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Questions and answers - FAQ
Yes and no. If your municipality has a fourth treatment stage in its wastewater treatment plant, microplastics could also be filtered there, albeit with considerable energy input. However, these fourth stages are primarily designed to remove trace substances such as pharmaceuticals from wastewater. And what would one do with tons of sewage sand and activated carbon if they were also contaminated with microplastics? In Bavaria, there are around 2,400 wastewater treatment plants. Fewer than 10 had a fourth treatment stage in 2023. Even if some of the grinding particles are filtered out at the treatment plant, it still seems wise not to discharge this production waste in the first place.
The system works very well with TACUBOMATIC machines. It is supplied with a small switching device that docks to your machine's DC round connector. This device switches the 230V supply for the pump and, if you wish, also for your air filter. However, the existing Tacubo pump-air-filter unit can no longer be used.
If you are already using a nylon stocking as a pre-filter, that is better than nothing. It is capable of catching around 30% of the grinding waste produced. However, the majority of this waste is much smaller than the mesh of the nylon fabric. Consequently, it is not sufficient to rely solely on this type of filtration.
For KOSKINO, you can use normal tap water. However, if your water is very hard, this can slow down the flow rate through the filter fabric. If the water hardness at your site is above 15 °dH we recommend for the initial filling enthärtetes Wasser. Den Wert erfahren Sie bei Ihrem Wasserversorger.Alternatively, you can add to the tap water up to 10 liters of distilled water mixed in – in many cases this provides a suitable hardness level.For filling, you need a total of just under 40 liters of water.
Koskino is a closed system with no inflow from outside. The lower container is filled almost to the brim with approx. 40 liters of tap water. This water is pumped into the grinding chamber as often as required, filtered, and then pumped back up again. If more grinding water is produced than the upper filter container can hold, it has a doubly redundant overflow system. The grinding water then goes directly into the collection tank, bypassing the filter, and is cleaned during the next cycle.
At present, there is no practical material recycling solution for such a heterogeneous and potentially pollutant-laden mixture of substances. Any further recovery would carry the risk of transferring contained pollutants into other product cycles. This would make little sense from either an ecological or a legal perspective.For a regular optical business, the following applies:The dried residues are usually generated in quantities such that they can generally be disposed of with residual waste.For businesses with higher requirements regarding disposal security and traceability, KOSKINO also offers the option of collecting the filtered particles and having them professionally disposed of by a certified waste disposal company.
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