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Water purification
Why purify?
Industrial water must be purified for several reasons, all aimed at ensuring safety, regulatory compliance, sustainability and efficiency in industrial processes. Here are some of the main reasons for carrying out the clarification process of industrial water or its purification:
Regulatory compliance
Many countries have strict regulations for industrial water treatment to protect the environment and public health. Failure to comply with these regulations can lead to legal sanctions and damage the company's reputation.
Pollution prevention
The treatment of industrial water with the clarification flocculation process aims to remove or reduce the presence of polluting colloids such as heavy metals, toxic chemicals, oils, greases and other contaminants that may be present in industrial processes with a purification yield greater than 85%. %. This helps prevent pollution of surrounding water resources.
Equipment protection
Water containing impurities can cause damage to industrial equipment, such as pipes, pumps and heat exchangers. The removal of impurities through the treatment of water with the products identified by the technical service helps to extend the useful life of the equipment and reduce maintenance costs.
Optimization of industrial processes
High-quality water is essential for many industrial processes. Water purification allows you to obtain the characteristics required for different applications, such as cooling, steam production, cleaning and other specific uses.
Water and energy saving
Treating water efficiently can help save water and energy resources. For example, recycling and treating water used in industrial processes can reduce the overall amount of water taken from the environment and the costs associated with its treatment.
Sustainability
Industrial water clarification practices are increasingly important with a view to reducing the overall environmental impact of industrial activities, resulting in greater sustainability and, above all, with optimized and economically advantageous treatments, greater convenience compared to disposal. It follows that an ever-increasing number of companies are choosing this industrial process.
Water recycling, the reduction of water consumption and the adoption of low environmental impact technologies are fundamental aspects for improving corporate sustainability.
The clarification process in water purification
How is water clarified?
Flocculation is the key process in water purification and is used as a primary and secondary treatment, to separate suspended particles and suspended solids from water. This process favors the aggregation of colloidal particles, forming larger agglomerates called flakes or flocs. These flocs can then be more easily separated from the water by sedimentation or flotation.
Flocculation is a crucial step in the water purification process, as it significantly contributes to the removal of suspended particles, pollutants and suspended solids, improving the quality of the treated water. Here is an overview of how flocculation works in the context of water purification:
Clariflocculation
In the primary clarification process, Iron or Aluminum salts are often added, these chemicals, called inorganic flocculants, help to neutralize the surface electrical charges of the suspended particles and allowing them to aggregate. The yield of the operation is approximately 90%.
In the secondary process, polyelectrolytes are added, these flocculants are generally organic polymers, and are added from a specific tank where they have previously been dissolved and homogenized. They favor the aggregation of coagulated particles into larger flocs.
The flocculation process requires adequate agitation of the water to ensure uniform distribution of the flocculants and promote the formation of appropriately sized flocs. This then leads to the clarification of the water and the formation of sludge.
Sedimentation or flotation
Once the flocs are formed, the treated water passes through a sedimentation or flotation device. The large and heavy flocs tend to settle on the bottom, the light and aerated ones tend to rise to the surface. Depending on the process used (sedimentation or flotation) the technical service will choose the best products to obtain the correct result. This allows the aggregated solids to be physically separated from the water.
Sedimentation or flotation
Once the flocs are formed, the clarified water is left to stand or passes through a settling device. The large and heavy flocs tend to settle on the bottom, the light and aerated ones tend to rise to the surface. Depending on the process used (sedimentation or flotation) the technical service will choose the best products to obtain the correct result. This allows the aggregated solids to be physically separated from the water.
Biological clarification and purification
After the process described, the clarified water is separated from the solid part, the clarification process generates sludge which must be removed from the bottom, in the case of sedimentation, or from the surface, in the case of flotation. This water can then proceed through further treatment phases, such as filtration, to remove any residual particles or more generally to the biological phase in which bacteria are inoculated to break down any organic residues from the water and sludge.
FIPROKIM SRL products for flocculation in water purification
Water treatment, the WATERFIP line
FIPROKIM SRL is active in the water treatment sector and has developed the series of products in the WATERFIP line, formulated for the clarification and purification of industrial water, both waste and process. The line is divided into two groups, coagulants and flocculants, to be used in chemical-physical or dynamic purification systems and for the treatment and clarification of water in painting booths.
These are the main products of the line:
WATERFIP 203
Liquid coagulant to be added to water film painting booths. Flocculant-floating agent for water treatment. Ideal for water-soluble paints.
WATERFIP 204
Acid flocculant coagulant for the treatment of paints in water-based spray booths, ideal for water-soluble paints. Chloride free.
WATERFIP 220
Single product that does not require secondaries, it is a mixed charge flocculant with bentonites and activated carbon, ideal for tumbling water, degreasing, paint booth water, general wastewater.
WATERFIP 820
Flocculant coagulant with bentonites ideal for the treatment of oils, colours, greases, water-soluble and solvent-based paints.
WATERFIP 825
Flocculant coagulant with bentonite and activated carbon, ideal for the treatment of oils, colours, greases, water-soluble and solvent-based paints.
WATERFIP 877
Flocculant coagulant with bentonites ideal for the treatment of painting water, both in the case of water-soluble and solvent-based paints.
WATERFIP 879
Polymeric saline acid flocculant for the treatment of paints in water-based painting booths, ideal for water-soluble paints, chloride-free.
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