Thực trạng và công nghệ xử lý rác thải tại làng mỳ gạo Khắc Niệm, tỉnh Bắc Ninh

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Tác giả: Thị Tố Oanh Phạm

Ngôn ngữ: Vie

Ký hiệu phân loại:

Thông tin xuất bản: Khoa học và Công nghệ - Đại học Thái Nguyên 2020

Mô tả vật lý: 104-110

Bộ sưu tập: Metadata

ID: 410108

Thêm vào giỏ Liên kết toàn văn

Làng mỳ Khắc Niệm ở tỉnh Bắc Ninh hoạt động tự phát với quy mô nhỏ, lạc hậu, thiết bị sản xuất thủ công, mặt bằng sản xuất hẹp, do đó ô nhiễm môi trường ở làng này đã đến mức báo động, ảnh hưởng nghiêm trọng đến môi trường và sức khỏe cộng đồng. Nước thải để sản xuất mì có nồng độ ô nhiễm vượt quá tiêu chuẩn cho phép nhiều lần, đặc biệt là BOD, COD, SS, Nitơ, phốt pho và vi sinh vật gây bệnh .... Phương pháp được sử dụng như: phương pháp khảo sát, thống kê, phân tíchvà tổng hợp, phương pháp chuyên gia, phương pháp phân tích phòng thí nghiệm. pH nằm trong khoảng 5,1-7
DO là từ 1,3 đến 3,2 mg/ l
BOD5 vượt quá tiêu chuẩn cho phép 1,57-4,31 lần và SS 4,6 lần và coliforms 4,2-4,4 lần. Hệ thống xử lý nước thải phân tán là một giải pháp mới cho xử lý nước thải hữu cơ với quy mô dưới 1000 m3/ ngày và đêm, với ưu điểm là hiệu quả xử lý cao, thích ứng với biến động của dòng chảy, không cần tiêu thụ điện nếu khu vực xử lý ở độ dốc thích hợp,công nghệ xử lý thân thiện với môi trường, nước thải được xử lý bởi các vi sinh vật trong nước thải hoặc thông qua các quá trình tự nhiên không có hóa chất và đặc biệt yêu cầu vận hành và bảo trì đơn giản và với chi phí rất thấp., Tóm tắt tiếng anh, Khac Niem rice noodle village in Bac Ninh province operates spontaneously with small-scale, backward, manual production equipment, narrow production ground, therefore environmental pollution in this village has reached an alarming level, seriously affecting on the environment and community health. Waste water for producing noodle has the pollution concentration exceeding the permitted standard many times, especially BOD, COD, SS, Nitrogen, phosphorus and pathogenic microorganisms.... Methods are used such as: survey method, statistics, analysis and synthesis, expert method, method of laboratory analysis. pH is in the range of 5.1-7
DO is from 1.3 to 3.2 mg/l
BOD5 exceed the permitted standards 1.57-4.31 times and SS 4.6 times and coliforms 4.2-4.4 times. Distributed waste water treatment system is a new solution for organic wastewater treatment with scale of less than 1000 m3/day and night, with the advantage of high treatment efficiency, adapting to fluctuations in flow, no power consumption is required if the treatment area is at an appropriate slope, environmentally friendly treatment technology, wastewater is treated by microorganisms in the waste water or through natural processes without chemicals and especially require simple operation and maintenance and at a very low cost.

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