Dried sewage sludge could be recycled by adding it to cement to make concrete, researchers in Malaysia have discovered.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/sewage-sludge-cement-can-make-concrete
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/science-world-report
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/science-and-technology
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sewage
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cement