研究了明矾对有机物的混凝（受混凝pH值、投加量和高锰酸钾预氧化的影响）对氢氧化铝污泥浓缩和脱水特性的影响。随着污泥絮体基质中有机物含量的增加，污泥脱水特性恶化。观察到的污泥特性变化与污泥絮体尺寸和密度的降低有关，当更多的有机物被纳入絮体结构时，污泥絮体尺寸和密度会降低。高锰酸钾的加入提高了污泥脱水率；改进所需的剂量是污泥中有机物含量的直接函数。包括20个参考文献、表格和图表。

The effects of coagulation of organic matter by alum (as influenced by coagulation pH, dosage, and potassium permanganate preoxidation) on the thickening and dewatering characteristics of aluminum hydroxide sludges were examined. Sludge dewatering characteristics worsened as the specific amount of organic matter incorporated into the sludge floc matrix increased. The observed changes in sludge characteristics were correlated to a decrease in sludge floc size and density that occurred when greater amounts of organic matter were incorporated into the floc structure. Addition of potassium permanganate improved sludge dewatering rates; the dosage required for improvement was a direct function of the amount of organic matter present in the sludge. Includes 20 references, tables, figures.