When we think of wastewater filtration in the manufacturing industry, we probably focus on things like used coolant fluid, or the dirty water left over after washing mineral ores. However, the food industry produces masses of wastewater as well, and it comes from unexpected places. For example, in the canning industry, the labels release ink and dyes when they are given their final rinse.
Similarly, manufacturing, stamping and printing the cardboard boxes that are used to pack food products releases toxins into the wastewater. After all the processing is done, this water either has to be re-used or released into the sewerage system. Some of these toxins can be harmful even within the sewers, and sewer system chemicals are incapable of diluting or neutralising these industrial poisons.
Environmental protection guaranteed
For this reason, the EPA (Environmental Protection Agency) has set industry standards for the level of cleanliness this wastewater must achieve before it’s released into the sewers. Interfil’s filtration systems have been certified for meeting these standards, and are used across a wide range of food, beverage, and packaging operations.
Of course, not all the contaminants in these fluids are liquid. There’s often solid sludge and residue as well. Our locally designed, patented and manufactured centrifugal filters separate the liquid from the solids, drying the latter into a cake that can safely be disposed of in a landfill. Our sludge dewatering vacumatic machinery draws out the maximum fluid possible so that dry waste disposal is lighter, cheaper, safer, and more effective.
Interfil’s sludge dewatering system
We developed this dewatering system over 25 years ago, and it’s a popular model because it needs very little maintenance or human operation once it’s switched on. It has a vacuum generator that creates a high force, and this level of power allows it to process larger amounts of wastewater and produce far dryer cakes.
Why is the dryness of the cake so important? Because solid waste that is produced after wastewater filtration requires an extra disposal step. The water can be re-used or simply poured down the drain after treatment, but the solid waste has to be burned in an incinerator, transported in a truck, or dumped into a landfill.
Economical waste disposal
If the cake still has moisture, it won’t burn effectively because it will need more fuel to evaporate the fluid, and said fluid might cause emissions and nasty smells. If it has to be transported, the liquid makes it heavier, and it occupies more space in the garbage truck, which increases transportation costs.
At the landfill, moist garbage can breed germs and cause diseases, and it smells far worse when it rots. A sludge dewatering system like ours that extracts maximal liquid will, therefore, save space, time, and money, as well as improving garbage conditions at the landfill. The system is economical and automated.
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