Water Treatment Basics

SKU: RVI-11520Duration: 20 Minutes

Pay-per-view (PPV) format perfect for individual users.

Get immediate access to this interactive eLearning course online. Must be used within 30 days, expires 48 hours after launch.

Language:  English

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Course Details

Specs

Training Time: 20 minutes

Compatibility: Desktop, Tablet, Phone

Based on: Industry Standards and Best Practices

Languages: English

Water treatment affects our everyday lives, from the water we drink to the sewage we flush, from the wash water we discharge to the cooling water used in manufacturing and in buildings. This course will cover the basics of water treatment in large buildings and is directed toward the building manager or technician. Operation of cooling towers and boilers will be discussed, along with control of scaling, fouling, pH and bacteria that can lead to Legionnaires' disease.

Learning Objectives

  • Identify the steps in maintaining proper water treatment
  • Define terms related to water treatment
  • Recognize what causes slime and scale, and the impact they have in a water system
  • Identify and recognize the conditions that contribute to the development and growth of Legionella pneumophila
  • Differentiate between open-loop and closed-loop water systems

Key Questions

The following key questions are answered in this module:

What is the purpose of water treatment?
The primary purpose of water treatment in industrial systems and buildings (cooling towers, boilers, and chillers) is to reduce the costs of operating these large and often expensive pieces of equipment.

What are safety procedures to know when working with non-potable water or chemicals?
After working with any non-potable water or chemicals, including acidic or caustic water or chemicals, workers should thoroughly wash their hands with soap and water. Any other skin that has come in direct contact with non-potable water or chemicals should also be thoroughly washed with soap and water.

What is biofilm?
Biofilm or "slime" is a layer of bacteria that attaches itself to a surface such as piping, valves and cooling towers as a result of a poor biocide program. Biofilms can be beneficial in cases, but they are detrimental in most water treatment applications.

What is the purpose of adding chemicals as part of water treatment plans?
The purpose of chemical treatment are to control PH, reduce scaling, and reduce biofouling.

What are some recommendations to reducing the risk of Legionnaires disease?
Legionella bacteria are found naturally in freshwater and can contaminate hot water tanks. Recommendations for reducing the risk of Legionnaires' disease include preventing stagnation, preventing biofilm buildup, periodically disinfecting the system, and reducing the production of aerosols.

Sample Video Transcript

Below is a transcript of the video sample provided for this module:

Total Dissolved Solids, abbreviated as TDS, is a measure of the dissolved constituents in water. These dissolved constituents (also called ions, minerals or salts) include common elements such as calcium, sodium, chloride, and sulfate. Here is a typical chemical composition of groundwater or surface: In contrast, here is the average chemical composition of seawater, which has a much higher TDS value: TDS is sometimes confused with Total Suspended Solids or TSS. TSS comprises particulate in water with a size greater than 0.45 micron, so this material can be removed with a filter. TSS is visible in water (generates cloudiness), while TDS constituents are dissolved and therefore not visible to the naked eye.Total Dissolved Solids, abbreviated as TDS, is a measure of the dissolved constituents in water. These dissolved constituents (also called ions, minerals or salts) include common elements such as calcium, sodium, chloride, and sulfate. Here is a typical chemical composition of groundwater or surface: In contrast, here is the average chemical composition of seawater, which has a much higher TDS value: TDS is sometimes confused with Total Suspended Solids or TSS. TSS comprises particulate in water with a size greater than 0.45 micron, so this material can be removed with a filter. TSS is visible in water (generates cloudiness), while TDS constituents are dissolved and therefore not visible to the naked eye.
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