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Technologies for Industry and Municipal Sector
Disinfection, water filtration and deodorization

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We are committed to the dissemination of systems and clean technologies that provide added value, more competitive investment costs and simplification of our clients' facilities, and all this without putting greater pressure on the environment.

The implementation of consolidated technologies such as UV, Ozone, UF and other more innovative ones such as Advanced Oxidation Processes, compact Primary filtration and high-performance deodorization systems using UV+catalysts allow us to offer more efficient solutions: lower consumption energy and lower OpEx.

UV - Ultraviolet

ultraviolet (UV) light provides rapid and efficient inactivation of microorganisms through a physical process. When bacteria, viruses and protozoa are exposed to the germicidal wavelengths of UV light, they become unable to reproduce and infect.

The UV energy used for water treatment is classified into two primary levels according to its wavelength: 254nm and 185nm. For applications of Disinfection uses the wavelength of 254 nm. A single wavelength is used for TOC reduction and chlorine destruction applications.

Light is electromagnetic radiation or radiant energy traveling in the form of waves. UV light is invisible to the human eye, it lies between visible light and X-rays. in the electromagnetic spectrum.

UV light penetrates the external cell wall of microorganisms, passes through the cell body, reaches nucleic acids (DNA and RNA) altering their genetic material in a process called thymine dimerization. The microorganism becomes "inactivated" and loses the ability to reproduce or infect.

UV disinfection is a clean, non-chemical process and therefore does not produce any waste.

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ozone is a triatomic form of oxygen and is commonly represented by O3 . Ozone is a unstable gas with a very short half-life, which means that it reacts and disappears very quickly, therefore, it must be generated and dissolved in the water «in situ».

Ozone is essentially made up of oxygen. When an oxygen molecule (O2) is exposed to a high electrical voltage, the oxygen molecule (O2) splits into two oxygen atoms (O1). The oxygen atom (O1) combines with the oxygen molecules (O2) ozone (O3) is formed. When ozone reacts with other substances, the simple oxygen atom (O1) separates from the ozone molecule (O3), which is converted back into an oxygen molecule.

In the atmosphere, ozone is generated when ultraviolet light splits oxygen molecules into individual oxygen atoms (radicals). When ozone is generated Industrially, it is produced with cold plasma (also called dielectric barrier discharge method) or corona discharge.

Cold plasma (dielectric barrier discharge) is defined as a gas that is partially ionized and is generated at room temperature or below. The ionization of the gas, e.g. pure oxygen, takes place between two electrodes that are separated by an insulating barrier (dielectric barrier). When the plasma, oxygen molecules split into individual oxygen atoms which then recombine with unreacted O2 and form ozone (O3).

The difference between the ozone generators on the market lies in the arrangement and design of the high-voltage electrodes. Thetemperature of gasis an important factor when it comes to the effectiveness of ozone generation. The gas temperature is usually controlled by cooling water and the colder the water, the better ozone synthesis will work. Ozone reactors can only be built with a few materials due to high reactivity of ozone. Materials such as stainless steel, aluminum, glass, polytetrafluoroethylene or polyvinylidene fluoride can be used. Viton can also be used, but only for a limited time and with the restriction of constant mechanical forces and absence of humidity.

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AOP – Advanced Oxidation Processes

Advanced Oxidation Processes are those processes that involve the formation of hydroxyl radicals (OH-)oxidation potential (E = 2.8 V) much higher than that of other traditional oxidants (ozone, 2.07 V; hydrogen peroxide, 1.78 V; chlorine dioxide, 1.57 V, and chlorine, 1.36 V)

These processes are suitable for destroying chemical environmental contaminants such as pesticides, industrial solvents and traces of drugs, among others.

Chemical contaminants can be treated with UV (either as a single treatment or in combination with an oxidant). We have solutions designed to treat chemical contaminants, either by UV photolysis or by UV oxidation.

The drinking water sources we rely on every day are increasingly exposed to chemical contamination. It has been shown that many of these Contaminants are harmful or carcinogenic and must be treated and removed so that the water can be considered suitable for consumption.

These pollutants can come directly from human sources such as industrial manufacturing, agricultural runoff, and wastewater discharge, or they can originate from natural sources, such as chemicals that cause taste and odor in water generated by the proliferation of algae and bacteria.

Our experience is through UV oxidation, that is, producing a photochemical reaction by combining hydrogen peroxide with UV light to generate strongly oxidizing hydroxyl radicals that oxidize the contaminant, breaking the existing chemical bonds between the molecules and reducing the potentially dangerous chemical product to its elemental and safe components.

UV light, as part of a multi-barrier system, acts to simultaneously inactivate pathogens and destroy contaminants. This is achieved without the formation of potentially dangerous disinfection byproducts, including THMs (formed when using chlorine) or bromate (formed through the use of ozone).

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Complete water and wastewater treatment solutions and services using cutting-edge membrane technologies to municipal and industrial clients. Combined decades of experience and thousands of installations, Pall Water is known worldwide as a provider of high-quality systems designed to tackle the most complex water treatment challenges, simply and reliably. Our solutions can help you protect what matters most.

Wide range of water filtration solutions to meet all your needs. Whether you need pretreatment, ultrafiltration (UF), microfiltration (MF), a reverse osmosis (RO) or a mobile container system.

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Primary Filtration

Three processes in a compact unit of Solids Separation, Thickening and Dewatering of Sludge with yields >50% TSS, >20% of BODand producing drier sludge (20 to 30% DM dry matter). A primary filter Salsnes Filter can completely replace conventional primary treatment and does so in a fraction of the surface footprint, at a cost of 30 to 60% lower investment and significantly lower total life cycle costs compared to conventional primary treatment. Furthermore, the costs of Handling, transportation and disposal of sludge are drastically reduced.

The rotating filter screen reduces the TSS and BOD of the effluent and produces drier sludge. It is the only filter design that can replace primary treatment conventional and comply with EU regulations on primary treatment.

Currently, these systems are installed around the world in a variety of municipal applications in WWTPs and in waste separation and recovery. difficult industrial solids.

The Salsnes filter system defines eco-efficiency: cost-effective, compact, high-performance, chemical-free and sustainable.

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High Performance Deodorization

deodorization by photoionization is the result of combining UV radiation, to different wavelengths, with different types of catalysts for the generation of strongly oxidizing radicals. Requires no chemicals, sensors or dosing systems.

Unlike chemical deodorization, which focuses on the reduction of certain chemical substances, photoionization always reduces the total odor, guaranteeing the concentration of odors at the exit.

It is an ON–OFF switch technology. Easy to handle, robust and very reliable. Furthermore, the demand for maintenance of Photoionization is considerably low. The technology does not require frequent attention from plant personnel.

More than 400 units installed around the world.

Neutralox technology is based on physical-chemical treatment methods. These treatment methods are characterized by the physical generation of oxidants, which They are used directly or with the help of catalysts for the oxidation of odorous compounds and other pollutants.

The equipment is made of high quality stainless steel, of modular construction and is delivered as compact pre-assembled units. The space required is small and the energy demand is considerably low.

Typical applications are:
- Wastewater pumping stations, lifting stations, vacuum stations
- Screening buildings, entrance channels
- Clarifiers, grit removers
- Sludge retention tanks, thickeners - Sludge dryers, ATAD
- Dehydration buildings

They are also applied in industries that, due to processing requirements, cause odor problems in the environment or neighborhood. Some examples are the chemical industry, food industry, etc.

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