Activated-sludge troubleshooting guidelines | Water Technology
Jun 19, 2014 · To solve a problem using guidelines and procedures: 1) identify the problem, 2) determine the most likely cause and 3) consider suggested remedies or corrective measures. In identifying a problem, visual observation of the treatment process is essential and settle-ability tests are vital. Settling-test observations lead to appropriate remedies ...
Bacteria and viruses commonly found in drinking water
Jul 31, 2014 · Here is a list of EPA regulated bacteria/viruses in drinking water, and their health risks: 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 ...
The basics of activated carbon adsorption | Water Technology
Feb 1, 2016 · Activated carbon removes water soluble organics and solids from water by backwashing. This MTZ has three working zones: Zone 1 (between A and B, a portion of the total length of the carbon bed) is completely used and no longer removes water-soluble contaminants. Zone 2 (between B and C) removes variable amounts of contaminants.
Production of High-Quality Demineralized Water for Steam …
Aug 17, 2021 · A demineralized water facility produces process water and boiler feed water for use in steam generation by boilers. It also returns steam condensate from plants and pretreats it. A demineralized water facility consists of the following: • Demineralized raw water tanks and raw demineralized water pumps.
Smoke Testing 101: An Introduction to Smoke Testing
Apr 1, 2002 · Smoke testing is an excellent method of inspecting both the mainlines, laterals and more. Smoke travels throughout the system, identifying problems in all connected lines, even sections of line that were not known to exist or thought to be independent or unconnected. Best results are obtained during dry weather which allows smoke better ...
Piping for water and wastewater treatment systems
Oct 28, 2021 · Piping is an important part of modern water and wastewater treatment systems, water pumping units, desalination units, cooling water systems and others. Piping systems are like veins of modern plants. The piping is used to carry water, wastewater, chemicals and mixtures from one location to another. The design, construction, operation and ...
Closed Cooling Water System Treatment and Monitoring
Nov 1, 2018 · P rimary cooling at steam generating power plants and many other heavy industries is a critical aspect of operation, and upsets can cost a great deal in lost efficiency and production. But often overlooked are auxiliary closed cooling water (CCW) systems, which also serve vital functions. Failure of a closed system has the potential to shut down a …
An in-depth look into iron and manganese treatment
Feb 7, 2012 · The pH of the water is another often overlooked factor in iron removal. The pH should be above 6.8 and preferably in the range of 7.5 to 8.5 for optimal removal. Oxidation/filtration technology utilizes either an oxidant (as described above) plus conventional or specialty media to oxidize and filter iron from water.
Troubleshooting a bladder pressure tank | Water Technology
Oct 13, 2010 · Troubleshooting guide. If it appears that a bladder tank is not operating correctly, check the tank’s air charge: Disconnect electrical power to the pump. Drain the tank by opening the closest faucet. Check the tank’s pressure by placing an air pressure gauge on the air charging valve on the top of the tank. Add air if the pressure is more ...
Mistakes to Avoid in RO Treatment Systems | Water Technology
Sep 1, 2011 · Pretreatment Issues. The most common cause of a complete failure of an RO application is inadequate pretreatment of the RO feed water. RO systems must be protected from incompatible contaminants, from the potential for scale formation, and from excessive fouling. Compromises made in the pretreatment methods, monitoring instrumentation, or ...
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