Operational Assistance

Operational Assistance

Water treatment plant management

Properly managing a water treatment plant is a profession. It does not only involve delivering high-quality effluent, but also gaining ownership of the tool and using it to its best effect. Again, each water treatment plant is unique in terms of its size, its technology, its own risks, its objectives or the proficiency of the team in charge. Our engineers and technicians as there to support you with the operation of your facility. 

Plant monitoring

As well as the legal analyses, we know from experience that it is possible to assess whether a facility is operating correctly by using simple indicators that are quick and cheap to put in place.

Plant management tools and decision-making aid

A single principle: neither too much nor too little. Often, plentiful operating data accumulate without this being transformed into the ability to define guidelines to optimise the facility. And when there is nothing, … Hence the importance of properly targeting, reporting, processing and archiving the really useful indicators, either for water treatment itself or for other issues: energy, reagents, malfunctions, sludge quality, etc.

That is why, we offer tools developed in-house, using xls, calibrated to your plant, to:

  • Establish reports of relevant information and indicators recorded from the day-to-day management of the plant (influents, biology, effluents, sludges, reagents, energy, etc.).
  • Simulate performance under different operating conditions (wastewater flows, age of sludge, quantity of reagents, basin temperature, etc.).

WWTP simulation software 

Off-the-shelf effluent treatment dynamic simulation software programs are available.  They are useful both for managing a plant in all its aspects and for designing the initial project or upgrades. We provide support to the user with calibrating models and with using the software.

Training for water treatment plant operators

We provide bespoke training for plant operators in all the areas included in our services.

Solving malfunctions

Malfunctions are an integral part of the life of a wastewater treatment plant, even in our pilots at CEBEDEAU; we learn a lot from them. Many are not serious - to begin with at least, hence the importance of being able to detect them in time.


On the basis of our long expertise in the field (“Experience is a candle that illuminates only the bearer” Confucius), the main malfunctions experienced are:

  • In biological plants: Problems of separation (bulking), nitrification and odours, themselves created by multiple causes.
  • In physico-chemical plants: Coagulation-flocculation problems, precipitation of metals, hydraulic loading.


Our laboratory tests and pilots are effective tools that allow us to identify the causes of malfunctions and to most often solve them by making simple operational recommendations.

Mapping of pollutant flows

Whether it is to identify the origin of pollution (pollution tracking) or to define or optimise treatment and management of the water, mapping of flows is an excellent pre-requisite for any serious project.

Our experience and our equipment allow us to be able to establish a reliable mapping on the basis of measurements and sampling suited to the many circumstances in the field:

  • Flow metering on pipes or in open channels;
  • Refrigerated sampling proportional to the time, the flow, the rainfall;
  • Continuous measurements and recording (pH, temperature, conductivity, etc.).

Cost reductions

The reduction of water sanitation costs requires improved treatment performance (reduction of the tax) and optimisation of the consumption of water, energy and reagents. Beyond the simple savings that can be made, reducing consumption has become a societal issue.

We identify reduction possibilities, study the technical solutions and assess their relevance for each level of action.

  • Energy

A water treatment plant is a good target for energy savings, mainly by adjusting aeration or using appropriate electromechanical equipment. More fundamentally, wastewater is full of thermal and chemical energy. The use of liquid/solid biomethanisation technologies is for example a good alternative recovery system whenever feasible.


  • Reagents

Reagents are a valuable aid for removing certain compounds or to structure the biomass, but not always. They may be a significant cost item, hence the importance of the correct choice and dosage.


  • Water

The increasing needs of water and the reduction in available resources require rethinking in how water is used in industry. From an economic point of view, it must be considered as a raw material in its own right in factories.. Consuming more water, means spending more: whether to buy, capture or treat it. In general, costs relating to treatment are proportional to the volume to be treated (sizing, reagents, energy). Fighting waste, reducing pollution at source, recycling and reusing water are the main ways of reducing one’s consumption.

Validation of technologies, plant proposals.

As independent experts, we are able to identify the treatment processes and technologies which will enable you to achieve the required water quality.

Our approach is objective and concerned with the technical and economic relevance of the choices made.

Paul Henry
Sanitary Engineering Director
+32 4 254 98 27