Mitsubishi Heavy Industries Mechatronics Systems, LTD. Business Headquarters Environmental Plant Business Department Water Treatment Business Section
Currently, there are many wastewater treatment facilities both in Japan and abroad. More
than half of them employ a method called the "activated sludge process" in which biochemical
treatment is conducted using microorganisms (hereafter referred to as an activated sludge facility).
Mitsubishi Heavy Industries Mechatronics Systems, Ltd. (MHI-MS) has developed a
"two-phase activated sludge system (hereafter referred to as the two-phase system)" which can be
installed by conducting simple modifications of the activated sludge facilities in operation. With
this system, as much as an 80% reduction in excess sludge production can be achieved, while the
processing capacity can be as much as doubled. Deliveries of this system to major food factories,
chemical plants, etc., are increasing steadily (Figure 1). Our product is highly valued because we
have received comments from our clients, including "The running costs were substantially cut
down," "It is helpful to fulfill corporate social responsibility (CSR)" and "The processing capacity
remained the same even under increased unsteady loading conditions."
