Prepn. of soil conditioning prods. e.g., soil conditioners, filter plates etc. - by mixing comminuted plastic wastes and mineral powders, e.g., clays, pelletising and drying

摘要

Prepn. of prods., esp. prods. for conditioning of soil, comprises: (a) opt. washing plastic wastes, and comminuting the (washed) prod.; (b) preparing a mixt. of mineral powder and comminuted plastic wastes; (c) forming, e.g., pelletising the mixt. by pressing; and (d) drying the mixt. The plastic wastes have particle sizes up to 0.2-3 mm. The mineral powder is pulverised clay. The pellets are enriched with fertiliser, esp. liq. manure. The prod. is dried at 120-160 deg.C. The pts. ratio of plastic wastes to mineral powder is 10:1-10. USE/ADVANTAGE - Process may be used for prepn. of soil conditioners, filter plates, etc. Useful way of using plastic wastes.