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Potable water treatment

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Without it we are dead! Water is essential, but what processes must it go through to become fit for human consumption? This free course, Potable water treatment, will guide you through the continuous cycling of water between land, open water surfaces and the sea before moving on to an overview of the water treatment and supply process.

After studying this unit you should be able to:

  • describe the operation and mechanisms of the hydrological cycle;
  • list and describe the major physical, chemical and biological characteristics of clean fresh water, and explain their effects on aquatic organisms;
  • explain the mode by which potable water is produced through the processes of screening, microstraining, aeration, coagulation and flocculation, sedimentation, flotation, filtration and disinfection;
  • explain how the issues of nitrates, trace organics, fluoridation and plumbo-solvency can be dealt with in potable water supply;
  • describe the main desalination processes used to produce potable water from saline or brackish sources;
  • explain the function of transmission mains, ring mains, service reservoirs and water towers, and discuss the merits and disadvantages of different types of piping materials.

By: The Open University

  • Duration 20 hours
  • Updated Wednesday 10th October 2012
  • Introductory level
  • Posted under Technology
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Potable water treatment

Introduction

Unit image

This unit is from our archive and it is an adapted extract from Environmental Control and Public Health (T210) which is no longer in presentation. If you wish to study formally at The Open University, you may wish to explore the courses we offer in this curriculum area. [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]

Without it we are dead! Water is essential, but what processes must it go through to become fit for human consumption? This unit will guide you through the continuous cycling of water between land, open water surfaces and the sea before moving on to an overview of the water treatment and supply process.

This unit is from our archive and is an adapted extract from Environmental control and public health (T210) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in this subject area.

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