Slaughterhouse waste and dead animals are mainly disposed of by incineration, which generates greenhouse gases and NO_x. These wastes are a source of nutrients that can be recovered by circular economy techniques if material recycling is given a priority over energy recovery. To valorize high-protein animal waste (containing bones, meat, feather) for fertilizer purposes, the waste was processed by acid solubilization and neutralized with potassium hydroxide solution, which yielded a liquid fertilizer with plant growth biostimulating properties (due to the amino acids presence). The composition analysis showed that new fertilizers met all quality requirements set by the law, contain ~0.5% m/m amino acids and are microbiologically pure. The fertilizer was enriched with microelements to the level of 0.2% m/m and tested for biological effectiveness in germination tests and field studies. Compared with the commercial formulation, the fertilizer increased stem length and chlorophyll content (by 8.2% and 27.0%, respectively), wheat crop yield and grain micronutrients density (Cu by 31.2%, Mn by 10.5%, Zn by 33.9%) and improved the wheat flour baking properties. The described solution propose a safe way to utilize hazardous waste via technological mobile installation, enabling no transportation of waste, which is an important aspect of sanitary-epidemiological risk minimization.

屠宰场废物和死动物主要通过焚烧处理，产生温室气体和_NOx. 如果材料回收优先于能源回收，这些废物是可以通过循环经济技术回收的营养来源。为了将高蛋白动物废物（包括骨头、肉、羽毛）用于肥料用途，通过酸溶解处理废物并用氢氧化钾溶液中和，从而产生具有植物生长生物刺激特性的液体肥料（由于氨基酸的存在）。成分分析表明，新肥料符合法律规定的所有质量要求，含有约 0.5% m/m 的氨基酸并且微生物纯。该肥料富含微量元素至 0.2% m/m 水平，并在发芽试验和田间研究中测试了生物有效性。与商业配方相比，肥料增加了茎长和叶绿素含量（分别增加了 8.2% 和 27.0%）、小麦作物产量和谷物微量营养素密度（Cu 增加了 31.2%、Mn 增加了 10.5%、Zn 增加了 33.9%），并改善了小麦面粉的烘烤性能。所描述的解决方案提出了一种通过技术移动装置利用危险废物的安全方法，无需运输废物，这是卫生流行病学风险最小化的一个重要方面。