Custom Anaerobic Digester Tank Fabrication

Roben, Mfg, Inc. is a leading provider of custom anaerobic digester tank fabrication services, specializing in the design, engineering, and manufacturing of high-performance vessels for biological waste conversion and renewable energy production. With our expertise, advanced bioprocess engineering capabilities, and commitment to environmental sustainability, we deliver custom anaerobic digester tanks that meet the unique operational requirements of our clients and optimize the conversion of organic waste into valuable biogas and nutrient-rich digestate.

Why Choose Custom Anaerobic Digester Tank Fabrication?

• Optimized Biological Performance: Custom anaerobic digester tanks are designed and fabricated with precise geometry, mixing systems, and temperature control specifically engineered to create ideal conditions for methanogenic microorganisms, ensuring maximum biogas yield and waste conversion efficiency.
• Feedstock-Specific Design: By tailoring tank configurations to handle specific organic waste streams—whether agricultural residues, food waste, municipal sludge, or industrial effluents—custom digesters can accommodate variations in solids content, degradability, and potential inhibitory compounds.
• Enhanced Process Control: Custom-designed tanks incorporate comprehensive monitoring and control systems for critical parameters including temperature, pH, mixing intensity, and gas production, enabling precise process management across varying operational conditions.
• Improved Operational Efficiency: Anaerobic digester tanks engineered for specific deployment scenarios feature appropriate feeding mechanisms, digestate handling, foam management, and gas collection systems tailored to site-specific requirements and operator capabilities.
• Integrated Energy Recovery: While standard tanks often require retrofitting, custom anaerobic digesters can be designed from the outset with efficient biogas handling, purification, and utilization systems, maximizing energy recovery and sustainability benefits.

Custom Anaerobic Digester Tank Fabrication Capabilities

• Bioprocess Engineering: We conduct thorough feedstock analysis and process modeling to design optimal tank configurations, hydraulic retention times, and loading rates specific to each client’s organic waste streams and treatment objectives.
• Heating System Integration: Our custom digesters incorporate efficient heating systems including internal heat exchangers, external recirculation heating, or hot water jacket designs to maintain optimal mesophilic or thermophilic conditions with minimal energy input.
• Advanced Mixing Solutions: We design and implement specialized agitation systems including mechanical mixers, hydraulic recirculation, gas injection, or hybrid approaches to ensure homogeneous conditions while minimizing energy consumption.
• Gas Management Systems: We integrate sophisticated biogas collection, storage, conditioning, and utilization equipment to maximize the value of produced methane while ensuring safe handling of potentially hazardous gases.
• Comprehensive Instrumentation: We incorporate state-of-the-art monitoring instruments for process parameters, gas quality, foam detection, and automated control systems to optimize digester performance and minimize operator intervention.

Custom Anaerobic Digester Tank Types

• Continuously Stirred Tank Reactors (CSTR)
• Plug Flow Digesters
• Upflow Anaerobic Sludge Blanket (UASB) Systems
• Expanded Granular Sludge Bed (EGSB) Reactors
• Fixed Film Digesters
• Hybrid Anaerobic Digesters
• Two-Stage Acidogenic/Methanogenic Systems
• High-Solids Dry Fermentation Systems
• Lagoon Digesters with Covers
• Egg-Shaped Digester Vessels
• Temperature-Phased Anaerobic Digestion Systems
• Sequencing Batch Reactors
• Horizontal Plug Flow Digesters
• Modular Small-Scale Digestion Systems

Anaerobic Digester Tank Applications

• Municipal Wastewater Treatment
• Food Processing Waste Management
• Agricultural Operations
• Dairy and Livestock Farms
• Beverage Production Facilities
• Pharmaceutical Manufacturing
• Pulp and Paper Mills
• Organic Fraction of Municipal Solid Waste
• Biofuel Production Facilities
• Brewing and Distilling Operations
• Slaughterhouse Waste Processing
• Food Retail Waste Recovery
• Industrial Wastewater Treatment
• Integrated Biorefinery Operations

Custom Anaerobic Digester Tank Fabrication Process

• Feedstock and Process Analysis: Our team of bioprocess engineers and microbiologists works closely with clients to characterize their specific organic waste streams, conducting biodegradability assessments, methane potential testing, and inhibition studies to establish process design parameters.
• Design and Engineering: Based on the feedstock analysis and production objectives, we create detailed designs and 3D models of the anaerobic digester tank system, incorporating all necessary features for biological optimization, operational efficiency, and safety.
• Material Selection: We carefully select construction materials with appropriate corrosion resistance, considering exposure to hydrogen sulfide, ammonia, organic acids, and other corrosive compounds typically present in anaerobic digestion environments.
• Precision Fabrication: Our skilled fabricators construct the vessel with particular attention to gas-tight seals, thermal insulation, and integration points for instrumentation, heating, and mixing systems.
• System Integration: We install and connect heating systems, mixing equipment, gas handling components, feeding mechanisms, and automated control systems according to the engineered design specifications.
• Commissioning Support: Our team provides comprehensive support during the critical biological startup phase, including seeding strategies, gradual loading increases, and process optimization to establish stable methanogenic activity.

Standards and Certifications for Anaerobic Digester Tanks

• ASME Boiler and Pressure Vessel Code (BPVC) Section VIII for applicable pressure vessels
• API 650 for Large Welded Storage Tanks (with biogas modifications)
• NACE International Standards for Corrosion Control
• NEC/NFPA 70 Article 500 for Hazardous Locations
• NFPA 820 for Fire Protection in Wastewater Facilities
• OSHA Process Safety Management (where applicable)
• EPA Biogas Regulatory Framework
• International Building Code for Structural Design

Custom Anaerobic Digester Tank Fabrication FAQs

Contact Roben, Mfg, Inc. today to discuss your anaerobic digester tank requirements and discover how our engineered solutions can support your waste-to-energy and sustainability goals.