Pump Controller Articles on Environmental XPRT

Controlling the Flow Capacity of a Metering Pump

Since a metering pump is usually a positive displacement pump there are two possible ways of controlling the flow capacity. The first one is by adjusting the volume of liquid displaced per stroke of the pump and the second is by adjusting the speed of the strokes. I. Stroke Length – control the displacement volume per stroke II. Speed of Strokes per minute Stroke Length ...

Dec. 15, 2016

By Aquflow

Dredge Pumping Systems Improve with VFD Motor Controls

Submitted by Dave Stoltenberg, Dredge Rental Specialist, SRS Crisafulli Pumps and Systems recently published an article by Christopher Jaszczolt titled “VFDs Improve Motor and Pump Control”. The article discussed current applications of variable frequency driven (VFD) motor controls as an excellent method ...

Nov. 9, 2011

By SRS Crisafulli, Inc.

Pump Station Biotrickling Filter Odor Control

Odor Complaints Eliminated at Florida Lift StationEffective Control of Odor Surges to 800 ppmv H2S$50,000 Savings IntroductionNumerous cities and counties in central Florida are experiencing explosive growth. Examples abound in articles in Florida newspapers. Population is growing “by leaps and bounds” per the Seminole Chronicle (6/9/06) ...

Jan. 12, 2007

By Lantec Products, Inc.

Fuzzy maximum power extraction control for a photovoltaic water pumping system

AC loads present a delicate matter for photovoltaic systems, and this is because of the photovoltaic panel's operating point, which moves randomly according to irradiance changes; in this case, almost of photovoltaic water pumping systems use a DC–DC converter to ensure either the maximum power extracted from PV panel or the load needs. For AC motor pumps, an inverter must follow this chopper. ...

Dec. 17, 2014

By Inderscience Publishers

Decision support system for main pumping station control, BOS Delfland

The waterboard Delfland uses a DSS to automatically control the 7 pumping stations in its main canal system. Delfland manages a small part of the dutch watersystem in the south-west of the country. The area is mostly below sealevel and it is intensively used, for residential areas, greenhouses and industry. It is only 400 km/2, yet houses 1,6 million inhabitants, multiple cities among which the ...

Sep. 22, 2011

By IWA Publishing

More Power. More Control.

Cuyahoga County pumps value to its community through greater control, standardization and technological advancements. Cuyahoga County is the most populous county in Ohio, with nearly 1.4 million residents. Part of Greater Cleveland, the county is named after a Native American word meaning "crooked river." With more than 63% of its total area made up of water, the county strives to foster strong ...

Feb. 7, 2011

By Gorman-Rupp Co.

Controlling the addition of Chlorine into a Process

There are several methods for controlling the addition of chlorine into a process. These methods include flow proportional injection, ORP (oxidation reduction potential) or a residual chlorine analyzer. Each method measures a different process characteristic. Depending on the specific type of process being controlled, there generally is a best choice for controlling the injection of either ...

Jan. 1, 2007

By Walchem, Iwaki America Inc.

Principal Noise Pollution Control

Sources of noise in industrial machinery and processes are : Rotors, Gears, Turbulent Fluid Flow, Impact Processes, Electrical Machines, Internal Combustion Engines, Pneumatic Equipment, Crushing, Blasting, Pumps and Compressors. The most desirable method of controlling a noise pollution is to minimize the noise at the source. This generally means modifying existing equipment and structures or ...

Apr. 19, 2014

By EnviroChem Services (OPC) Pvt. Ltd.

Control of Wastewater Treatment Plants

Instrumentation, control and automation (ICA) of wastewater treatment systems and sewer networks have attracted much attention since the early 1970s. The developments during the last four decades in on-line instrumentation, computer technology, process understanding and subsequent model development, and control methods have been powerful driving forces for advanced control making ICA ever more ...

Nov. 11, 2015

By IWA Publishing

Industrial Noise Control Services

Industrial Noise Control Studies Study different equipment noise and recommend suitable noise insulation. This include diesel generators, gas turbines, compressors, pumps, fans, chillers, factory machineries, traffic noise,...etc. Our evaluations and recommended solutions meet general guidelines and practices of international standards and nroise laboratories such as ...

Jul. 26, 2017

By Najah Engineering Consultants LLC

The Nitty-Gritty of Dust Control

Landfill owners and operators spend a lot of time focusing on containment: containment of waste; containment of leachate; containment of gas, litter, and odors. Quite often, containment of dust ranks near the bottom of the list. But that doesn’t lessen the importance of dust control. ...

Sep. 10, 2014

By Blue Ridge Services, Inc.

Principles of Solids Control

Although the use of drilling fluids within the HDD / trenchless industry is still relatively new, recent trends suggest that this standard is shifting as solids control is one of the most important phases in the drilling process. This shift is due to a growing awareness that drilling fluid maintenance and disposal can become exponential problems as they are both harmful to the environment and ...

May 15, 2014

By Elgin Separation Solutions

Pump up the volume

On April 6 the Control of Noise at Work Regulations 2005 will come into effect for any licensed premises or venue offering amplified music entertainment. Tim Turney, Product Manager with Casella CEL which manufactures noise measuring and dose meter technology takes a quiet look at the noisiest industry in town.When the smoking ban came into effect last June many clubs and pubs held a ‘farewell to ...

Feb. 8, 2008

By Casella

The small pumps with a big attitude

Cardev International Ltd supplies a comprehensive range of environmental products commonly used in the maintenance and on-site recycling of industrial cutting fluids and oils, particularly hydraulic and turbine oils. Cardev’s standard range of OSCAR rigs incorporate several sizes of Mono M range pumps, including 110 volt systems for industrial recycling, and 24 volt systems mounted on the back of ...

Feb. 26, 2010

By NOV (manufacturer of Mono™ products)

Puny drain pumping station

Bedford Pumps Ltd has recently completed the installation of the Mechanical and Electrical plant at a new pumping station at Puny Drain. The drain which is controlled by the East of Ouse, Polver and Nar IDB’s, drains an area of low lying land to the south of Kings Lynn. The recent redesign of the drainage system in the area necessitated the construction of a new drain and pumping station to ...

Jun. 25, 2011

By Bedford Pumps Ltd

Optimal operation efficiency and control of water pumps in multiple water reservoir system: case study in Korea

Pumping regimes for water distribution systems have been established to reduce pump operation costs. Optimization of water reservoir networks has been studied extensively for operating pumps efficiently. According to research, optimization reduces pump operation costs by approximately 10–20%. However, comparing economic benefits per country would be too complex because the effects ...

Feb. 4, 2015

By IWA Publishing

Griffin Dewatering pumps 15 million gallons of water from flood control project with 75 foot deep wells

On April 29 2011, Houston-based Griffin Dewatering Corp. began pumping 15 million gallons of water from the site. It also used 42 10-in.-dia, 75-ft-deep wells outside the dam perimeter to lower the groundwater table and relieve external hydraulic pressure. Griffin is working on several Corps projects in New Orleans, but Michael Lippard, Griffin senior project manager, says Seabrook is ...

May 9, 2011

By Griffin Dewatering

Future Proofing and Pumping Technology

Untitled Document Now that the dust of the AMP 4 round has settled, the UK 's water and sewerage companies are underway with their plans to maintain, upgrade and develop their asset base over ...

Dec. 1, 2005

By Watson-Marlow Fluid Technology Group

Case study - pumping in mines

Location: Peru Year: 2011 Working context Pumps have been installed in Cerro Verde and Antamina mines in Peru for pumping tailings and material from in the process plant. The problem Both clients where looking for a pump able to handle slurry with high specific gravity and with solid concentration ...

Jan. 22, 2013

By Dragflow North America

Case study - pumping in mines

Location: Peru Year: 2011 Working context Pumps have been installed in Cerro Verde and Antamina mines in Peru for pumping tailings and material from in the process plant. The problem Both clients where looking for a pump able to handle slurry with high specific gravity and with solid concentration up to 70%. ...

Oct. 29, 2011

By Dragflow S.r.l.

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