Sedimentation box for sampling large volumes of water

#particle-bound pollutants #microplastics #wastewater #flowing waters #monitoring
The picture shows metal sedimentation boxes
- Particle traps for pump operation and use in water bodies (Photo M. Ricking, Federal Environmental Agency FG III 2.6, 2019).

Particle traps are used for integrative sampling of large volumes of water over longer periods of time in environmental monitoring projects and provide a cost-effective and efficient means of sampling suspended solids. They thus provide a good basis for monitoring measures in water bodies or plants.

In contrast to simple random sampling, integrating methods are particularly suitable for the representative recording of daily and weekly water quality variances that cannot be represented by a single sampling. It is the only way to detect illicit discharges and shock loads.

Controlled sampling of representative water volumes at monitoring stations and with the deployment of multiple particle traps in the water body (cross and depth profile) will allow for more reliable data which, when supplemented with discharge data, can be used for balancing and load calculations.

The robust and contamination-free stainless steel design eliminates cross-contamination during sampling. The polished inner surfaces prevent extensive adhesion of particles or biofilm growth and facilitate the sampling process enormously. Draining can be performed by vacuum aspiration or via direct pouring.

Due to the special optimization for sampling small and light particles with specific densities even below 1 g/cm³, this sedimentation box also captures suspended particles that could not be sampled with previous passive samplers. The collection rates of this design are improved and have been first validated by laboratory experiments as part of the BMBF joint project RUSEKU.

Three-chamber sedimentation box for the determination of suspended solids loads. Dimensions: 400 x 300 x 165 mm; material: stainless steel V2A, material thickness 2 mm, electropolished surface.

Lower part with 2 brake plates and G1" connections for inlet and outlet including 2 extension tubes G1" and closing caps.

Screwable lid with 3 brake plates, handle and ventilation valve.
Silicone flat seal between bottom part and lid.
Wing screws for easy screwing of the lid.
Eyebolts for suspension in the water.
Overall dimensions (L x W x H): 450 mm x 350 mm x 210 mm.
Weight: 16.5 kg when empty. 
Various adapters for integration into systems on request.
Other sizes and designs on request.

Water resource: Drinking water, Groundwater, Process water, Rainwater, Salt water, Surface water, Treated water, Wastewater
Type of product:
  • Monitoring & analytics
Application sector: Agriculture, Cities and municipalities, Industry, Natural water environment, Water resource management
Funding measure: Plastics in the environment
Project: RUSEKU

Contact and partners

  • Umweltbundesamt,
  • ,
Mathias Ricking

Umwelt-Geräte-Technik GmbH,

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