Center Enamel Provides CSTR Technology for Food Industry Wastewater
Treatment
The food processing industry is one of the largest contributors to
wastewater generation, producing large volumes of high-strength
organic wastewater. The treatment of food industry wastewater
presents unique challenges due to its high organic load, grease,
suspended solids, and variable composition. To address these
challenges, Shijiazhuang Zhengzhong Technology Co., Ltd (Center
Enamel) provides advanced Continuous Stirred-Tank Reactor (CSTR)
technology—a highly efficient anaerobic digestion solution for food
industry wastewater treatment.
As a global leader in bolted storage tank manufacturing and a
pioneer in anaerobic digestion technology, Center Enamel is
committed to delivering sustainable, cost-effective, and efficient
wastewater treatment solutions that meet the stringent
environmental regulations of the food industry while promoting
waste-to-energy conversion.
Challenges of Food Industry Wastewater Treatment
The food processing industry generates a variety of high-strength
wastewater from operations such as:
Dairy production (milk, cheese, yogurt, and ice cream processing)
Beverage processing (juice, soft drinks, and brewery wastewater)
Meat and poultry processing
Seafood processing
Sugar and confectionery production
Common characteristics of food industry wastewater include:
High organic content (BOD & COD) – Leading to oxygen depletion in
water bodies if not properly treated
High levels of suspended solids and grease – Requiring efficient
separation and breakdown
Fluctuating pH levels – Caused by different food production
processes
Presence of nutrients (Nitrogen & Phosphorus) – Causing
environmental concerns such as eutrophication
To address these challenges, CSTR technology has emerged as a
proven anaerobic digestion solution for efficiently treating food
industry wastewater while generating renewable biogas as a
byproduct.
CSTR Technology: A Game-Changer for Food Industry Wastewater
Treatment
The Continuous Stirred-Tank Reactor (CSTR) is an anaerobic
digestion system designed to efficiently break down organic matter
in food industry wastewater under controlled anaerobic conditions.
It is particularly suitable for high-strength wastewater with high
COD and BOD levels.
How CSTR Works in Food Industry Wastewater Treatment
Wastewater Collection & Pre-Treatment
Removal of large particles, oil, and grease
Balancing pH and temperature for optimal anaerobic digestion
Anaerobic Digestion in CSTR Reactor
Food wastewater is fed into the CSTR digester, where microorganisms
break down organic compounds
Continuous stirring ensures homogeneous mixing and efficient
degradation of organic material
Methanogenic bacteria convert organic matter into biogas (methane +
carbon dioxide)
Biogas Recovery & Utilization
Biogas is captured and can be used for electricity generation,
heating, or as a renewable energy source
Reduces dependence on fossil fuels, lowering operational costs and
carbon footprint
Effluent Treatment & Discharge
Treated wastewater undergoes further clarification, filtration, and
nutrient removal
Ensures compliance with local discharge regulations or reuse for
irrigation and industrial processes
Advantages of CSTR Technology for Food Industry Wastewater
Treatment
High Organic Load Reduction
Effectively reduces BOD and COD levels, making wastewater suitable
for safe discharge or reuse
Biogas Production for Energy Recovery
Converts organic waste into renewable biogas, which can be used for
electricity generation or thermal energy
Cost-Effective & Energy-Efficient
Reduces waste disposal costs and energy consumption by utilizing
biogas as an energy source
Stable and Continuous Operation
Unlike batch processes, CSTR operates continuously, ensuring
consistent wastewater treatment performance
Compact & Scalable Design
Modular design allows easy expansion based on wastewater volume
changes
Sustainable & Eco-Friendly Solution
Reduces greenhouse gas emissions and carbon footprint of food
industry operations
Center Enamel’s Expertise in CSTR-Based Food Industry Wastewater
Treatment
As a leading anaerobic digestion tank manufacturer, Center Enamel
provides fully integrated, high-performance CSTR solutions for food
industry wastewater treatment. Our Glass-Fused-to-Steel (GFS)
tanks, stainless steel tanks, and epoxy-coated steel tanks are
widely used for anaerobic digestion and biogas applications.
Why Choose Center Enamel?
Over 30 Years of Industry Experience
Expertise in wastewater treatment and biogas projects across
multiple industries
Advanced Glass-Fused-to-Steel (GFS) Technology
Provides superior corrosion resistance, long lifespan, and low
maintenance requirements
Customized Turnkey EPC Solutions
Engineering, procurement, and construction services for efficient
project execution
Global Project Experience
Successfully delivered food industry wastewater treatment projects
worldwide
Successful CSTR Food Industry Wastewater Projects by Center Enamel
Dairy Processing Wastewater Treatment Plant
Solution: CSTR anaerobic digestion system
Biogas Generation: Utilized for steam generation in the dairy plant
Result: Reduced COD levels by 85%, meeting environmental discharge
standards
Brewery Wastewater Treatment Project
Solution: Integrated CSTR and UASB anaerobic digestion
Biogas Application: Used for on-site power generation
Result: Achieved energy self-sufficiency and reduced operating
costs
Meat Processing Wastewater Treatment Project
Solution: Multi-stage CSTR system with nutrient recovery
Environmental Impact: Significantly reduced nitrogen and phosphorus
discharge
Result: Compliant with stringent food industry wastewater
regulations
Conclusion
With the increasing environmental regulations and sustainability
goals in the food industry, CSTR technology has proven to be a
highly efficient and cost-effective wastewater treatment solution.
As a global leader in wastewater treatment solutions, Center Enamel
is committed to delivering customized, sustainable, and
high-performance CSTR systems for food industry wastewater
treatment. Our turnkey solutions help food processing plants
achieve compliance, energy efficiency, and environmental
sustainability while recovering valuable biogas.
Looking for a reliable wastewater treatment solution for your food
industry project?
Contact Center Enamel today to learn more about our advanced CSTR
technology!
