HydraSleeve. Purge-free sampling

Description

The passive HydraSleeve is designed to capture a "core" of water from a defined interval of the aquifer without altering the water table level or disturbing the water column. Unlike traditional methods that require purging large volumes before taking the sample, this sampler moves upward through the target zone and automatically fills with the aquifer's natural water, ensuring the sample reflects the original chemical parameters without mixing or significant agitation. Its disposable and easy-to-use design makes it ideal for quick and reliable environmental analysis.

Features

• Passive sampling without purging: collects water directly from the target interval without prior extraction of large volumes.
• Flexible and self-sealing: the sealed sleeve only opens during recovery to collect the sample.
• Quick and simple: sampling operation in a few steps that can be completed in minutes per well.
• Low cost: eliminates expensive equipment and unnecessary water purging.
• Lightweight and portable: easily transported and used in wells of various diameters.
• Broad compatibility: suitable for diverse chemical compounds such as VOCs, SVOCs, metals and other parameters of environmental interest.

Applications

• Environmental monitoring of groundwater at contaminated or regulated sites.
• Remediation assessment to verify the effectiveness of treatments.
• Monitoring of low-yield wells where purging is not feasible.
• Sampling of various compounds: VOCs, SVOCs, metals, pesticides, PFAS, among others.
• Vertical contaminant profiling using multiple units for different depths.

Performance

1. Placement: The sampler is folded and inserted to the desired depth of the well.
2. Equilibration: It is allowed to rest briefly so the surrounding water returns to its natural state.
3. Capture: As the sampler is retrieved upward, the valve opens and the sleeve captures a "core" of water representative of the interval.
4. Automatic closing: The valve closes, sealing the sample until it is transported for analysis.

Advantages

• Time saving: significantly reduces the duration of sampling compared to traditional methods.
• Cost reduction: does not require purging or water waste management.
• Representative samples: faithfully reflects the in-situ conditions of the aquifer, with minimal alteration.
• Easy implementation: requires no pumps or specialized training.
• Applicable in low-yield wells: works even in wells with slow recharge where other methods fail.