Railway bioreactor toilet cleaning system
BioUnit

Specially designed for cleaning on-board bioreactor wastewater treatment systems
Fully automated operation with various service programs
Integrated descaling options
Various configurations, mobile or stationary, can be realized according to customer requirements

Smart disposal of bioreactor toilets

A plus for the environment

The increasing demand for sustainable and environmentally friendly technologies has brought about numerous innovations in recent years. One notable development is the integration of bioreactors in train toilets. This technology not only offers an efficient way of treating waste, but also helps reduce environmental impact.

What are bioreactors?
Bioreactors are technical systems that use biological processes to break down organic waste. They usually contain microorganisms that break down organic material such as feces and urine and convert it into less harmful substances. These systems can use both aerobic (with oxygen) and anaerobic (without oxygen) conditions, depending on the type of microorganisms and the specific application.

How do bioreactors in train toilets work?
A bioreactor works like a small sewage treatment plant. The decomposition of the wastewater in the bioreactor takes place in 3 stages. In the first process, the solids are separated from the wastewater. This volume is then further reduced biologically. In the second process, the wastewater is treated and cleaned using microorganisms, as in a sewage treatment plant. In the last step, the remaining liquid is thermally and physically disinfected.

Bioreactors in train toilets represent a promising solution for sustainable waste treatment. By using biological processes, they help reduce environmental pollution and at the same time offer advantages in terms of resource efficiency and hygiene.

BioUnit SMA

Small but powerful

The advantage of the BioUnit SMA is its small size and can be connected to existing vacuum supply systems. This means that existing disposal systems for conventional wastewater tanks can also be used for the mechanical cleaning of bioreactors. It consists of a stainless steel housing and is mobile thanks to its 200 mm swivel and fixed castors. In addition to a 200 bar high-pressure pump, it also has flow and pressure sensors, quick coupling connections and a 7” color touch panel.

BioUnit MID

Small but powerful

The BioUnit MID is primarily intended for the mechanical cleaning of the bioreactors. It consists of a stainless steel housing and is mobile thanks to its 200 mm swivel and fixed castors. In addition to a 200 bar high- ressure pump, it also has flow and pressure sensors, quick coupling connections and a 7” color touch panel. It also has its own rotary lobe pump without frequency converter to generate an own vacuum wastewater disposal.

BioUnit BIG

All in one unit

The BioUnit BIG is designed for both mechanical and chemical cleaning of the bioreactors. The built-in tanks make it a compact system for all cleaning and maintenance tasks. In addition to a 200 bar high-pressure pump it has flow and pressure sensors, quick coupling connections and a 10” color touch panel. The in-house rotary lobe pump with frequency converter for generating its own vacuum wastewater disposal and a 2,000 l wastewater tank made of GRP for the intermediate storage of the wastewater complement the unit.

The stationary solution

Bioreactor toilet cleaning system BioUnit S

The BioUnit S is designed as stationary solution for medium to large railway treatment facilities and workshops. Designed as a multi point solution, the stationary BioUnit S has centralised facilitiesfor the treatment of wastewater as well as the necessary supply equipment for operating resources such as cleaning chemicals.

Applications

Train care maintenance depots
Medium to large scale rolling stock treatment facilities and workshops

Bioreactor toilet cleaning system BioUnit S

BioUnit SMA

Small but powerful

BioUnit MID

Small but powerful

BioUnit BIG

All in one unit

The stationary solution

Bioreactor toilet cleaning system BioUnit S

Applications

Train care maintenance depots
Medium to large scale rolling stock treatment facilities and workshops

Features of the BioUnit

Activated carbon filters are optionally available for the purpose of foul air odor control.

Our products with VX series rotary lobe pumps are constructed according to an ingenious design concept, called QuickService design. This concept makes maintenance and repair of the equipment particularly easy. Systems are available again in a very short time, with downtimes minimized

The BioUnit is equipped with technical devices for descaling of the bioreactor collecting tank.

Our products for the transport sector (rail, bus, and ship applications) are available as either stationary or mobile systems. In their stationary versions, BioUnit, PierPump, and RoadPump are permanently mounted at the designated installation location. Optional indoor and outdoor installation is possible. For the mobile versions, various carrier systems are used that permit use in any location.

Options of the BioUnit

Automation systems, such as preselection of filling volume and automatic switch-off on vacuum extraction stations, remote maintenance access, and automated operating data acquisition, allow economical use of resources and improvements in process efficiency.

To ensure safe operation outdoors even at freezing temperatures and to protect the technical equipment from frost, optional electric heating elements can be used.

The systems can be fitted with an optional data acquisition system: important operating parameters such as filling and rinsing cycles can be recorded, saved, and analyzed.