Water treatment - Revision history

Designing Buildings at 09:34, 21 November 2022

2022-11-21T09:34:15Z

← Older revision		Revision as of 09:34, 21 November 2022
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	Purification is a type of treatment, but the two terms are not synonymous. Water purification is a specific aspect of water treatment that removes toxic materials (such as contaminants and pathogens) from the water in order to make it fit for consumption. While it is often incorporated into the treatment process, purification is not always required. For instance, purification may not be required for industrial purposes.		Purification is a type of treatment, but the two terms are not synonymous. Water purification is a specific aspect of water treatment that removes toxic materials (such as contaminants and pathogens) from the water in order to make it fit for consumption. While it is often incorporated into the treatment process, purification is not always required. For instance, purification may not be required for industrial purposes.
		+
		+	[https://www.bsria.com/uk/product/BLqmbr/pressurisation_of_closed_heating_and_cooling_systems_bg_822022_a15d25e1 Pressurisation of Closed Heating and Cooling Systems (BG82 2022)], by Rob Clemson, published by BSRIA in October 2022, defines water treatment as: ‘Any processes that improve the quality of water to make it appropriate for its intended use and reduce the risk of damage to the system. Detail on the topic can be found in BSRIA Guide BG 50.’

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Designing Buildings at 09:10, 25 November 2021

2021-11-25T09:10:52Z

← Older revision		Revision as of 09:10, 25 November 2021
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	* Water purification.		* Water purification.
	* Water quality.		* Water quality.
		+	* Water treatment programme.

	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Water]]		[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Water]]

Editor at 14:01, 16 November 2021

2021-11-16T14:01:07Z

← Older revision		Revision as of 14:01, 16 November 2021
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	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

		+	* Biological fouling.
	* BSRIA Water Treatment for Closed Heating and Cooling Systems BG 50/2021.		* BSRIA Water Treatment for Closed Heating and Cooling Systems BG 50/2021.
	* Clarified water.		* Clarified water.

Editor at 12:00, 16 November 2021

2021-11-16T12:00:37Z

← Older revision		Revision as of 12:00, 16 November 2021
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	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

		+	* BSRIA Water Treatment for Closed Heating and Cooling Systems BG 50/2021.
	* Clarified water.		* Clarified water.
	* Integrated water management.		* Integrated water management.

Designing Buildings at 07:33, 26 October 2021

2021-10-26T07:33:52Z

← Older revision		Revision as of 07:33, 26 October 2021
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	= Treating water =		= Treating water =

−	In order to sustain human and other forms of life, safe drinking water is essential, with good sanitation being the single most important determinant of public health. Typically, the first stage of the water supply process is the collection of untreated water (or raw water) from the natural environment in reservoirs, either from rivers or streams or from groundwater.	+	In order to sustain human and other forms of life, safe drinking water is essential, with good sanitation being the single most important determinant of public health.
		+
		+	Sanitation has improved globally in recent decades, but it is estimated that more than 2.5 billion people still do not have access to adequate sanitation and 1 billion do not have access to safe water. Forecasts suggest that by 2025, over half the world’s population will be vulnerable in some way related to water supply or sanitation.
		+
		+	Typically, the first stage of the water supply process is the collection of untreated water (or raw water) from the natural environment in reservoirs, either from rivers or streams or from groundwater.

	The collected water is then directed to a treatment facility, where it goes through a series of processes to remove unwanted substances (such as soil, sand, stones and vegetation) and harmful materials (such as chlorine and other contaminants) to produce water that meets specified requirements. The end result should be safe for use - whether for human consumption, washing, recreation, industrial applications, irrigation and so on - and free of undesirable, materials that could damage equipment during - or after - the water treatment process.		The collected water is then directed to a treatment facility, where it goes through a series of processes to remove unwanted substances (such as soil, sand, stones and vegetation) and harmful materials (such as chlorine and other contaminants) to produce water that meets specified requirements. The end result should be safe for use - whether for human consumption, washing, recreation, industrial applications, irrigation and so on - and free of undesirable, materials that could damage equipment during - or after - the water treatment process.

Designing Buildings at 07:33, 26 October 2021

2021-10-26T07:33:08Z

← Older revision		Revision as of 07:33, 26 October 2021
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	= Introduction =		= Introduction =

−	Water is a chemical compound that is essential for all known forms of life. As a transparent, tasteless, odourless and almost colourless substance~~, it~~ covers 71% of the Earth’s surface and is the main constituent of rivers, lakes, oceans and so on.	+	Water is a chemical compound that is essential for all known forms of life. It is a transparent, tasteless, odourless and almost colourless substance that covers 71% of the Earth’s surface and is the main constituent of rivers, lakes, oceans and so on.

	= Treating water =		= Treating water =

−	In order to sustain human and other forms of life, safe drinking water is essential, with good sanitation being the single most important determinant of public health. Typically, the first stage of the water supply process is the collection of untreated water (or raw water) ~~taken straight~~ from the natural environment ~~and collected~~ in reservoirs, either from rivers or streams or from groundwater.	+	In order to sustain human and other forms of life, safe drinking water is essential, with good sanitation being the single most important determinant of public health. Typically, the first stage of the water supply process is the collection of untreated water (or raw water) from the natural environment in reservoirs, either from rivers or streams or from groundwater.

−	The collected water is then directed to a treatment facility, where it goes through ~~various~~ processes to remove unwanted substances (such as soil, sand, stones~~, branches~~ and vegetation) and harmful materials (such as chlorine and other contaminants) ~~in order~~ to produce water that meets ~~certain~~ requirements. The end result should be ~~water that is~~ safe for use - whether ~~it be~~ for human consumption, recreation, industrial ~~application~~, irrigation~~, river management~~ and so on - and free of undesirable, ~~abrasive~~ materials that could damage equipment during - or after - the water treatment process.	+	The collected water is then directed to a treatment facility, where it goes through a series of processes to remove unwanted substances (such as soil, sand, stones and vegetation) and harmful materials (such as chlorine and other contaminants) to produce water that meets specified requirements. The end result should be safe for use - whether for human consumption, washing, recreation, industrial applications, irrigation and so on - and free of undesirable, materials that could damage equipment during - or after - the water treatment process.

	= Steps of water treatment =		= Steps of water treatment =

−	After collection, ~~there are various~~ stages of water treatment~~, including~~:	+	After collection, the stages of water treatment include:

	* Screening and straining. This is the basic removal of large elements such as organic and inorganic matter.		* Screening and straining. This is the basic removal of large elements such as organic and inorganic matter.
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	* Sedimentation. Large, insoluble particles created during coagulation and flocculation are permitted to settle to the bottom of large holding facilities where the treated water is kept. Cleaner water then separates out to be collected at the top. This process is sometimes called clarification.		* Sedimentation. Large, insoluble particles created during coagulation and flocculation are permitted to settle to the bottom of large holding facilities where the treated water is kept. Cleaner water then separates out to be collected at the top. This process is sometimes called clarification.
	* Filtration.In this stage, the water is distributed over filters to remove the smaller insoluble particles. With rapid gravity filters, water is passed through a tank of coarse sand which traps particles. With slow sand filters, water is slowly filtered through large beds of fine sand.		* Filtration.In this stage, the water is distributed over filters to remove the smaller insoluble particles. With rapid gravity filters, water is passed through a tank of coarse sand which traps particles. With slow sand filters, water is slowly filtered through large beds of fine sand.
−	* Disinfection. ~~Testing of the~~ water’s purity is ~~carried out~~ several times before a tiny amount (less than one milligram per litre) of chlorine is added to kill any organisms or bacteria which may remain.	+	* Disinfection. The water’s purity is tested several times before a tiny amount (less than one milligram per litre) of chlorine is added to kill any organisms or bacteria which may remain.
	* Storage and distribution. Once treatment is complete, the water is stored in covered reservoirs before being pumped out via a distribution network of pipes and pumping stations.		* Storage and distribution. Once treatment is complete, the water is stored in covered reservoirs before being pumped out via a distribution network of pipes and pumping stations.

	= Water treatment vs water purification =		= Water treatment vs water purification =

−	~~Water treatment is a broad term that is used to describe the general steps undertaken in the water treatment process.~~ Purification is a type of treatment, but the two terms are not synonymous.	+	Purification is a type of treatment, but the two terms are not synonymous. Water purification is a specific aspect of water treatment that removes toxic materials (such as contaminants and pathogens) from the water in order to make it fit for consumption. While it is often incorporated into the treatment process, purification is not always required. For instance, purification may not be required for industrial purposes.
−		+
−	Water purification is ~~a term used to describe~~ a specific aspect of water treatment that removes toxic materials (such as contaminants and pathogens) from the water in order to make it fit for consumption.	+
−		+
−	While it is often incorporated into the treatment process, purification is not always required. For instance, purification may not be required for industrial purposes.	+

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Editor at 16:49, 25 October 2021

2021-10-25T16:49:16Z

← Older revision		Revision as of 16:49, 25 October 2021
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	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

		+	* Clarified water.
	* Integrated water management.		* Integrated water management.
	* Water cycle.		* Water cycle.

Editor at 16:42, 25 October 2021

2021-10-25T16:42:23Z

← Older revision		Revision as of 16:42, 25 October 2021
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−	[[File:WaterTreatmentFacility.jpg]]	+	[[File:WaterTreatmentFacility.jpg\|link=File:WaterTreatmentFacility.jpg]]

	= Introduction =		= Introduction =
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	* Water management.		* Water management.
	* Water management strategies.		* Water management strategies.
		+	* Water purification.
	* Water quality.		* Water quality.
		+
		+	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Water]]

Editor: Created page with "File:WaterTreatmentFacility.jpg = Introduction = Water is a chemical compound that is essential for all known forms of life. As a transparent, tasteless, odourless and almo..."

2021-10-25T16:31:01Z

Created page with "File:WaterTreatmentFacility.jpg = Introduction = Water is a chemical compound that is essential for all known forms of life. As a transparent, tasteless, odourless and almo..."

New page

[[File:WaterTreatmentFacility.jpg]]

= Introduction =

Water is a chemical compound that is essential for all known forms of life. As a transparent, tasteless, odourless and almost colourless substance, it covers 71% of the Earth’s surface and is the main constituent of rivers, lakes, oceans and so on.

= Treating water =

In order to sustain human and other forms of life, safe drinking water is essential, with good sanitation being the single most important determinant of public health. Typically, the first stage of the water supply process is the collection of untreated water (or raw water) taken straight from the natural environment and collected in reservoirs, either from rivers or streams or from groundwater.

The collected water is then directed to a treatment facility, where it goes through various processes to remove unwanted substances (such as soil, sand, stones, branches and vegetation) and harmful materials (such as chlorine and other contaminants) in order to produce water that meets certain requirements. The end result should be water that is safe for use - whether it be for human consumption, recreation, industrial application, irrigation, river management and so on - and free of undesirable, abrasive materials that could damage equipment during - or after - the water treatment process.

= Steps of water treatment =

After collection, there are various stages of water treatment, including:

* Screening and straining. This is the basic removal of large elements such as organic and inorganic matter.
* Coagulation and flocculation. During coagulation, certain chemical agents (referred to as coagulants) are added to untreated water to make the particles in the raw water bind together (flocculation). After this process, the larger particles are more easily separated out for removal.
* Sedimentation. Large, insoluble particles created during coagulation and flocculation are permitted to settle to the bottom of large holding facilities where the treated water is kept. Cleaner water then separates out to be collected at the top. This process is sometimes called clarification.
* Filtration.In this stage, the water is distributed over filters to remove the smaller insoluble particles. With rapid gravity filters, water is passed through a tank of coarse sand which traps particles. With slow sand filters, water is slowly filtered through large beds of fine sand.
* Disinfection. Testing of the water’s purity is carried out several times before a tiny amount (less than one milligram per litre) of chlorine is added to kill any organisms or bacteria which may remain.
* Storage and distribution. Once treatment is complete, the water is stored in covered reservoirs before being pumped out via a distribution network of pipes and pumping stations.

= Water treatment vs water purification =

Water treatment is a broad term that is used to describe the general steps undertaken in the water treatment process. Purification is a type of treatment, but the two terms are not synonymous.

Water purification is a term used to describe a specific aspect of water treatment that removes toxic materials (such as contaminants and pathogens) from the water in order to make it fit for consumption.

While it is often incorporated into the treatment process, purification is not always required. For instance, purification may not be required for industrial purposes.

= Related articles on Designing Buildings =

* Integrated water management.
* Water cycle.
* Water management.
* Water management strategies.
* Water quality.