Anaerobic Digester Tanks Engineered for Biogas Performance

Engineered Containment for Modern Anaerobic Digestion Systems

Anaerobic digestion changes organic feedstocks of manure, food processing waste, and industrial or municipal wastewater into biogas made up of methane, carbon dioxide, hydrogen sulfide, and trace gases. It also creates a nutrient-rich digestate that supports downstream use. These conditions require steady containment that maintains gas integrity and prevents corrosion. A well-designed anaerobic digester tank keeps the internal environment stable so the system can run without interruption. These configurations support agricultural waste-to-energy systems, including farm anaerobic digester installations handling manure-derived organics.

Our tanks can be used at design pressure ratings ranging from 5 inches water column to 20 inches water column in facilities operating at mesophilic or thermophilic temperatures. Sidewall or roof mixer mounts are available and can be used together with either fixed or membrane roofs, depending on the type of gas-handling system to be implemented. Projects vary, and so do tanks. Tarsco assists in the diversity of process designs by constructing tanks from 9 to 100 feet in diameter and 5 to 110 feet in height, using concrete, bolted, or welded floors to suit each installation. These alternatives help engineers match mechanical and hydraulic designs with biological requirements.

Tarsco Bolted Tank offers various tank systems that protect the structure in aggressive environments with H₂S (hydrogen sulfide), wide pH ranges, and elevated temperatures. Our epoxy-coated carbon steel, stainless steel, and hybrid designs assure long service life. Additionally, factory-applied, thermally cured coatings provide reliability with ease of maintenance, and insulation systems are supplied with specified thickness based on process temperature requirements.