Managing and operating treatment plants

As part of its contract with local authorities, Veolia Water manages and operates the facilities. Over the years Veolia Water has come up with all kinds of solutions to assist local authorities in dealing with problems they might encounter in the management of the water cycle.

 

Improving the performance of facilities

Facilities quality

As water quality is directly linked to that of the facilities, Veolia Water:

  • (constantly) ensures best use is made of facilities
  • develops the best techniques for treating water in order to:
    - reduce water turbidity
    - control the micro biological quality
    - or also to optimize the disinfection process

Risk prevention programs

In order to be able to take preventative action regarding these issues, Veolia Water also implements risk prevention programs. This has led to practical initiatives such as:

  • using a process which prioritizes risks (HACCP) to inform prevention programs
  • increasing site surveillance, for example, against possible acts of willful damage or possible terrorist threats
  • safeguarding the water supply against backflow

Managing storage tanks

The tanks make it possible to optimize water management and distribution.

The tanks are used to ensure that there is a continuous water supply while at the same time maintaining water quality.

Proper management of the tanks entails design, rigorous construction and efficient maintenance of the tanks which calls for preliminary modelling and efficient cleaning methods.

Managing the water network

The water supply company is faced with specific difficulties when trying to maintain water quality in the water network. This is because water is a living environment which has a tendency to change over time.

Depending on the speed and the amount of time it remains in the system, water will react when it comes into contact with materials.

The supply network consists of numerous facilities and equipment. The majority of these are located underground. It is subject to a great deal of disruption from public works (maintenance work, road works, disinfection). It also comes into contact with the external environment (connecting customers to the mains).

As a result, water is susceptible to external factors or the consequences of operating incidents such as backflow, contamination and poor disinfection procedures.

Maintaining water quality

Veolia Water has introduced additional systems in order to maintain water quality:

  • improving the water quality produced at the water treatment plant and, if need be, controlling the mixing of water in order to prevent problems such as corrosion, forming of deposits etc.
  • designing quality systems from the point of view of their size and use, but also choosing suitable equipment that will preserve water quality
  • optimizing the movement of the water within the network to avoid water stagnating and hydraulic disturbances
  • if necessary, installing rechlorination units within the system
  • adjusting maintenance and rehabilitation programs
  • preventing incidents likely to adversely affect the quality of the water supply
  • safeguarding the network through installing devices to prevent against backflow
  • introducing rigorous operational procedures, primarily those of disinfection following work on the network
  • implementing a program to monitor water quality tailored to the size of the network and the distinctive features of the different sectors...

Sade

The design, build, maintenance or rehabilitation of the water supply system are the core businesses of Sade.

Sade is a specialist company of Veolia Water which operates in numerous countries around the world.

Thanks to a staff with hands on experience, it guarantees the owners of these systems:

  • continuity of service
  • a speedy response in carrying out necessary maintenance work
  • and minimal inconvenience during maintenance works