FLOCCULANT DOSING SYSTEM

Serving best-in-class solutions, products, and services for construction, infrastructure, mining and aggregates, and waste water management Since 2023

What is a flocculant dosing system?

A flocculant dosing system is a device that mixes and delivers a flocculant solution to a water or wastewater treatment process. A flocculant is a chemical agent that causes suspended particles to clump together and form larger aggregates, called flocs, that can be easily separated from the liquid. Flocculation is an important step in many water and wastewater treatment processes, such as clarification, filtration, thickening and dewatering.

WORKING PRINCIPLE OF DOSING SYSTEM:

The flocculant solution is prepared by mixing a dry or liquid flocculant with water in a tank. The concentration and pH of the solution are adjusted according to the type and dosage of the flocculant.

– A metering pump or a dosing pump transfers the flocculant solution from the tank to the injection point in the liquid stream. The flow rate and pressure of the pump are controlled by a controller or a feedback loop to ensure accurate and consistent dosing.

– The flocculant solution is injected into the liquid stream through a nozzle or a static mixer. The injection point is selected based on the characteristics of the liquid stream, such as flow rate, turbulence, temperature, and pH. The injection point should ensure sufficient mixing and contact time between the flocculant and the suspended particles.

– The flocculant solution interacts with the suspended particles in the liquid stream, causing them to aggregate into larger flocs. The flocs settle faster than the individual particles, forming a sludge layer at the bottom of the tank or basin. The clarified liquid is then separated from the sludge and discharged or further treated.

FLOC DOSING SYSTEM optimises chemical usage to ensure the rapid settlement of solids from your wastewater and maximum efficiency from your wastewater treatment processes.

Efficient flocculent dosing

Our design features 3 mixing chambers which ensures even distribution of flocculent for the most efficient settlement of solids while optimising flocculent consumption for your material.

Deaeration chamber

After passing through the 3 mixing chambers the solution is delivered directly to your thickener via the deaeration chamber where it is mixed with the wastewater from your wet processing plant containing the minus 63 micron material.

Automatic flocculent dosing

Automatic dosing of flocculent to the correct concentration is possible as a result of the extensive testing of your material prior to equipment specification. Our AutoFloc system allows for variations in your feed material to be easily accommodated and ensures consistent performance from your FlocStation.

Thickener

Pre-mixed flocculent solution combines with wastewater to the desired concentration before entering a thickener tank where settlement of solids and water recycling is maximised. The integrated flocculation station allows for precise dosing of the pre-mixed flocculant for efficient settlement.