World population growth and lifestyle are the main causes of the increase in the volume of wastewater. As a result of the treatment of these waters, millions of tons of sewage sludge are generated, filling landfills and generating pollution, unpleasant odors, and public health risks. To combat these issues, one of the most important alternatives is to transform sewage sludge, which has a high organic-matter content, into a resource that can be used for agricultural purposes as a crop fertilizer.
Click here for original story, Scientists validate new technology that transforms sewage sludge into fertilizer more efficiently
Source: Phys.org