KHẢO SÁT HIỆN TRẠNG VÀ ĐÁNH GIÁ HIỆU QUẢ CỦA NHÀ MÁY XỬ LÝ NƯỚC THẢI TẬP TRUNG TẠI KHU CÔNG NGHIỆP BÌNH HÒA VỚI CÔNG SUẤT 2000M3/NGÀY.ĐÊM

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Tác giả: Thị Thanh Tâm Hồ

Ngôn ngữ: vie

Ký hiệu phân loại:

Thông tin xuất bản: Tạp chí Khoa học Tài nguyên và Môi trường, 2020

Mô tả vật lý: tr.83-90

Bộ sưu tập: Báo, Tạp chí

ID: 324205

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Mục tiêu nghiên cứu là khảo sát hiện trạng và đánh giá hiệu quả của hệ thống xử lý nước thải tập trung tại khu công nghiệp Bình Hòa. Qua kết quả khảo sát các thông số cho biết nhà máy xử lý nước thải của khu công nghiệp Bình Hòa được thiết kế hệ thống xử lý nước thải tập trung với công suất là 2000 m3/ngày.đêm, nhưng công suất thực tế vận hành còn thấp với lưu lượng trung bình là 439 m3/ngày.đêm. Kết quả phân tích nước thải sau bồn lọc áp lực của hệ thống xử lý cho biết pH là 7,7, SS là 33,5 mg/l, BOD5 là 19,5 mg/l, COD là 30 mg/l, Amoni (tính theo N) là 0,85 mg/l, tổng Photpho (tính theo P) là 0,61 mg/l, tổng dầu mỡ khoáng là 0,00 mg/l, Coliform là 295,33 MPN/100 ml, Clo dư 0,00 mg/l, Pb là 0,00765 mg/l, Cu là 0,00 mg/l, Zn là 0,0052 mg/l, Fe là 0,11075 mg/l và tổng Phenol là 0,00 mg/l. Hệ thống xử lý này là kết hợp lý hóa sinh học để xử lý rất hiệu quả, các chỉ tiêu trên đều đạt quy chuẩn (QCVN 40: 2011/BTNMT, cột A) trước khi xả ra nguồn tiếp nhận là kênh Hậu.This study aims to investigate the current status and efficiency of the centralized wastewater treatment system in Binh Hoa industrial area. The survey results found that the wastewater treatment plant of Binh Hoa industrial area was designed with a centralized wastewater treatment system with a capacity of 2000 m3/day.night, but the actual operating capacity was still low with an average discharge of 439 m3/day.night. The results of wastewater analysis after the pressure filter tank of the treatment system showed that pH, SS, BOD5, COD, Ammonium (calculated in N), total Phosphorus (calculated in P), total minerral oil, Coliform, residual Chlorine, Pb, Cu, Zn, Fe and total Phenol were 7.7, 33.5mg/l, 19.5mg/l, 30 mg/l, 0.85 mg/l, 0.61 mg/l, 0.00 mg/l, 295.33 MPN/100 ml, 0.00 mg/l, 0.00765 mg/l, 0.00 mg/l, 0.0052 mg/l, 0.11075 mg/l and 0.00 mg/l, respectively. This physical biochemischy system showed a very effectively in wastewater treatment. All studied water quality parameters meet the national standard (QCVN 40:2011/BTNMT, column A) for effluent discharged into receiving waterway (the Hau canal).

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