biosolids
Processed wastewater residue
Biosolids is a technical term for treated sewage sludge—the solid material remaining after wastewater processing.
The term emerged as a more palatable alternative to "sewage sludge" when discussing agricultural applications: The municipality approved biosolids for use as fertilizer.
Proponents emphasize nutrient content; critics worry about contaminants.
Soil nutrient supplement
- soil amendmentSubstance improving dirt quality
- compostDecayed organic fertilizer
- topdressingSurface-applied soil amendment
- spreadingExtending over space
injection · incorporation · agricultural use · reclamation · forestry · landscaping
Liquid refuse in drains
- sludgeSemi-solid waste material
- wastewaterContaminated drainage from buildings
- effluentDischarged liquid waste
- municipal wasteCommunity-generated garbage
dewatering · digestion · anaerobic · sanitation · septic · processing · stabilization · human waste
Element seven, colorless gas
- phosphorusGlow-in-dark element
- potassiumNineteenth element, symbol K
- micronutrientsVital substances needed minimally
- organic matterMaterial from living sources
humus · NPK · plant food · enrichment · trace elements · carbon · soil fertility · crop yield
Reprocessing used materials
- circular economyRegenerative resource management model
- renewableCapable of restoration
- carbon sequestrationRemoving and storing atmospheric CO2
- environmental stewardshipResponsible management of nature
Disease-causing microorganisms
- heavy metalsDense metallic environmental contaminants
- contaminantsUnwelcome substances in something pure
- regulationsEnforced rules and standards
- EPAFederal environmental regulator
Class A · testing · monitoring · pollutants · risk assessment · public health · compliance
fertilizer
Soil nutrient supplement
- soil amendmentSubstance improving dirt quality
- compostDecayed organic fertilizer
- topdressingSurface-applied soil amendment
spreading · injection · incorporation · agricultural use · reclamation · forestry · landscaping
sewage
Liquid refuse in drains
- sludgeSemi-solid waste material
- wastewaterContaminated drainage from buildings
- effluentDischarged liquid waste
municipal waste · dewatering · digestion · anaerobic · sanitation · septic · processing · stabilization · human waste
nitrogen
Element seven, colorless gas
- phosphorusGlow-in-dark element
- potassiumNineteenth element, symbol K
- micronutrientsVital substances needed minimally
organic matter · humus · NPK · plant food · enrichment · trace elements · carbon · soil fertility · crop yield
recycling
Reprocessing used materials
- circular economyRegenerative resource management model
- renewableCapable of restoration
- carbon sequestrationRemoving and storing atmospheric CO2
pathogens
Disease-causing microorganisms
- heavy metalsDense metallic environmental contaminants
- contaminantsUnwelcome substances in something pure
- regulationsEnforced rules and standards
EPA · Class A · testing · monitoring · pollutants · risk assessment · public health · compliance
- wastetrash, garbage, rubbish, refuse, debris
- fertilizersnitrogen, fertilizer, phosphorus, potassium, ammonia
- wastewaterwastewater, sewage, sewage treatment, effluent, raw sewage
- water pollutionsewage, industrial waste, contaminants, algal bloom, toxic waste
- biotreatmentaeration, biofilter, bioreactor, wastewater treatment, nitrification
- sludge treatmentsludge, dewatering, digestion, thickening, stabilization
biosolidssynthetic fertilizer
Chemically produced crop nutrients
chemical fertilizer · hazardous waste · toxic waste · landfill waste · industrial pollutants
biosolidstoxic waste
Dangerous industrial refuse
hazardous waste · pollutants · contaminants · industrial waste
solid, biology, biography, bio, solidify, antibiotic, solids, biological, biopsy