Sản xuất phân hữu cơ từ rác thải sinh hoạt

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Tác giả: Minh Thuận Lê, Hoàng Nhân Nguyễn, Xuân Hoàng Nguyễn, Thị Thanh Ngân Phan, Thảo Nguyên Trần, Thị Long Trịnh, Danh Nghiệp Trương

Ngôn ngữ: Vie

Ký hiệu phân loại: 624 Civil engineering

Thông tin xuất bản: Khoa học (Đại học Cần Thơ) 2023

Mô tả vật lý: 45523

Bộ sưu tập: Metadata

ID: 407994

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Tóm tắt
Chủ đề

Nghiên cứu được thực hiện nhằm đánh giá chất lượng phân hữu cơ và hiệu quả đối với cây trồng. Vật liệu ủ là chất thải hữu cơ được phân loại và có sử dụng nấm Trichoderma. Thí nghiệm thực hiện trên mẻ ủ thể tích 0,144 m3 , ở hai nghiệm thức có bổ sung nấm Trichoderma với liều lượng 20 g/m3 và không dùng chế phẩm. Sau 60 ngày ủ, các chỉ số như nhiệt độ, ẩm độ, pH, sụt giảm thể tích, cac-bon tổng, ni-tơ tổng ở hai nghiệm thức giảm dần theo thời gian
ngược lại, tổng đạm, tổng lân dễ tiêu tăng. Sản phẩm phân sau ủ có pH, độ ẩm, tổng cacbon, tổng nitơ, tổng phốtpho theo thứ tự là 7,93, 34,2%, 15,18%, 1,52%, 2,65%. Mẻ ủ quy mô lớn ngoài thực tế với khối lượng ủ xấp xỉ 9,0 tấn cũng được thực hiện và cho kết quả tương đồng với kết quả ghi nhận ở thí nghiệm. Quy trình sản xuất phân compost được đề xuất thông qua kết quả nghiên cứu này., Tóm tắt tiếng anh, Production of compost from municipal solid waste was conducted to evaluate the quality of organic fertilizer and its effect on plant. Input material was sorted organic waste and used Trichoderma fungi as additional microorganism. The experiment was carried out on an incubation batch of 0.144 m3, in two treatments without and with inoculum of Trichoderma at a dose of 20 g/m3. After 60 days of incubation, the operational parameters such as temperature, humidity, pH, volume loss, total carbon, and total nitrogen in the treatments decreased gradually over time
In contrast, total nitrogen and total digestible phosphorus increased. Compost product with pH, moisture, total carbon, total nitrogen and total phosphorus was pH 7.93, 34.2%, 15.18%, 1.52% and 2.65%, respectively. Large-scale batch composting with a volume of approximately 9.0 tons was also conducted and operational results were similar to those observed in the experimental scale. An operational composting process is recommended through the results of this study.

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