KHẢO SÁT HIỆN TRẠNG QUY TRÌNH XỬ LÝ NƯỚC THẢI CỦA CÔNG TY TRÁCH NHIỆM HỮU HẠN PHÒNG KHÁM ĐA KHOA BÌNH AN THÀNH PHỐ CHÂU ĐỐC TỈNH AN GIANG

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Tác giả: Thị Thanh Tâm Hồ

Ngôn ngữ: vie

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Thông tin xuất bản: Tạp chí Khoa học Tài nguyên và Môi trường, 2022

Mô tả vật lý: tr.46011

Bộ sưu tập: Metadata

ID: 335771

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Mục tiêu nghiên cứu là khảo sát hiện trạng quy trình xử lý nước thải của Công ty TNHH phòng khám Đa khoa Bình An, thành phố Châu Đốc, tỉnh An Giang. Qua kết quả khảo sát cho biết hệ thống xử lý nước thải được thiết kết với công suất là 6 m3 /ngày.đêm, nhưng lưu lượng thải thực tế dao động từ 3 đến 5 m3/ngày.đêm. Kết quả phân tích nước thải đầu vào tại bể thu gom và đầu ra của mương thoát nước cho biết pH là 7,19 - 6,7, TSS là 38 - 15 mg/l, BOD5 là 37 - 57 mg/l, COD là 80 - 103 mg/l, Amoni (N - NH4+) là 45,18 - 8,75 mg/l, Sunfua (tính theo H2S) là 0,04 - 0,04 mg/l, Nitrat (N - NO3-) là 0,06 - 0,03 mg/l, Phosphat (P - PO43-) là 4,55 - 0,84 mg/l, Dầu mỡ ĐTV là 0,3 - 1,31mg/l, Tổng Coliforms là 2,7 × 103 - 2,4 × 103 MPN/100 ml, Salmonella, Vibrio cholera và Shigella thì không phát hiện (KPH - KPH). Hệ thống xử lý nước thải kết hợp lý sinh học để xử lý rất hiệu quả thông số Amoni (N - NH4+), nhưng thông số BOD5 và COD tăng nhẹ là do sự phân hủy vi sinh vật trong bể sinh học. Các thông số trên đều đạt quy chuẩn (QCVN 28:2010/BTNMT, cột B, Cmax) trước khi xả ra nguồn tiếp nhận là mương thoát nước dẫn ra cống thoát nước thải chung của thành phố Châu Đốc.The research objective was to survey the current status of the wastewater treatment process of Binh An General Clinic Co., Ltd., Chau Doc city, An Giangprovince. According to the survey results show that the wastewater treatment system was designed with a capacity of 6 m3/day.night, but the actual discharge volume ranges from 3 to 5 m3/day.night. The analysis results of the inlet wastewater at the collection tank and the outlet of the drainage ditch show that the pH was 7,19 - 6,7, TSS was 38 - 15 mg/l, BOD5 was 37 - 57 mg/l, COD was 80 - 103 mg/l, Ammonium (N-NH4+) was 45,18 - 8,75 mg/l, Sulfide (in H2S) was 0,04 - 0,04 mg/l, Nitrate (N-NO3-) was 0,06 - 0,03 mg/l, Phosphate (P - PO43-) was 4,55 - 0,84 mg/l, Vegetable Grease was 0,3 - 1,31 mg/l, Total Coliforms were 2,7 × 103 - 2,4 × 103 MPN/100 ml, Salmonella, Vibrio cholera and Shigella were not detected. The wastewater treatment system combines biological rationality to effectively treat ammonium (N - NH4+) parameters, but the slight increase in BOD5 and COD parameters is due to the decomposition of microorganisms in the biological tank. The above parameters all meet the standards (QCVN 28:2010/BTNMT, column B, Cmax) before being discharged into the receiving source, which is the drainage ditch leading to the common sewer of Chau Doc city

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