China Suppliers Factory for Corrosion-Resistant GFS Tanks for Anaerobic Digesters and Biogas Storage
The core requirement for anaerobic digester tanks is corrosion resistance. Bolted steel tanks made of Glass-Fused-to-Steel are widely used for various storage applications and are the preferred choice for anaerobic digesters. They have a wide range of applications in practical engineering, especially for industrial wastewater (such as food, slaughtering, and pharmaceutical wastewater) and aquaculture sewage with complex composition and strong corrosiveness. Their excellent corrosion resistance and ease of construction are their main advantages.
The Glass Fused to Steel (GFS) tank is a kind of bolted storage tank made from two materials: glass and steel. High-strength TRS (titanium-rich steel) plates and enamels are perfectly fused at high temperatures to form a highly inert inorganic glaze layer. This coating system has excellent anti-corrosion properties and is the best choice for tank.
The steel substrate employed in the construction of glass-fused-to-steel tanks is a special high strength enamelled steel with a unique design and superior properties. Its mechanical properties, including yield strength, tensile strength, and elongation, far exceed those of conventional steel sheets.
| Coating thickness | 250~450um |
| PH range | Standard grade 3~11; Special grade 1~14 |
| Coating process | Standard 2 coats 2 fire; 3 coats 3 fire available |
| Hardness | 6.0 Mohs |
| Elasticity | 500KN/mm |
| Service life | More than 30 years |
The requirements for anaerobic digester tanks are essentially comprehensive requirements for safety, corrosion resistance, sealing, and functionality. The corrosion resistance and ease of construction of enameled bolted tanks/GFS bolted tanks are their main advantages for anaerobic reactors.
- Municipal sludge anaerobic digestion projects;
- Livestock and poultry breeding sewage treatment (large-scale pig farms, cattle farms, poultry farms);
- Food processing wastewater treatment (starch, dairy, beverage, meat processing plants);
- Biomass anaerobic digestion (crop straw, kitchen waste, agricultural by-products);
- High-concentration organic wastewater treatment in pharmaceutical, papermaking, and chemical industries.
In practical engineering, process selection needs to comprehensively consider the characteristics of raw materials (solid content, suspended solids, biodegradability), processing scale, target product (energy recovery rate), and economics. Anaerobic digesters/reactors can be divided into different process, included CSTR, UASB, EGSB, IC etc. GFS bolted tanks is suitable for all process mentioned above and can store biogas produced during the process using a biogas holder.
In practical engineering, process selection needs to comprehensively consider the characteristics of raw materials (solid content, suspended solids, biodegradability), processing scale, target product (energy recovery rate), and economics. Anaerobic digesters/reactors can be divided into different process, included CSTR, UASB, EGSB, IC etc. GFS bolted tanks is suitable for all process mentioned above and can store biogas produced during the process using a biogas holder.
