Fish protein liquid fertilizer manufacturing

Fish protein liquid fertilizer manufacturing is a fast-growing industry. More and more producers choose this method to turn fish waste and by-products into high-value liquid fertilizer. The process requires shredding, fermentation, solid-liquid separation, mixing, and filling. Each step needs reliable equipment to ensure stable quality and high efficiency. YUSHUNXIN provides complete fish protein fertilizer equipment solutions, from crushing machines to fermentation tanks and filling systems. We design every unit to meet your capacity and formulation needs. If you plan to start or upgrade a fish protein fertilizer production plant, welcome to consult us.

How to make fish protein liquid fertilizer step by step?

The production of fish protein liquid fertilizer is mainly divided into five major process steps:

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Crushing and Slurry Preparation: First, you need to crush the fish raw material into small pieces. A double shaft shredder works best because it increases surface area and makes fermentation easier. After crushing, add water in proportion and mix it well to form a slurry. This preparation ensures the raw material is ready for biological breakdown.
Anaerobic Fermentation in Tank: Next, pump the slurry into an anaerobic fermentation tank. You can add microbial strains or protease to improve protein breakdown. Keep the tank temperature at 30–50℃ and set fermentation time for 7–15 days. The built-in agitator stirs the material continuously, so the fermentation stays uniform. This fermentation process turns proteins into amino acids and nutrients that plants can absorb quickly.
Solid Liquid Separation and Residue Utilization: Once fermentation is complete, the slurry contains both liquid and solid residues. First, pump it through a filtration system to remove larger particles. Then use a solid liquid separator to separate the liquid from the solid fraction. The liquid part becomes the base fish protein fertilizer. The solid residue can be collected and reused for composting or soil improvement. This step is critical to obtain a clean and stable fertilizer solution.
Nutrient Blending and Chelation: Next, you can prepare trace elements and beneficial additives in a additives mixing tank. Then combine them with the main liquid fertilizer in a reaction vessel. Stir them evenly to produce a balanced product. At the same time, for extend the shelf life of liquid fish fish emulsion fertilizer, you can add preservatives like potassium sorbate. At this stage, you can customize the formulation, so your liquid fertilizer fits different crop needs.
Filling and Packaging: Finally, send the finished fertilizer into a filling machine. You can pack it in bottles, drums, or IBC tanks depending on market demand. Proper packaging keeps the fertilizer fresh and improves transport safety. At this point, you have a complete fish protein liquid fertilizer product ready for sale.

By following these five steps—crushing, fermentation, separation, blending, and filling—you can build a modern fish protein liquid fertilizer manufacturing line. With the right equipment such as shredder, fermentation tank, solid liquid separator, mixing system, and filling machine, you achieve stable quality and higher efficiency. If you plan to set up a plant, YUSHUNXIN provides customized design and professional equipment supply for your liquid fertilizer business.

How much does the fish emulsion liquid fertilizer production plant cost?

When you plan a fish protein liquid fertilizer plant, cost is always the first concern. The investment depends on your production capacity and the level of automation you choose. A small-scale line for trial production may only need tens of thousands of dollars. A medium or large plant with continuous operation can reach several hundred thousand. You also need to think about installation, operation, and future maintenance. A stable and efficient liquid fertilizer manufacturing system saves energy, reduces waste, and increases profit. When you work with YUSHUNXIN, you get clear cost planning and professional support, so you can invest with confidence and grow your business steadily.

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Top 3 benefits of choosing YUSHUNXIN Fish Protein Liquid Fertilizer Manufacturing Equipment

YUSHUNXIN offer on-site installation guidance, operation training, and spare parts support. Our technical team helps customers quickly start production and maintain stable operation for the long term.

YUSHUNXIN specializes in liquid fertilizer production equipment design and manufacturing. Our machines are widely used in fish protein fertilizer plants around the world.: Durable 304 Stainless Steel Construction
All key machines, including fermentation tanks, mixing vessels, and separators, use food-grade 304 stainless steel. This material resists corrosion from organic acids and salt in fish waste, ensuring long service life and easy cleaning.

Customized Process Design
We design the whole fish protein liquid fertilizer production line based on raw material condition, production capacity, and customer formula requirements. Whether you need a small-scale plant or a fully automatic industrial system, we provide tailored solutions.

Automation and Energy Saving
The production line integrates automatic feeding, temperature control, and stirring systems. Customers reduce labor costs and maintain consistent product quality. At the same time, optimized design lowers energy consumption during fermentation and mixing. The PLC system can monitor key parameters.

What raw Materials are used for Fish Protein Liquid Fertilizer Production

The initial step of fish protein liquid fertilizer manufacturing is choosing the right raw materials. Most liquid fertilizer suppliers use fish waste, fish meal, or by-products from the seafood processing industry. These raw materials are abundant, cost-effective, and sustainable.You can use: Fresh fish waste from processing plants, small, low-value fish that cannot be sold in the market, and fish meal or fish powder as supplemental raw material. The choice of raw material directly affects the nutrient content and quality of the final liquid fertilizer. Customers are increasingly asking about raw material cost for fish fertilizer production, and we help design flexible solutions that adapt to different local resources.

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Fish protein liquid fertilizer manufacturing

How to make fish protein liquid fertilizer step by step?

How much does the fish emulsion liquid fertilizer production plant cost?

Top 3 benefits of choosing YUSHUNXIN Fish Protein Liquid Fertilizer Manufacturing Equipment

What raw Materials are used for Fish Protein Liquid Fertilizer Production

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