Abstract Supplying treated greywater within buildings delivers continuous additional resilience and improvements in water efficiency. This includes the making available (by substitution) of greywater resources suitable for non-potable purposes such as flushing toilets. Thereby, the overall daily consumption of pristine potable water for flushing and other lower quality uses is reduced. The empirical measurement of turbidity was confirmed as an accurate and resilient indicator of greywater quality, greywater treatment process efficiency and of well-functioning greywater reuse systems in the short-, medium- and long-term. The methodology applies turbidity monitoring for evidential management and control of treated greywater quality, essential for greywater recycling in the building stock. The results demonstrated evidence of co-variation between turbidity and biochemical oxygen demand in a lightly-loaded greywater treatment process. Real-time monitoring of turbidity delivers responsive, reliable, in-situ and remote measurements for informing building management systems (BMS), comprising an essential part of routine monitoring of greywater treatment plant. The analytical evidence confirms the importance of turbidity measurement and control in both current and future UK and international greywater standards. By undertaking turbidity measurements in compliance with BS 8525-2:2011, greater assurance in the use and compliance of greywater supplies in the built environment is achieved. Consequently, the rationale for including the empirical measurement of turbidity to demonstrate satisfactory management of the greywater quality, treatment system operation, monitoring and compliance in buildings has been confirmed.

中文翻译：

---

浊度测量：其在建筑水资源循环利用中的应用

摘要 在建筑物内供应经过处理的灰水可提供持续的额外弹性并提高用水效率。这包括提供（通过替代）适用于非饮用用途的中水资源，例如冲水马桶。因此，减少了用于冲洗和其他低质量用途的原始饮用水的总体每日消耗量。浊度的经验测量被确认为中水质量、中水处理过程效率和中水回用系统在短期、中期和长期运行良好的准确且有弹性的指标。该方法将浊度监测应用于处理过的灰水质量的证据管理和控制，这对于建筑物中的灰水回收至关重要。结果证明了在轻负荷灰水处理过程中浊度和生化需氧量之间存在共变的证据。实时浊度监测可为建筑管理系统 (BMS) 提供响应迅速、可靠的原位和远程测量，是中水处理厂常规监测的重要组成部分。分析证据证实了浊度测量和控制在当前和未来英国和国际灰水标准中的重要性。通过按照 BS 8525-2:2011 进行浊度测量，可以更好地保证建筑环境中灰水供应的使用和合规性。因此，将浊度的经验测量包括在内以证明灰水水质管理令人满意的基本原理，