TR 17 - Land Treatment of Municipal Sewage Effluent at Hayden, Colorado, K.A. Barbarick, B.R. Sabey, and N.A. Evans, October 1977

The waste products that our society produces will require disposal or recycling techniques that minimize contamination of our environment. Among these waste products are sewage sludges and effluents. Every municipality, regardless of size must treat and dispose of or utilize its sewage in some manner. Current alternatives range from secondary treatment involving anaerobic digestion, trickling filtration, aerobic digestion to lagooning and use of polishing ponds or combinations of these. Soil filtration is being considered in many areas as a possible final treatment for effluent before it reaches a stream. For large cities, the more elaborate treatments may be more practical for handling the large volume of sewage; however, for small treatment plants utilized in rural areas, the possibility of soil filtration as part f the treatment process could be more practical. Bouwer claims that the quality improvement obtained by soil percolation is probably comparable to that obtained by coagulation, sedimentation, carbon adsorption and disinfection.