通过碳修改的化系统,减少废水中含量的>90%:在马萨诸塞州巴恩斯塔布尔 (Cape Cod) 的一个现场演示
Laura E Erban1, Sara K Wigginton2, Brian Baumgaertel2
1U.S. Environmental Protection Agency, Office of Research and Development, Narragansett, RI, USA.
Journal of environmental management
|October 12, 2024
概括
具有木片生物反应器的创新化系统显著减少了来自Cape Cod房屋的污染. 这些系统为改善敏感流域的水质提供了具有成本效益的解决方案.
科学领域:
- 环境工程 环境工程
- 水质管理水质管理
- 废水处理 废水处理
背景情况:
- 现场废水处理系统 (OWTS) 是美国流域中营养污染的主要来源.
- 在马萨诸塞州巴恩斯塔布尔县,OWTS贡献了80%的活性 (N) 负载,损害了河口和地下水.
- 传统的化系统无法在受损的地区充分去除.
研究的目的:
- 评估两个具有木生物反应器的创新/替代 (I/A) 化系统模型的现场性能,以提高N去除.
- 评估这些I / A系统在减少住宅废水中的营养度和质量负载方面的有效性.
- 确定这些系统在达到总 (TN) 度目标<10 mg/L时的可靠性.
主要方法:
- 战略性地将14个住宅OWTS替换为两种I / A化系统模型,其中包括木片生物反应器.
- 监测了25个月的系统性能,每月收集入水和废水样本进行N和 (P) 分析.
- 连续计量流量以估计营养物质负载,并评估系统可靠性与TN <10 mg/L的性能目标相比.
主要成果:
- 提出了13个系统的现场性能数据,其中至少有一年的监测.
- 通过I/A系统实现的营养度和质量负载的量化减少.
- 证明了木生物反应器系统在达到目标TN<10 mg/L废水度方面的可靠性.
结论:
- 研究的I/A污水处理系统有效地减少了来自住宅废水的气负载.
- 木片生物反应器技术为管理敏感流域过剩的可行和可靠的选择.
- 这些发现支持在未被排污的地区更广泛地考虑和实施增强的除技术.
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