Sewage--Purification--Biological treatment
URI(s)
Components
Biological treatment 
Variants
Broader Terms
Narrower Terms
Closely Matching Concepts from Other Schemes
Broader Concepts from Other Schemes
Sources
found: Biological nutrient removal (BNR) operation in wastewater treatment plants, c2006:glossary (biological nutrient removal, the reduction in nitrogen or phosphorus compounds concentration using microorganisms)
LC Classification
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
2006-03-10: new
2006-04-25: revised
Alternate Formats
