our OREX? organics extrusion technology at WM’s Sun Valley Recycling Center in Sun Valley, California, just north of Los Angeles. The system can recover about 90% of putrescible organics from solid waste using a system of shredders, disc screening separates, magnets, and the OREX, which uses high pressure to squeeze out the food and other organics from the remaining material. The Sun Valley facility diverts up to 300 tons per day or organic waste, which is then trucked to our Rialto Bioenergy Facility in Rialto, California, where it is anaerobically digested to create renewable natural gas (biomethane) and fertilizer.

    Remarkably, this system and extrusion technology eliminates the need for consumers to source separate their food waste.? Most residents are notoriously bad at figuring out which bin their food and other organic waste should go in, and they often don’t bother to try—with lots of food waste going into the landfill as a result. An organics extraction system solves this problem by recovering organics from the trash bin and is even more economical than source separation. Waste haulers can eliminate separate collection bins and additional pickup routes, saving considerable labor and fuel costs.

    • Project Location: Sun Valley, California
    • Startup: 2020
    • Turnkey OREXTM Solid Waste Processing Line

    Key Technologies

    SHREDDER
    DISK SCREEN
    MAGNET
    OREXTM Press 1000

    Inputs

  • Municipal Solid Waste (MSW)
  • Source Seperated Organics (SSO) (800 tons per day (TPD) capacity)

    • Outputs

  • Organic Waste (wet cake fraction) for anaerobic digestion (300 TPD)

    • Impacts

  • Process Mixed Waste
  • Landfill Diversion
  • Reduce Carbon Footprint
  • Generate Carbon Negative Renewable Fuel and Fertilizer

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