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The 2021 halpern is closed but not MABAREX!

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Following our Prime Minister's request, Mabarex is closing its 2021 Halpern office in Montreal today at 5 p.m.  That said, we were already telecommuting and so Mabarex continues to be active!

Of course, we will no longer have a reception center to receive your calls, but you will be able to contact our employees directly.  You can also use the following general email if you have a particular request or are trying to reach someone:

In addition, here is a list of contacts at Mabarex that might be useful to you:

The leadership of our Prime Minister and of Quebec authorities reassures us and it is only a matter of time when we can meet again.  In the meantime, take care of yourself, your family and try to see the opportunities in this situation.


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We all face an extraordinary situation and would like to share with you the actions Mabarex is taking to mitigate or even counter the impact of COVID-19 on our activities, but above all on our employees, customers and partners.

We take your health very seriously and wish to help limit the spread of COVID-19 by adopting measures in accordance with the recommendations of the Ministry of Health and Social Services (MSSS). We will observe the following preventive measures:

  • Abandoning direct contacts for greetings, such as handshakes.
  • Washing hands with soap on a regular basis.
  • Use of an alcohol-based disinfectant - available at reception.
  • Observing hygiene rules when coughing or sneezing: cover the mouth and nose with arm to reduce the spread of germs.

You will have to meet with members of our team. In order to limit your exposure to the risks of COVID-19, we are happy to offer you safe alternatives such as a postponement of meetings or a remote meeting (Teams, Facetime, Skype, Messenger, phone, etc.).

Each person has a role to play in reducing the risk of virus spread; prevention and control of infections remain the best way to prevent them.

Please note that for the time being all of our activities are continuing as normal, but if this extraordinary situation ever leads to changes in our activities and could impact projects, we will let you know. In this sense, we are also in contact with our suppliers in order to take the necessary measures and to be able to notify you if necessary.


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Montreal, September 24th, 2019 - For several days, youth have been mobilizing around the world to demand concrete actions from their elected representatives to fight against global warming. Quebec is part of the movement, closing some schools to allow their students and their parents to participate in the global climate strike day on Friday.

If the actual greenhouse gas emissions rate is maintained, the planet temperature will increase by three to four degrees by 2050.  This warming will have a major impact on the environment in which we live, work and play.  In a direct way, we see it with the recent events here in Quebec, but also indirectly by the increase in poverty in general.

MABAREX works in the environmental field and can only welcome the movement for significant changes aimed at reducing the impact of our current and past actions.

We would like to give our employees the opportunity to participate in the World Climate Strike in Montreal to show our support to this cause. On Friday September 27th, MABAREX will close its doors in the afternoon, allowing our team to support global climate actions.

It is the first time that we take such a decision and we understand that this could have an impact on our customers. Do not hesitate to contact us so that we can answer your requests by September 27th.

Every day, we work to improve the environment, and this is the leitmotif of our employees. It is a continuation of our actions in favor of the environment. It is time to take actions to protect nature for future generations.



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MABAREX won a major contract for the design-build of a new leachate treatment plant for the City of Montreal

The plant will be located south-west of the Saint-Michel Environmental Complex (CESM) and will have the capacity to treat approximately 345,000 cubic meters of leachate per year.


Montreal, September 5, 2019 - MABAREX won a major contract with the City of Montreal that will allow to treat leachate from solid waste buried for decades in this former quarry. The plant, which will be in operation in 2021, will produce an effluent that meets the environmental criteria established by the authorities.

The contract, valued at nearly $14 million involves the design, construction and operation for the first year of the new treatment plant where water will be pumped from the bottom of the former Miron quarry.

The project involves the construction of a 1.5 km supply line that will carry water to the new plant and MABAREX SMBR™ biological reactor, a proven technology in several other projects here in Quebec and worldwide.

"We are proud to use our know-how to contribute to the City’s environmental objectives.  The capacity of MABAREX, coupled with the expertise of our partners, allows us to carry out the project with rigor" commented Georges Szaraz, President and CEO of MABAREX.


Since 1983, MABAREX designs and builds water treatment systems that meet the changing needs of its customers, value their investment and preserve the water resource.

MABAREX has completed more than 1000 projects in America, Europe, Africa and Asia.

For more information :

Our partners :

About Saint-Michel Environmental Complex (CESM)

CESM Announcement


Reducing your chemical costs in four steps

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The person in charge of maintenance in an agri-food production plant regularly faces many challenges. Preventive maintenance of production equipment, breakage and emergency repairs, as well as work schedule planning are part of his daily life. For some maintenance managers, wastewater treatment adds to these tasks.

Costs associated with the operation of a water treatment system are significant, whether operating and maintenance costs of the equipment itself or the purchase of chemicals for its operation. Here are four pointers that, when implemented, significantly reduce the costs of chemicals.


When the time comes to choose the chemicals to use for your effluent treatment, it is good practice to call in a specialized chemical supplier. The supplier will make a series of jar tests on your raw water (the wastewater entering the treatment unit) in order to determine the best combination of products and their dosage for an optimal performance of the treatment system in place. These reagents allow water to be separated from the various pollutants it contains. The wastewater treatment system will concentrate the pollutants in order to remove them from the water, thus allowing a treated water discharge in accordance with regulations in place.

Does your supplier have access to a wide range of reagents?

Many suppliers of water treatment products are not manufacturers; they have limited access to the range of chemicals available on the market. The representative or technician, who is selecting the products he will ultimately sell you, must work with a limited catalog of products he has to offer. In the majority of cases, he will be able to find a combination of products and develop a recipe for treating your wastewater to the desired level. But will it be the optimal combination?

Does your supplier evaluate the overall impact of his selection?

In these treatability tests, proof alone of the effectiveness of the recipe is not enough. Costs associated with required pH correction caused by using certain reagents, because of the volume of sludge generated, or for sludge disposal, must also be assessed.

The selection of chemicals for wastewater treatment has a financial impact at two levels: the direct purchase cost of these reagents and the cost related to the volume of sludge they generate.


Typically in the food industry, chemicals are used for three applications: cleaning of production equipment, process water conditioning and effluent treatment. In the majority of cases, two different suppliers provide the plant for these reagents.

In most cases, these two suppliers operate independently from each other and, with the exception of selling you products, their goals are very different. The purpose of the sanitary product supplier is to ensure the perfect cleaning of equipment and production areas in accordance with sanitary standards, without taking into account the impact on wastewater treatment. The person who supplies the products for the treatment of your effluents, wants to ensure that he applies the correct recipe for your treated effluent to comply with regulations. Note that his responsibility is to demonstrate that his recipe works at the laboratory scale. However, this does not guarantee the performance of water treatment equipment. In short, he operates independently from the supplier of cleaning products.

Optimizing the cleaning method of production equipment by refining the selection of products used, the dilution volume and rinsing water required can result in substantial savings on chemicals used for your wastewater treatment.

It is therefore advantageous to ensure coordination between the supplier of sanitary cleaning products and the supplier of the effluent treatment products. A global vision of water management and the required additives can only be beneficial. Note that there are suppliers that offer both ranges of chemicals, but they are few in number.


For cleaning and disinfection, once the recipes and dilutions are established, be sure to apply them consistently. Too often, dosing equipment is either inadequate or out of calibration. Efficient and reliable dosing equipment ensures you use the optimum quantity of products at all times. It should be kept in mind that the optimization of the cleaning protocol directly affects wastewater treatment.

For effluent treatment, the optimum dosage is often a challenge, as the type and amount of pollution contained in the effluent varies over time. The use of a buffer tank makes it possible to partially overcome this problem since the variations of the charge to be treated will not take minutes, but hours. Nevertheless, real-time modulation of the reagent dose (proportional metering) is required to minimize the amount of chemicals used and avoid under or over dosage. The use of equipment that reacts in real time to the pollutant load of the raw water saves a lot of money.

It is therefore important to ensure that the dosing and dilution system for cleaning agents are well calibrated, as it is preferable to have a chemical feed proportional to the pollutant load contained in the wastewater to be treated.


There are technical specialists who can globally evaluate the use of chemicals in your plant. Following an analysis of your sanitary cleaning needs and a characterization of your wastewater, these specialists will then have an overview of the situation and a clear understanding of your needs. With this information, they can optimize the dosage of the reagents used or suggest another that would be more efficient.

A specialist with an overview of your operations can save you money.

As you can see, in agri-food production, it is more than desirable to manage overall consumption of chemicals, specifically those required for sanitation and those used for effluent treatment. In addition to a potential reduction in reagent consumption, a reduction in the volume of sludge to be disposed of can be expected. This optimization exercise will therefore certainly generate cost savings.

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