Oxidation ditch

https://www.wikidata.org/wiki/Q815353

Field Hierarchy

Parent
Biology 36M papers	Chemistry 28.9M papers	Engineering 25M papers	Organic chemistry 12.9M papers
Environmental science 8.8M papers	Ecology 8.1M papers	Waste management 1.6M papers	Environmental engineering 971k papers
Wastewater 242k papers		Sewage treatment 118k papers
Current
Oxidation ditch 787 papers
Child

Trends

Notes

History