Nghiên cứu loại bỏ thành phần dinh dưỡng từ nước thải sản xuất bia bằng hệ thống Ana-Ano-MBR ở các tỷ lệ tuần hoàn nitrate khác nhau = AnaAn Ana-Ano-MBR MBR system for nutrient system for nutrient system for nutrient system for nutrient system for nutrient removal from brewery wastewater at various removal from brewery wastewater at various removal from brewery wastewater at various remo

0 Người đánh giá. Xếp hạng trung bình 0

Tác giả: Viết Hùng Đặng, Thị Thanh Hoa Nguyễn, Nữ Thái Thiên Văn

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Phát triển Khoa học & Công nghệ: Khoa học Trái đất và Môi trường, 2018

Mô tả vật lý: tr.5

Bộ sưu tập: NCBI

ID: 581514

Thêm vào giỏ

Anaerobic and anoxic variations were combined with membrane bioreactor to form an Anaerobic/Anoxic configuration in MBR-based (Ana-Ano-MBR) system for improving the system performance in terms of organic degradation and nutrient removal from brewery wastewater. The model of Ana-Ano-MBR system made from polyacrylic with the capacity of 42 liters was operated with organic loading rate of 0.75 kgCOD/m3.day. The results showed that for the nitrate recycling ratios of 100, 200, 300%, average NH4+-N and TN removal efficiencies of the model were 95.1 and 76.6, 98.5 and 89.6, 98.9 and 90.2%, respectively, and the output values of NH4+-N and TN were within the limits of Vietnam National Standards (QCVN 40:2011/BTNMT, column A). Treatment efficiencies of COD and TP were over 90% and below 60%, respectively, during the whole experiment period. Low phosphorus removal efficiency was the drawback of Ana-Ano-MBR system due to the lack of appropriate system configuration and operational conditions for PAOs’ growth and activity. Các bể kỵ khí và thiếu khí được kết hợp với bể sinh học màng để tạo nên hệ thống Ana-Ano-MBR nhằm tăng cường khả năng xử lý thành phần hữu cơ và dinh dưỡng từ nước thải sản xuất bia. Mô hình Ana-Ano-MBR được làm bằng mica với dung tích 42 lít đã được vận hành với tải trọng hữu cơ 0,75 kgCOD/m3.ngày. Kết quả thu được cho thấy với tỷ lệ tuần hoàn nitrate là 100, 200, 300%, hiệu quả xử lý NH4+-N và TN của mô hình là tương ứng với 95,1 và 76,6
98,5 và 89,6
98,9 và 90,2% và các giá trị đầu ra của NH4+-N và TN là nằm trong giới hạn của Quy chuẩn Việt Nam (QCVN 40:2011/BTNMT, cột A). Hiệu quả xử lý COD và TP là tương ứng với trên 90% và dưới 60%. Hiệu quả loại bỏ phốt pho thấp là một nhược điểm của hệ thống Ana-Ano-MBR do các hạn chế về cấu trúc hệ thống và điều kiện vận hành.

Tạo bộ sưu tập với mã QR