Customer Challenges in Wastewater Filtering
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Frequent clogging and downtime
Traditional or older static screens often suffer from rapid fouling, especially when handling wastewater with high fat or fiber content. This necessitates frequent manual cleaning or causes the system to halt operations, leading to unplanned downtime and high maintenance labour costs.
Inefficient solids separation
Many filtering systems struggle to effectively capture the fine particles, resulting in a higher concentration of solids entering downstream treatment processes. This often requires larger, more robust, and thus more costly downstream treatment steps to achieve the desired water quality.
High water consumption for cleaning
Backwash systems in some filters can be inefficient, requiring a substantial volume of clean water for the wash cycle. This adds to the overall operational expenditure, particularly in water-scarce regions or for industries aiming to minimize their water footprint.
Our solution and how it works?
The NTF Drum Screen provides a continuous, self-cleaning mechanism for highly effective fine particle removal.
Wastewater is fed onto an adjustable distribution plate, which directs it inside the rotating performed drum.
The liquid passes through the drum's perforations to become effluent, while solids are retained on the inner surface.
A screw inside the drum continuously transports the captured solids (screenings) toward the end of the unit, where they discharged into a collection container.
A spiral brush is installed above the drum, rotating in the opposite direction to constantly clean the drum surface. Additionally, spray nozzles are used to clean both the perforated drum and the brush, ensuring sustained high-performance and minimizing maintenance needs.
Customer benefits
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Optimized performance and capacity
The NTF product line covers the whole range of water intake until a max capacity of 600 m3/h, ensuring a matching unit for the flow requirements (NTF 050, NTF 100, NTF 200. NTF 300, NTF 400).
Reduces operational labor and costs
The integrated brush and spray nozzle system for cleaning dramatically reduces the need for manual intervention and maintenance, This automatic self-cleaning capability translates directly into lower operational labor costs and more reliable, uninterrupted processing time.
Superior effluent quality
The fine perforations and continuous, robust separation process enable the NTF to achieve excellent dine particle removal. This often results in a higher-quality effluent, potentially reducing the load on subsequent treatment stages and helping to achieve compliance with discharge regulations.
Robust and durable design
The NTF drum screen is constructed with a stainless-steel casing and includes an overflow discharge pipe as a safeguard. This robust design ensures a long service life and reliable operation even in the challenging, corrosive environment of industrial wastewater treatment.
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Frequently asked questions
The separation size is determines by the perforation size of the drum. The stated capacity of 600 m3/h is based on 1 mm perforations, which is effective for fine particle removal. Custom perforations sizes may be available depending on your specific applications needs.
The internal screw transports the solids to the screenings outlet, from which they are discharged. The client must provide a suitable skip or bin for the collection and disposal of these removed materials.
They serve as the unit's self-cleaning system. The brush rotates against the drum to loosen material, while the spray nozzles wash the drum surface and the brush, preventing screen blinding and maintaining filtering efficiency.