Effect of Turning Frequency on Composting of Empty Fruit Bunches Mixed with Activated Liquid Organic Fertilizer

1st Annual Applied Science and Engineering Conference

工业技术;自然科学

Trisakti, B.^1 ; Lubis, J.^1 ; Husaini, T.^1 ; Irvan^1

Chemical Engineering Department, Faculty of Engineering, University of Sumatera Utara, Jalan Almamater Komplek, Medan

20155, Indonesia^1

关键词: Composting process;    Empty fruit bunches;    Final compost;    Organic fertilizers;    Palm oil mills;    Turning frequencies;    Water holding capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/180/1/012150/pdf
DOI  :  10.1088/1757-899X/180/1/012150

来源: IOP

【 摘 要 】

Composting of Empty Fruit Bunch (EFB) by mixing it with activated liquid organic fertilizer (ALOF) is an alternative way in the utilization of solid waste produced from the palm oil mill (POM). This research was to determine the effect of turning frequency on the rate of composting of EFB mixed with ALOF in a basket composter. The composting process was started with cutting the EFB into pieces with size 1-3 cm, inserting the EFB pieces into basket composter (33 cm W × 28 cm L × 40 cm H), and adding ALOF until moisture content (MC) in the range of 55-65%. During composting, the MC was maintained at 55-65% range by adding the ALOF. The turning frequency on each composter was varied i.e. once in every 1, 2, 3, 4, and 5 days. The parameters analysed during composting were temperature, pH, MC, compost weight, water holding capacity (WHC), CN ratio, and the quality of the final compost. Composting was carried out for 40 days and the best result obtained at turning frequency was 3 days. The best compost characteristic was pH 9.0; MC 57.24%; WHC 76%; CN ratio 12.15%; P 0.58%; and K 0. 95%.