Archive for the ‘Waste Water’ Category

New 3-Inch AODD pump

Tuesday, June 12th, 2018 von admin

At Achema 2018 Aro introduced the new EXP Series three-inch non-metallic, air-operated diaphragm pump for chemical and water processing applications.

These pumps can transfer up to 20,000 liters of fluid in 30 minutes. That equates to a 47 percent increase in flow compared to the Aro two-inch pump, and a flow rate of up to 270 gallons per minute.

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New range of sewage grinders

Wednesday, May 9th, 2018 von admin

The ever-growing rag content in today’s wastewater means that even the best pumps may not be enough. When it comes to critical pumping stations, pump users may need more. Thanks to the acquisition of JWC Environmental, Sulzer now also offers a comprehensive range of powerful sewage grinders – the Muffin Monster and the Channel Monster.

These machines will be presented on Ifat show in Munich next week together with the pump technology.

Up to 33,000 m³/h

Friday, March 23rd, 2018 von admin

In response to the worldwide increase in large waste water projects, KSB has extended its range of large dry-installed waste water pumps. The pump manufacturer has developed an extra 15 sizes to add to its Sewatec pump series.

The maximum flow rate of the largest version will be up to 33,000 m³/h with a drive rating exceeding one megawatt.

An example of these pump sets will be showcased at the pump manufacturer’s trade fair stand at this year’s Ifat in Munich.

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Mounting aid for waste water pumps

Thursday, March 8th, 2018 von admin

SewaSlide is a movable support that makes the task of opening the pump a simple one-person job, allowing measures such as

  • impeller inspection or
  • the removal of fibres and solids.

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Innovations for wastewater pumping

Friday, March 2nd, 2018 von admin

Fig. 1

At the previous Ifat, Swiss company Egger presented a further development of their completely retracted Turo centrifugal impeller TA for raw sewage conveyance. To date, a large number of pumping stations that are burdened with high solid loads (such as fibrous materials, wet wipes, etc.) have been successfully equipped with them. Blockages could be eliminated or – under extreme load – reduced to a minimum.

At Ifat 2018, the company is now presenting a low-clog and 100% dry-running-safe centrifugal pump hydraulic system. A further development of the Eurodyn hydrodynamic shaft seal in conjunction with Turo Vortex hydraulics makes absolutely dry-run safe use possible. The pump hydraulics and shaft seal operate completely contact-free. In the case of wastewater pumping operations that comply with the regulations, the pump set as designed by Egger enables 4-years of maintenance-free operation.

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Maintenance-in-place-solution for progressing cavity pumps

Monday, February 19th, 2018 von admin

Progressing cavity pumps from Allweiler can be delivered with an Optifix option. The pump can be disassembled in five steps, and eliminates the need to dismantle it from piping to change the rotor, stator, joints or shaft seal.

Designed to deliver superior speed and efficiency, Optifix’s easy exchange design is optimized for safe and streamlined inspections, parts removal and service operations. In wastewater treatment service, Optifix can reduce mean time to repair intervals by as much as 85 percent and boost pump service life by up to 500 percent when combined with patented Alldur stator solution.

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Self-cleaning tank inserts for waste water tanks

Thursday, February 8th, 2018 von admin

At this year’s Ifat trade fair in Munich, KSB is presenting its ready-to-install self-cleaning Amaclean tank insert. Amaclean decreases the amount of stagnant water in the pump sump and reduces the need for maintenance and cleaning.

In combination with select impeller types featuring in the waste water pumps used, this tank insert eliminates the need for flushing valves. Amaclean’s patented design and gel-coated inner surface prevent waste and fibres contained in the waste water from depositing in and at the lower parts of the structure.

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What To Consider When Selecting a Filter-Press Pump

Friday, February 2nd, 2018 von admin

Fig. 1 A typical chamber filter press being fed by a Almatec high-pressure air-operated double-diaphragm (AODD) pump

Technical paper by Peter Schüten:

High-Pressure Air-Operated Double-Diaphragm (AODD) Pumps Deliver The Operational Advantages Necessary For Optimized Operation Of Chamber Filter Presses.

In many industrial processes that feature the handling of liquids, the substances that are being transferred may occur in an aqueous or “muddy” state, with the liquid portion needing to be removed. This liquid-removal stage may take place during the production process – for example, in the filtration of edible oils or yeast solutions – but it more frequently occurs at the end of a process like wastewater treatment when the waste sludge that has formed must be withdrawn. Since the disposal of such sludges is calculated based on weight and volume, their thickening and drying is particularly lucrative for the processor. During the thickening and drying process, the sludges are treated using chemicals and/or physical processes so that the waste sludge forms into flake-like solids. After adjusting the pH level to neutral or alkaline via the use of milk of lime, the subsequent dewatering process separates the water for disposal, with the remaining volume of sludge significantly reduced.

The simplest technology for this process involves collection and thickening of the sludge through the use of gravity. However, it is significantly more effective to use technical drying methods via processes such as centrifuges and evaporators, or more commonly, chamber filter presses (Fig. 1).

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Wilden: 13 mm (½”) Clamped Metal Pump

Friday, September 1st, 2017 von admin

This 13 mm (½”) clamped metal AODD pump PS1 is equipped with the energy-efficient Pro-Flo Shift Air Distribution System and its clamped configuration allows for easier maintenance, diaphragm replacement and cleaning.

The footprint of this AODD pump matches that of the Wilden PX1, which enables direct replacement of a PX1 with no repiping necessary. With less components and 7% more efficient than the PX1, the backward capability of the PS1 makes it an easy way to enhance and upgrade existing pump performance.

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Grundfos: How is the pump doing?

Tuesday, October 4th, 2016 von admin

grundfos_pressebild_grmWells, waste water treatment plants, water reservoirs, elevated tanks, water distribution networks, collection channels, rainwater retention basins, waste water treatment plants – the water industry operates a complex network infrastructure for water supply and waster water disposal.

The high fixed costs of these infrastructures force those responsible to an intensified view of the variable costs. This can only be done by the energy efficient operation of all technical units, in particular the pump system. The basis for this is the transparency by the recording and analysis of the relevant energy data. However, pumps in small and medium-sized water treatment and sewage treatment plants generally do not operate in the view of a technician. And the distance to a central control panel makes the connection of a cable impossible from the aspect of costs.

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