What Is a Walchem?
Walchem is a comprehensive water treatment controller developed by Iwaki Corporation.
Walchem is a collective term for water treatment controllers developed by Iwaki Corporation. In the realm of water treatment, various indicators gauge the purity of water, including pH, ORP (Oxidation-Reduction Potential), and electrical conductivity.
pH serves as an indicator to assess the acidity or alkalinity of a solution, and in the context of wastewater, it is crucial to adjust the pH within the range of 5.8 to 8.6 to ensure that it does not adversely affect organisms and crops.
ORP measures the strength of water’s oxidizing or reducing power, indicating the adequacy of oxygen in the water. Unlike the similar indicator DO (Dissolved Oxygen), ORP is advantageous in detecting oxygen deficiency as it can take negative values.
Electrical conductivity reflects the ease with which electricity flows through a substance, and it increases when there is a high concentration of impurities such as ions. This becomes crucial in industries like semiconductor manufacturing where ultra-pure water is a necessity.
Walchem has the capability to measure and control these three indicators simultaneously in a single unit.