Dan地区项目采用三级污水通过扩散池补给地下水，间接回用特拉维夫都市区的城市污水。全面的监控程序伴随着全面的充电操作。氯离子是含水层中补给废水的可靠示踪剂。通过非饱和带和石灰质砂岩含水层，特别是在有机质、磷、化学稳定性、钠吸附率和几种微量元素方面，出水水质得到了显著改善。 除污水处理外，地下水补给还提供季节性和多年储存，提供经济和心理效益，并提高回收系统的可靠性。包括10个参考文献、表格和图表。

Groundwater recharge with tertiary effluent via spreading basins is practiced in the Dan region project for indirect reuse of municipal wastewater from the Tel Aviv metropolitan area. A comprehensive monitoring program accompanies the full-scale recharge operation. The chloride ion is a reliable tracer of the recharged effluent in the aquifer. The effluent quality is substantially improved by passage through both the unsaturated zone and the calcareous sandstone aquifer, particularly with respect to organic matter, phosphorus, chemical stability, sodium adsorption ratio, and several trace elements. In addition to effluent treatment, groundwater recharge provides seasonal and multiannual storage, offers economical as well as psychological benefits, and enhances the reliability of the reclamation system. Includes 10 references, tables, figures.