本文描述了为评估煤铝过滤器在低碱度、低浊度水源水处理中的应用而进行的研究。所研究的工艺包括煤铝颗粒介质过滤器和进水pH值调节。将水的pH值调整至4-6范围，并通过煤铝床过滤。对过滤出水进行消毒和pH值调整，以确保其稳定性，从而完成了处理方案。煤铝过滤器在过滤之前不需要进行混凝、絮凝和沉淀。 除pH值调整外，该工艺不需要添加化学品，因此降低了固体处理要求。煤铝过滤器成功地将合成和天然原水中的浊度降低到1.0 ntu以下。有必要在酸性或碱性环境中操作煤铝过滤器，以便铝介质发生活性腐蚀。研究发现，废水质量取决于过滤速率。发现其物理和操作特性与传统颗粒介质过滤器相当。 控制煤砂过滤器的性能总是远远低于煤铝过滤器。确定并讨论了通过煤铝过滤器降低浊度的主要机理。与常规处理相比，煤铝处理的成本更高。包括7个参考文献、表格、图表。

This article describes research conducted to evaluate the use of coal-aluminum filters for the treatment of low-alkalinity, low-turbidity source waters. The process studied consisted of a coal-aluminum granular media filter in combination with pH adjustment of the influent water. The pH of the water was adjusted to the 4-6 range and was filtered through the coal-aluminum bed. Disinfection and pH adjustment of the filter effluent for stability completed the treatment scheme. Coal-aluminum filters do not require coagulation, flocculation, and sedimentation prior to filtration. Except for pH adjustment, the process does not require the addition of chemicals, thus reducing solids-handling requirements. The coal-aluminum filter successfully reduced turbidity in both a synthetic and natural raw water to less than 1.0 ntu. It was necessary to operate the coal-aluminum filter in an acidic or alkaline environment so that active corrosion of the aluminum media would occur. Effluent quality was found to be dependent on filtration rate. Physical and operating characteristics were found to be comparable to those of a conventional granular media filter. The performance of a control coal-sand filter was always substantially inferior to the coal-aluminum filter. Principal mechanisms involved in the reduction of turbidity through coal-aluminum filters are identified and discussed. Costs of the coal-aluminum process compare favorably with those of conventional treatment. Includes 7 references, tables, figures.