FERTILIZER RAW MATERIAL RESOURCE CONSISTING OF INDUSTRIAL WASTE AS CHIEF MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a fertilizer raw material resource consisting of industrial wastes as chief materials. SOLUTION: The fertilizer raw material resource consisting of the industrial wastes formed by feeding a composition composed of papermaking sludge, fly ash, zeolite, diatomaceous earth and water base adhesive into a rotary mixer, mixing the composition at 50 to 100 rpm and manufacturing the resource to a granular form by an extruder, then heating and drying the granules for 20 to 30 minutes by a heating drier of 130 to 150 deg.C as the chief materials has an excellent water retaining capacity and a growth promoting effect occurring in nutrient supplying ability and has an excellent yield increasing effect when used by being mixed with natural fertilizer raw materials.