Talk:Water treatment

Wiki Education Foundation-supported course assignment

This article is or was the subject of a Wiki Education Foundation-supported course assignment. Further details are available on the course page. Peer reviewers: Lkashef.

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Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 5 September 2019 and 10 December 2019. Further details are available on the course page. Student editor(s): Agottschlich, Anhnguyen239.

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Wiki Education Foundation-supported course assignment

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 September 2021 and 6 December 2021. Further details are available on the course page. Student editor(s): Pegahabdolkarimi. Peer reviewers: Sepidehmsh.

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Coagulation

Coagulation disambiguation points here but there is only a mention in the introduction.

Reason for reverting edits by Caraskid

I don't think this article needs to have links to Cholera, Dysentery and Typhoid fever. I am fairly sure that there are many dozens of other diseases that can be spread by contaminated water and this article is not the place for listing all of them. I would suggest that Caraskid consider starting a new article entitled "Diseases spread by contaminated water" if he feels that it would be a useful contribution. - mbeychok 21:55, 18 August 2006 (UTC)

Check with the American Water Works Association (AWWA)

The AWWA can referee what goes in the Water Treatment article - that's what they do. Paulburnett 03:55, 19 February 2007 (UTC)

Sewer Treament vs. Water Reuse

I don't think sewer treatment should be listed in reference to Water Treatment, rather a good bridge between the two would be the topic on Water Reuse in which references to using Sewer Treated water (tertiary treatment) is discussed with reference to a "toilets-to-tap" discussion. —The preceding unsigned comment was added by 71.143.1.56 (talk) 22:28, 10 April 2007 (UTC).

Article length

Surely this topic deserves an importance greater than implied by its current length, and the few non-English versions! —DIV (128.250.247.158 (talk) 07:53, 27 March 2009 (UTC))

Article title

Shouldn't the title of the article be "Water and Wastewater Treatment"? Otherwise it is confusing. If "Water" in this article includes sewage, then what should the reader understand by "water purification"??? —DIV (128.250.247.158 (talk) 07:58, 27 March 2009 (UTC))

This article should be titled water treatment and a second article should be developed with material focused on wastewater treatment. As another wiki user suggested, water reuse should also be included and linked to the wastewater treatment article. Waterspecialist (talk) 20:34, 22 October 2009 (UTC)

Merge with appropriate technology

I don't agree that this article should be merged with the one called appropriate technology (AT). AT mainly discusses about the technologies used in the developing economy. The approach in the developed world is far different than the developing or underdeveloped worlds. —Preceding unsigned comment added by Wiki Pushkar (talk • contribs) 04:41, 1 April 2009 (UTC)

Agreed. Sportyyyy (talk) 18:51, 24 August 2009 (UTC)

The water treatment page should be left as is and expanded with greater detail on water treatment in general by referencing many great resources available through a leading industry organization (www.awwa.org). AT could be a linked document but is very focused on developing nation approaches. These approaches are not consistent with developed nation approached based on the scale of projects. An example is the New York disinfection water treatment project which is close to 2 billion gallons per day of treatment capacity. Waterspecialist (talk) 20:32, 22 October 2009 (UTC)

Agreed that is should be left. Removing tag. --MWOAP (talk) 01:08, 15 December 2009 (UTC)

This pages needs to be edited

I feel this article needs to be carefully edited. There are some statement which describe only half truth. The title also needs to be changed to water and wastewater treatment, or alternatively, need to create a separate article for wastewater treatment leaving a hyperlink on this page. —Preceding unsigned comment added by Wiki Pushkar (talk • contribs) 08:19, 2 April 2009 (UTC)

Article scope

I realize that this not a highly active article but I'm looking to get some input what exactly this article should encompass. What I got from reading an old merge discussion, found here, is that this article should be a general overview of water treatment.

There has also been some discussion that wastewater treatment (WWT) should not be included in the water treatment (WT) article. I am going to operate under the assumption, based on the content of the article, that WWT is a subcategory of WT. Could other editors weigh in on if a distinction should be made between WWT and WT in this article?

The broad treatment categories that I think should fall under Water Treatment and have content in this article are:

• Water purification
• Industrial wastewater treatment
• Sewage treatment.

Some question to further the discussion.

1. To what degree should the more specifics treatment categories be included?
2. What should useful overview and/or summary include? (Process, reasons for treatment, technologies, etc.)
3. Should the article reflect historic treatment methods in addition to current treatment? (May overlap with History of water supply and sanitation)
4. Include a regulatory and organization section(s)?
5. Should the article be strictly technology and engineering focused?

Any feedback would be helpful. Thanks — Rɑːlɑːjər ^talk 06:17, 17 January 2011 (UTC)

Changing the title

I am changing the title of the article to Water and Wastewater Treatment — Preceding unsigned comment added by Push desh (talk • contribs) 07:40, 31 May 2012 (UTC)

On second thought, the article does cover both cases, so I think its a good idea. PAR (talk) 12:22, 31 May 2012 (UTC)

I agree with comments made above that the title "water treatment" is quite misleading here. Water treatment should be for potable water treatment only. The other process - wastewater treatment - does not fit under "water treatment". What ever happened to the suggestion of changing the title to "water and wastewater treatment"? But I actually think we are better off splitting of the content from this page that is not about potable water treatment and move them to the page on "wastewater treatment". At the moment, the page on "wastewater treatment" redirects to here which I think is wrong. I made a redirect to "sewage treatment" but someone reverted that. I think the page on "sewage treatment" should actually be renamed to "wastewater treatment" and include municipal wastewater treatment and industrial wastewater treatment. EvM-Susana (talk) 18:33, 27 December 2014 (UTC)

Agree a content fork would be wise. The topics have little in common. LeadSongDog come howl! 04:42, 29 December 2014 (UTC)

How does a content fork work? In the meantime we now have a new page on "wastewater treatment plant": https://en.wiki.x.io/wiki/Wastewater_treatment_plant . So this page on "wwater treatment" could be re-done to only focus on raw water treatment (I have already started to do so). EvM-Susana (talk) 10:45, 29 December 2014 (UTC)

wp:CFORK discusses it, but isn't big on the 'how'. LeadSongDog come howl! 02:30, 30 December 2014 (UTC)

Just moved over information on wastewater treatment to the wastewater treatment page and added a link to the page in the "See also" section of this page. Bonnie (talk) 00:15, 24 March 2019 (UTC)

History of water treatment

Does Wikipedia have an article that includes information on the history of water treatment?

Did the Greeks or the Romans treat their water supplies? What about 1000 CE? 1500, 1700, 1900?

For all that can be told from this article, water was left untreated prior to the start of Wikipedia.

I know nothing myself about that topic, which is why I came here looking for information on it. I was greatly disappointed to find nothing at all!

Given that water may be the main cause of the next world war if any, it would be helpful to know a bit about its history. Those who don't know their history are doomed to repeat it. Vaughan Pratt (talk) 03:40, 27 April 2016 (UTC)

There is some content at Water purification#History for drinking water treatment and for sewage treatment there is a short section at Activated sludge#History but not a lot more. I agree that this is an area that needs developing by somebody with access to a technical library. Very little of this material appears to have been digitised and put on the web.  Velella  ^{Velella Talk}   07:54, 27 April 2016 (UTC)

I have added a short history section now and a link to the main page where this is dealt with (and which could and should be improved!): history of water supply and sanitation. I think one problem we have is that historical information is spread over several pages, e.g. why do we even have a page on water treatment separate from water purification; there is bound to be overlap; there is also overlap with water supply. EvMsmile (talk) 01:06, 28 April 2016 (UTC)

Notable Examples

The current "notable examples" section of this page seems to be an advertisement for NEWater. It's the only company and example mentioned in that section, and that application isn't even particular notable, but is done many place by many different companies across the world. Helpinghappy (talk) 18:32, 22 March 2018 (UTC)

Competitions

I have removed the 'Competitions' section. This section publicises two competitions that are not relevant to 'Water treatment'. These are the same competitions that @Wyn.junior: the author publicised in the now deleted Body of water cleaning article and the removed 'Body of water cleaning'section from this page. Just Chilling (talk) 21:47, 6 March 2019 (UTC)

Ok. What article are they relevant to? Have clean rivers and lakes is extremely notable and necessary for humanity's survival. So please tell me.--Wyn.junior (talk) 21:50, 6 March 2019 (UTC)

I would suggest the relevant bits should be incorporated in Lake_Erie#Water_quality_issues_and_restoration and Lake Jesup. See also Water_pollution#Control_of_pollution ...Jokulhlaup (talk) 08:43, 7 March 2019 (UTC)

Content about water treatment technologies - anything useful here?

I have just cut out the following text blocks from water issues in developing countries. Is any of this useful either for this article or for the articles on Reverse Osmosis or Distillation: +++++++++++ Common Large Scale Water Treatment Technologies:

• Distillation - The processes of water distillation are solely defined by the similar processes of desalination units, thermal evaporation, and condensation. It involves the process of vaporization of a substance at determined boil to convert water from its liquid state into vapor then subsequently condense it back into liquid; separating itself from the initially concentrated particles and effluent. The same concept proceeds with any other type of contaminated water. This process provides consistent purified water that is separated from contaminants rather than directly filtered, yet has drawbacks on mechanical maintenance, costs on electricity, and concentrates with lower boiling points have to be filtered separate from the system. In water distillation, water is heated to its boiling point, resulting in condensation, and separates itself from any of its concentrated impurities, many of which are commonly chemical constituents of lead, copper, municipal fluoride, chlorine, and other minerals and chemicals. Distillers produce fresh water free of contaminants, along with some particle residue. Some of these particles are minerals ideal for the human body, making it viable drinking water. Distilled water is also utilized in common mechanical applications including the topping off of lead acid batteries capacity, non-corrosive cooling for heat exchange in systems such as jacket water in engines and automotive vehicles, or water-cooling systems in computers. Although it is ideal, as a result of molecular interactions between chemicals such as inter-molecular forces, most distillation systems lack actual 100.00% removal of unwanted constituents that may still be present, much of which is fluoride. In that, distillation is rather notable for its high energy consumption rates and is increasingly being replaced by current membrane technologies, specifically reverse osmosis (RO) membranes as RO's are more energy efficient for water desalination.
• Reverse Osmosis - One of the popular commercial competitors with water distillation, which is commonly referred to as one of the main filtration methods, is reverse osmosis. Reverse osmosis membrane technology has been reliable and developed for about 50 years and is the leading technology for desalination today. Reverse osmosis is a biological process used for the removal of dissolved solids within water. By use of water pressure and a filter instead of chemical or mechanical systems, this particular water treatment system is more energy efficient than when compared to distillation. In the beginning of installation, reverse osmosis is known to be competitive with distillation in making purified water for human consumption. Reverse osmosis is done by filtration of effluent materials from the water molecules such as most dissolved salts, bacterium, organics, and common constituents like chlorine and fluoride via high pressured water. This pressured water is sent through a cross-filtration system that prevents build up between filters. These specialized filters are known as semipermeable membranes that only let particular molecules to travel through, allowing direct filtration of salt from seawater. Reverse osmosis systems use kinetic energy of incoming water pressure instead of electricity to allow the passage of the water through these filters, pushing out water and leaving the contaminants behind. On top of mitigating the energy costs, primary RO unit management is simple because the filters just need to be replaced on a yearly basis. On the adverse side, as a result of impermanence, the membranes can age with wear and tear on the pores, allowing some viruses, bacteria, pharmaceuticals, pesticides and other contaminants to pass through them.

+++++++++ EMsmile (talk) 01:29, 26 March 2021 (UTC)

References

Reworking to bring it back to a high level overview article

This article should be a high level overview article and not go into detail for those topics which are in dedicated sub-articles, i.e. water purification, wastewater treatment, industrial water treatment. It could probably even culled and condensed further. Otherwise we get the same info on processes and technologies listed in several articles. EMsmile (talk) 12:06, 13 January 2023 (UTC)

original research

Found many paragraphs completely not sourced/linked with reliable sources. I didn't put original research after each line, but the page should be completely improved. Fund Barra (talk) 18:31, 2 March 2023 (UTC)

Can you describe new methods of waste management

Making less trash,reusing it and recycling it 2402:8100:3906:9366:0:0:0:1 (talk) 16:12, 4 November 2024 (UTC)