Air treatment

We can consider two main families of solutions.

CAPTURING AT THE SOURCE

This involves capturing pollutants as close as possible to the source generating pollutants in order to prevent them from spreading in the air. This can be done using several collection accessories: an extraction arm, an extraction hood, a hood, an extractor backsplash, a Pouyes ring, an extractor cabin, an extractor wall, an extractor plenum or another vacuum table when it comes to treating a workstation. When the source comes from a production machine, it is possible to connect it directly to the air treatment device via a network of ducts or pipes.

AIR PURIFIER - AIR TREATMENT

Ambient treatment involves capturing ambient pollutants present in the air in your work space. Generally, this method is used when the source emitting pollutants is unknown, diffuse or inaccessible. The devices used are then air handling units or industrial air purifiers.

For source capture, sufficient air speed must be induced. With sufficient airflow, the initial path of the polluted air will be altered and forced to flow into your vacuum system.

Once the capture method has been defined, the principle remains the same. Polluted air is sucked into an industrial air treatment device and passes through several stages of filtration before being thrown outside or reinjected directly into the work space.

Industrial air treatment is essential and makes it possible to control the air quality parameters of the building, namely:

In addition, this will allow you to comply with the law (maximum concentrations of pollutants that the operator breathes at his workstation. The OEL (Professional Exposure Limit Values) are a dust threshold not to be exceeded at a workstation. work. It is considered that only exposure to higher concentrations or over a longer period of time will have consequences on health. Air treatment will allow you to stay below its regulatory thresholds. If your industry does not respect the threshold a chemical agent classified as CMR category 1A or 1B, the workstation must be stopped until the implementation of measures to ensure the protection of employees. (VLEP)

HEALTH AND WELL-BEING IN THE COMPANY

You will ensure the safety and health of your employees. This will lead to a reduction in AR (Sick Leave) and you will thus avoid a drop in productivity. In addition to hazardous dust, many viruses and bacteria are airborne. Filtering the air thus considerably reduces the risk of spreading diseases.

In fact, an air treatment device will reduce the level of dust, which is usually deposited on your floors, your machines and your goods. If the device reinjects the treated air directly into your work space, the calories will be recovered.

INCREASED PRODUCTIVITY

Reduced breakdowns machines mechanical devices and electronic instrumentation need clean air to function properly. Indeed, dust can enter the equipment and cause malfunctions. Most machines are equipped with particle filters to avoid such inconveniences. Unfortunately, they need to be replaced regularly and the finest particles still pass through the filters. This is why it is recommended to purify the ambient air in order to reduce the frequency of machine breakdowns and malfunctions.

Produce quality. Indeed, certain manufacturing processes require controlled air quality in terms of particle numbers (cleanliness) and possibly temperature and humidity. This is the case for clean rooms and gray rooms, in which these parameters are continuously monitored in order to guarantee a sterile room with a controlled atmosphere. Here, the treated particles are microscopic, invisible to the naked eye.

There are many sources of pollution, but the three largest and most recurring are the following:

Pollutants coming from processes. Whether working with wood, metal, plastic, etc., processes such as deburring, milling or sanding produce a large quantity of pollutants.

PROCESS POLLUTANTS

Outside air, which is brought in by wind and drafts, through door openings, and by the pressure difference in buildings, accumulates in your building.

OUTSIDE POLLUTION

The flight of dust linked to the movements of forklifts, for example, by exhaust gases from trucks or thermal trucks, tire wear, gasoline or gas vapors, etc.

There are several types of air handling devices depending on budget, power, options, etc.

1 - INDUSTRIAL DUST COLLECTION AND VACUUMING

By suction and dust removal installation we generally mean an installation composed of a collection network (piping and collection devices at the source), a dust collector (filter with a regenerable filter media such as cartridges, sleeves, pockets, etc. which can be cleaned mechanically or by a manual or pneumatic unclogging device), a motorized suction fan or a suction turbine and piping for evacuating clean filtered air (chimney or exhaust, etc.).

In this family we distinguish:

The different types of dust collectors

Rectangular: Best filtration quality/energy consumed ratio, offers a multitude of customizations. Or Cyclonic: Eliminates large particles by cyclonic effect before filtering finer particles.

Under pressure: The fan pushes the polluted air into the filter. Or in depression: The fan draws the polluted air through the filter.

Explosive atmospheres

In industrial dust collection, dust is classified as explosive, which is why three ATEX zones have been created for explosive dust (20-21-22) and three others for explosive gases/vapours (O-1-2), in order to understand which devices and which types of filter to use according to the ATEX zone.

2 - GAS TREATMENT OR FUME TREATMENT

This involves dust filtration generally associated with physical-chemical treatment and/or molecular filtration (adsorption on activated carbon) in the form of pellets or powder injected into the process.

3 - AIR TREATMENT UNITS

Air treatment certainly requires a good device, but the filters chosen to accompany it are just as important. First of all, it is essential to know that the chemical nature of particles is not their only harmful factor. The finer the particles, the more easily they penetrate the respiratory tract and reach the pulmonary alveoli. The health risk is then high. Several types of filter exist.

These are several consecutive processing stages which may or may not be associated with:

They are used to equip several workstations. When there is not enough space in the workshop, this system can very well be found outside the building and treat the air via a network of ducts and pipes.

4 - INDUSTRIAL AIR PURIFIERS

These are mobile suction boxes generally used for indoor treatment of dust, fumes and odors present in the air of your work space. For these air purifiers, there are two types of filters. Saturation filters which, once full, must be replaced. Then the unclogging filters which, once saturated, will be cleaned automatically by compressed air or by a manual unclogging system (brush or shaking).

To measure the effectiveness of an air purifier, there is the concept of CADR (Clean Air Delivery Rate). To simplify, it is the flow rate of the device multiplied by the particle separation efficiency. For example, 10,000 m3/h (actual flow rate of the device x 85% separation rate of fine particles = CADR of 8500. The 3 pollutants on which this standard is based are those that are found the most, pollens , smoke and dust. The higher the CADR, the better the quality of the purifier.

Our industrial VOC and odor destroyers represent a range of devices specially dedicated to the treatment of pollutants in gaseous form such as volatile organic compounds (VOC), odors, fumes and different chemical compounds. Our devices are suitable for virtually all types of industries. Thanks to molecular filtration with activated carbon, the filtration and capture of pollutants is done by adsorption.

Industrial processes and products used in the workplace release gaseous pollutants commonly called VOCs. These pollutants are generally compounds derived from hydrocarbons, sulfur compound solvents, etc.

When possible, Volatile Organic Compounds (VOCs) must be vacuumed up, treated and then discharged outside.

In many cases, this is not possible and a mobile source capture or ambient treatment installation close to the workstation can significantly reduce the operator's exposure.

1 - HOW TO CHOOSE YOUR ODOR AND VOC DESTROYER SYSTEM?

It is imperative to choose your filtration system carefully because otherwise the device may be unsuitable, require too frequent replacement of consumables or even very quickly wear out and no longer function.

Here are the main pitfalls to avoid:

2 - MOLECULES AND ODORS THAT OUR VOC DESTRUCTORS AND OTHER INDUSTRIAL ODORS TREAT?

There are different categories of pollutants generating odors:

Odors present in the air of industrial and professional buildings are often temperature dependent. As a general rule, the higher the air temperature, the more intense the odors.

3 - IN WHICH INDUSTRIES ARE ODOROUS MOLECULES AND VOCS FOUND?

Steelworks and Foundry:
Bad odors of slag, VOCs and odors of phenolic resins, odors of cores, etc. It is easy to install an odor destroyer in core workshops, casting areas or even pilot cabins or cleaning rooms. supervision and control in steelworks. This solution for capturing VOCs and odors simply protects operators in the area.

Plastics processing

Bad odors from melted or burned plastic, molding and injection odors, VOCs, resin and fiberglass odors and vapors, styrene vapors, extrusion odors, odors released during the fusion of thermoplastic and thermosetting polymers.

Agrifoods industries

Bad cooking odors, cooking and drying odors, frying odors, grinding, mixing and seasoning odors, coffee odors, aromatic and coloring manufacturing odors, bad fish odors, smoking odors, bad odors of fermentation and yeast.

Painting and finishing workshops

Paint odors, varnish odors, VOCs and solvent odors, etc.

Printing workshops

Paint odors, VOCs and solvent odors, etc.

Art restoration and conservation workshops

VOCs and odors from paint, solvents, and permethrin.

Waste

Bad odors linked to waste storage, bad odors in dumpster repair workshops, sorting and recycling centers, composting, methanization.

Dry cleaning and pressing

Odors of Perchlorethylene, etc…

Machining

VOCs and solvent odors, cutting fluid odors, oil vapor odors, etc.
Wood :
VOCs and gluing odors, edgebanding glue odors, varnishing odors, etc.

Cosmetic

Intense odors of essential oils in production, formulation station, VOCs and odors of solvents, alcohols and additives, etc.

Hygienic products

Concentrated perfume odors, essential oil odors, etc.

Offices, open space, waiting room, canteens, hospitals

Bad odors linked to ventilation, bad tobacco odors, cooking odors, perspiration odors, etc.