本文报道了明矾污泥土地利用对植物生长可能产生的影响。对羊茅和火炬松幼苗的生长进行了研究，以确定适当的明矾污泥负荷，并评估潜在的有害影响。此外，还开展了一项土柱渗滤液研究，以评估土地施用污泥对地下水的潜在影响。该研究利用接受各种明矾污泥负荷的土柱来评估应用模拟降雨产生的渗滤液特性。温室研究发现，植物有效磷的减少是土地利用的最大障碍。这种影响可以通过适当的作物选择和添加肥料来克服。柱研究数据表明，在4%的负荷率下，土地使用不太可能导致地下水污染。

This paper reports on an investigation into the possible effects of land application of alum sludges on plant growth. The growth of fescue and loblolly pine seedlings was studied to determine proper alum sludge loadings and to evaluate an potentially harmful effects. Also, a soil column leachate study was initiated to evaluate the potential groundwater effects of land applied sludges. The study utilized soil columns which received various alum sludge loadings to evaluate the leachate characteristics resulting from application of simulated rainfall. The greenhouse study found that the reduction in plant available phosphorus is the largest drawback to land application. This effect can be overcome through proper crop selection of the addition of fertilizers. The column study data suggest that groundwater contamination is not likely as a result of land application at a 4 percent loading rate.