Tối ưu hoá công nghệ xử lý nước thải từ chế biên cá để thu hồi năng lượng

• Ngôn ngữ: vie
• Ký hiệu phân loại: 628.3 Sewage treatment and disposal
• Thông tin xuất bản: Hóa học, 2013
• Mô tả vật lý: 264-268
• Bộ sưu tập: Metadata
• ID: 560637

Tóm tắt

The strong economic growth in South-East Asia leads to increasing discharge of wastewaters and an increasing energy consumption. The fish processing industry is one of the fastest growing branches with huge amounts of organically polluted wastewaters. To face this issue, in the present work an optimized system for the treatment of wastewater from fish processing factories is developed. In the first step, the state of art for treating fish processing effluents is described to give an overview of the experiences in this field. Based on anaerobic batch tests the anaerobic degradability of COD from these effluents were determined and found to be 75-80 percent for grease and wastewater from one part-stream. With the combination of on-site flotation units with a centralized anaerobic digestor for flotation tailings an energy recovery rate of 9 kWh/per ton raw fish processed can be achieved. This value does not include the energy consumption during operation of the treatment system.