Metcalf & Eddy publish American Sewerage Practice – 99.3% of the population in cities of 100,000 or more use dilution as the only “treatment” of sewage. The remaining 0.7% of the population uses irrigation.
Metcalf & Eddy publish American Sewerage Practice – 99.3% of the population in cities of 100,000 or more use dilution as the only “treatment” of sewage. The remaining 0.7% of the population uses irrigation.
01
August
2021
