Thứ bảy, 13/06/2026 | 22:29
ABSTRACT The research reusing waste sludge from shrimp-raising ponds at 5 selected locations in Nghe An province including Quynh Di - Hoang Mai, Quynh Luong - Quynh Luu, Nghi Hop - Nghi Loc, Hung Hoa - Vinh and Dien Trung - Dien Chau is aimed at establishing the compost-producing pilot model. The results of investigating important effecting factors on optimal composting conditions show that pH ranges from 7.2 - 8.2, temperature gains 20 - 45o C and humidity varies from 22 - 65% suitable for organic-decomposing microorganisms. After 86 days of continuously brewing and mixing, the completed compost having pH of 7.32 - 7.55, total Nitrogen of 1.59 - 3.95%, Carbon of 19.91 - 23.75%, amont of heavy metals (Pb, As, Hg, Cd) is met the requirements of organic fertilizer quality regulated in the Circular No. 36/2010/TT-BNNPTNT. Keywords: Shrimp pond waste sludge, Nghe An, pH, humidity, organic fertilizer, compost. |
Bộ Công Thương phê duyệt Đề án phát triển công nghiệp sinh học thành ngành kinh tế - kỹ thuật
12/06/2026