农业中的飞灰:利用,益处和挑战的全球视角
Chinmaya Kumar Swain1, Ipsita Pattanaik2, Chinmay Pradhan3
1Dept. of Biotechnology, MITS Institute of Professional Studies, Rayagada, Odisha, India. chinu.swain@gmail.com.
Environmental geochemistry and health
|March 12, 2026
概括
煤炭副产品飞灰 (FA) 在农业中使用时可以改善土壤健康和作物产量. 然而,由于潜在的重金属污染,需要谨慎管理,促进可持续的农业实践.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 来自燃煤发电厂的飞灰 (FA) 生产由于大规模生产和不足利用而带来了环境挑战.
- 在垃圾处理和可持续农业的交叉点上,管理飞灰至关重要,全球和印度都产生了大量的飞灰.
- 目前的利用率不足,导致垃圾填埋和环境问题.
研究的目的:
- 综合全球和地区关于飞生成和利用模式的数据.
- 评估飞灰在农业中的农学潜力.
- 为了确定在农业安全有效的飞灰应用的障碍和机会.
主要方法:
- 审查关于飞灰在各种作物中的应用的科学研究.
- 对土壤特性和作物产量改善的实验发现的分析.
- 检查飞利用的案例研究和成本效益分析.
- 评估重金属含量和监管指南.
主要成果:
- 适当的飞应用可以提高土壤pH值,提高营养素的可用性 (K,Ca,Mg,Zn),并提高作物产量.
- 飞灰与有机修正案的整合改善了土壤结构,有机物质和微生物生物质.
- 人们担心重金属 (As,Pb,Cd) 超过了允许的限值,需要监管应用.
- 在印度和国际上记录了成功的应用和农业/环境效益.
结论:
- 飞作为部分肥料替代品具有经济可行性,特别是对于酸性/边缘性土壤.
- 采用障碍包括缺乏意识,质量不一致和监管差距.
- 关键的研究缺口包括长期数据,标准化协议和以农民为中心的模型.
- 需要政策建议和最佳实践,以安全,以科学为基础,将飞纳入农业,支持循环经济和可持续的土壤管理.
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