Biological wastewater treatment

Optimal adjustment of biological processes in wastewater treatment

Reliably setting the right parameters for every type of biology

In biological wastewater treatment, bacteria require a well-balanced nutrient system of carbon, nitrogen, phosphorus and special trace elements. Industrial wastewater in particular often exhibits nutrient deficits, which can lead to a drop in performance or even the death of the biomass. With anaerobic systems, too, biogas production may fail.

Sludge flotation is a serious problem in many activated sludge plants. Floating sludge, or bulking sludge, is caused by an increase in filamentous organisms in the biomass and requires the use of special treatment chemicals. We offer various powder or liquid products that prevent sludge flotation.

We treat the excess sludge produced in biological systems so that an optimum dewatering result is achieved, and disposal costs are minimised.

A selection of tasks for which we offer solutions:

  • Choosing the right nutrients
  • Defoaming wastewater
  • Preventing floating sludge formation
  • Optimising sludge treatment (reducing disposal costs)
  • Optimising operating costs

Reference projects

Moroccan dairy cuts carbon footprint with liquid waste recycling

A large dairy uses a tailor-made plant solution from EnviroChemie to recycle its liquid waste and efficiently reduce energy consumption and operating costs.

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Treating vapour condensate – reducing water footprint

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.

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Energy from wastewater

The Norrmejerier dairies generate energy, conserve resources and reduce operating costs with a Biomar® anaerobic wastewater treatment system.

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The hidden potential in dairies

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…

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Saving water: full water recycling for a cosmetics manufacturer

A global corporation recycles 90% of the wastewater at its Brazilian cosmetics production site and reuses it in production.

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Cost-optimised wastewater treatment in the optical industry

ZEISS Sport Optics considerably reduces disposal costs at Wetzlar site with a compact Lugan® 20,000 flotation plant from EnviroChemie.

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Recycling glazes from rinsing concentrates for Villeroy & Boch

At their Mettlach site, Villeroy & Boch can treat and recycle glazes from their rinsing water with an Envopur® microfiltration plant from EnviroChemie.

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Mine water treatment for SUEK coal mine

EnviroChemie provided the plant technology for mine water treatment with water recycling for a coal mine for SUEK, one of Russia’s largest coal producers.

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Treating and recycling wastewater pays off for CWS-boco

Energy-efficient and sustainable wastewater treatment and water recycling for laundry CWS-boco at its Solingen site, Germany

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General contact

+49 6154 6998 100