Wastewater Management
The next generation of bioreactors will offer improved performance for wastewater treatment. Eugene McCarthy reports.
Die nächste Generation von Bioreaktoren liefert eine bessere Leistung bei der Aufbereitung von Abwasser. Eugene McCarthy berichtet.
La nouvelle génération de bioréacteurs offre de meilleures performances en matière de traitement des eaux usées. Selon Eugene McCarthy.
Advanced bioreactors target operating costs
W
hile bioreactor treatment of wastewater is already a cost-effective solution for many process companies, the drive is now on to
improve the technology, particularly in terms of process efficiency. The latest development came in March
when Envirogen Technologies and Inotec announced that they had entered into a joint technology development agreement to advance the performance of bioreactors in groundwater, mining water and a broad range of wastewater treatment applications. The initial focus of the development
activity will be on reducing the amount of substrate (electron donor) required to successfully operate anoxic bioreactors as well as on minimising the amount of solids
generated during operation. Bioreactor treatment operating costs
are among the lowest of any type of water treatment technology on the market today – with electron donor and solids handling representing a significant portion of long-term project costs. Initial targets for technology development will be removal of metals and inorganics such as perchlorate, nitrate, sulphate, selenium, arsenic and mercury. According to Dave Enegess, senior vice
president for Envirogen, the potential synergies for Envirogen’s fluidised bed reactor (FBR) and Inotec’s electro-biochemical reactor (EBR) technologies can be a boon for companies in need of high-performance, lower cost water treatment. “We’re excited at the opportunity to work with Inotec to advance the state-of- the-art of bioreactor technology. Jack Adams
Fig. 1. Siemens’ MemPulse membrane bioreactor (MBR) uses a mechanical device that supplies irregular pulses of air to the MBR module. This decreases operation and maintenance costs, reduces energy consumption, and increases scouring effectiveness.
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