位于礼贤镇的农业废弃物综合处理中心里，经过初步粉碎的秸秆、瓜秧尾菜等，通过传送带进入机器， 分别进入不同的处理环节，有的经过高温处理后进入巨大的好氧发酵池缓慢发酵，有的进入固化成型设 备压制成颗粒或方块…… 新京报讯（记者周怀宗）收获后的秸秆、遗弃的瓜秧尾菜、园子里的枯枝落叶……这些农业废弃物如何 处理？是否还有利用价值？又该如何利用？在北京市大兴区礼贤镇农业废弃物综合处理中心，这些原本 被当成垃圾的农业废弃物，通过晾晒、打碎、筛选、发酵、压制等不同工序，最终变成了宝贵的资源， 用作燃料、有机肥、各种添加剂的原材料。 负责人李俊山介绍，处理中心自2022年8月建站后至10月正式投产运行，建有好氧发酵肥料化、颗粒燃 料化、成型饲料化等多条生产线，现经过再次增加设备提升产能，达到年处理秸秆等农林废弃物4万吨 以上。 过去几年中，中国农科院环发所与北京市大兴区农业农村局建立紧密合作关系，以国家秸秆综合利用重 点区建设为依托，开展秸秆还田生态效应监测、秸秆尾菜资源台账构建和专题技术培训等，以科技助力 大兴区高效推进秸秆、瓜秧尾菜等农业废弃物资源化利用。中国农科院环发所副研究员、北京市生态循 环低碳发展创新团队岗位专家 ...

Core Viewpoint - The tobacco industry in Ji'an, Jiangxi Province, is transitioning from traditional coal-based drying methods to a green biomass energy approach, significantly improving both ecological and economic outcomes for local farmers [1][2][3] Group 1: Industry Challenges - Traditional coal-fired drying methods have high energy consumption, pollution, and inefficiency, with over 60% of high-quality tobacco leaves produced [2] - Thousands of coal-fired drying houses consume over tens of thousands of tons of coal annually, leading to significant emissions of sulfur dioxide and nitrogen oxides [2] Group 2: Innovative Solutions - In 2019, Ji'an Tobacco prioritized "green drying" and initiated a pilot project using biomass pellet fuel made from agricultural waste, which has a 15% higher calorific value than coal and nearly zero sulfur content [2] - The first two pilot drying houses showed a significant reduction in costs and a 90% decrease in pollutant emissions, prompting farmers to adopt the new technology [2] Group 3: Technological Advancements - The use of biomass fuel allows for stable combustion and precise temperature control within ±1°C, enhancing the quality of tobacco leaves [2] - Collaboration with research institutions has led to breakthroughs in drying technology, with plans for 100% conversion of drying houses to the new system by 2024 [2] Group 4: Ecological and Economic Benefits - The shift to green drying is expected to replace approximately 15,000 tons of coal annually, reducing carbon dioxide emissions by about 40,000 tons, equivalent to planting 2 million trees [3] - By 2024, the proportion of high-quality tobacco is projected to reach over 75%, with average farmer income exceeding 5,000 yuan per mu, marking a significant increase from traditional methods [3] - The improved quality of tobacco leaves has made them highly sought after in high-end markets, contributing to an annual output value close to 200 million yuan [3]