Convenient flocculation – with a dosing station for flocculants

Conserving water resources, recovering more water – and at the same time reducing environmental impact, waste and energy consumption – that is AJF’s credo. As specialists in innovative water treatment systems for the concrete industry, it is our job to treat sludge from a wide variety of processing stages in an environmentally friendly manner. This includes the right dosing stations for flocculants and coagulants!

What does successful flocculation achieve in the dosing system?

Flocculation is a targeted water treatment process in sludge dewatering that transforms finely dispersed substances into large flocs. The secret? Agglomeration and coagulation through the addition of flocculants. Flocculation separates liquids and solids: only foreign substances that form larger units in the water can then be easily removed by sedimentation or filtration. Why don’t small solid particles accumulate on their own? Unfortunately, they all have the same surface charge – and repel each other. In order for them to collect into large particles, chemicals such as coagulants are needed to neutralise their charge – and thus bind them together. Polymer flocculants (as polyelectrolytes) in the form of granules or powder accelerate the formation of macroflocs.

What advantages do modern dosing stations offer?

In order for flocculants and auxiliary agents to effectively remove turbidity, suspended solids and other contaminants, they must be dosed precisely. This is where a modern dosing station simply lasts longer – thanks to powerful dosing pumps and the option of replacing individual system components as needed. A compact dosing station can be mounted on a wall mounting plate, floor console or in a chemical-resistant protective cabinet, depending on requirements – indoors or outdoors. The dosing station can be operated easily and conveniently by technical personnel after a short training session.

Your dosing station from AJF – single chamber, multi-chamber or on a pallet

AJF offers various types of machines – as dosing stations on pallets, with single-chamber or multi-chamber systems made of stainless steel – which are useful if you dose the coagulant in powder form in wastewater treatment. Three open, communicating chambers – equipped with protective grilles – ensure that the solution achieved can mature and be stored ideally. A flocculant dosing station prepares the polyelectrolyte solution appropriately and transports it evenly and precisely to the treatment plant. Best of all, all functions of a flocculant station can be fully automated, requiring minimal intervention from the operator.

How does a dosing station work?

A regulated gear motor drives the stainless steel coagulant dosing screw. The tap water supply has a control valve, an electro-hydraulic pressure monitor and a flow meter to indicate the throughput. An integrated water level sensor determines whether the water supply solenoid valve and powder dosing screw need to start or stop. Slow electric agitators with three-part agitator screws ensure that the powder dissolves well. The control panel complies with the EN 60439.1 CE directive. Also available as an option: an additional sensor that signals when the storage hopper is empty of flocculant powder.

Flocculant dosing stations: From manual to fully automatic, for small to large plants

By the way: Flocculant stations with a single-chamber system are available in fully automatic, manual or semi-automatic versions, depending on the requirements of your system; the metal components are made of unalloyed, galvanised steel. The single-chamber tank has a protective grille and a drain at the bottom. This system is particularly suitable for mobile or smaller plants. Of course, all our AJF flocculant stations score points with their compact dimensions, high capacity of tanks and storage hoppers, as well as high solution production and powder output. Whether a single-chamber or multi-chamber system or a plastic cistern (PE or PVC) structure on a pallet with a filling opening and bottom drain: every flocculant station has everything necessary for the proper preparation of the polyelectrolyte solution.

Treatment plants and flocculants from the premium manufacturer

AJF cooperates with leading global companies that have decades of experience in manufacturing treatment plants for cementitious water and sludge from industrial processes. With a direct line to them – not least when it comes to fast spare parts delivery. Which dosing station and which coagulant is the right one depends on which substances you need to separate – every AJF plant is designed according to individual requirements. Flocculation as a process is easy to implement. How sustainable this is depends on how you subsequently use the separated sludge. Because it contains chemicals, it makes sense to combine the actual flocculation with other processes.

Which solution is right for you?

Let’s talk about it – because production-integrated environmental protection is feasible!