Electrochemical vs. chemical dosing

Item	Conventional dosing	JT-ECT electrochemical
Chemical purchase	Continuous purchase of scale/corrosion inhibitor and biocide; cost tracks raw materials	No water-treatment chemicals under normal operation
Blowdown	Blowdown carries phosphorus and chemicals; discharge restricted in some regions	Blowdown free of chemicals; cycles of concentration raised to the LSI limit, less blowdown
Cycles of concentration	Safety margin kept by experience; reluctant to raise it	Calcium hardness and alkalinity fall together; can reach the LSI limit
Corrosion control	Depends on inhibitor formulation and dosing consistency	The vessel itself is the cathode, under full cathodic protection
Scale removal	Chemical cleaning or manual cleaning during shutdown	Reciprocating comb scraper removes scale periodically; no polarity reversal or chemical cleaning
Daily operation	Periodic testing and manual dosing adjustment	Automatic PLC control; 4G remote monitoring of data and alarms
Upfront cost	Lower (dosing unit plus chemical inventory)	Higher equipment cost; payback must be assessed
Applicability	Universal — almost any system can be dosed	Must be recalculated from make-up water quality; not suitable for every system