Your challenges
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High operational costs
Traditional sludge dewatering systems can be energy-intensive and require frequent maintenance.

Variable sludge composition:
Fluctuating sludge characteristics impact the performance and consistency of dewatering processes.

Environmental compliance:
Tightening environmental regulations demand low-emission, low-noise, and resource-efficient technologies.
How does it work ?
The process
The sludge dewatering screw press (NSP) uses a wedge-wire drum combined with a unique hose flocculator to separate solids from liquids efficiently. As sludge enters the system, it is conditioned by the hose flocculator, ensuring consistent floc formation even when sludge characteristics vary.
The rotating screw moves the sludge through the drum, where water is gradually removed. An automatic washing system keeps the filtration surface clean with minimal water usage, all while avoiding the wear and tear seen in moving-disc designs.
Screw press applications
- Municipal wastewater treatment: The screw press (NSP) efficiently handles both primary and secondary sludge streams, helping municipalities reduce disposal costs while meeting strict environmental regulations.
- Meat, poultry, and fish processing: It reliably dewaters high-organic sludge from protein-rich effluents, reducing odor issues and improving downstream handling.
- Brewery and beverage production: The screw press (NSP) manages spent yeast and organic sludges, supporting breweries in maintaining clean operations with low operational costs.
- Dairy and food manufacturing: It effectively separates solids from wastewater high in fats and proteins, ensuring compliance and optimizing plant hygiene.
- Paper, pulp, and plastic recycling industries: The specialized NSP-M model tackles fibrous and abrasive sludges, ensuring durability and efficiency in demanding industrial environments.
- Pharma and chemical wastewater treatment: The screw press (NSP) provides consistent dewatering for chemically complex sludges, supporting safe and compliant waste management in sensitive sectors.
Customer benefits
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Lower costs
The screw press (NSP) reduces both sludge disposal and operational costs through its highly efficient dewatering process. By producing a drier sludge cake, it minimizes transportation and landfill fees. The system's low installed power requirement also translates to significantly reduced energy bills over time. Additionally, minimal mechanical wear lowers maintenance frequency and spare part costs.

Adaptability
The screw press (NSP) is engineered with a hose flocculator that adjusts to changing sludge compositions in real-time. This adaptability ensures consistent dewatering performance, even when the incoming sludge varies in thickness or content. It eliminates the need for constant manual adjustments or additional chemical dosing. This makes it ideal for facilities dealing with variable influent conditions

Sustainability:
Designed with environmental considerations in mind, the screw press (NSP) operates with low energy consumption and produces minimal noise, contributing to a reduced carbon footprint. Its automatic washing system conserves water by efficiently cleaning the unit without excessive usage. The screw press (NSP) low metallic wear and tear not only extend its lifespan but also reduce the frequency of part replacements, minimizing waste. Collectively, these features support sustainable wastewater management practices.

On-site demonstrations:
Our mobile units allow potential customers to test performance under real sludge conditions.

Key figures
"Optimize your waste management with our innovative sludge dewatering screw press (NSP) , engineered for superior efficiency and reliability "
NSI Screw Press (NSP)

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Frequently asked questions
What types of sludge can the NSP handle?
The NSP is suitable for both primary and biological sludge. It also includes a specialized NSP-M version for fibrous or abrasive sludge found in industries like recycling or pulp and paper.
How does the NSP reduce operational costs?
With its energy-efficient design, low-maintenance components, and adaptive sludge handling, the NSP lowers electricity and maintenance expenses significantly.
Can I test the NSP before purchasing?
Yes! NSI offers a mobile demonstration unit to evaluate performance under your site's actual sludge conditions.es the flotation layer with minimal backflow, ensuring consistent sludge removal and maintaining optimal effluent quality.