Sewage sludge

https://www.wikidata.org/wiki/Q11888968

Field Hierarchy

Parent
Engineering 25M papers	Environmental science 8.8M papers	Waste management 1.6M papers	Environmental engineering 971k papers
Sewage treatment 118k papers		Sewage 60.8k papers
Current
Sewage sludge 29.6k papers
Child

Trends

Notes

History