The environmentally friendly, sustainable separation of used cooling lubricant emulsions

An 'environmentally friendly' label must be earned.
All metalworking companies use cooling lubricants (water soluble cooling lubricants - wsCL). Normally, little attention is paid to what happens to used cooling lubricants. After all, there are disposal companies that are responsible for this. However, disposal costs range from €140 to €200 per m3 of wsCL.
Bioway has been working on this issue for many years, which has led to a new, better and more economical technology, and has applied for patents for new processes (separation, disinfection in storage tanks, cleaning of the water phase after separation).
Small quantities of used wsCL can be split, but a volume of 1000 m3 per year is economically viable. The reason for this is that the water phase should also be treated, as it is still heavily contaminated with additives.
One process that can be used here is DAF (dissolved air flotation) with electro-oxidation to achieve drinking water quality.
The proposed technology does not require centrifuges, coalescence separators, membrane filtration, vacuum distillation or other complex, energy-intensive technology. It operates at room temperature (energy-free) and separates each cooling lubricant by separating the two phases of oil and water, whereby the oil is quantitatively preserved for processing by specialised companies or the oil industry. No demulsifies or other chemicals are used!
The price for 100 litres of reagent is between €2.95 and €3.50. 200 litres are used per m3 of used wsCL. Almost 100% of the water in the reagent is recovered.
In addition to separation, Bioway offers proven methods for disinfecting wsCL in tank maintenance warehouses and cleaning the water phase after separation. A pH value of around 9.5 is not necessary and the addition of biocides can be omitted, because everything that is added to the water costs time and energy during cleaning.
Some cooling lubricant manufacturers have already taken this route and offer synthetic, oil-free cooling lubricants with a neutral pH value of 7. Unfortunately, however, toxic biocides are still being used, which is unnecessary, as electrolytic disinfection is environmentally friendly and more economical.
Extreme pH values in strongly alkaline or acidic solutions promote corrosion, as do high electrolyte concentrations - especially of certain anions such as chloride, among others. The contact time of metalworking of workpieces lasts on average only minutes, never hours or even days. In addition to contact time, pH value, type of electrolyte, and electrolyte concentration, only temperature is a limiting factor that determines corrosion.
It is time for change to an environmentally friendly technology, to save energy and ban biocides and recycle industrial used water to tape water quality.

Bioway Consulting SL
C./Tirant Lo Blanc 4 - office 19
ES-03750 Pedreguer / Allicante - Spain
Norbert Pautz - Managing Director
phone: 0034965030786; Mail: contact@biowayconsulting.com
https://www.biowayconsulting.com

Bioway has been in existence for almost 40 years and was founded as a sole proprietorship in Germany. A limited liability company was established in Switzerland with a subsidiary in Germany and later as a private limited on shares in Cyprus. Now since November 2024 Bioway Consulting SL is incorporated
Bioway deals with electrolysis-based wastewater treatment technologies, incorporating complementary technologies such as membrane filtration. Furthermore, a system for air purification / disinfection was developed to inactivate infectious biological particles such as viruses and bacteria.
Bioway works as a consultant mainly in D, A, CH - German-speaking countries, whereby new technologies are further developed and sold on the market in co-operation with system manufacturers.
The main task is to advise customers, solve problems, implement technology to solve tasks and sell systems / equipment for the purification of liquids (e.g. cooling lubricants) and industrial waste water. R & D take place in an own laboratory is Spain.

This release was published on openPR.