| 姜婷婷， 胡雅琪， 马 蒙， 吴文勇.再生水滴灌土壤壬基酚迁移规律土箱模拟试验研究Journal of Water Resources and Water Engineering[J].,2025,36(1):224-230 |
| 再生水滴灌土壤壬基酚迁移规律土箱模拟试验研究 |
| Soil box simulation study of nonylphenol migration patterns in soil under reclaimed water drip irrigation |
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| DOI：10.11705/j.issn.1672-643X.2025.01.25 |
| 中文关键词: 内分泌干扰物 再生水 土壤 壬基酚 滴灌 迁移 土箱模拟试验 |
| 英文关键词: endocrine disrupting compounds(EDCs) reclaimed water soil nonylphenol drip irrigation migration soil box simulation test |
| 基金项目:国家自然科学基金面上项目(52079146) |
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| 中文摘要: |
| 再生水灌溉能有效缓解农业水资源短缺，但再生水中的内分泌干扰物会随着灌溉进入土壤。为明确再生水滴灌下土壤中典型内分泌干扰物的时间及空间变化规律，采用土箱试验，研究了再生水滴灌下土壤中壬基酚及其同分异构体的含量与分布，分析了不同深度土壤中壬基酚及其同分异构体的迁移和降解特征，提出了土壤中壬基酚的质量平衡规律。结果表明：在不同土壤深度中壬基酚总体呈现出先增大后减小的变化趋势；在不同深度土层中，壬基酚的同分异构体累积与分布程度不同，其中NP3、NP2、NP11和NP12的含量较多，NP1、NP7和NP8的含量较少；在滴灌条件下，清水灌溉时壬基酚衰减率为48.40%，再生水灌溉时壬基酚的衰减率范围为69.18%~98.50%，且随着再生水中NP浓度的增大，土壤中壬基酚的衰减率呈现增大的趋势。 |
| 英文摘要: |
| Reclaimed water irrigation can effectively alleviate agricultural water scarcity; however, reclaimed water contains endocrine disrupting compounds(EDCs) that can leach into the soil during irrigation. We carried out a soil box simulation test to clarify the temporal and spatial patterns of typical endocrine disruptors in soils under drip irrigation with reclaimed water. We investigated the distribution and accumulation of a typical endocrine disruptor named nonylphenol and its isomers in soils under drip irrigation with reclaimed water, analyzed their migration and degradation processes at different soil depths, and proposed the mass balance law of nonylphenol in soil. The results showed that nonylphenol in soil presented a trend of increasing and then decreasing at different soil depths. The degree of accumulation and distribution of nonylphenol isomers varied in soils at different depths, with contents of NP3, NP2, NP11 and NP12 higher than those of NP1, NP7 and NP8. Under drip irrigation conditions, the attenuation rate of nonylphenol for clear water irrigation was 48.40%,; whereas that for reclaimed water irrigation ranged from 69.18% to 98.50%, and the attenuation rate of nonylphenol in soil increased with increasing concentration of reclaimed water. |
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