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Application of Eichhornia crassipes and Pistia stratiotes for treatment of urban sewage in Israel

机译:Eichhornia crassipes和Pistia地层在以色列城市污水处理中的应用

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摘要

The effectiveness of sewage purification by aquatic plants, such as water hyacinth (Eichhomia crassipes) and water lettuce (Pistia stratiotes), was tested on laboratory and pilot scales. Cascade and semi-continuous pilot experiments verified that the plants are capable of decreasing all tested indicators of water quality to levels that permit the use of the purified water for irrigation of tree crops. This applies to biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), and turbidity. The laboratory-scale tests confirm the capacity of the plants to reach and hold reasonably low levels of BOD (5-7 mg L-1) and COD (40-50 mg L-1) and very low levels of TSS (3-5 mg L-1) and turbidity (1-2 NTU).
机译:在实验室和中试规模上测试了水生植物(如凤眼兰(Eichhomia crassipes)和生菜(Pistia stratiotes))净化污水的有效性。级联和半连续的中试实验证明,这些植物能够将所有测试的水质指标降低至允许使用纯净水灌溉林木的水平。这适用于生化需氧量(BOD),化学需氧量(COD),总悬浮固体(TSS)和浊度。实验室规模的测试确认了植物达到并保持较低水平的BOD(5-7 mg L-1)和COD(40-50 mg L-1)以及保持较低水平的TSS(3-5)的能力。毫克L-1)和浊度(1-2 NTU)。

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