制药污泥好氧堆肥肥效评价

通过实验确定了制药污泥好氧强制通风堆肥工艺流程及参数,对污泥肥在草坪、沙化土地上的应用效果进行了分析。结果表明:腐熟的污泥肥能提高土壤肥力,促进草木生长,应用于城市绿化,避免了污泥中的重金属及有害物质进入食物链;污泥肥施用于沙化土壤可有效提高风沙土壤中营养物质含量,改良沙化土壤贫瘠的理化性状,可以防风固沙、治理沙化土地。

This paper confirmed the best compost process and parameter of pharmaceutical sludge by forced aerated compost experiment. The application effect of sludge fertilizer on the lawn and desert land was analyzed. Rotten sludge fertilizer can raise soil fertility, promote the growth of grass, and be applied in urban greening, then that can avoid the heavy metals and harmful material entering the food chain. That the sludge fertilizer exploited in desert soil can improve the sand soil nutrient effectively and amend the poor physical and chemical properties of desert soil. Therefore, the entire achievement can be used to strengthen wind prevention and sand fixation and treat desert land.