Flocculant PAC dosing device

Flocculant PAC dosing deviceIt is a crucial step in water treatment and sludge dewatering processes. PAC (polyaluminum chloride), as an inorganic polymer flocculant, its accuracy and uniformity of addition directly affect the coagulation and sedimentation effect and the operation of subsequent treatment units.

Main features and advantages

Accurate and stable dosing: The metering pump ensures the accuracy of the dosing amount, avoiding the instability of manual dosing.

High degree of automation: It can achieve fully automated operation, greatly reducing labor intensity and dependence on operators.

Good treatment effect: Stable dosing is a prerequisite for achieving good flocculation effect (large alum flowers, fast sedimentation), which can effectively reduce effluent turbidity, chromaticity, and COD.

● Save medication: Accurate dosing avoids the waste of medication and reduces operating costs.

● Flexible and adjustable: The dosage can be easily adjusted according to changes in water quality and quantity.

Integrated and small footprint: The complete equipment has a compact structure and is easy to install on site.

Selection and operation precautions of flocculant PAC dosing device

(1) Key parameters for selection:

▲ Maximum dosage (L/h): Determine the flow range of the metering pump based on the treated water volume and maximum dosage concentration (ppm).

▲ Required pressure (MPa): Determine the rated pressure of the metering pump based on the injection point position and pipeline loss.

▲ Medicine box volume: determined based on daily dispensing frequency and dosage.

▲ Control mode: Is it necessary to link with flow and water quality instruments.

▲ Material: Based on the corrosiveness of PAC, corrosion-resistant materials such as PVC, PP, PE, or stainless steel are usually selected.

(2) Key points of operation and maintenance:

▲ Regular cleaning: Regularly clean the dissolution tank, storage tank, and Y-shaped filter to prevent impurity deposition and algae growth.

▲ Pump maintenance: Regularly inspect vulnerable parts such as diaphragms and check valves.

▲ Concentration calibration: Regularly check and calibrate the concentration of the prepared medication.

▲ Prevent crystallization: When shutting down, rinse the dosing pipeline with clean water to prevent PAC from crystallizing and blocking the pipeline.