Monitoring

Translation : Français fr

Monitoring involves putting in place the tools and skills needed to ensure the safety and reliability of the demonstrator in order to control risks, manage bypasses in the event of non-compliance and define the system's limits. A tool for monitoring, collecting and displaying data from the continuous sensors and analyses carried out by a specially created laboratory will also be created.

To guarantee the safety of reused water, all stages of its production must be monitored: water resource, storage before treatment, treatment, storage before reuse and distribution.

To make the most of them, it is necessary to characterise the co-products.

MONIN, INSA and CHEMDOC will be working with OiEau to define the best technical solutions (sensors, laboratory and data visualisation).

 

Defintion of the water and co-product quality parameters, the monitoring scheme and selection of the sensors to be used (action B3.1):

  • Stage 1: Validate the physico-chemical and bacteriological parameters of the water and co-products. A booklet of water quality parameters will be drawn up by OiEau and will include information on the origins of these parameters, the benefits of monitoring them, the related risks, detection methods, regulatory values and health controls. It will be a tool for sharing with partners and stakeholders (ARS and DDCSPP). This phase will take into account the requirements of action C1 and the data from A1.
  •  Stage 2: Validate the frequency of analyses to be carried out: based on a compromise between risk, importance, cost and technical possibilities, the parameters will be analysed on the basis of spot samples.
  •  Stage 3: Confirm the choice of on-line sensors, already studied before the LIFE project between MONIN, INSA and OiEau:

- Refractometer

- Total Organic Carbon (TOC), Turbidimeter and Volatile Fatty Acid analysis

- Microbial load analyser

- Multiparameters: pH, dissolved oxygen, redox and conductivity

 

  •  Stage 4: Determining the location of the sensors and flow measurement: to integrate the measurement devices in the best possible way, OiEau will visit the MONIN site to define the locations.
  •  Stage 5: Drawing up the operating manual for the monitoring system

- Describe the "maintenance/intervention" modes for the sensors, analysers, meters and flowmeters, to ensure that the process operates while they are being monitored.

- Define drift and non-compliance alarm levels

- Define protocols for adapting processes in the event of non-compliant water quality at the inlet and outlet of each treatment stage.

- Recommend equipment cleaning/control operations (type/frequency).

Based on the results of B3.1, specifications will be drawn up for the purchase of sensors, and recommendations for operating modes will be incorporated into the functional analyses of the demonstrator's PLCs (action B2.2) and qualified in action B4.

 

 

Creation of a laboratory on the MONIN site and training of laboratory technicians (action B3.2)

 

  •  Stage 1: Creation of a laboratory: the premises will be provided and fitted out by MONIN (action B2.1), on the basis of IOWater recommendations. The MONIN operations technician will be in charge, assisted by a laboratory technician for the following tasks:

- Drawing up specifications for the purchase of equipment (see B2.1)

- Publication of a MONIN call for tenders

- Technical analysis of tenders by IOWater and MONIN

- Start-up and initial analyses by IOWater experts and MONIN staff involved.

 

  •  Stage 2: 8 on-site training sessions for MONIN and CHEMDOC staff on laboratory management.

Training content :- Day-to-day management of the laboratory in accordance with Quality, Health, Safety, Environment and Good Laboratory Practice rules

- Analyses for monitoring water intended for human consumption

- Water bacteriology: basic analyses

- Applied laboratory metrology

- Operation and maintenance of water quality sensors

- Operation of ultrafiltration and reverse osmosis membranes

- Water disinfection

- Audit and control of water production facilities

 

 

Development of a tool for collecting and displaying monitoring data for all flows (action B3.3)

 

This involves developing an operating and monitoring logbook and a tool for collecting, displaying and reporting all the flows and data from the 2 CHEMDOC prototypes, the on-line sensors connected to the PLCs with data logging, and the analyses carried out by the MONIN teams.