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water restoration Applications

  • Amphibious multipurpose dredger for restoring shallow waterways and shores

    The current declining condition of inland waters worldwide can be changed.

    Watermaster can deepen, build and clean out inland waters and shores. With this multipurpose technology the smart approach for various problems can be chosen, so that the work is done cost effectively and properly.

    Large-scale shallow water dredging requires large-scale dredging capacity. Traditional big dredgers with limited mobility are poorly suited for inland waters. With a fleet of amphibious multipurpose Watermasters you are equipped to handle all kinds of environments and projects of all sizes.

    By Watermaster - Aquamec Ltd. based in Säkylä, FINLAND.

  • Filamentous Bulking Control with Hydrogen Peroxide

    Basis of Control with Hydrogen Peroxide Hydrogen peroxide may be used to correct a serious filamentous bulking situation or, preferably, to prevent one from occurring until adjustments can be made to remove the cause. When applied to the return activated sludge, hydrogen peroxide supplies dissolved oxygen which helps restore the microbial activity necessary for effective operation, while selectively oxidizing the filaments which retard settling. The effective dose of hydrogen peroxide is a function of time and concentration, and varies from plant to plant. To correct a serious bulking problem, immediate results may be obtained by adding 100 - 200 mg/L H2O2 to the biosolids recycle line. Once control of bulking is obtained, the dose may be reduced to 25 - 50 mg/L H2O2 to prevent re-occurrence. Practical Considerations Filamentous bulking of municipal activated sludge is not a normal occurrence, and suggests more fundamental problems may be at work (e.g., low dissolved oxygen, high sulfide input, heavy organic loading, nutrient imbalance, improper sludge age, or rapid changes in influent characteristics). Consequently, the use of chemicals such as hydrogen peroxide to control bulking should be pursued in concurrently with more fundamental corrective measures.

    By USP Technologies based in Atlanta, GEORGIA (US) (USA).

  • Vacuum excavation solutions for micro-tunneling / foundation stabilization sector

    Vac‐Tron vacuum excavation equipment can be used for the application of Micro‐Tunneling and/or Foundation Stabilization. Microtunneling is used to construct small tunnels. This process enables access to plumbing, electrical wiring, termite repair, flooding, crawl space and historical restoration without compromising the integrity of the foundation. By using the “soft‐dig” technique under the foundation or slab, there is no risk of damaging any previous utilities or structural damage to the building. The debris removed will only have to be handled one time. This process would be best served with the Vac‐Tron AIR855 model to accommodate the volume of debris, as well as having the flexibility of back‐filling with the dirt that was removed after the process has been completed.

    By Vac-Tron Equipment based in Okahumpka, FLORIDA (USA).

  • Depuration of oil and emulsion mists

    In machine shops, where the production is centered on the use of machine tools, one of the most common problems is the restoration intervention aimed at limiting the presence of oil or emulsion fogs. As a matter of fact, since machine tools work at very quick production rhythms, they widely use lubricating fluids such as oil or oil emulsions and water.

    By GGE srl based in Rio Saliceto, ITALY.

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