生物炭修正案旨在减少回收污染沉积物的环境影响
Dario Liberati1, Syed Wasif Ahmed1, Nafeesa Samad2
1Department for Innovation in Biological, Agro-Food and Forest Systems (DIBAF), University of Tuscia, Via San Camillo de Lellis Snc, 01100, Viterbo, Italy.
Journal of environmental management
|July 23, 2023
概括
将适量的生物炭 (3%) 添加到污染的疏沉积物中,显著减少了碳损失和释放. 将这一点与灌木生长相结合,进一步减轻了沉积物管理对环境的影响.
科学领域:
- 环境科学 环境科学
- 土壤科学 土壤科学
- 生物地质化学生物地质化学
背景情况:
- 疏会产生大量的污染沉积物,需要有效的管理.
- 沉积物再利用带来了温室气体排放和污染物转移等环境风险.
研究的目的:
- 评估生物炭在不同剂量中对减轻受污染的疏沉积物的环境影响的有效性.
- 评估生物炭和植物生长对沉积物修复的联合影响.
主要方法:
- 用不同的生物炭剂量 (3%及以上) 修改了疏沉积物.
- 测量了生物炭修改和灌木种植对二氧化碳排放,碳损失和释放的影响.
- 分析了有机物矿化和基质温度.
主要成果:
- 3%的生物炭剂量将二氧化碳排放量减少25%,碳损失减少89%,释放量减少35%.
- 较高的生物炭剂量没有产生类似的益处,可能是由于基板升温增加.
- 使用3%生物炭的灌木生长有效抵消了沉积物的二氧化碳排放,并减少了气损失.
结论:
- 适度的生物炭应用 (3%) 与灌木种植相结合,为管理有机物质丰富的疏沉积物提供了一个有前途的战略.
- 这种方法可以显著减少二氧化碳和化合物的环境释放.
- 生物炭对有机物矿化和基质温度的影响取决于剂量.
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