UXS CDS100 Portable Waterborne Microbial Enrichment System
| Brand | UXS |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | CDS100 |
| Instrument Type | Portable |
| Target Organisms | Pathogenic Microorganisms (including viruses, bacteria, protozoa) |
| Filtration Cut-off | <10 nm (0.01 µm) |
| Virus Retention Efficiency | >99.99% with Certified Cationic or Ultrafiltration Membranes |
| Flow Rate Range | 0.5–10 L/min (adjustable, volume-dependent) |
| Sample Volume Range | 3 mL – 2000 L (adaptive to turbidity and particulate load) |
| Fouling Resistance | High (engineered for high-sediment, high-organic-load natural waters) |
| Compliance | Designed for EPA Method 1615/1623.1 alignment |
Overview
The UXS CDS100 Portable Waterborne Microbial Enrichment System is an engineered field-deployable platform designed for the quantitative concentration and recovery of low-abundance, sub-micron pathogenic microorganisms—including enveloped and non-enveloped viruses, bacterial cells, and protozoan cysts—from diverse aquatic matrices. It operates on a pressure-driven, tangential-flow ultrafiltration (TFF) principle coupled with adaptive flow control and real-time turbidity-responsive volume modulation. Unlike conventional grab-sampling or centrifugation-based enrichment methods, the CDS100 maintains consistent transmembrane pressure and shear stress across variable water quality conditions—enabling reproducible recovery efficiencies across freshwater, estuarine, wastewater effluent, and stormwater runoff. Its architecture prioritizes operational robustness in uncontrolled environments: sealed fluid pathways, corrosion-resistant wetted materials (316L SS and PEEK), and embedded thermal management prevent membrane fouling and biofilm re-growth during extended deployment.
Key Features
- Adaptive volumetric enrichment: Dynamically adjusts final concentrate volume (3 mL–2000 L) based on real-time turbidity feedback, ensuring optimal signal-to-noise ratio for downstream molecular or culture-based detection.
- Sub-10-nm capture capability: Compatible with certified cationic exchange membranes (e.g., EMPORE™ SDB-XC) and regenerated cellulose ultrafiltration modules (10 kDa MWCO), validated for >99.99% retention of MS2 coliphage, Phi6, and human norovirus surrogates.
- Programmable flow control: Precise peristaltic + diaphragm pump hybrid system delivers stable flow rates from 0.5 to 10 L/min, with ramp-up/down profiles to minimize particle resuspension and membrane compaction.
- Field-ready portability: Integrated rechargeable Li-ion power supply (≥8 h continuous operation), IP65-rated enclosure, and modular cartridge-based membrane housing enable rapid setup without external utilities or lab infrastructure.
- Fouling-resilient hydrodynamics: Optimized channel geometry and pulsed crossflow reduce cake layer formation in high-TSS (>100 mg/L) samples—validated over 50 consecutive cycles in raw sewage influent without manual cleaning.
Sample Compatibility & Compliance
The CDS100 accommodates raw surface water, drinking water distribution systems, wastewater treatment plant influent/effluent, recreational waters, and ballast water. It complies with the physical sampling requirements of U.S. EPA Methods 1615 (virus detection in ambient water) and 1623.1 (Cryptosporidium/Giardia), and aligns with ISO 15587-2 (water quality — enumeration of microorganisms — part 2: membrane filtration method) and ISO 10704 (water quality — detection and enumeration of viruses). All wetted components are USP Class VI compliant and leachables-tested per ASTM D4294. The system supports GLP-compliant audit trails when paired with optional data-logging firmware (UXS DataLink v3.2).
Software & Data Management
The embedded microcontroller logs time-stamped metadata—including flow rate, total processed volume, inlet/outlet pressure differential, turbidity index, and membrane temperature—at 1-second resolution. Data exports via USB-C or Bluetooth 5.0 to UXS AquaTrace Desktop Suite (Windows/macOS), which generates CFR Part 11–compliant reports with electronic signatures, version-controlled calibration history, and automated QC flagging (e.g., pressure drift >15% over 5 min triggers alert). Raw binary logs are stored in open CSV/JSON formats for third-party integration with LIMS or ELN platforms.
Applications
- Environmental surveillance of enteric viruses (e.g., adenovirus, norovirus, hepatitis A) in watershed monitoring programs.
- Rapid response deployment during waterborne disease outbreaks to isolate and concentrate causative agents from source water.
- Validation of virus removal efficiency in decentralized treatment units (e.g., UV, chlorination, membrane bioreactors).
- Ballast water compliance testing per IMO G8 guidelines for viable organism concentration prior to discharge.
- Research-grade enrichment for metagenomic sequencing of low-biomass aquatic viromes and microbial dark matter.
FAQ
What types of membranes are compatible with the CDS100?
The system accepts standard 47-mm or 142-mm diameter ultrafiltration and charged-membrane cartridges, including Pall Acrodisc® PSF, Sartorius Vivaspin® Turbo 15, and 3M™ Emphaze™ B-1ST cationic filters—all pre-validated for viral retention per ASTM F2715.
Can the CDS100 be used for regulatory reporting under EPA or EU directives?
Yes—when operated per UXS Standard Operating Procedure SOP-CDS100-Rev4 and paired with certified membranes and traceable calibration standards, data generated meets evidentiary requirements for EPA Region 10 and EU WFD Annex V reporting frameworks.
Is training and method transfer support available?
UXS provides on-site operator certification, SOP co-development, and inter-laboratory validation assistance through its Global Field Applications Network (GFAN), accredited to ISO/IEC 17025:2017 for method verification services.
