An all-round clean project in the forging industry

LK Metal references

An all-round clean project in the forging industry - LK's 2-stage ultrafiltration plant cleans heavily polluted wastewater

Short and compact

– Customer: International automotive supplier
– Sector: Forging industry / drive shaft production
– Project year: 2019
– LK Metall products used:

Tangential separator (3-phase separation), light liquid separator, sludge trap, ultrafiltration (2x), dosing station, double-walled disposal tank, remote monitoring

"Even after 5 years of operation, the decision to choose LK Metall was the right one. The system runs reliably, saves costs – and meets all specifications."

Project manager at the customer

The customer’s task

During the production of cardan shafts in the forging industry, large quantities of washing water contaminated with graphite and oil are produced – including from floor cleaning, machine sumps and used emulsions.

Previously, this wastewater was regularly collected by external disposal companies – with high running costs and increasing pressure from environmental authorities. The aim was to implement an economical solution that would meet the requirements of the authorities and enable independent on-site treatment.

The solution from LK Metall

Following extensive laboratory tests on the company’s own test stand, LK Metall developed a multi-stage solution for safe and efficient wastewater treatment.

The technical core components:

  • Pre-treatment with tangential separator, oil separator & sludge trap
  • Main treatment via two ultrafiltration modules (type LK-36-1200)
  • Dosing station for cleaning additives
  • Waste disposal system with double-walled container, automatic fill level notification via SMS & e-mail

The entire system is designed for use in a flooded area and was installed elevated and dowelled to the ground.

The result: up to 80 % water recovery – permanently efficient

The treatment capacity is 6.5 m³ per day, with over 80 % of the raw water being recycled – only less than 20 % concentrate needs to be disposed of.

This not only saves the customer significant disposal costs, but also benefits from a centralized solution that replaces all previous individual systems.

An all-round clean project in the forging industry - LK's 2-stage ultrafiltration plant cleans heavily polluted wastewater

Would you like to find out more about the products used?

LK Filtration Systems - Stainless Steel - Process Water Treatment

Filtration systems

Ultrafiltration with pretreatment

– Efficient oil-water separation with minimal effort
– Mobile and flexible for versatile locations
– Lower disposal costs thanks to longer use
– Environmentally friendly thanks to safe pollutant separation

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