/

/

/

La santé d’une communauté, lue dans ses eaux usées.

Les eaux usées portent les signes d’une infection des jours avant que les gens ne consultent, pour toute la communauté et de façon anonyme. Des préleveurs asservis au débit, des débitmètres et des capteurs de qualité dans les stations d’épuration et les égouts rendent ces échantillons comparables et donnent aux laboratoires et à la santé publique le contexte dont ils ont besoin.

Industrie

Santé

Mesures

4

Sources citées

3

1. Santé · Surveillance des eaux usées

   Signals before symptoms

   Les eaux usées portent les signes d’une infection des jours avant que les gens ne consultent, pour toute la communauté et de façon anonyme. Guidance now recommends wastewater surveillance and the recast wastewater directive includes it, but results only compare across days and places when samples are flow-proportional and normalised.

2. Ce qui est mesuré

   Flow, samples and quality

   Flow meters at treatment plant inlets and sewer points measure flow continuously, autosamplers take flow-proportional composites, and water quality sensors at each point record the context laboratories need to normalise results, such as dilution after rain. Each reading carries its time and its quality flags.

   Instruments

   Flow meters · Autosamplers · Water quality sensors

3. Le nœud de base

   Comparable samples

   The node drives flow-proportional sampling, records each composite’s flow and quality, flags rain dilution and sampler faults, and sends sample metadata ahead of the laboratory result, so public health can read rises with confidence. Nothing is lost when a link drops; the node keeps it.

4. Radio et liaisons

   From sewer to surveillance

   Sampling points send flow, quality and sampler state over cellular, and sewer points away from power report over a low-power link. Metadata reach laboratory and public health systems with each sample. Each link is chosen for the place, not from a catalogue.

   Liaisons

   Réseau mobile public · LoRaWAN

5. Comment ça marche

   From a rising signal to early action

   Over a week, normalised signals rise in two catchments while clinical cases are flat. Public health issues local advice and readies clinics; cases climb a few days later in exactly those areas, and services are already prepared. Every step is kept on the record.

6. De la commande à l’exploitation · Commande

   Scope the programme

   The scope reads the programme’s plants, catchments, laboratories and reporting duties. Nexus Observatory Inc. returns the sampling design, metadata flow and a price per point and per year. Every assumption in the scope is written down and priced. The scope is agreed before any site work begins.

   Planifier un déploiement

7. De la commande à l’exploitation · Relevé

   Survey sampling points

   Crews survey plant inlets and sewer points with operators: flow measurement, sampler access, safety in confined spaces, power and coverage. Findings are recorded with drawings. Every finding is kept with the site record for the crews who follow. Findings shape the kit for each site before anything is built.

8. De la commande à l’exploitation · Autorisations

   Utility and safety approval

   Utilities approve equipment at their plants and sewers, confined space rules govern sewer work, and data sharing with public health is agreed. Every approval is kept with the point record. Approvals are tracked site by site, so nothing waits unseen.

9. De la commande à l’exploitation · Fabrication

   Build and test

   Samplers, flow meters and sensors are configured, gateways and the node set up for flow-proportional sampling and enrolled with their identities, and the chain is tested on the bench. Test results travel with the kit to the site. Nothing ships until the whole kit has passed its tests together.

   Ouvrir le configurateur de stations

10. De la commande à l’exploitation · Installation

    Install at inlets and sewers

    Crews install samplers, flow meters and sensors at inlets and sewer points under confined space rules, connect gateways, power and backhaul, and record every point. The site record is updated before the crew leaves. Crews follow the site safety plan throughout the work.

11. De la commande à l’exploitation · Mise en service

    Commission with parallel samples

    Chaque nœud prouve son identité. Flow is checked against plant meters, composites against manual parallel samples, and metadata reach the laboratory and public health systems. Results are signed and kept with the site record. Acceptance is recorded with the owner before handover.

12. De la commande à l’exploitation · Exploitation

    Read the community

    Public health receives normalised results with flow and quality context, sees trends by catchment, and acts on rises days before clinical cases climb. Every sample keeps its chain of custody. Reports for owners and funders come from the same record.

13. De la commande à l’exploitation · Maintenance

    Service and audit

    Samplers are cleaned and serviced, flow meters verified, sensors recalibrated and software updated in rings. Chain of custody records are audited, and every change is kept with the point record. Spares and procedures travel with the crews. Maintenance history stays with each site for its whole life.

    Réserver des services sur le terrain

14. Produits de données

    For public health and laboratories

    Public health agencies receive normalised wastewater signals; laboratories receive sample metadata; utility operators receive sampler and flow alerts; health and environment authorities receive programme reports, each tied to catchment, sample and date. Each product carries its site, time and quality flags.

    Voir les produits de données

15. Preuves

    Guidance and the directive

    Sampling follows the European recommendation on wastewater surveillance and the recast urban wastewater directive, and international guidance on environmental surveillance. Every sample keeps its flow, quality and chain of custody record. Records are open to the people who must check them.

    Référentiels

    Commission Recommendation (EU) 2021/472 · Directive (EU) 2024/3019 · Environmental surveillance for SARS-CoV-2 to complement public health surveillance

16. Ce que vous obtenez

    Surveillance environnementale et des conditions de permis

    Surveillance des émissions, de la qualité de l’eau, du bruit et des poussières pour les conditions de permis, avec étalonnage traçable et dossiers de preuves. Fourni sous forme de service géré et licence de données, pour industrial operators, municipalities, regulators. Scale: Site to portfolio. Service levels are written as numbers you can measure on your own dashboard.

    Parler aux ventes

17. Étape suivante

    Planifier avec nous : surveillance des eaux usées

    Tell us the site, the measurements and the rules it answers to. We reply with a survey proposal, a design and a scope for wastewater surveillance. An engineer replies with a survey proposal and a scope, and the plan grows from one site to the network you need, at your pace.

    Planifier un déploiementOuvrir le configurateur de stationsOuvrir le Studio

01Le lieu et ses dangers

Où il fonctionne, et ce qui peut mal tourner.

Operating contextWastewater surveillance for public health is recommended in European guidance and now included in the recast urban wastewater directive, and international guidance sets how environmental surveillance complements case surveillance. Results are only comparable when samples are flow-proportional and normalised.

Dangers

• Samples not proportional to flow
• Rain diluting signals
• Samplers failing silently
• Results without flow or quality context
• Slow paths from sample to public health

02Ce qu’il faut mesurer

Quoi, où, à quelle fréquence, et selon quelles règles.

Chaque mesure indique où elle est prise, à quelle fréquence, et la norme ou la réglementation publique qui la fonde. Les numéros de la colonne des sources ouvrent la source citée plus bas.

03La pile d’observation

D’un module de base à un réseau.

Les mêmes briques à chaque échelle : des instruments et un nœud de base, un site avec sa radio, une flotte exploitée comme un tout, et un réseau fédéré sur le protocole ouvert.

1. 01

   Unité de base

   A sampling point: an autosampler, flow meter and water quality sensors on an industrial gateway.

   Build a station →
2. 02

   Site

   A plant or catchment: sampling points at the inlet and in sewers, with an edge node.

   Plan a site →
3. 03

   Parc

   A national programme’s plants on one surveillance view.

   Managed offers →
4. 04

   Réseau

   Programmes share results and metadata with public health and international surveillance.

   The open protocol →

• 01Débitmètre
• 02Sonde de qualité de l’eau
• 03Passerelle OT (OPC UA, Modbus)
• 04Nœud de périphérie (Wedge)
• 05Modem/routeur cellulaire

Radio et liaisons

Réseau mobile public

Sampling points send flow, quality and sampler state over cellular.

Radio et liaisons

LoRaWAN

Sewer points away from power report flow and level over a low-power link.

Edge computeThe node drives flow-proportional sampling, records each composite’s flow and quality, flags rain dilution and sampler faults, and sends sample metadata ahead of the laboratory result.

PowerPlant points run from plant power; sewer points from batteries or small solar panels.

04Comment ça marche

De l’instrument au produit.

Le parcours d’une observation, niveau par niveau, avec l’interface de chaque liaison et une nomenclature en dessous ; puis comment ce nœud devient un site, une flotte et des réseaux fédérés.

05De la commande à l’exploitation

Chaque étape, du premier appel à un site en service.

La même équipe et le même dossier portent le travail, du cadrage à la maintenance.

1. 01 Order

   Scope the programme

   The scope reads the programme’s plants, catchments, laboratories and reporting duties. Nexus Observatory Inc. returns the sampling design, metadata flow and a price per point and per year. Every assumption in the scope is written down and priced. The scope is agreed before any site work begins. 12

2. 02 Survey

   Survey sampling points

   Crews survey plant inlets and sewer points with operators: flow measurement, sampler access, safety in confined spaces, power and coverage. Findings are recorded with drawings. Every finding is kept with the site record for the crews who follow. Findings shape the kit for each site before anything is built.

3. 03 Permits

   Utility and safety approval

   Utilities approve equipment at their plants and sewers, confined space rules govern sewer work, and data sharing with public health is agreed. Every approval is kept with the point record. Approvals are tracked site by site, so nothing waits unseen.

4. 04 Build

   Build and test

   Samplers, flow meters and sensors are configured, gateways and the node set up for flow-proportional sampling and enrolled with their identities, and the chain is tested on the bench. Test results travel with the kit to the site. Nothing ships until the whole kit has passed its tests together.

5. 05 Install

   Install at inlets and sewers

   Crews install samplers, flow meters and sensors at inlets and sewer points under confined space rules, connect gateways, power and backhaul, and record every point. The site record is updated before the crew leaves. Crews follow the site safety plan throughout the work.

6. 06 Commission

   Commission with parallel samples

   Chaque nœud prouve son identité. Flow is checked against plant meters, composites against manual parallel samples, and metadata reach the laboratory and public health systems. Results are signed and kept with the site record. Acceptance is recorded with the owner before handover. 13

7. 07 Operate

   Read the community

   Public health receives normalised results with flow and quality context, sees trends by catchment, and acts on rises days before clinical cases climb. Every sample keeps its chain of custody. Reports for owners and funders come from the same record. 32

8. 08 Maintain

   Service and audit

   Samplers are cleaned and serviced, flow meters verified, sensors recalibrated and software updated in rings. Chain of custody records are audited, and every change is kept with the point record. Spares and procedures travel with the crews. Maintenance history stays with each site for its whole life.

06Produits de données et intégration

Ce qu’il fournit, à qui, et dans quels systèmes.

Produits de données

• Normalised wastewater signalsPublic health agencies
• Sample metadataLaboratories
• Sampler and flow alertsUtility operators
• Programme reportsHealth and environment authorities

Intégration

• LaboratoriesSample metadata reach laboratory systems with each sample.
• Public healthResults join surveillance dashboards with context.
• UtilitiesSampler alerts reach plant operations.

Exchanged through OPC UA, OGC SensorThings API, HL7 FHIR.

07Questions des acheteurs

Avant de cadrer votre projet.

Is it anonymous?

Yes. It measures a whole catchment, not people.

Why flow-proportional?

So results compare across days and rain.

Does the lab change?

No. Laboratories keep their methods and receive better metadata.

Can it watch new pathogens?

Samples can be tested for whatever public health needs.

08Ressources

Les sources de cette page.

Normes, réglementations et lignes directrices publiques, citées là où elles s’appliquent. Chacune ne s’applique que dans sa juridiction ou son champ.

1. 1Commission Recommendation (EU) 2021/472 on a common approach to establish a systematic surveillance of SARS-CoV-2 and its variants in wastewaters in the EUEuropean Union · 2021
2. 2Directive (EU) 2024/3019 concerning urban wastewater treatment (recast)European Union · 2024
3. 3Environmental surveillance for SARS-CoV-2 to complement public health surveillance: interim guidanceWorld Health Organization · 2022

09Voir aussi

Cas d’usage et solutions.

10Santé : domaines spécialisés

Les autres domaines de cette industrie.

Présentez-nous le site.

Planifiez un déploiement, configurez une station, modélisez-la dans le Studio ou parlez à l’équipe commerciale. Le formulaire indique qui reçoit vos coordonnées.