NASA STI Repository (National Aeronautics and Space Administration) · 1976 · 14 citations · 0 references
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EngineeringEnvironmental SciencesWeed ScienceWastewater ReuseWastewater TreatmentWater TreatmentNutrient RemovalSecondary TreatmentTertiary TreatmentWaste TreatmentWater PollutionWater QualityFiltration SystemsSewage SystemsTotal Kjeldahl NitrogenTotal Organic CarbonTotal PhosphorusTotal Suspended Solids ReductionWastewater Treatment Nutrient RemovalWater Filtration Systems
The potential of water hyacinths (Eichhornia crassipes) (Mart.) Solms and alligator weeds (Alternanthera philoxerides) (Mart.) Griesb. as secondary and tertiary filtration systems for domestic sewage was demonstrated. These two vascular aquatic plants reduced the suspended solids, total Kjeldahl nitrogen, total phosphorus, BOD sub 5, and total organic carbon levels in domestic sewage from 60 percent to 98 percent within a two week period. These plants grown in domestic sewage were also free of toxic levels of trace heavy metals.