Sample interview questions: How do you determine the appropriate chemicals or additives to use for water treatment?
Sample answer:
As a Plumbing > Water Treatment Technician, determining the appropriate chemicals or additives for water treatment requires a thorough understanding of water quality parameters and the specific issues that need to be addressed. Here’s a detailed and considerate response to your question:
To begin with, the first step in determining the appropriate chemicals or additives for water treatment is to conduct a comprehensive water analysis. This analysis helps identify the composition of the water, including its pH level, hardness, presence of minerals or contaminants, and any specific issues such as iron or manganese deposits, bacteria, or excessive chlorine levels.
Once the water analysis is complete, it is essential to assess the desired outcome of the water treatment. This could involve various objectives, such as improving taste and odor, reducing hardness, removing specific contaminants, or disinfecting the water supply.
Based on the water analysis results and the desired outcome, a Plumbing > Water Treatment Technician will refer to a range of industry-specific resources, such as the Water Quality Association (WQA) guidelines, manufacturer specifications, and local regulations, to determine the appropriate chemicals or additives to use.
For instance, if the water analysis indicates a high level of hardness, the technician may recommend the use of a water softener system. This system typically employs ion exchange resins, which replace calcium and magnesium ions with sodium or potassium ions, effectively reducing water hardness.
In cases where the water supply is contaminated with bacteria or other microorganisms, disinfection is crucial. Commonly used disinfection methods include chlorine, chloramines, or ultraviolet (UV) light. The choice of disinfectant depends on factors su… Read full answer
Source: https://hireabo.com/job/12_0_13/Water%20Treatment%20Technician