Tag: environmental engineering

Filtration of Water | Purification of Water | Part - 03 | Environmental Engineering

Filtration of Water | Purification of Water | Part – 03 | Environmental Engineering



Purification of Water | Filtration of Water
00:38 This sand required for filtration of the properties.

01:38 Slow Sand Filtration
Slow sand filtration is a type of centralised or semi-centralised water purification system. A well-designed and properly maintained slow sand filter (SSF) effectively removes turbidity and pathogenic organisms through various biological, physical and chemical processes in a single treatment step.

02:38 Rapid Sand Filtration
The rapid sand filter or rapid gravity filter is a type of filter used in water purification and is commonly used in municipal drinking water facilities as part of a multiple-stage treatment system.

03:30 Pressure Filtration
Pressure filters are in many respects similar to conventional rapid filters. The main differences are that the media is contained in a pressure vessel (such as a steel tank) and that they are operated under pressure provided by means of a pump or high-pressure water source on the influent side rather than gravity.
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Purification of Water Part 1 –
(Screening and Sedimentation)
Purification of Water Part 3 –
(Disinfection of Water)
Purification of Water Part 04 –
(Hardness & Softening of Water)
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Original Video Source

August 14, 2022
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How Do Water Treatment Plants Work?

How Do Water Treatment Plants Work?



For most everyone around the world, turning on your tap and getting fresh clean water is just a way of life. While this might seem to be a simple fact of modern civilization, it’s a relatively new innovation in the timeline of human development.

Access to fresh water is one of the largest drivers of creating a modern society, but what allows everyone access to seemingly endless supplies of potable water? It depends on where you live, but chances are behind your tap there’s a municipal water treatment plant.

There are two main types of water treatment plants: drinking water and wastewater plants. We’ll be focusing in on drinking water plants here, but if you’d like to learn about how wastewater is treated, you can watch a video on the topic here.

Both types of treatment plants serve the purpose of cleaning water, but in general, wastewater treatment plants will output water, or effluent, into streams or rivers and drinking water plants, or potable water treatment plants, will output their treated water into a city’s pipe distribution network.

The question still remains, how exactly does one treatment plant take dirty river or well water and turn it into water that is safe to drink? It involves a lot of processing using chemicals, filters, and removing all of the toxins and hazards from a given water source.

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CGI Snake by Chris Zabriskie is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
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Original Video Source

September 29, 2019
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