The basics of activated carbon adsorption | Water Technology
2016年2月1日 · Physical phenomena. Because of its rare characteristics, activated carbon possesses an exceptional ability to capture water-dissolved contaminants that include taste-, odor-, color- and toxic-promoting species.
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Water Technology provides water treatment professionals with news and information on industrial water and wastewater management topics including treatment, monitoring, storage, disposal and reuse.
Best practices for collecting water samples
2014年10月8日 · 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.
Piping for water and wastewater treatment systems
2021年10月28日 · 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 …
5 key performance indicators in reverse osmosis operation
2015年12月22日 · The key to the success of any reverse osmosis operation is the design and attention to pretreatment equipment. Aside from multimedia filtration for the removal of suspended particles and colloidals, sodium regenerated ion exchange is occasionally used as pretreatment for RO systems.
Back To Basics: Mechanical Seals for Water and Wastewater Pumps
2011年6月30日 · Main elements of a mechanical seals. All mechanical seals are constructed with the following basic sets of parts: A set of (very flat) machined and lapped primary sealing faces: The very close (near) contact between these two flat mating surfaces, which are perpendicular to the shaft, minimizes leakage.
Activated-sludge troubleshooting guidelines | Water Technology
2014年6月18日 · 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.
Bacteria and viruses commonly found in drinking water
2014年7月30日 · 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 …
Smoke Testing 101: An Introduction to Smoke Testing
2002年3月31日 · Used extensively for over 40 years, smoke testing has proven to be a vital ingredient of successful inflow and infiltration (I&I) studies. It is as important now as it has ever been as growing municipalities increase demands on …
7 common types of industrial wastewater equipment
2018年2月23日 · Motivating factors for industrial wastewater treatment beyond compliance. Compliance with tightening federal regulations for wastewater treatment, handling and disposal, such as the Clean Water Act, the Resource Conservation and Recovery Act, and the Safe Drinking Water Act, requires plant management to be focused on the wastewater issue.