Water treatment affects all of 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 intermediate water treatment in large buildings, and is directed toward the building manager or technician. Operation and maintenance of cooling towers and boilers will be discussed, along with control of water chemistry, dissolved oxygen, solids and bacteria that can lead to scaling, corrosion and fouling of water treatment systems, along with exposure to Legionnaires' disease.
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Training Time: 20 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English
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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 is conductivity? Conductivity is the reciprocal of electrical resistivity. It represents a material's ability to conduct electric current. In water, conductivity is directly related to the total dissolved solids (TDS).
How often should basic water chemistry levels be tested? Basic water chemistry levels should be tested daily by building maintenance staff.
What are the different types of cooling water systems? Cooling water systems come in three types: once-through, or single pass, closed-loop recirculating, and open-loop recirculating.
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.
Below is a transcript of the video sample provided for this module:
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