Sewage sludge

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

Field Hierarchy

Parent
Engineering 23.9M papers	Environmental science 7.7M papers	Waste management 1.5M papers	Environmental engineering 949k papers
Sewage treatment 116k papers		Sewage 58.3k papers
Current
Sewage sludge 28.3k papers
Child

Trends

Notes

History