The wastewater treatment process varies slightly from industry to industry and can be broadly divided into physical sedimentation, chemical and biological methods. Regardless of that method, all of them will be in contact with chemical solutions, and the corrosiveness of the solutions is greater or lesser according to different processes, such as neutralization reaction and redox reaction, which will use strong acid or alkali and are more corrosive, while extraction and other solutions are generally not very corrosive.

QEEHUA pump suggests choosing chemical pumps of suitable materials according to corrosive chemicals, and corrosion-resistant materials are generally available in FRPP and PVDF or CFRETFE.

Wastewater treatment process flow in focus.

Coagulation: Adding electrolytes to rubbery turbid liquid to coagulate the gelatinous substances in water and separate them from water.
Neutralization: neutralization of acid and alkali to achieve neutral pH.
Oxidation reduction: Oxidizing (or reducing) agent is added to oxidize (or reduce) the substances in the wastewater to harmless substances.
Electrolysis: Electrode plate is inserted into the wastewater, and when it is energized, the charged ions in the wastewater become neutral atoms.
Extraction: The solvent is separated out by using the relative density difference between the solvent and water.

QEEHUA PUMP series commonly used in wastewater treatment

Self-priming centrifugal pump, injection molded from acid and alkali resistant raw materials, has the advantages of compact structure, convenient operation and care, balanced operation, easy maintenance, high efficiency, long life, and strong self-priming ability, etc.

Magnetic drive pumps can be used to pump chlorine, potassium hydroxide and ferric chloride in wastewater treatment processes.

A vertical pump is a chemical pump with the motor shaft perpendicular to the horizontal plane, using centrifugal force to throw out the sewage. It can always maintain vibration-free bass operation during operation.

Metering pump (also known as dosing pump) is a fluid transfer machine whose outstanding feature is to maintain a constant flow rate, independent of discharge pressure.

Diaphragm pumps can convey liquids with low, medium and high viscosity, as well as liquids with high solids content. They can also handle many corrosive chemicals, such as acids, as they can consist of a wide range of valve materials and diaphragms.