DULCOPAC

Field of application

The following list of applications are general examples of generally suitable applications for this product. Please contact your local sales representative to talk about the applicable use of this product in your specific case / environment.

Micro-pollution removal in wastewater treatment plants

Injection of activated carbon slurry in the wastewater treatment process to remove micro-pollution by adsorption.

Pesticides, nitrates, organic materials in drinking water treatment plants

Injection of activated carbon slurry in the drinking water treatment process to treat taste, smell, and many other potable water parameters.

Industrial effluents treatment

Injection of activated carbon slurry in the industrial effluents to remove organic pollution before release in natural environment or reuse.

Powdered Activated Carbon (PAC)

Powdered Activated Carbon is commonly used to filter contaminants from water and air. It is produced in order to create a large number of small, low-volume pores that greatly increase the surface area available for adsorption and chemical reactions.

DULCOPAC consists of a gravimetric feeding system mounted under a storage silo. The PAC is fed gravimetrically into a wetting cone where it is mixed with water and conveyed to a buffer tank from which the slurry is pumped to the dosing points.

Function

• At low level, the weighing hopper is refilled with PAC from the storage silo with the discharge screw. Eventual arch buildings will be broken by Tomal arch-breaking system.
• A shut-off valve prevents additional PAC from falling into the hopper after stop of the discharge screw.
• The unique Tomal multicrew feeder feeds PAC into the wetting cone. The Tomal feeder, in combination with a gravimetric loss-in- weight system guarantees an optimal feeding accuracy.
• In the wetting cone the PAC is entirely wetted, in a controlled manner, with minimal amount of dilution water. The water flow is measured with a flow meter and the adequate amount of PAC is added, regulated by the loss-in-weight-system, to obtain a constant slurry concentration.
• The slurry created is further conveyed with a water eductor to a buffer tank.
• Finally, the slurry is pumped in a recirculation pipe to multiple injection points from where it can be dosed into the water to be treated for micro-pollution. The dosing of slurry is accurately controlled by a flow meter, and a regulating valve mounted on a distribution skid.
• The dosing rate from the system can be controlled based on the water flow into the contact basin.
• The unused slurry is conveyed back to the buffer tank in the recirculation pipe, The continuous recirculation ensures that the slurry is in constant motion to minimize the risk of sedimentation.
• The system can be delivered in single or dual design. The silo can be mounted at distance from the distribution skid. The system can generally be adapted to suit specific customer requests.
• Turnkey delivery from ProMinent including control cabinet with electrical installation, erection, and commissioning.
• CE-marking according to the Machine Directive 2014/34/EC.