Disc Filter RoDisc

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Huber Technology Inc.

Riyadh, Saudi Arabia

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Filterable solids being retained in the secondary clarifier effluent
Phosphorus reduction through upstream precipitation
Initial filtration for UV disinfection applications and drinking water recovery from surface waters

Activated sludge's poor settling behavior, inadequate tank depth, and high hydraulic loads are the most frequent reasons why secondary clarifiers function poorly. Secondary clarifiers frequently can't even guarantee the necessary solids retention with any degree of reliability. Flock overflow results in increased wastewater fees since it raises the COD, BOD, and phosphorus levels in the effluent and receiving watercourse.To separate suspended material, like sludge flocks, a filtration system that is subsequently installed offers a rapid and effective option. When used in conjunction with flocculation and before precipitation, a micro screen offers a simple way to reduce the amount of phosphorus in effluents to extremely low levels. This keeps waterways from becoming eutrophic and stops overgrowth of algae and water plants.
Style and Purpose
Our Disc Filter, the HUBER A horizontal shaft supports up to 35 vertical discs that are part of the RoDisc® filtering plant. During operation, the filtrate covers up to 65% of the disc surface.Twelve separate plastic segments, each with two filter plates, make up each filter disc. Filter mesh covers both sides of the filter plates. The mesh is fixed using a thermal method. If the mesh sustains damage, each section can be replaced separately. As small as 10 μm is the smallest mesh size currently in use. The HUBER Disc Filter RoDisc®'s modular design and tiny footprint allow it to be customized to meet any unique site needs.
The Disc Filter from HUBER A gravity-flow filtration system is called RoDisc®. The horizontal shaft receives the wastewater that needs to be treated. From there, the water enters the filter discs through apertures and exits the discs. During the filtration process, the filter discs initially stay in their resting posture. As a result of the solids being held on the inner disc surfaces, the mesh gradually becomes blinded, increasing the pressure differential. The water level in the tank is kept almost constant thanks to an overflow weir. The blinding process advances as the upstream water level rises.
The solids are automatically removed from the filter surfaces when the maximum pressure differential that has been predetermined is reached. The spray nozzle bars clean the filter material. The filtrate is used for backwashing; thus, no fresh water is needed because the particles are eliminated by the slow rotation of the filter discs in conjunction with high-pressure water jets that wash the filtrate through the mesh from the inside to the outside. The machine releases the solids and spray water axially after collecting them in a trough. While the filter discs are being cleaned, the filtration process never stops.

The RoDisc® HUBER Disc Filter's Applications
Wastewater treated by biological means being filtered:
When secondary clarifiers are too small or the activated sludge's settling behavior is inadequate, for example, the HUBER Disc Filter RoDisc® is often used to separate fine suspended material from biologically treated wastewater in municipal and industrial applications. Our RoDisc® HUBER Disc Filter consistently produces effluent values that are far higher than the necessary limit values for filterable solids. Moreover, it attains an additional noteworthy decrease in the concentrations of phosphorus.
Filtration to safeguard downstream treatment systems or boost their effectiveness:
An almost solids-free flow is necessary for several next treatment stages, such as UV disinfection or membrane filtration, to operate effectively, efficiently, and without requiring any trouble or maintenance. Our microfilters considerably lower the amount of suspended particles present. Microscreening reduces costs for downstream systems, more than offsetting the investment and operating expenses.
Water and wastewater treatment in industries:

Advanced wastewater treatment at source is mandated by new legislation regarding direct or indirect wastewater discharge. Wastewater recycling also necessitates the removal of sediments because process and service water must be almost completely free of solids.
Particular uses:

Wastewater in the pulp and paper sector.
Wastewater from enterprises that produce plastic.
Closing water loops and treating process and service water (e.g., in the food and chemical sector).
Elimination of microplastics.

The Advantages of RoDisc®, the HUBER Disc Filter

Compact design with high hydraulic throughput capability.
Low headloss gravity system; no wastewater lifting is necessary.
Significant decrease in phosphorus, BOD, COD, and filterable solids.
Standards for effluent are consistently satisfied. lower costs for the disposal of wastewater.
Thermal fixing of the mesh that is both chemically resistant and form-locked.
Since filtrate is used for cleaning, there is no need for an external water source.
For installation in a concrete tank owned by the customer or within a stainless steel tank.
Constant functioning even when backwashing.
easy replacement of a single filter element without the requirement for hoisting machinery.

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