stormwater tank cleaning Articles

  • Mixers and Flowmakers: Cleaning of stormwater tank

    Deposits in an 18 m diameter stormwater tank made it necessary to clean the tank several times a year. A POD-I mixer was installed. The mixer has an 11.0 kW motor and the number of propeller revolutions is 1500. The relatively small propeller creates a strong, concentrated jet. Operation can take place at a very low liquid level - high velocities are created at the bottom -and the deposits ...


    By Landia

  • How do you clean a stormwater management pond?

    How do you clean a stormwater management pond (SMWP) without draining the pond first? A clean-out of the SWMP is required once every 5-15 years to remove accumulated sediments to ensure the pond continues to function as intended. Drainage of the SWMP is not always required to facilitate the clean-out. By combining the pumping and excavation into one process! New pumping technology - Dragflow ...


    By Aquatech Dewatering Company

  • Innovative use of lamella clarifiers for central stormwater treatment in separate sewer systems

    Lamella settlers have been used in the past few years for the sedimentation of particles in wastewater and stormwater applications. A new and very innovative approach for the treatment of stormwater flows is proposed which extends the portfolio of solutions beyond traditional settling tanks. Surface runoff is stored in a sewer or a basin and finally treated in a small but continuously operated ...


    By IWA Publishing

  • Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

    When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...


    By BaySaver Technologies, Inc.

  • Characterization of the potential impact of retention tank emptying on wastewater primary treatment: a new element for CSO management

    Theoretical studies have shown that discharges from retention tanks could have a negative impact on the WWTP's (Wastewater Treatment Plant) effluent. Characterization of such discharges is necessary to better understand these impacts. This study aims at: (1) characterizing water quality during emptying of a tank; and (2) characterizing the temporal variation of settling velocities of the waters ...


    By IWA Publishing

  • Storm Water Plan Case Study

    Global was contracted by a local Road Commission site. The Road Commission site serves as the county level road agency, which maintains more than 1,813 miles of roads and streets and over 250 signalized intersections. The Road Commission contains six sites across the county. Each site is responsible for its particular area. The sites all include maintenance garages, diesel and gasoline ...

  • Erosion and Sediment Control: Navigating NPDES Regulations, the SWPPP, and Techniques for Compliance

    Erosion and Sedimentation: Why Are They a Problem? The US Environmental Protection Agency lists sediment as the single most common pollutant in rivers, streams, lakes, and reservoirs. With all the potentially harmful chemicals and substances in the world, it seems odd to many people that sediment—dirt, essentially—is singled out as the major culprit. Yet these particles of ...


    By FINN Corporation

  • Using a Self Bailer on Containment Sumps to Filter Hydrocarbons

    How do you eliminate problems associated with the collection of rainwater in outdoor containment systems and maintain compliance with EPA and Clean Water Act regulations?  Since most outdoor oil storage tank sumps and oil drum spill pallets will inevitably be exposed to local precipitation and storm water runoff from nearby catchment surfaces, it is necessary to make sure you ...


    By Interstate Products Inc

  • Residential system design

    Rainwater systems can be as simple as placing a rain barrel beneath a downspout or they can be complex – engineered multi-tank systems with pumping stations and automated computer controls for supplying commercial and industrial process applications. Consider that in one installation in the Sumo arena in Japan, rainwater is supplied for flushing toilets and the cistern’s excess ...

  • Wastewater Recycling: Radiator Warehouse

     Radiator Warehouse is a small company that has been able to compete and grow through innovation and a commitment to cleaner production. After surveying available technology for recycling water and reducing chemicals, it decided to develop its own, much simpler system at a cost of only $10,000. This was not only cheaper than available overseas technologies, but was also just half the cost of ...


  • Model 8 oil grabber® removes small amounts of oil from plant drain water

    Problem: Worldwide, Reichhold Chemical Corp. produces some 5600 products. At St. Helens, Ore., they produce three -urea, ammonium nitrate and ammonia. Plant drain water is discharged into the Columbia River, and although oily residues are minuscule because of a concerted program to keep oil off the floors, some is present - drippage from ammonia compressors, vehicles and machine maintenance ...


    By Abanaki Corporation

  • ACO’s comprehensive product range delivers value-engineered SUDS solution at new waste transfer station

    ACO Water Management's ability to supply products that cover every process required for sustainable drainage - Collect, Clean, Hold, Release - has delivered a comprehensive, value-engineered SUDS solution for J&J Stanley at its new waste transfer station in Newcastle upon Tyne. By working with a single team on the design of the entire system, the completed scheme - together with each ...


    By ACO Group

  • Replacement of Hot Caustic Paint Stripping Process with High Pressure Water Jet System: Ford Australia

    Ford Australia Ltd replaced an existing hot caustic paint stripping process, used for cleaning car skids, with a high pressure water jet system. This project has resulted in annual savings in the order of $300,000 from reduced chemical, energy and waste disposal costs. Significant improvements in paint quality were also achieved through the ability to clean the skids on a more regular basis than ...


  • Improved Oil Handling and Disposal: Rocklea Diesel Injection Service

     Background Truck mechanical workshops use large quantities of oils. Over time, there is an inevitable build up of spillages to give the traditional image of a messy, dirty workshop environment. This is not desirable when working with diesel injection systems. A high level of cleanliness and precision is essential. Several staff members of Rocklea Diesel Injection Service are ...


  • Wallingford solutions enable an integrated approach to modeling

    Of the many advantages to Wallingford Software’s InfoWorks suite of solutions, one that is particularly valued in today’s demanding modeling environment is their reputation as the gold standard for integration. The solutions allow one interface to answer a wide range of questions, rather than requiring a user to laboriously work through a range of modules or packages. Such key but separate ...


    By Innovyze

  • Wastewater Reuse and Minimisation: Weatherall Smash Repairs

     Weatherall Smash Repairs took the initiative on cleaner production because the owner and staff wanted to help the environment. They’ve been rewarded with savings that will grow as water and disposal costs continue to increase, gains in productivity, and a future marketing advantage. They may also be able to sell the water recycling system they have developed, giving a further financial ...


  • Safe Drain® Saves My Facility From Accidental Spill

    "I am writing to thank-you for a great product. This morning we had a 25 gallon diesel spill near our Vehicle Service Area. The spill was a fluke - from the tank of a truck that was parked on a gradient - left without a gas cap. Diesel poured out of the truck onto the asphalt - directly into a newly installed Spill Safe Drain that was closed tightly. All of the spilled product was recovered, ...

  • The Potential of Solar-Powered Water Circulators to Help Solve Serious Water and Energy Problems in the U.S.

    With increasing human populations comes the corresponding increased need for improving water quality in lakes, wastewater ponds, potable water reservoirs, and other water storage facilities. Providing circulation within water reservoirs of all types has long been known to provide meaningful benefits, but the costs to achieve sufficient circulation through diffused aeration or mechanical mixers ...


    By Medora Corporation

  • Cities are finally treating water as a resource, not a nuisance

    From Houston to Melbourne, the surprising ways urban areas are dealing with water woes Memorial Day barbecues and parades were thwarted this year in Houston when a massive storm dumped more than 10 inches of rain in two days, creating a Waterworld of flooded freeways, cars, houses and businesses, leaving several people dead and hundreds in need of rescue. ...


    By Ensia

  • Petroleum Refining Industry - Pollution Prevention Guidelines

    Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum ...


    By The World Bank

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