Method of treating wastewater sludge

A method of treating biological sludge containing odor, animal viruses, pathogenic bacteria, and parasites to provide a fertilizer for agricultural lands which can be applied directly to the lands which consists essentially of the following steps:

• mixing said sludge with at least one material selected from the group consisting of lime, cement kiln dust and lime kiln dust to form a mixture;
• wherein the amount of added material mixed with said sludge being sufficient to raise the pH of said mixture to 12 and above for at least one day;
• and drying said mixture to produce a granular material,
• the amount of added material mixed with said sludge and the length of time of drying being sufficient to reduce significantly offensive odor of the sludge to a level that is tolerable;
• to reduce animal viruses therein to less than one plaque forming unit per 100 ml of said sludge;
• to reduce pathogenic bacteria therein no less than three colony forming units per 100 ml of said sludge;
• to reduce parasites therein to less than one viable egg per 100 ml of said sludge;
• to reduce vector attraction to said sludge;
• and to prevent significant regrowth of the pathogenic microorganisms.