Commonwealth Scientific and Industrial Research Organisation, Water for a Healthy Country Flagship Program, Private Bag No 2, Glen Osmond, SA 5064, Australia.
J Environ Manage. 2011 Oct;92(10):2410-8. doi: 10.1016/j.jenvman.2011.04.005. Epub 2011 Jun 8.
A changing climate and increasing urbanisation has driven interest in the use of aquifer storage and recovery (ASR) schemes as an environmental management tool to supplement conventional water resources. This study focuses on ASR with stormwater in a low permeability fractured rock aquifer and the selection of water treatment methods to prevent well clogging. In this study two different injection and recovery phases were trialed. In the first phase ~1380 m(3) of potable water was injected and recovered over four cycles. In the second phase ~3300 m(3) of treated stormwater was injected and ~2410 m(3) were subsequently recovered over three cycles. Due to the success of the potable water injection cycles, its water quality was used to set pre-treatment targets for harvested urban stormwater of ≤ 0.6 NTU turbidity, ≤ 1.7 mg/L dissolved organic carbon and ≤ 0.2 mg/L biodegradable dissolved organic carbon. A range of potential ASR pre-treatment options were subsequently evaluated resulting in the adoption of an ultrafiltration/granular activated carbon system to remove suspended solids and nutrients which cause physical and biological clogging. ASR cycle testing with potable water and treated stormwater demonstrated that urban stormwater containing variable turbidity (mean 5.5 NTU) and organic carbon (mean 8.3 mg/L) concentrations before treatment could be injected into a low transmissivity fractured rock aquifer and recovered for irrigation supplies. A small decline in permeability of the formation in the vicinity of the injection well was apparent even with high quality water that met turbidity and DOC but could not consistently achieve the BDOC criteria.
气候变化和城市化的加剧推动了人们对含水层储存和恢复 (ASR) 技术的兴趣，将其作为一种环境管理工具来补充传统水资源。本研究侧重于低渗透性裂隙岩含水层中的 ASR 与雨水利用，以及选择水处理方法以防止水井堵塞。本研究进行了两个不同的注入和恢复阶段的试验。在第一阶段，注入并回收了约 1380 立方米的饮用水，共进行了四个循环。在第二阶段，注入了约 3300 立方米的处理后的雨水，并随后回收了约 2410 立方米，共进行了三个循环。由于饮用水注入循环的成功，其水质被用于设定回收城市雨水的预处理目标，即浊度≤0.6 NTU、溶解有机碳≤1.7mg/L 和可生物降解的溶解有机碳≤0.2mg/L。随后评估了一系列潜在的 ASR 预处理选择方案，最终采用超滤/颗粒活性炭系统来去除引起物理和生物堵塞的悬浮物和营养物。用饮用水和处理后的雨水进行的 ASR 循环测试表明，经过处理前含有可变浊度（平均 5.5 NTU）和有机碳（平均 8.3mg/L）浓度的城市雨水可以注入低渗透性裂隙岩含水层，并回收用于灌溉用水。即使注入高质量的水，满足浊度和 DOC 标准，但仍无法始终达到 BDOC 标准，这导致在注水井附近的地层渗透率出现了轻微下降。
