OPEFB: Innovative Material for Organic Fertilizer

Oil palm empty fruit bunch (OPEFB), as a by-product of the palm oil industry, is increasingly becoming an important raw material for organic fertilizer production. Through scientific processing, this cellulose-rich agricultural waste not only addresses waste treatment challenges but also provides high-quality organic fertilizer for sustainable agriculture. Innovative Breakthroughs in Pretreatment Technology Due to OPEFB’s high cellulose content and carbon-nitrogen ratio characteristics, the pretreatment process requires special technical handling. First, heavy-duty crushers break the raw material into 2-5 millimeter particles, significantly increasing microbial contact area and creating conditions for subsequent fermentation. Carbon-nitrogen ratio adjustment is crucial, typically mixing OPEFB with high-nitrogen materials like chicken manure at a 7:3 ratio to ensure the raw material’s carbon-nitrogen ratio reaches the ideal range of 25-30:1. Moisture regulation is equally important. By adding water or sawdust, the mixed raw material’s moisture content is controlled between 55-60%. This ideal humidity state both meets microbial activity requirements and ensures good compost structure. Large-scale production typically employs professional equipment like double-shaft shredders and drum screeners to ensure processing efficiency and product quality.

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