As the aquatic processing industry faces increasingly stringent food safety standards and challenges in sustainable water resource utilization, efficient water treatment technology has become a key enabler for business development. Traditional disinfection methods are gradually being replaced by new, safer and more efficient solutions, and water treatment technologies based on innovative ingredients are leading the industry into a new stage of development.
Characteristics and Treatment Challenges of Aquatic Product Processing Wastewater
High organic matter concentration: COD (chemical oxygen demand) typically ranges from 2,000 to 8,000 mg/L, originating from fish protein, fat, and washing byproducts.
High salinity: Seawater processing and preservation processes lead to high chloride ion concentrations, which impair biochemical treatment effectiveness.
Volatile water quality: The type of fish, shrimp, and shellfish processed and seasonal variations lead to unstable wastewater composition.
Nutrients: High nitrogen and phosphorus content can easily lead to eutrophication.
These characteristics make it difficult for traditional water treatment processes to consistently meet standards, necessitating more targeted technological breakthroughs and systematic design.
Application Practice: Comprehensive Water Treatment Solutions
Process Water Treatment
Raw Material Washing Water: Effectively removes surface microorganisms and extends product shelf life
Processing Water: Maintains stable water quality during production to ensure product safety
Cooling Water: Prevents cross-contamination and ensures product quality
Wastewater Treatment and Reuse
Pretreatment: Reduces organic matter loading and improves subsequent treatment efficiency
Advanced Treatment: Utilizes membrane technology for water reuse
Final Disinfection: Ensures effluent quality meets all standards
Equipment and Environmental Disinfection
Processing Equipment: Regularly disinfects to prevent biofilm formation
Production Environment: Disinfects spaces to reduce contamination risks
Transportation: Ensures product safety during transportation
Scientific Selection Guide: How to Match Enterprise Needs?
Select Based on Water Quality and Process
TCCA (better stability) is recommended for water with high organic matter and ammonia nitrogen content;
SDIC is recommended for processes requiring rapid sterilization and frequent adjustments.
Dosage Form and Usage Recommendations
TCCA: Suitable for tablets (suspended sustained-release) and powders (dissolved for dosing);
SDIC: Suitable for direct powder dosing or solution dosing.
Cost-Benefit Balancing
Comprehensively calculate available chlorine costs, labor costs, and water quality compliance rates;
Promote automated dosing to reduce manual labor and improve disinfection accuracy.
Conclusion
Modern water treatment technologies are reshaping quality standards and production methods in the aquatic product processing industry. By applying innovative technologies, companies can not only improve product quality and safety, but also achieve significant economic and environmental benefits.
