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把西安市污水处理厂所产污泥与调理剂(麦糠或玉米秆糠、鸡粪)及膨胀剂(玉米秸秆短节)按一定比例混合,调节水分为50%-65%,C/N 为30,用通气静态垛堆肥化处理,可获得55℃以上的高温5-7d。腐熟的堆肥风干、过筛,混入一定量的尿素和磷肥使全氮达2%,全磷达1%,并补充必要的微量元素制成复合有机肥料。把它施用于林木、花卉、草坪草及用作林木容器育苗基质,均获得良好的生长响应,土壤的物理、化学及生物学性质均有所改善。
The sludge and conditioning agent (wheat bran or corn stalk bran, chicken manure) and expanders (corn stalk short section) produced by the wastewater treatment plant in Xi’an are mixed according to a certain proportion to adjust the water content to 50% -65%, C / N 30, with static pile stacking ventilation treatment can be obtained above 55 ℃ high temperature 5-7d. Composting compost dried, sieved, mixed with a certain amount of urea and phosphate fertilizer to make up to 2% of total nitrogen, total phosphorus up to 1%, and make up the necessary trace elements made of composite organic fertilizer. Applying it to forest trees, flowers, turf grasses, and substrate for seedling growth of tree containers all achieved good growth response, and the physical, chemical and biological properties of the soil improved.