一个经过处理的橄厂废水和产生的泥的综合生态毒理评估
José N Pinto1, Andreia Pereira1, Ana Rita R Silva1
1Centre for Environmental and Marine Studies (CESAM) & Department of Biology, University of Aveiro, 3810-193 Aveiro, Portugal.
Toxics
|August 27, 2025
概括
化学沉有效地处理橄厂的废水,减少对水生生物的毒性. 然而,由此产生的污泥对土壤有负面影响,需要对农业再利用进行仔细评估.
科学领域:
- 环境科学
- 生态毒理学
- 废水处理
背景情况:
- 橄厂的废水在地中海带来了环境挑战.
- 化学沉技术 (CPT) 提供了一种成本高效的OMWW处理方法.
- CPT产生用于潜在再处理的污泥和用于重复使用的处理水.
研究的目的:
- 评估CPT对OMWW治疗的生态毒理疗效.
- 评估CPT产生的污泥对土壤生物和植物的安全性.
- 确定橄油生产中循环经济的潜力.
主要方法:
- 使用淡水生物 (Raphidocelis subcapitata,Daphnia magna,Danio rerio) 的生态毒理学测试
- 使用土壤无脊椎动物 (Folsomia candida,Enchytraeus crypticus) 的陆地生态毒理学测试
- 使用Brassica oleracea和Lolium perenne进行植物生长测试.
主要成果:
- CPT显著降低了对测试的淡水物种的OMWW毒性.
- 污泥的应用降低了植物芽生物质和水含量.
- 土壤无脊椎动物的生存没有受到影响,但污泥对繁殖产生了负面影响.
结论:
- CPT对治疗OMWW和减少水生物质的毒性具有前景.
- 由于对土壤生物群的不良影响,污泥的应用需要仔细评估.
- 需要进一步改进,以实现 OMWW 处理副产品的循环利用.
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