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4 days ago · Water Technology provides water treatment professionals with news and information on industrial water and wastewater management topics including treatment, monitoring, storage, disposal and reuse.
Piping for water and wastewater treatment systems
Oct 28, 2021 · As another rough indication, based on simplified equations, the following formula can be used for the first guess: pressure drop ~ L V 2 / D where: L is the length of the pipe, D is the hydraulic diameter of the pipe, and V is the average velocity of the fluid flow (equal to the volumetric flow rate per unit cross-sectional wetted area). Typically, the velocity is …
Bacteria and viruses commonly found in drinking water
Jul 30, 2014 · Legionella, a bacteria found naturally in the environment — typically in water, thrives in warm waters; this bacteria in water is a health risk if aerosolized (e.g., in a shower or air conditioning system) and inhaled, resulting in a type of pneumonia known as Legionnaires disease. Enteroviruses are small viruses, such as polioviruses, echoviruses and …
Production of High-Quality Demineralized Water for Steam …
Aug 17, 2021 · R-OH + H 2 SiO 3 → R-HSiO 3 + H 2 O Mixed bed polisher . Most of the ions, including silica, are removed by the cation exchanger, anion exchanger and degasifier. To produce the best quality treated water, it is passed through a mixed bed polisher, which contains both R-H and R-OH resins.
The basics of industrial water treatment | Water Technology
Aug 6, 2024 · Some of the most common of these include raw/incoming water treatment, boiler feed water treatment (chiefly focused on combatting scale/mineralization of a heat exchanger surfaces), cooling tower water treatment systems to keep heat exchanger and chiller thermal energy transfer surfaces clean from scale and bio foulants, or wastewater treatment to meet government discharge requirements.
Best practices for collecting water samples
Oct 8, 2014 · In order to get the most accurate results, samples need to be collected properly. While every lab may have their own set of sampling standard operating procedures (SOP), there are some common best practices for collecting samples.
Evoqua Water Technologies
Dec 29, 2020 · A global leader in helping municipalities and industrial customers protect and improve the world’s most fundamental natural resource: water. We have a more than 100-year heritage...
Boiler corrosion: Mechanical and chemical methods for control
May 2, 2023 · In the condensate piping, corrosion is mainly caused by the formation of carbonic acid. When the condensate travels back to the feedwater, CO 2 (carbon dioxide) absorbs into the water and forms H 2 CO 3 (carbonic acid). With such high-purity water in the condensate, it does not take much dissolved CO 2 to lower the pH to a corrosive range. Higher makeup alkalinity will increase the likelihood ...
Activated-sludge troubleshooting guidelines | Water Technology
Jun 18, 2014 · Abounding remedies. Excess organic load can be remedied by reducing the waste-activated sludge (WAS) rate by an amount less than 10% per day, to return to proper loading parameters and increase the returned activated sludge (RAS) rates.
Microorganisms in activated sludge | Water Technology
Jun 23, 2014 · Filamentous images are below: 5. Algae and fungi which are photosynthetic organisms and generally do not cause problems in activated sludge treatment systems, however there presence in the treatment system usually indicate problems associated pH changes and older sludge.. Fungi image is below: Microorganisms in activated sludge has been described above, however if you have specific issues ...