Leading Biogas Project EPC Contractor for South Korea Pig Farm Wastewater Treatment Project
In South Korea, pig farming is a core sector of livestock agriculture, supporting stable domestic meat supply and rural economic development. In recent years, the industry has accelerated toward large-scale, intensive, and standardized operations, especially in Gyeonggi-do, Chungcheongnam-do, and Jeollabuk-do. With the expansion of modern pig farms, the volume of breeding wastewater has increased sharply, bringing strict environmental challenges.
South Korea has implemented stringent environmental regulations for livestock pollution control, with clear limits on COD, ammonia nitrogen, suspended solids, and total phosphorus in pig farm wastewater. Discharge without qualified treatment will result in heavy fines and mandatory rectification. Meanwhile, the government strongly encourages resource utilization and renewable energy recovery, making biogas projects an optimal choice for compliance, cost reduction, and green transformation.
As a professional biogas Project EPC Contractor, Center Enamel provides full-chain turnkey solutions for South Korea pig farm Wastewater Treatment Project. With advanced anaerobic technologies (especially the CSTR Process), high-quality Glass-Fused-to-Steel (GFS) tanks, and rich global engineering experience, we help pig farms achieve stable compliance, efficient biogas production, and circular economy development.
How Biogas Is Produced from Pig Farm Wastewater
Biogas generation from pig farm wastewater is a three-stage anaerobic biochemical process completed by microorganisms in a sealed, oxygen-free environment.
Hydrolysis Acidification Stage: Complex organics such as carbohydrates, proteins, and fats in manure, urine, and flushing water are decomposed into small molecular organic acids, alcohols, hydrogen, and carbon dioxide by acidogenic bacteria. This stage converts insoluble pollutants into soluble substances, laying a stable foundation for subsequent reactions.
Acetogenic Stage: Small molecular intermediates are further degraded into acetic acid, hydrogen, and CO₂ by acetogenic bacteria. Acetic acid is the most critical precursor for methane, directly supporting stable and high biogas yield.
Methanogenic Stage: Methanogenic archaea convert acetic acid, hydrogen, and carbon dioxide into biogas, which is mainly composed of 50%–60% methane and 40%–50% carbon dioxide. After desulfurization, dehydration, and purification, biogas can be used for on-site power generation, heating, boiler fuel, or even upgraded to biomethane. This turns high-strength wastewater into high-value clean energy, helping farms lower energy costs and meet strict Korean emission standards.
Anaerobic Technologies for South Korea Pig Farm Wastewater Treatment Projects
To match South Korea’s climate, terrain, intensive breeding mode, and high-standard environmental requirements, Center Enamel applies four mature anaerobic processes, with CSTR Process as the core and preferred solution.
1. CSTR Process (Completely Stirred Tank Reactor)
The CSTR Process is the most suitable technology for South Korea pig farm Wastewater Treatment Project, especially for high-solid-content manure and mixed wastewater.
Working Principle: Uses high-torque mechanical stirring to fully mix wastewater and anaerobic sludge, avoiding sediment accumulation, crusting, and dead zones inside the reactor.
Core Advantages: Strong shock loading resistance; ideal for high-SS pig manure; stable biogas output; easy operation and maintenance; compatible with zero-waste recycling systems.
Application in South Korea: Widely used in large-scale intensive pig farms, ensuring stable treatment efficiency under high organic loading and meeting strict Korean environmental monitoring requirements.
2. USR Process (Upflow Solid Reactor)
Simple structure with no mechanical mixing equipment. Solids are intercepted in the sludge bed to prolong reaction time. Low operating cost, suitable for medium-sized farms.
3. UASB Process (Upflow Anaerobic Sludge Blanket)
Mature technology with high volumetric loading rate and small footprint, suitable for liquid-rich, relatively low-solid pig farm wastewater.
4. IC Process (Internal Circulation)
High-rate anaerobic technology with internal circulation driven by biogas, with treatment capacity 3–5 times higher than traditional reactors, ideal for large-scale breeding industrial zones.
Center Enamel customizes process combinations such as CSTR + UASB or CSTR + IC based on farm scale, wastewater characteristics, land availability, and energy demand to maximize treatment efficiency and economic benefits.
Overall Advantages of Center Enamel in South Korea Pig Farm Biogas Projects
As a leading biogas Project EPC Contractor, Center Enamel has unique strengths in serving South Korea pig farm Wastewater Treatment Project:
Compliance-Oriented Design: Solutions fully align with South Korea’s strict livestock wastewater discharge standards and renewable energy policies.
Customized Integrated Solutions: Full-process design covering collection, pretreatment, anaerobic digestion, biogas purification, effluent post-treatment, and digestate recycling.
Strong R&D and Anti-Corrosion Technology: Over 200 patented enamel formulas, specially optimized for corrosive pig farm wastewater.
Full Lifecycle Service: From design, manufacturing, installation to commissioning, training, and after-sales support, ensuring stable long-term operation.
Core Equipment Provided by Center Enamel for Biogas Projects
Center Enamel supplies a complete set of high-performance equipment for pig farm Wastewater Treatment Project:
Glass-Fused-to-Steel (GFS) Tanks
As the core reactor for CSTR Process, GFS tanks are made by fusing enamel to steel at over 820°C.
Strong Corrosion Resistance: Wide pH resistance (1–14), withstands organic acids, hydrogen sulfide, and corrosive components.
Excellent Seismic & Thermal Stability: Bolted structure offers better seismic performance than concrete; resistant to temperature changes and ultraviolet radiation.
Fast Bolted Assembly: Factory prefabricated, no on-site welding, short construction period, easy expansion.
Fusion Bonded Epoxy (FBE) Tanks
Used for equalization tanks and treated water storage, providing cost-effective and durable auxiliary storage.
Biogas Utilization Equipment
Double Membrane Gas Holders, biogas desulfurization and dehydration units, and Aluminum Dome Roofs to ensure stable and safe biogas storage and utilization.
Supporting Equipment
Solid-liquid separators, mixing systems for CSTR Process, piping, valves, and electrical control systems form a fully integrated treatment system.
Why Center Enamel Is the Preferred Biogas Project EPC Contractor
Asia’s Largest GFS Tank Manufacturing Base: Ensures stable supply, precise quality, and on-time delivery even for demanding Korean projects.
Strict International Quality Certifications: Comply with ISO 28765, AWWA D103-09, OSHA, NSF/ANSI 61 standards; each plate passes 1500V spark test.
Industry Standard Leader: Main drafter of China’s GFS tank industry standard, setting global quality benchmarks.
Localized Engineering: Adapted to South Korea’s terrain, climate, and strict regulatory environment.
Strong Economic & Environmental Benefits: Reduces treatment cost, produces clean biogas, generates organic fertilizer, and forms a closed-loop circular breeding model.
Center Enamel’s Efficient Installation Process
Our installation technology is optimized for high efficiency, safety, and stability:
Hydraulic Jacking System: Top-down installation without high scaffolding or large cranes.
Zero On-Site Welding: Factory prefabricated, bolted assembly, avoiding weld defects.
Fast Commissioning: Greatly shorter cycle than concrete tanks, enabling early operation and income.
Professional International Team: Ensures standardized, safe, and efficient construction.
Two Successful Biogas Project Cases by Center Enamel
Case 1: Henan Livestock Farm Biogas Project
Installation Date: 2013
Location: Henan
Processing Capacity: 650 tons/day of livestock manure and wash wastewater
Treatment Method: Mesophilic Anaerobic Digestion
Reactor Type: CSTR
Case 2: Beijing Pig Farm Wastewater Treatment Project
Installation Date: 2020
Location: Beijing
Daily Treatment Capacity: 580 m³/day
Treatment Process: UASB + AAO. This project employs a combination of physical, biological, and chemical treatment technologies to separate, remove, and recover pollutants from the wastewater—or convert them into harmless substances—thereby ensuring water purification.
South Korea’s pig farming industry is moving toward intensification, greening, and high-standard compliance, and pig farm Wastewater Treatment Project has become essential infrastructure. As a professional biogas Project EPC Contractor, Center Enamel provides reliable CSTR Process, high-quality GFS tanks, customized solutions, and full EPC services.
We help South Korean pig farms achieve environmental compliance, recover high-value biogas energy, reduce operating costs, and build sustainable circular breeding systems. Choosing Center Enamel means choosing a reliable long-term partner that integrates environmental protection, energy saving, and economic efficiency, creating stable and long-term value for your pig farm Wastewater Treatment Project.