Preparation method of biochar-based organic fertilizer taking hermetia illucens excrement as raw material

• Main Authors: LI JI, QIAN JIAYU, TIAN GUANGMING
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; FERTILISERS PRODUCING CARBON DIOXIDE; FODDER; FOODS OR FOODSTUFFS; HUMAN NECESSITIES; INORGANIC CHEMISTRY; INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; NON-METALLIC ELEMENTS; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

The invention discloses a preparation method of a charcoal-based organic fertilizer with hermetia illucens excrement as a raw material. The preparation method comprises the following steps: S1, pretreatment of kitchen waste; s2, using hermetia illucens to absorb the kitchen waste, and separating excrement and adults; s3, taking hermetia illucens excrement as a raw material, and adding auxiliary materials to prepare biomass charcoal; and S4, compounding biomass charcoal, and granulating to form the carbon-based organic fertilizer. The biochar-based organic fertilizer prepared by the method is high in nutrient content, good in adsorption performance and stable in property, has the effect of passivating heavy metals in soil, and is beneficial to quality improvement and yield increase of crops. 本发明公开了一种以黑水虻粪便为原料的生物炭基有机肥的制备方法，包括以下步骤：S1、厨余废弃物预处理；S2、利用黑水虻消纳厨余废弃物，分离粪便与成虫；S3、以黑水虻粪便为原料，添加辅料制备生物质炭；S4、复配生物质炭，造粒形成炭基有机肥。本发明方法制备得到的生物炭基有机肥养分含量高、吸附性能好、性质稳定且具有钝化土壤中重金属的效果，有助于作物提质增产。