Sewage sludge compost is a kind of excellent fertilizer due to its abundant nutrition and organic matter. After composting, the sewage sludge could be sold as a commodity to make profits that could be improved by adding inorganic fertilizer. So land application has become one of the best ways for sewage sludge, especially for the developing countries with limited cultivated lands, expanding land application of sewage sludge is very essential with the precondition of resolution of pathogen, vector, and heavy...