hydraulic power pack Articles

  • Upgrading an existing wastewater treatment plant based on an upflow anaerobic packed-bed reactor

    Upgrading a wastewater treatment plant (WWTP) may be necessary to meet the existing effluent quality and/or to meet the stricter future effluent quality requirements and/or to increase its capacity because of population growth or sewerage expansion to serve more areas. Inability to meet the existing effluent quality may result from lack of proper plant operation and maintenance, inadequate plant ...


    By University of Tehran

  • Upgrading an existing wastewater treatment plant based on an upflow anaerobic packed-bed reactor

    Upgrading a wastewater treatment plant (WWTP) may be necessary to meet the existing effluent quality and/or to meet the stricter future effluent quality requirements and/or to increase its capacity because of population growth or sewerage expansion to serve more areas. Inability to meet the existing effluent quality may result from lack of proper plant operation and maintenance, inadequate plant ...


    By University of Tehran

  • Even a Dragon can run like a Deere - Liquid Waste Technology launches a new Swinging Dragon dredge with John Deere power

    The new Swinging Dragon dredge from Ellicott Dredges/Liquid Waste Technology (LWT) boasts superior productivity when it comes to dredging marinas, canals, fly ash lagoons, and sand and gravel pits. It’s demanding work. That’s why LWT builds this heavy-duty floating monster with only proven and reliable components. John Deere engines, Funk pump drives, and a complete engine enclosure ...

  • Case study - dredge with ladder

    Location: Ukraina Year: 2010 Dredge with ladder DRS085/160E22EF Dragflow pump HY85/160B with cutters EXHY20 and High Pressure Water Jet-Ring Hydraulic power pack electric driven with complete control board in the operator cabin Dredging depth about 10m Discharge distance up to 700m ...


    By Dragflow North America

  • Case study - dredge with ladder

    Location: Ukraina Year: 2010 Dredge with ladder DRS085/160E22EF Dragflow pump HY85/160B with cutters EXHY20 and High Pressure Water Jet-Ring Hydraulic power pack electric driven with complete control board in the operator cabin Dredging depth about 10m Discharge distance up to 700m ...


    By Dragflow S.r.l.

  • Case study - SAIPEM off shore dredging

    Location: Baku, Azerbaijan Year: 2007 Off shore platform Working context Petroleum fixed steel platforms are used to extract petroleum from the bottom of the sea. The problem Remove sand and silt around the platform jacket. An application for deep sea and high depth dredging. Working depth: ...


    By Dragflow S.r.l.

  • Case study - SAIPEM off shore dredging

    Location: Baku, Azerbaijan Year: 2007 Off shore platform Working context Petroleum fixed steel platforms are used to extract petroleum from the bottom of the sea. The problem Remove sand and silt around the platform jacket. An application for deep sea and high depth ...


    By Dragflow North America

  • High depth dredging

    In the dredging market, there is a new emerging trend: deep sea and high depth dredging and exploration. Deep sea exploration represents both a development possibility, and a huge technical challenge, where critical hyperbaric conditions, remote control and maintenance amends play an important role. ...


    By Dragflow S.r.l.

  • Case Study - Pumping inerts

    Location: Spain Year: 2009 Working Context description In northern Spain the high speed railway system is developing fast. Due to the conformation of the ground the project involves the construction of bridges and tunnels. Material extracted during tunnel excavation is recovered in treatment plant to be further processed. The ...


    By Dragflow S.r.l.

  • Case study - pumping inerts

    Location: Spain Year: 2009 Working Context description In northern Spain the high speed railway system is developing fast. Due to the conformation of the ground the project involves the construction of bridges and tunnels. Material extracted during tunnel excavation is recovered in treatment plant to be further processed. ...


    By Dragflow North America

  • Submersible Pumps vs. Self-Priming Centrifugal Pumps

    When selecting a centrifugal pump for bypass work, the first consideration should be NPSHR by the pump. Neglecting the NPSHR of the pump is the single most common mistake when choosing a self-priming or priming assisted pump. A function of the pump design requires part of the 33.9 ft (14.7 in.) available as further defined in this article. A centrifugal, and in a way submersibles, require part ...


    By Griffin Dewatering

  • Oil Filter Elimination

    The need to state strictly and accurately the procedures for the collection and elimination of car oil filters is a topical subject, due to the injuries to health and environment that would be caused by an inappropriate storage and elimination. According to the Italian law, the expression “exhaust oil” identifies any  industrial oil or lubricant with a mineral or synthetic basis which is no more ...


    By SatrindTech Srl

  • Hydroflo diaphragm pumps help reduce boiler corrosion and maintenance costs

    ABTCo, located in Alpena, Michigan, is a decorative wood paneling producer using three boilers to generate 7 MW of electricity – half the power needed in the plant plus steam for pulp processing. As in many boiler operations, the main enemy is corrosion, which can destroy system components and lead to boiler failure. Although internal boiler surfaces are protected by a film of magnetic ...

  • Tank cleaning in Abu Dhabi case study

    In 2008 we signed an agreement with an Abu Dhabi based industrial and utilities contractor. They wanted to increase their portfolio by offering tank cleaning services. Over a period of four months we trained a number of their operators and sourced new equipment to enable them to approach new clients. In 2009 we were awarded a contract to clean two crude oil tanks. Utilizing local labour, the new ...

  • KBR - Joint Operational Fuel System (JOFS)

    In 2009 DESMI was approached by KBR in the U.K, KBR being a prime contractor to the U.K Armed forces with a specification for the supply of ATEX marked pump units for pumping fuel in ‘Theatre’ as it is known. Theatre being the ‘battlefield’. We had supplied pumps previously direct to the end user (UK MoD) so the decision was taken that it was a worthwhile exercise to bid ...


    By DESMI A/S

  • PE-Recycling at its very best case study

    The Pipelife Group is a leading manufacturer of plastic pipe systems in Europe. The company's flagship products are created at its Stathelle facility in Norway, where PE pipeline pipes hundreds of meters long and up to 2.50 meters in diameter are produced for use throughout the world. Since the beginning of this year, production waste that accumulates has been shredded and recycled with a ...


    By WEIMA

  • 5 Pieces of equipment needed for the pipe bursting process

    Sewer pipe bursting looks a little bit like magic if you compare it to the traditional methods of sewer replacement. With the use of underground construction equipment, including directional boring equipment, sewer technicians are able to pull a new pipe through the old pipe without digging a hole into the top surface of the ground. The sewer pipe bursting method is the perfect pipe replacement ...


    By TRIC Tools Inc.

  • Hol’z dir! Sustainable briquette manufacture in the Augustinuswerk Jessen case study

    Since only very recently the Augustinuswerk in Jessen has been producing wood briquettes under its own brand name of “Hol’z dir” in a separate workshop for the handicapped. Only machines from shredder specialist WEIMA are used for production, their own production facilities being only a few kilometres away in Großnaundorf. It is very busy here. Every day 3,000 wood ...


    By WEIMA

  • Case study - Dallas Water Utilities - Leak Detection

    Service: Sahara Leak Detection Client: Dallas Water Utilities (DWU) Department of Public Works Type of Pipeline: Raw Water Transmission Main Diameter: 108-inch Pipe Material: PCCP Length: 7.3 miles The City of Dallas Water Utilities (DALW) currently draws its raw water from six sources: the Elm Fork of the Trinity River and Lakes Ray Roberts, Lewisville, Grapevine, Ray ...


    By Pure Technologies

  • InfoWorks proves ideal for ‘mega models’

    The recent development of some exceptionally large hydraulic models in both InfoWorks WS and InfoWorks CS has highlighted the advantages of Wallingford Software’s InfoWorks platform for the creation, management and modeling of large and complex models. Representation of a network made up of hundreds of thousands of pipes requires rigorous data management as well as a fast hydraulic solution. ...


    By Innovyze

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