CE 370 Introduction to Water and Wastewater Treatment Plants

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CE 370Introduction to Water and Wastewater
Treatment Plants
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Types of Units

• Operations
• Sedimentation, filtration, flotation
• Processes
• Coagulation, GAC adsorption, chlorination,
  activated sludge

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Water Treatment Plants

• Common Surface Water Treatment Plants
• Filtration
• Softening
• Chlorination
• Common Groundwater Treatment Plants
• Softening
• Gas striping
• Chlorination

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Degree of Treatment
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Other Parameters that Affect the Selection of the
Degree of Treatment

• Physical Characteristics
• Inorganic Chemicals
• Organic Chemicals
• Radionuclides
• Ease of removal by the selected treatment scheme

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Rapid Sand Filtration Plant
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Design Parameters

• The plant is designed based on the average flow
  on the day of maximum demand
• The clear well, which provides storage, is
  designed so that the plant may operate at a
  constant rate on the day of maximum demand

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Lime-Soda Softening Plant
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Groundwater Treatment Plant
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Wastewater Treatment Plant

• Activated Sludge Processes
• Tertiary Treatment
• Physical-chemical Treatment
• Activated Sludge for Industrial Wastewater
• Completely mixed
• Dispersed plug-flow
• Aerated Lagoons for Industrial Wastewater

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Activated Sludge Plant
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Tertiary Treatment Plant
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Physical-Chemical Treatment Plant
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Completely-Mixed AS Process
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Dispersed Plug-Flow AS Process
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Aerated Lagoon System