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The design and implementation of a centralised unit which permits control of the complete multi-step process, so ensuring robust functioning of the process as a whole, is the job of the systems integrator (SI). The SI is responsible for linking the individual control systems, as well as the commissioning and start-up of the installed plant.
In October 2009, we received a list of what was thought to be the 20 largest MBRs in the world at that time. The peak daily flow capacities on that list ranged from 30 to 100 MLD, with the total capacity being just over 1,000 MLD. 16 of the top 20 installations were fitted with GE’s Zeeweed technology, though the largest – Origin Water’s Wenyu river plant in Beijing – was based on Asahi Kasei membranes.
Membrane bioreactors (MBRs) are growing both in size and number, reflecting a growing confidence in the technology. The number of MBR membrane module products is currently increasing by 3−5 a year, and the market itself is growing exponentially at a rate between 11.5 and 13%. Whereas in the past MBRs may have been disregarded in favour of conventional treatment plants, ...
