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Safety Lifting Applications

  • Force Main Systems Sulfide Odor Control with Hydrogen Peroxide

    Force main systems are typically high sulfide odor generators due to septicity conditions related to full pipe flow and a greater anaerobic slime layer (biofilm) thickness. Primary factors that influence sulfide loading generation in a force main include sewage temperature, BOD, retention time, pipe size and flow. Gaseous hydrogen sulfide (H2S) release at the force main discharge is usually the main concern related to odor and corrosion control needs; however, corrosion problems within the pipe can be of a concern (e.g. "crown cutting") at locations where air pockets can lead to concentrated H2S gas build up. Some basic considerations for assessing an appropriate sulfide odor treatment method for force main systems include: Retention time / duration of control Pump station type / cycling (e.g. vfd; start/stop, etc). Force main injection tap points, if any (e.g. air relief valves) Existence of intermediate re-lift stations or in series pump stations Manifold force main systems

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

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    Sampling for the water and wastewater industry

    Sampling requirements in the water and waste water treatment industry demand safe and reliable pump control. Many sampling applications require a suction lift. There is no better suction lift than that achieven using a peristaltic oump which lift up to 30 feet. Watson-Marlow pumps are perfect for automatic or manual sampling at the different stages of the treatment process.

    By Watson-Marlow Fluid Technology Group based in Falmouth, UNITED KINGDOM.

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