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Dredge pumps for rent8/25/2023 ![]() We are now using the 6” P&S crane-controlled, or diver-controlled systems to move debris up to 5” diameter with no problems (that’s right… a 6” pump can pass a 5” rock). A few months ago, we were faced with the possibility of not being able to complete our project during this fish window, but I did some research online and found P&S. Our dredge permit only allows us to hydraulically dredge the material and so a clam bucket is not an option. The Toyo removes material smaller than 1 ¾” and leaves a pile of clean rock below the intake that it’s unable to pass. The project I’m currently on we brought a 6” Toyo pump because the seafloor was to be consisting of sand and silt, but it’s actually a mixture of sand, silt, and rocks up to 8” diameter. Knowing where your pump is located beneath the water and knowing where you’ve dredged is critical in toxic containment scenarios.I’ve been in the marine construction industry for 26 years and have done my share of dredging using various sizes of submersible trash pumps. GPS dredge positioning systems are used which allow operators to dredge with far more precision. Low-turbidity, hydraulic dredge pumps are most commonly used to safely remove contaminated material. ![]() Toxic containment is the process of removing toxic or hazardous sediment while being careful not to further contaminate the surrounding ecosystem in the process. Excess buildup of nutrients (especially Phosphorus) can also promote unwanted growth or production of algae and plants. The amount of nutrients in lakes is heavily determined by the type of land, vegetation, and types of rock and bedrock. These nutrients are essential to plants and algae for strong growth. Nutrient buildup describes the accumulation of certain nutrients such as Phosphorus (P) and Nitrogen (N). As a result, dredging is used to remove the excess sediment in order to restore the natural beauty of the lake. Siltation is typically caused by soil erosion or sediment spill. Siltation is when there is an excess amount of sediment buildup which can cause discolored, cloudy water. Lake dredging is typically performed due to siltation, nutrient buildup, and toxic contaminant problems found in the lake. Lake dredging is the process of removing sediment from freshwater lakes. Since large container ships carry the bulk of the world’s trade goods, marine dredging is widely considered a critical cog in the global economy. GPS positioning systems and slurry flow meters are typically used to ensure accuracy and optimal production rates. Canal management involves dredging sand from the ocean floor which ensures large ships can get pass safely without contacting the floor sediment. Over time, sediment builds up in harbors, canals, rivers, and lakes. Marine dredging also refers to harbor and canal management. Marine dredging is the most common way to excavate underwater. To be successful at marine construction, it requires the use of heavy-duty dredge pumps to efficiently remove sediment to ensure operation has a solid, even foundation on which to build from. Marine construction can describe a wide variety of structures that are typically built on the shore such as piers or seawalls or offshore as with oil rigs and cofferdams.
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