Effects of Sewage Sludge Compost Application on Abandoned Mine

Composted sewage sludge can be applied to land to improve soil physical properties and supply nutrients. In this study we use the case of sewage sludge compost applied to the abandon mine located in the Taoyuan Village of Mentougou District of Beijing to supply and illustrate that a new way to improve the mine restoration soil which also could have serviceability to deal with the city sludge. Experimental results showed sewage sludge compost application produced positive effects on the nutrient contents of soil and increased with increasing fertilizing amount. Considering the heavy metals accumulation in mine soil and there availability for crops, the Zn and Hg should be played more attention on the sewage sludge compost application in abandoned mine.