Understand contamination levels in 3D! 'Continuous Groundwater Sampling Device'
MIS-241-1-01 type
High precision groundwater environmental surveys! Sampling can be conducted in an undisturbed state, allowing for a three-dimensional understanding of contamination concentration distribution!
Conventional equipment for extracting groundwater includes bailers and submersible pumps; however, due to the structure of these devices, they cannot extract water from a specific depth without disturbance. Marui's "Continuous Groundwater Sampling Device" allows for the extraction of groundwater in an undisturbed state at every 1-meter depth, making it a groundbreaking product that enables a three-dimensional understanding of contamination concentration distribution. The sampling process involves quietly lowering a single inner pipe with a strainer to the designated position in the observation well, and once the groundwater stabilizes, an outer pipe is inserted around the outer side of the inner pipe. Finally, both the inner and outer pipes are pulled up together, and by separating the two sampling pipes, which are sealed with water at each depth, groundwater can be extracted in an undisturbed state. This is a patented product. 【Features】 ● Allows continuous sampling of groundwater every 1 meter in depth ● Enables extraction in an undisturbed state ● If multiple observation wells are available, it can provide a three-dimensional understanding of groundwater concentration distribution ● Accurately conducts everything from groundwater contamination surveys to purification strategy design and monitoring.
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basic information
【Specifications】 ■Sampling Pipe ・Inner Pipe: φ32×1086mm ・Outer Pipe: φ42×1055mm ・Sampling Capacity per Pipe: Approximately 650mℓ ■Accessories: Suspension Bracket, Bottom Bracket, Clamp, Fall Prevention Pin ■Storage and Transport Case: Made of Aluminum ■Options Chain Block (Lifting Load = 80kg) / Tripod / Outer Pipe Installation Tool *We also have data from the demonstration tests of the device (water quality tests for saltwater intrusion in coastal areas). For more details, please contact us or visit our website.
Price information
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Applications/Examples of results
【Soil and Groundwater Contamination Survey at Factories and Other Sites】 Three-dimensional understanding of groundwater contamination can be achieved, allowing for rational countermeasure design. In countermeasure construction, accurate monitoring enables the understanding of the remediation process and facilitates rational construction management. 【Natural Soil and Groundwater Contamination Survey】 In cases of heavy metal groundwater contamination, such as in mountainous tunnels, it is possible to understand the depth and concentration distribution of contamination leaching due to the geological structure of the ground. 【Groundwater Contamination Survey Due to Nitrate Nitrogen in Agricultural Production Areas】 Groundwater contamination by nitrate nitrogen due to excessive nitrogen fertilizers is often widespread, and multi-point observation wells can be used to understand the three-dimensional zone of contamination. 【Leakage Investigation of Contamination from Waste Disposal Sites】 If contaminants seep underground due to damage to impermeable sheets, the "water path" of contaminated water can be investigated in depth using observation wells. 【Water Quality Investigation in Well Construction in Depth Direction】 Groundwater quality varies with depth, and it can be used to determine the strainer depth for collecting good quality water by avoiding layers with high iron content, for example.
Detailed information
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It is possible to understand the contamination status of groundwater in 3D. By sampling groundwater continuously every 1 meter in depth without disturbance, we can grasp the concentration distribution of groundwater in three dimensions by utilizing multiple observation wells.
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Groundwater sampling is conducted every 1 meter in depth. For sampling, a single inner pipe with a strainer is quietly lowered to the designated position of the observation well, connecting one by one. Once the groundwater stabilizes, an outer pipe is inserted around the outer side of the inner pipe. Finally, both the inner and outer pipes are raised together, and the two sampling pipes, which are in a sealed state at each depth, are separated, allowing for the collection of groundwater in an undisturbed condition.
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Company information
Marui is promoting the development of new testing equipment and the automation of testing devices through the introduction of cutting-edge technology, and has released the automatic pressure testing machine "Hi-ACTIS-2000," a concrete freeze-thaw testing device, and the specimen surface polishing machine "Haikenma Tsuru Tsuru." Additionally, the simple ground bearing capacity measuring device "Caspole," developed through collaboration between government, academia, and the private sector, is also a significant achievement. To continue making further advancements as a comprehensive testing machine manufacturer that creates an environment for the 22nd century, and to meet our customers' expectations, we will continue to make even greater efforts.