[Case Study on Problem Solving] Cleaning Wastewater from a PET Bottle Recycling Plant
50% of the daily wastewater can be recycled! This can reduce the costs of industrial waste disposal.
Kowa Shoji is engaged in the proposal business for water treatment equipment and odor treatment equipment. As the export of waste plastics to overseas becomes stricter, the construction of processing plants in Japan is progressing rapidly. Last year, our company received orders from two companies for recycling plants for business-related PET bottles. Since an alkaline chemical solution is used during the cleaning process, the wastewater becomes strongly alkaline. Both companies are located in regions with very strict discharge standards for rivers and marine areas, which is why we proposed a treatment method that complies with the discharge standards of the rivers. 【Treatment Method】 Pressurized flotation treatment → Fluid carrier → Membrane separation → Discharge (partially reused) → Sedimentation → Dewatering → Industrial waste disposal 【Implementation Effects】 ■ 50% of the daily discharge water volume is reused Company U: 480 m³ → 240 m³ Company T: 720 m³ → 360 m³ The volume of industrial waste was reduced by concentrating the wastewater and applying dewatering treatment. *For more details, please refer to the PDF document or feel free to contact us.
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【Other Wastewater Treatment Cases】 ■Food Factory ・Processed Foods (ham, hamburgers, dumplings, etc.) Treatment of wastewater containing high levels of oil ・Seasoning Liquids (pickled plums, plum vinegar, etc.) Treatment of wastewater with high salt concentration and high BOD load ・Processing of Wheat Products (bread, sweet bread, somen, etc.) Treatment of wastewater containing high levels of oil ■Cleaning Factory ・Hotel Linens Treatment of wastewater suitable for space-saving solutions ■Food Waste Treatment ・Employee Cafeteria Composting of leftover food waste
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For more details, please refer to the PDF document or feel free to contact us.
