For the renovation and emergency restoration of wastewater treatment! The temporary pre-treatment device "Habuki" reduces BOD by 70%. It achieves significant space-saving and cost reduction.
This catalog provides information on the temporary wastewater treatment system "Habuki," which is effective during renovation work, maintenance, and disaster recovery at wastewater treatment plants. By utilizing Toshiba's special rotating body for biological membrane treatment, it reduces BOD by 70% and total nitrogen by over 25% in a short time. It introduces a groundbreaking solution that significantly reduces the load on subsequent temporary aeration tanks and MBRs, achieving a space-saving (approximately 50% reduction) and energy-saving (about 33% reduction in electricity) for the entire plant. In particular, it explains the mechanism that enables overwhelming cost reduction and stable operation compared to disposal by vacuum trucks, using comparison tables. It also details an emergency recovery case from the flooding incident at the Genkai Town wastewater treatment plant that occurred in January 2025, where biological treatment was restarted in just three weeks, resuming processing at a municipal scale (1,000 m³/day). The total support system provided by Seisui Industry, which includes planning, installation, and operational guidance, is also mentioned.
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basic information
"Habuki" is a pre-treatment device that retains microorganisms densely on a three-dimensional mesh-like rotating body to efficiently purify wastewater. 【Main Features】 1. High Processing Capacity: Removes over 70% of the BOD from incoming wastewater. It reduces the burden on subsequent processes and contributes to preventing clogging of MBR membranes and reducing excess sludge by 10-20%. 2. Space and Energy Saving: Compared to traditional large-scale temporary aeration tanks, it can reduce the required area by about half. Aeration power can also be reduced, keeping total electricity costs down. 3. Rapid Startup: It has a track record of completing the startup of biological treatment, which typically takes 2 months, in as little as 3 weeks. 【Utilization Benefits】 It is optimal as an alternative treatment during the renovation or lifespan extension of OD tanks. It avoids the unrealistic costs (labor, fuel, disposal) of transporting large amounts of wastewater by vacuum trucks and allows for the establishment of a "temporary plant" on-site at a practical scale. With dimensions of L3.4m × W2.4m, it can be installed even in narrow treatment facilities.
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Applications/Examples of results
This catalog features a case study on the emergency recovery from the "Gunkai Town Sewage Treatment Plant Flooding Incident" that occurred in January 2025. - **Challenge**: Due to equipment failure, the underground level was flooded, completely halting processing functions. Even with a 24-hour vacuum truck operation, it was insufficient, leading to increased costs and compliance issues due to the inability to discharge into the ocean. - **Implementation and Effect**: Seisui Industries temporarily addressed the situation with a 500㎥ storage tank while proposing and installing a temporary plant (Habuki + temporary aeration tank + MBR + existing UV) on the limited site. - **Rapid Recovery**: The startup of biological treatment, which usually takes two months, was completed in just three weeks. - **Processing Capacity**: Achieved stable operation with a processing capacity of 47㎥ per hour and a daily total of 1,000㎥, effectively substituting the municipal infrastructure function. - **Water Quality Achievement**: Achieved BOD of less than 1.5 mg/L (standard 40) and SS of less than 1 mg/L (standard 40), significantly exceeding legal standards and allowing the resumption of ocean discharge. - **Cost Reduction**: Eliminated the need for vacuum truck operations, drastically reducing enormous emergency response costs.
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Company information
Seisui Industries is a rental company specializing in temporary dewatering plants for sludge treatment and water treatment troubles. We own 90 centrifuges, and we are the only company renting them out nationwide. We also respond quickly to emergencies during trouble situations.
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