Cost-optimised wastewater treatment in the optical industry
ZEISS Sport Optics considerably reduces disposal costs at its Wetzlar site by using a compact Lugan® 20,000 flotation plant from EnviroChemie.
High quality lenses and prisms are just some of the products manufactured at the Zeiss Sport Optics plant located in Wetzlar. Polishing, grinding and rinsing wastewater, containing heavy metals and contaminated with suspended matter, is produced during optical glass processing at the site.
This is treated in a physico-chemical partial current process using a Lugan® flotation plant in order to achieve the required limit values. It is then discharged into the sewerage system.
The grinding water that is produced during manufacturing at ZEISS Sport Optics contains heavy metals and is contaminated with suspended matter. The company commissioned EnviroChemie to find the appropriate plant solution in order to generate cost savings and comply with limit values.
Our industry experts chose a Lugan® 20,000 flotation plant with a capacity of 8 – 10 m³/h for the wastewater treatment purposes. The flocculation and flotation plant treats 60 m³ of grinding wastewater, containing heavy metals and contaminated with suspended matter, per day in three shifts, so that it can be discharged into the sewerage system.
A free-standing 40 m³ mixing and equalisation tank upstream of the Lugan® plant replaces the pre-separator and retention tank, which was installed in the floor and needed to be cleaned periodically to remove settleable materials .
Our scope of services: consultancy, assistance with planning and approval processes, supply of the plant, installation, commissioning, service and testing
The process used led to a significant reduction in disposal costs, because the dewatered sludge which is produced at the chamber filter press is the only substance that has to be disposed of. Cleaning of tanks installed in the floor is no longer required.
The required discharge values are reliably adhered to.
In the meat industry, for example, wastewater with a high organic load is produced during the cleaning of production plants.Read more
A large dairy uses a tailor-made plant solution from EnviroChemie to recycle its liquid waste and efficiently reduce energy consumption and operating costs.Read more
A multi-national dairy co-operative wanted to treat its vapour condensate sustainably at a German site and thus reduce its fresh water requirements and operating costs.Read more
The Norrmejerier dairies generate energy, conserve resources and reduce operating costs using a Biomar® anaerobic wastewater treatment system.Read more
Dairies use water for many different stages in the production process. There are often potential savings to be made here in terms of resources and energy. To achieve this, however, an integral view is required, since the cycles used in dairies, which have often grown over the years, are highly…Read more
With all-year-round reliability, the resource-efficient Biomar® aerobic technology reduces costsRead more
A global corporation recycles 90% of the wastewater at its Brazilian cosmetics production site and reuses it in its production processes.Read more
ZEISS Sport Optics considerably reduces disposal costs at its Wetzlar site by using a compact Lugan® 20,000 flotation plant from EnviroChemie.Read more
At its Mettlach site, Villeroy & Boch is able to treat and recycle glazes recovered from its rinsing water using an Envopur® microfiltration plant from EnviroChemie.Read more
EnviroChemie provided the plant technology for mine water treatment, including water recycling, for a coal mine operated by SUEK, one of Russia’s largest coal producers.Read more
Energy-efficient and sustainable wastewater treatment and water recycling for laundry CWS-boco at its Solingen site, GermanyRead more
Galvamé opts for water recyclingRead more
General contact+49 6154 6998 100