Wastewater treatment in metalworking and processing
In metalworking, numerous processes such as machining, forming or parts cleaning produce large quantities of oily and salty wastewater. Chemical-physical treatment processes are limited in their effectiveness, resulting in high disposal and fresh water costs. Our MVR treatment systems turn wastewater into a resource: they recover up to 99 % pure water, which can be fed directly back into your processes.
With these processes
our customers take a close look:
- Machining, e.g. drilling, milling, turning
- Die casting incl. post-processing, e.g. deburring, cleaning
- Electroplating processes, e.g. galvanizing, chrome plating
- Active baths and passivation for chemical surface treatment
- Forming, e.g. deep drawing, punching, pressing
- Degreasing (chemical or aqueous) before or after processing
- Heat treatment, e.g. hardening, annealing with subsequent cleaning
- Surface treatment, e.g. blasting, polishing, grinding
- Crack testing and cleaning after assembly or production
This results in these typical waste water streams:
- Emulsions with cooling lubricants
- Waste water containing release agents from die casting
- Rinsing and active baths from surface treatment
- Washing water with oil and surfactant residues
- Electroplating, hardening and grinding water
- Rinsing water from crack detection systems
This is how we plan a treatment system to recycle your wastewater:
To treat complex wastewater streams so that they can be reused, we at KMU LOFT Cleanwater work according to our own solution principle.
Starting point: Your wastewater
First, we analyze the composition of your wastewater streams. To do this, we draw on your information and our extensive experience from the systems we have implemented. Depending on the complexity and requirements, we take samples and analyze them in our in-house laboratory. If no wastewater is available yet, we draw on our database with thousands of analyzed waters depending on the production processes and industries.
Definition of process chains
We then define the process chain from the inflow of dirty water to the finished distillate and concentrate. Most KMU LOFT Cleanwater systems have several stages of pre- and post-treatment in addition to storage in tanks. The aim is an efficient and safe process. The distillate should be able to be reused or discharged. The concentrate should contain as little residual water as possible and be easy to recycle.
Implementation in plants and systems
Once the process chain has been established, implementation begins by selecting the right vacuum evaporator and the best systems for pre- and post-processing as well as intermediate storage. The result is an individual offer based on standardized system elements.
KMU LOFT Cleanwater complete solution with vacuum evaporator
Water back into the process: close the cycle in your production
With the vacuum evaporator technology from KMU LOFT Cleanwater, you can return your wastewater streams to a closed cycle. The purified distillate is of such high quality that it can easily be reused in numerous manufacturing and cleaning processes. For you, this means less disposal work, lower costs for fresh water and energy and a future-proof solution to meet stricter environmental requirements in the long term. Our energy-efficient systems only require an average of 25-80 kWh per cubic meter of wastewater fed in and can be integrated into your existing infrastructure to save space.
Further advantages at a glance:
Maximum water recovery
Recovery of up to 99% of the wastewater introduced, reusable in production.
Cost-effective disposal
The amount of waste is reduced many times over compared to other wastewater treatment processes.
Low energy costs
Reduction of energy and operating costs through efficient heat utilization and a high degree of automation.
Consistent distillate quality
Consistent distillate quality even with fluctuating wastewater composition.
High system availability
Only about 15-30 minutes of operation and maintenance per day, with the option of remote maintenance and optimization.
Occupational safety
Reliable wastewater treatment and occupational safety regardless of the chemical knowledge of the plant operators.
Our answer to (almost) any waste water: the vacuum evaporator
They work almost by themselves, require little space and recover pure distillate even from heavily contaminated wastewater. Our vacuum evaporators with natural or forced circulation have been reliably and safely processing all types of wastewater for decades. MVR evaporation has been proven to be the "best available technology" for numerous industrial applications.
PRACTICE REPORT
Wastewater management in copper wire production
The use of drawing emulsions in copper wire production generates considerable quantities of contaminated wastewater. We show how modern MVR evaporator technology efficiently treats this wastewater, recovers up to 98 % of the water and thus reduces disposal costs and offers ecological benefits.
Find out how companies in wire and cable production can make their processes more sustainable and economical by using this technology.
Service for a long system life
Our vacuum evaporators run reliably and trouble-free for years. Many customers only get in touch when something needs to be replaced. However, it pays to look earlier: A regular check of the system parameters in conjunction with the current wastewater flows helps to significantly extend the service life of your system. We can also detect numerous faults and make adjustments via remote maintenance without restricting system availability.
