bottom sediment News

  • Cleaning of large outdoor reservoirs

    Spain has thousands of outdoor reservoirs used for irrigation in fruit plantations. From smaller rectangular concrete tanks to larger reservoirs with liner bottoms and sides. Regular cleaning of these reservoirs is important and the water for the plantations is an absolute must to make sure that the plantation has a constant supply of water. Draining of these reservoirs is normally not an ...


    By Weda AB

  • Cleaning of large outdoor reservoirs

    Spain has thousands of outdoor reservoirs used for irrigation in fruit plantations. From smaller rectangular concrete tanks to larger reservoirs with liner bottoms and sides. Regular cleaning of these reservoirs is important and the water for the plantations is an absolute must to make sure that the plantation has a constant supply of water. Draining of these reservoirs is normally not an option ...


    By Weda AB

  • AmeriLithium Website Updated With Clayton Deep & Full Monty Gravity Survey Results & New Lithium Project Acquisition

    AmeriLithium Corp. (OTC Bulletin Board: AMEL; "AmeriLithium" or "the Company") is pleased to announce the update of its corporate website at http://www.AmeriLithium.com. Included in the updates is information regarding positive results from gravity survey's completed on the Company's Clayton Deep & Full Monty lithium brine projects in ...


    By Republic Services, Inc.

  • EPA and MDEQ OK $12 million muskegon lake cleanup

    A $12 million Great Lakes Legacy Act cleanup of contaminated sediment at Muskegon Lake’s Division Street Outfall area is set to begin in May 2011. The initial focus of the Muskegon Lake project involves the dredging and safe disposal of 41,000 cubic yards of contaminated sediment from the bottom of the lake in an area between Heritage Landing and Hartshorn Marina, near downtown Muskegon. ...

  • EPA to Revise Permit Requirements for DuPont Pompton Lakes Cleanup

    The U.S. Environmental Protection Agency today announced that it will revise and re-propose the plan to remove sediment contaminated with mercury and lead from the Acid Brook Delta and other parts of Pompton Lake in Pompton Lakes, New Jersey. The EPA had previously finalized a plan, which was contained in a permit requiring cleanup of the Acid Brook delta along with certain other areas in the ...

  • Monitoring heavy metal contamination in the German Wadden Sea

    Human activities, including industrial development along coastal areas, risk polluting the marine environment with heavy metals which can harm human health and aquatic life. A recent study has found elevated levels of metal pollution in the Jade area of the German Wadden Sea, but concludes that metal contamination of the sediments would not be expected to have harmful effects on the marine ...

  • Antarctic ecosystems suffer toxic impacts of petrochemical lubricants over the long term

    Petrochemical lubricants have toxic effects on Antarctic seafloor ecosystems even after five years of degradation, a new study suggests. Examining the impacts of a standard lubricant and one marketed as biodegradable, the researchers were able to show that algae, which form the basis of the food chain, remained affected even after five years. Furthermore, the biodegradable lubricant appeared to ...

  • Dow Chemical Removes Contaminants Near its Home Factory

    MIDLAND, Michigan, July 12, 2007 (ENS) - The Dow Chemical Company began work this week to remove contaminated sediments in the Tittabawassee River, just upstream of the Dow Dam in the company's hometown of Midland. The sediments are contaminated with high levels of dioxins and furans, chlorobenzenes, metals, and other materials. On June 27, the U.S. Environmental Protection Agency Region 5 gave ...

  • SediMeters can save corals from dredging

    The ongoing dredging of Miami Harbor has caused siltation (the accumulation of sediments) on the coral reefs outside the harbor. In a settlement of a recent lawsuit, the contractor, U.S. Army Corps of Engineers (USACE), has agreed to pay $400,000 for moving corals out of the way. They are not using any instrument for measuring the sediment accumulation, even though such an instrument exists, is ...


    By Lindorm, Inc.

  • Second phase of historic hudson river cleanup underway

    The U.S. Environmental Protection Agency (EPA) today announced that the dredging of sediment contaminated with polychlorinated biphenyls (PCBs) has resumed in the Upper Hudson River, marking the start of the second and final phase of the Hudson River cleanup. The historic dredging project targets approximately 2.4 million cubic yards of PCB-contaminated sediment from a forty- mile section of the ...

  • How Enduramaxx is helping microbreweries to pull the perfect pint

    With close to 1000 microbreweries opening throughout the UK since the start of the century, the trend of smaller, independent brewers producing their own better tasting, better value beers does not look set to slow. At the heart of any brewery lies good equipment and Enduramaxx manufactures a range of cone bottom tanks and WRAS-approved plastic water tanks ideal for brewing operations. Enduramaxx ...


    By ENDURAMAXX

  • Oxygenization of sea floor tested in coastal waters of the western Finland

    A joint Nordic three-year research project will show whether pumping of oxygen-rich surface water down to the bottom-near water layer can improve the state of coastal water that suffer from oxygen depletion. In anoxic conditions, nutrients stored in the bottom sediment, particularly phosphorus, are released into water. The Finnish research site is the Sandöfjärden water area in the western part ...

  • Grants worth $1.2m propel Elizabeth River restoration

    Funding to remove contaminated sediment from a river at the mouth of the Chesapeake Bay and help reduce toxics and nutrients in stormwater runoff was presented to the Elizabeth River Project Thursday after the group was chosen in two separate grant competitions. EPA Regional Administrator Donald Welsh Thursday presented two grants totaling nearly $1.2 million to the Elizabeth River Project to ...

  • EPA accelerates work at aerovox, resumes eighth season of harbor dredging in new bedford

    The U.S. EPA has successfully moved ahead of the Aerovox Mill demolition schedule anticipated earlier this year. The initial phase of the demolition process, involving the removal of hazardous materials from inside the building, is expected to be completed in early July.  The careful deconstruction of the building structure is now set to begin by August. Three truck loads of waste from the ...

  • Fourth Season of Dredging Begins in Upper Hudson; Project Expected to Reach Halfway Point during Fourth Season

    U.S. Environmental Protection Agency Regional Administrator Judith A. Enck was joined by New York State Department of Environmental Conservation Deputy Commissioner Eugene Leff today to kick off the start of the fourth season of dredging in the Upper Hudson River. Portions of the Upper Hudson are being dredged to remove sediment contaminated with polychlorinated biphenyls (PCBs), which are ...

  • Dredging of Toxics Resumes in Upper Hudson River for Fifth Season; PCB Cleanup Designed to Restore Hudson River; Created Hundreds of New Jobs

    The U.S. Environmental Protection Agency announced that dredging operations are expected to resume on Wednesday in the Upper Hudson River. In 2014, dredging will begin south of Schuylerville, New York and proceed south towards Troy. Dredging will also occur in a two-mile section of river near Fort Miller that is not easily accessed by boat. Dredging is being conducted to remove sediment from the ...

  • EPA Releases Scientific Report Showing U.S. Coastal Waters a Mix of Good and Fair Health

    Biological Quality is rated good in 56% of coastal and Great Lakes nearshore waters. Healthy communities of bottom-dwelling macroinvertebrates (such as worms and clams), which are indicators of biological quality, are supported in these waters. Water Quality is rated fair in 48% of coastal and Great Lakes waters and good in 36% when measuring phosphorus, nitrogen, water clarity, chlorophyll a, ...

  • Impact of one-off dredging deposits important for licensing

    New insights into the impact of dredging on the environment highlight the distinction between small, frequent deposits of sediments arising from maintenance dredging, and larger one-off capital deposits. Understanding this distinction is crucial for effective licensing and monitoring of dredging. When sediment is removed from the bottom of a body of water and deposited elsewhere, as in dredging, ...

  • Soil contamination test improved with worms

    A Dutch researcher has discovered that exposing soil and sediment invertebrates like worms and springtails to toxic chemicals can give a more accurate test of soil contamination. Dr Miriam Leon Paumen also found that prolonged exposure can have a significant impact on the lifecycle of these invertebrates. The findings of this research give weight to the theory that gradual effects cannot be ...

  • New SediMeter features in 2015

    The third generation SediMeter released in 2013 is getting some exiting improvements in 2015, in response to feedback from customers. Although none of the improvements is visible on the outside, they are significant. The only physical change is that the cleaner version SM3B is getting a doubled battery capacity, up to 1800 mAh from 900 mAh. Considering that the idle current is the same, this ...


    By Lindorm, Inc.

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