Reliable Biogas Solution Provider with GFS Tanks for Global POME Treatment Projects

The Asia-Pacific region, particularly China, has become the world's largest industrial wastewater treatment market, with the operation and maintenance service segment's contribution continuing to rise, marking a shift from project construction to long-term operational management. The North American market focuses on upgrading existing facilities, while Europe emphasizes high-value-added resource recovery technologies.

Wastewater from the new energy industry chain (lithium batteries, photovoltaics, hydrogen) has become the most notable emerging growth area due to its complex composition and high treatment difficulty, generating significant demand for customized solutions. The maturity of third-party treatment models in industrial parks continues to improve, driving consolidation in the professional operation market. The Middle East has strong demand for advanced treatment and reuse of industrial wastewater due to water scarcity; manufacturing transfer in Southeast Asia drives local industrial wastewater treatment facility construction demand.

This regional shift toward long-term operation and resource recovery favors treatment infrastructure that is durable, modular, and fast to deploy. Prefabricated GFS Tanks meet exactly these requirements, offering a construction model fundamentally different from conventional concrete tanks.

GFS Tanks Bolted Assembly Construction

GFS tanks are assembled on-site from prefabricated panels, with short construction periods and support for expansion, relocation, and reuse-advantages distinctly different from immovable concrete tanks. Concrete tank pouring requires formwork, rebar tying, pouring, and long curing periods, with a single tank construction taking months. Rain, snow, and low temperatures force work stoppages and delays. Once poured, they are permanent fixed structures that cannot be dismantled, expanded, or relocated-project relocation means complete abandonment.

GFS tank panels are all factory-prefabricated, transported to site, and directly assembled in panels with simple procedures. Construction can proceed even in low-temperature, light-rain conditions, with installation time only one-third that of concrete tanks-construction schedules are controllable. For expansion, additional steel panels can be installed to increase volume; for plant relocation, tanks can be fully disassembled with panels transported to new sites for reassembly and reuse, significantly reducing material and construction costs for new construction and reconstruction. This is ideally suited for short-term environmental projects, phased expansion projects, and relocated construction projects.

The flexibility of GFS Tanks is most valuable when paired with anaerobic processes designed for difficult, high-solids wastewater. The USR Process is a defining example of this combination.

What is USR Process?

USR, or Upflow Solids Reactor, is an upflow anaerobic process modified for high-suspended-solids, high-solids organic wastewater, specifically designed to solve problems of clogging, sludge washout, and uneven reaction common in traditional anaerobic processes for high-solids wastewater. The process eliminates complex three-phase separators, simplifies internal structure, and relies on upflow hydraulics to promote thorough mixing of solid materials and anaerobic sludge. No strict granular sludge formation conditions are required-flocculent sludge can operate stably. The key feature is high solids tolerance and impurity resistance, with very high influent suspended solids tolerance. It is a dedicated high-efficiency anaerobic process for livestock manure, agricultural organic waste, and high-solids livestock wastewater, specifically developed for agricultural and environmental applications.

This process capability directly addresses the most demanding agro-industrial wastewater stream in tropical regions-palm oil mill effluent. Understanding its sources and characteristics explains why POME Treatment requires a purpose-built approach rather than a generic anaerobic design.

Palm Oil Mill Effluent Wastewater Sources

Palm oil mill effluent (POME) originates from the entire processing chain of fresh fruit bunches (FFB) in palm oil milling-the highest pollution load and largest volume high-concentration organic industrial wastewater in tropical agricultural processing. Palm oil mills typically process 30-120 tons of FFB daily, generating approximately 0.5−1.0m30.5−1.0m3 of wastewater per ton of FFB processed-single mills discharging hundreds to thousands of cubic meters daily, representing a core environmental challenge for the palm oil industry. Wastewater comes from three main sources:

• Sterilization: FFB enter sterilization vessels for high-temperature steaming to deactivate lipase and prevent free fatty acid increase-producing sterilization condensate, the largest volume source at 80−90∘C80−90∘C, rich in soluble sugars, amino acids, organic acids, COD 15,000-30,000 mg/L;
• Clarification: Pressed crude oil undergoes centrifugal separation and gravity settling to remove water and impurities-producing large volumes of oily wastewater with extremely high oil content and suspended solids, COD 50,000-80,000 mg/L, the highest organic load source;
• Kernel recovery: Palm kernels are separated by hydrocryclones and washed for recovery-producing sandy wash water with high suspended solids but relatively lower organic concentration. Auxiliary discharges include CIP cleaning, floor wash, boiler blowdown, and cooling tower water. POME is acidic (pH 4.0-5.0), high-temperature (60−80∘C60−80∘C), brown colloidal, rich in oils, suspended solids, colloidal proteins, and soluble sugars-a typical high-concentration, high-oil, high-suspended-solids organic industrial wastewater.

Delivering reliable POME Treatment at scale requires disciplined on-site execution, not just process design. Center Enamel maintains dedicated construction manpower reserves to ensure consistent delivery across regions.

Center Enamel Professional Construction Team Manpower Reserve

Center Enamel has established its own domestic and international certified construction teams, with regular practical training on GFS tank installation and overseas construction standards for various countries. Domestically, regional construction teams cover multiple zones, capable of simultaneously deploying multiple teams for large tank farm projects. Internationally, cross-border professional installation teams are equipped to various country construction standards-sufficient manpower reserves ensure uninterrupted construction delivery for remote African sites, high-standard European/American facilities, and other projects.

Execution capability alone is not enough-long-term performance depends on material durability. As a Biogas Solution Provider, Center Enamel backs its delivery with proprietary anti-corrosion technology developed in-house.

Center Enamel Innovative Material Technology

Center Enamel has independently developed over 200 anti-corrosion enamel formulations, with proprietary double-sided double-layer enameling technology-GFS tank anti-corrosion service life exceeds 30 years-far surpassing concrete and ordinary equipment-suitable for global high-corrosion wastewater and biogas fermentation conditions.

Material durability protects the tank shell, while the roof system protects gas quality and odor control. This is where Center Enamel's dome roof technology completes the sealed anaerobic system.

Aluminum Geodesic Dome Roof

Aluminum Geodesic Dome Roof independently developed by Center Enamel is manufactured using high-strength aluminum alloy plates through integral stamping. It features a triangular grid spherical self-supporting structure, enabling large-span full coverage without internal support columns. Made of aluminum alloy, the roof offers excellent weather resistance and corrosion resistance, capable of long-term protection against acid rain, salt spray, and UV radiation, suitable for various extreme outdoor climate conditions. The structural design complies with international AWWA D108 standards, with aluminum plate thickness, rib cross-sections, and joint connections all verified by finite element stress analysis, ensuring wind and snow load resistance that meets building code requirements across different global regions.

The weight of the Aluminum Geodesic Dome Roof is only one-third to one-half of a steel roof with the same span, significantly reducing the load on the tank top and allowing direct installation without tank wall reinforcement. The roof provides superior overall sealing performance, with double sealing between panels using specialized sealant strips and mechanical interlocking, enabling both airtight gas storage and enclosed odor control, suitable for biogas collection and storage, wastewater tank odor control, and drinking water contamination prevention. The support-column-free design does not interfere with the installation and operation of internal equipment such as mixers and water distributors. The aluminum material does not support microbial growth, requiring no anti-corrosion maintenance over long-term use, resulting in low total life-cycle costs.

Frequently Asked Questions

What makes Center Enamel a reliable Biogas Solution Provider?

Center Enamel integrates GFS Tanks, USR/CSTR anaerobic reactors, membrane roofs, and dome covers into complete biogas systems. With 30,000+ projects in 100+ countries, it delivers design, manufacturing, installation, and lifecycle support from a single source.

Why are GFS Tanks suited to POME Treatment?

POME is acidic, high-temperature, and rich in oil and suspended solids. GFS Tanks resist corrosion for 30+ years, tolerate hydrogen sulfide, assemble rapidly on site, and support expansion or relocation-matching the fluctuating capacity needs of palm oil mills.

How does the USR Process improve high-solids wastewater treatment?

The USR Process removes complex three-phase separators, relies on upflow hydraulics, and tolerates very high suspended solids. It requires no granular sludge cultivation, starts up quickly, resists clogging, and suits livestock, agricultural, and palm oil wastewater applications.