生物增量和半透明覆盖作为污水堆肥中微污染物清除策略的比较
Gabriela Angeles-de Paz1,2, Miguel Ángel Díaz-Moreno1,2, Ángeles Trujillo-Reyes1,2
1Microbiology and Environmental Technologies Group, Institute of Water Research, University of Granada, 18071 Granada, Spain.
Toxics
|August 27, 2025
概括
在污水污泥堆肥中使用菌 (Penicillium oxalicum) 的生物增量有效地减少了卡巴马西和重金属等微污染物. 这种方法还增强了微生物的多样性,
科学领域:
- 环境科学
- 微生物学
- 土壤科学
背景情况:
- 未经处理的污水污泥 (SS) 应用于农业土壤,导致污染物严重污染.
- 在SS中有效和可扩展的微污染物降解技术有限.
- 用于SS处理的堆肥适应需要在现实条件下进行进一步的研究.
研究的目的:
- 评估从SS中去除微污染物的生物增量和半透盖堆肥方法.
- 评估Penicillium oxalicum对SS堆肥过程的影响.
- 确定不同堆肥策略在生产安全肥料中的有效性.
主要方法:
- 在现场使用SS和橄修剪风索进行堆肥实验.
- 处理包括生物增量 (P. oxalicum),覆盖堆肥,联合处理和常规堆肥 (对照).
- 堆肥时间为99天,随后对微污染物,重金属,微生物群落和肥料质量进行分析.
主要成果:
- 没有覆盖的生物增量增加了,减少了重金属,这是减少卡巴马西的唯一方法.
- 覆盖和生物增量堆肥增加了微生物丰富性,多样性和细菌丰富性.
- 四个成熟的堆肥都符合B类肥料标准,并通过了发芽测试.
结论:
- 用P. oxalicum进行生物增量是SS堆肥中微污染物修复的一个有前途的策略.
- 覆盖堆肥可以进一步增强微生物活动和污染物降解.
- 这项研究表明,堆肥有可能将SS转化为安全可用的肥料.
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