Professional Aquatic Product Processing Wastewater Treatment Solutions

In the booming aquatic product processing industry, efficient Wastewater Treatment has become a critical factor for enterprises to achieve green development and comply with environmental regulations.Henan Lvfeng Environmental Protection Technology Co., Ltd., a leader in food industry water pollution control, offers tailored wastewater treatment engineering solutions for aquatic product processing, committed to solving the industry's unique environmental challenges with professional technology and reliable services.

The Source of Aquatic Product Processing Wastewater

Aquatic product processing wastewater originates from various stages of the production process, including:

• Thawing of raw frozen fish
• Washing, draining, and disinfection of raw materials
• Cleaning of processing equipment
• Flushing of workshop floors

The main pollutants in such wastewater include CODcr, BOD5, SS (Suspended Solids), ammonia nitrogen, and animal/plant oils, which require targeted treatment to meet emission standards.

Characteristics and Treatment Difficulties

• High organic content: Rich in macromolecular organics such as proteins and fats, leading to high COD and BOD levels.
• Elevated nitrogen and phosphorus: High concentrations of ammonia nitrogen and phosphorus make it difficult to meet discharge standards for these indicators.
• Low water temperature: Slows down biochemical degradation efficiency, affecting treatment effectiveness.
• Fluctuating quality and quantity: Seasonal production leads to significant variations in wastewater volume and composition.
• Sludge issues: Large sludge production with colloidal properties, making dehydration challenging.

Water Quality Parameters and Treatment Requirements

Design Parameters

Treatment capacity: 1000 m³/day

Influent water quality:

Temperature: 10-20℃

PH: 6.5

COD: 1800 mg/L

BOD: 800 mg/L

SS: 600 mg/L

Ammonia nitrogen: 36 mg/L

Animal/plant oils: 45 mg/L

Discharge Standards

The treated wastewater must meet the first-class criteria specified in GB8978-1996 "Integrated Wastewater Discharge Standard", with key indicators as follows:

SS: <70 mg/L

BOD: <20 mg/L

COD: <100 mg/L

Ammonia nitrogen: <15 mg/L

Advanced Treatment Process

Lvfeng Environmental Protection has developed a scientific and efficient treatment process tailored to the characteristics of aquatic product processing wastewater:

Pretreatment Stage

To address the uneven discharge and large fluctuations in water quality, pretreatment is crucial for stable subsequent treatment:

• Grille and lifting pump station: Removes large solid suspended matters such as fish skin, meat scraps, and fish bones.
• Air flotation tank: Effectively separates oils and fine suspended solids.
• Hydrolytic acidification tank: Improves wastewater biodegradability, accelerates the breakdown of macromolecular organics, and prepares for biological treatment.

Main Treatment Stage

Given the high biodegradability of the wastewater (BOD/COD = 0.44), biological treatment is adopted as the core process, achieving impressive removal rates:

• COD: >94.4%
• BOD: >97.5%
• SS: >88.3%
• Ammonia nitrogen: >58.3%

Why Choose Lvfeng Environmental Protection?

Professional advantages: As a leader in food industry water pollution control, we provide one-stop services covering water quality testing, process design, engineering construction, equipment development, installation and commissioning, and entrusted operation.

Proven track record: We have helped over 500 food enterprises solve wastewater treatment problems, serving well-known brands such as Shuanghui, Mengniu, and Hema.

Core features of solutions: Clean energy utilization, green environmental protection, safe and stable operation, and simple maintenance.

Contact Us

For customized aquatic product processing wastewater treatment solutions, please contact:

Inquiry hotline: 0373-5893589

Technical consultant: Ryan (+8618903736013)

Choose Henan Lvfeng Environmental Protection Technology Co., Ltd. to ensure your enterprise meets environmental standards and achieves sustainable development.