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Our "Immorbilized Microorganism Treatment Systems" represent remarkable advancement in nitrogen removal processing. Nitrifying pellets containing microorganisms, are added to the nitrification tank to accelerate nitrification. The phosphorus removal process combines biological removal with physico chemical removal achieved by adding a flocculant. These treatment systems are highly efficient and compact by nature, resulting in lower establishment and running costs.
Features
Space-saving Design
Simultaneous BOD/nitrogen removal in 6 to 8 hours
The general sludge recycling method for simultaneous BOD/nitrogen removal has a retention time of 12 to 16 hours. The aeration tank's capacity must be increased when it is applied to the standard activated sludge treatment facilities for BOD removal (whose retention time is 6 to 8 hours). The Immorbilized Microorganism Treatment System's retention time is 6 to 8 hours (based on our tests) for simultaneous BOD/nitrogen removal. This means that modifications need to be made without increasing the aeration tank's capacity.
High Efficiency
Removes nitrogen efficiently even at low water temperatures, because the Immorbilized Microorganism treatment System's nitrifiers are sustained within nitrifying pellets, improving efficiency and reliability
Efficient nitrogen removal with chemical addition
In some instances, a chemical addition is used to remove phosphorus in waste water. However, in systems employing general recycling methods, nitrification efficiency is greatly reduced if aeration tank capacity is not increased. To overcome this, We employs technologies which immorbilize and sustain nitrifying microorganisms in nitrifying pellets to maintain high efficiency.
Overview
Immobilized Microorganisms
Immorbilization is the process of entrapping useful microorganisms in a polymeric material like polyethylene glycol resin and then shaping it into bead-like pellets. This creates a suitable habitat for the microorganisms, which are sensitive to the natural environment. As a result, they can be sustained in a high concentration in the bioreactor and display their effectiveness.
Nitrifying Pellets
Nitrifiers have a slow growth rate and are relatively difficult to maintain in a high concentration in suspended sludge. Therefore, nitrifiers are immorbilized in pellets, measuring about 3 mm in length on each side. Adding nitrifying pellets to the reactor makes it possible to maintain a high concentration of nitrifiers, which remove ammonia nitrogen quickly and efficiently.
Treatment Facilities
Osaka Hokuto Ace Center
Treatment Capacity480 m3/d
In sludge melting furnace facilities, concentrated ammonia nitrogen is inevitably discharged while exhaust gases drain within the scrubber. These treatment facilities are designed to remove ammonia nitrogen efficiently by nitrification.
Munakata Final Treatment Plant
Treatment Capacity 11,300m3/d
The standard activated sludge treatment facilities pictured above were modified to efficiently remove nitrogen and phosphorus found in waste water which works towards protecting the environment and water quality of rivers used extensively for fishing.