The core function of the Automatic Precise Dosing Control System is to automatically adjust chemical dosage according to water quality changes and ensure stable water‑treatment performance. Adopting closed‑loop control of “raw‑water quality monitoring → data transmission to PLC → dosage calculation via algorithm → dosing execution by metering pump → treated‑water quality feedback → dynamic parameter adjustment”, the system realizes accurate dosing of water‑treatment chemicals. It not only guarantees water quality safety but also reduces operating costs, serving as a core component of modern smart water plants.

Application scenario

• Tap‑water Treatment

PAC dosing before raw water enters the sedimentation tank. Dosage is dynamically adjusted according to raw‑water turbidity and flow rate to guarantee turbidity after sedimentation.
Sodium hypochlorite dosing after filter‑tank effluent. Based on on‑line residual‑chlorine monitoring, closed‑loop control is adopted to maintain disinfection performance.

• Sewage Water Treatment

PAC is dosed at the end of the biological reaction tank to keep total phosphorus within compliance standards;
Sodium hypochlorite is dosed after advanced‑treatment units (e.g. filter tanks);
PAM is dosed before secondary sedimentation tank and sludge dewatering to improve sludge settling performance and enhance sludge dewatering efficiency.

• Other Applications

Dosing of scale inhibitors and biocides for power‑plant raw‑water and circulating‑water systems; chemical preparation and dosing in medical‑health, environmental protection, chemical, petroleum and other fields.