canal cleaning Articles

  • Piedroba Dewaters Slurry, Returns Clean Water to Holmes Beach Canals

    This project was a successful application of a total cleaning system (TCS), where the particular type of solids of the sediments permitted the dredger to avoid the costly construction of a dredged material maintenance area (DMMA), or the transportation and tipping fees for a municipal landfill. The surface waters were cleaned in tandem, and contributed to a higher quality benthic environment in ...

  • The natural way to clean wastewater

    John Todd founded Ocean Arks International in the 1980s, where he started to experiment with processes that mimic natural ways to purify wastewater. He built a greenhouse and ran sewage through a series of tanks, with plants suspended in the flowing waters, and constructed marshes made of sand and gravel. No chemicals were added, but plenty of aquatic creatures from snails to small fish were ...


    By BioCycle Magazine

  • Self-Cleaning Filtration for Pretreatment of Membrane, UV and Ozone Water Treatment Systems

    Recent field data has shown the effectiveness of automatic self-cleaning filters in removing suspended solids down to less than 3 microns in size without flocculents, pre-coats or granulated media. Pre-treatment of ozone systems is often needed to remove organic solids that would utilize high amounts of ozone during oxidation leaving little for complete disinfection. Selfcleaning screen filters ...

  • Dewatering projects in Rio de Janeiro - case study

    TenCate Geosynthetics, in partnership with Allonda Comercial de Geossintéticos Ambientais ltda in Brazil, is involved in two large dewatering projects. The projects relate to the cleaning up of the Canal do Fundão near Rio de Janeiro and the removal and dewatering of polluted sedimates at Sepetiba Bay, which is just west of the capital. Dewatering with TenCate Geotube® ...

  • Performance of a pilot showcase of different wetland systems in an urban setting in Singapore

    The Alexandra Wetlands, part of PUB's Active, Beautiful, Clean Waters (ABC Waters) Programme, showcase a surface flow wetland, an aquatic pond and a sub-surface flow wetland on a 200 m deck built over an urban drainage canal. Water from the canal is pumped to a sedimentation basin, before flowing in parallel to the three wetlands. Water quality monitoring was carried out monthly from ...


    By IWA Publishing

  • Thermal waste gas purification of siliceous organic compounds - Case Study

    Example: Electrical industry Similar tasks: Electronic industry, Coating, Waste management When coating mica insulation materials, peaks of high contamination occur. The exhaust air containing organic compounds generates excess heat when oxidised in the regenerative thermal oxidiser (RTO). The properties of ceramic honeycomb blocks allow for the storage of that excess heat, for the ...

  • Freshwater ecosystems

    Freshwater ecosystems in Europe are rich in biodiversity and provide essential ecosystem services to humans Europe's freshwater ecosystems range from rivers, flood plains, lakes and ponds, marshes and peatlands, to man-made water bodies such as canals and reservoirs (EC, 2007a; EC, 2007b). They encompass a broad variety of wetlands. These different systems also interact with groundwater. ...

  • Columbia River Gets a Vertical Fish Screen - case study

    The Columbia River is huge and runs past deserts, towns, major cities and numerous recreation areas. It is a major fishery, as well. So this screen had to protect and exclude fish, handle natural and urban debris, and operate in a constricted space.  We designed and installed large vertical fish screens with hoods. Now the irrigation canal is clean and clear of river debris. The fish are ...


    By International Water Screens

  • Asbestos contaminated soil removal - Glasgow

    Asbestos Contaminated Soil Remediation Client: Hawkshead Properties Ltd Challenge: Removal of asbestos contaminated demolition material adjacent to residential housing and canal. Monitor air borne dust particulates and swab cleaned surfaces to validate target levels. Backfill excavations and make safes vertical drops. ...


    By Soilutions Ltd

  • Climate adaptive urban planning and design with water in Dutch polders

    The existing water management in Dutch polders is based on independent water systems for each polder. These are featuring artificial stabilized ground and surface water levels. As a result of the local climate the water levels in the polders are not continuously at a constant level. To maintain a stable water table in the polders, the surplus of relatively clean rainwater has to be pumped away ...


    By IWA Publishing

  • Alien fish eradication improves water quality at Century City - case study

    NCC planned and implemented an alien fish eradication programme to solve a looming water quality crisis at one of South Africa’s premier retail, office and residential developments. Century City, first established in 2002, is a large mixed-use development covering 250 hectares of land along the N1 near the centre of Cape Town. It includes the Canal Walk shopping mall, Ratanga Junction ...

  • 6. Middle Regge Project Implementation

    Not only has the Regge been severely canalized in the past, a very large part of its catchment area in the eastern part of the Twente region has been disconnected from the system. A large part of this area, with relatively clean creeks, will now be reconnected by 2013 by the creation of new river that will flow into the Regge river a bit north of Enter in the Municipality ...


    By IWA Publishing

  • TenCate Geotube technology for dewatering - case study

    TenCate Geotube technology is used to protect coastlines, restore beaches, reclaim land and to store and filter polluted water. TenCate Geotube is a strong, sustainable method and a cost effective alternative to traditional hydraulic engineering constructions. The technology has already been used worldwide in more than 2,000 projects. These have involved for example the recovery of coastline, ...

  • Dragflow, environmental-proof technologies. Beyond business for love of the Earth.

    Dragflow chooses to soften the environmental impact with advanced technologies for dredging optimization and naturalistic protection. High performances imply  a specific attention towards ecosystems where the operations are carried, since they often are fragile and easy to jeopardize. That’s why Dragflow conceived technical solutions like the anti-turbidity bell: designed to preserve ...


    By Dragflow S.r.l.

  • Lake Jamno remediation proposal

    Lake Jamno………. near the city of Koszalin in Poland, has been contaminated by bio-mass sludge build-up from many years of agriculture run-off. Once a popular recreational and vacation destination, the Lake has been closed to swimming and boating since 2001. A Letter of Intent has been signed between the City of Koszalin and BluePlanet for the reclamation of Lake Jamno using an AQUACLEAN Treatment ...


    By BluePlanet Labs

  • How PPE Makes Mining Industry Safe and Secure

    Work-related health and safety has always remained a cause for concern among industry experts, managers and workers. Many industries like energy, construction, fishing and farming report high incidence of casualties. The potential hazards that miners face daily in their workplace are plenty. Many of these hazards have progressive consequences that are not realized until too late. The effects ...


    By KWRS

  • Cape Coral - Case Study

    Cape Coral is the third-largest city in the State of Florida behind Jacksonville and Tampa in terms of total city area and the 12th most populated. The city’s most unique feature is a 400-mile network of dredged canals; more than any other city in the world, making it a popular destination for recreational boaters and waterfront living. Background Two years ago city ...


    By Biorem Technologies Inc.

  • Things are heating up in the not so frozen North

    The publication of a US Geological Survey (USGS) on potential fossil fuel resources beneath the shrinking polar ice cap has highlighted what could become the next great play in the global energy market. Circumpolar countries are already staking overlapping territorial claims to this vast territory and the prospect of a new polar sea route between Asia and Europe has reignited Canada-US tensions ...


    By GLOBE SERIES

  • Case study: URS - Identifying remediation locations saved hundreds of thousands

    One of the biggest threats to public health today is unsafe water. A billion people across the world don’t have access to clean drinking water, in part because many subsurface aquifers have been poisoned. Perhaps the most famous example of this was the Love Canal crisis of 1978. The Niagara Falls neighborhood experienced high rates of cancer, birth defects and other sicknesses due to ...


    By Willowstick Technologies LLC

  • Rethinking Big Water - Is It Time For A New Approach To Municipal Water Infrastructure?

    Las Vegas has long served as a stereotype of human excess: gambling, drinking, sex, all-you-can-eat buffets. But the latest chapter is playing out away from the Strip, in the part of the valley where two decades of booming development have swelled the population to 2 million residents who rely on a dwindling water supply. Ninety percent of the southwestern U.S. city’s drinking water comes ...


    By Ceres

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