SALVINIA — MBBR Reactors

Scalable and compact MBBR systems from DAS Environmental Experts for biological industrial wastewater treatment: efficient, space-saving, robust.

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SALVINIA in Four Standard Sizes

Compact. Cost-efficient. Biologically strong. The SALVINIA Series

As specialists in the biological treatment of industrial wastewater, we have developed a unique compact system design called SALVINIA. With SALVINIA 70, SALVINIA 170, SALVINIA 470 and SALVINIA 1060, we offer MBBRs (Moving Bed Biofilm Reactor) in four standard sizes. For our customers in the pharmaceutical, food, beverage, dairy, chemical and paper industries, among others, we combine effectiveness and compactness with time and cost benefits in this product group.

A dense carpet of green leaves from SALVINIAN floating fern covers the water surface in natural light.

Biological Treatment More Stable Than Ever – The MBBR Process in Our SALVINIA Plants

The MBBR process used in SALVINIAs is primarily used for the degradation of organic wastewater constituents as well as ammonium and nitrate pollution. The residual products are carbon dioxide, water, nitrogen, and small amounts of biomass.

Our SALVINIAs can be used, for example, as a low-load stage in a single-stage treatment plant with indirect discharge. They are also suitable as the first part of a two-stage plant with direct discharge.

Incidentally, the term SALVINIA comes from botany and refers to the genus of floating ferns. Like our wastewater treatment plants, this type of aquatic plant has a particularly cleansing effect. This is because they remove excess nutrients from the water and even have an oil-absorbing effect.

Why SALVINIA Makes the Difference

Standardisation brings numerous advantages, especially in the production industry and in mechanical engineering. We would like to offer these advantages with our product group SALVINIA into the area of wastewater treatment.

With SALVINIA you benefit from

low reactor volumes due to highly efficient carrier material
a strongly shortened engineering process and thus optimized costs & low time expenditure
reduced residual material
fast & uncomplicated performance optimisation, for example in case of production increases (without any construction measures)
robust and stable treatment process, even under difficult conditions
fast recovery after downtimes
space-saving container design
simple cost reductions possible by using existing buildings

Zwei Personen betrachten gemeinsam Baupläne und Architekturzeichnungen vor einem modernen, blau gestreiften Hintergrund.

SALVINIA at a Glance

Product overview

Functional Principle of Wastewater Treatment with the MBBR Process

The MBBR process is a technology for biological wastewater treatment. In this process, microorganisms are cultivated as a biofilm on a carrier material. These microorganisms are responsible for the degradation of both organic wastewater constituents and nitrogen compounds. As with other biological processes, excess sludge is also produced during wastewater treatment with MBBR bioreactors. However, the quantity is significantly lower than in conventional activated sludge processes with a similar capacity. It is therefore not necessary to return activated sludge.

Due to the microorganisms living in biofilms, the MBBR treatment process is also very robust and much more stable than other biological treatment technologies. MBBRs function well even under difficult conditions and recover very quickly after downtimes. This makes them a very resilient solution for industrial wastewater treatment. Whether new construction, expansion, optimization or service & maintenance of an existing wastewater treatment plant. We — the DAS Environmental Experts — take over all tasks as a full service provider.

Purple light illuminates numerous round carrier materials used in biological wastewater treatment with SALVINIA, while air bubbles rise in the liquid.

Performance Indicator Carrier Material

The selection of the right carrier material has a significant influence on the performance of an MBBR. This is because in this process, the microorganisms are cultivated as a biofilm on the carrier material. The more established the bacterial cultures colonise the carrier material, the more efficient and stable the pollutant degradation becomes. It is therefore important to provide an effective surface for colonisation and to ensure optimum contact with the wastewater. We use a chip-shaped carrier material for our SALVINIAS. In contrast to the so-called "wheels", the degradation performance is significantly higher and more constant. The microplastics produced by abrasion of the carrier material are also almost completely avoided, thus reducing the environmental impact.

System	Customized	70 m³	170 m³	470 m³	1.060 m³	Customized
Degradable COD Load	< 100 kg/d	100 – 500 kg/d	250 – 1.000 kg/d	1.000 – 3.000 kg/d	2.000 – 6.500 kg/d	> 6.500 kg/d
Volume Flow	< 200 m³/d	200 – 750 m³/d	750 – 2.000 m³/d	1.500 – 5.000 m³/d	3.000 – 13.000 m³/d	> 13.000 m³/d
Reactor Size (D/H)	Customized	3,3 / 9,0 m	5,1 / 9,2 m	8,5 / 9,2 m	12,8 / 9,2 m	Customized