research-article | 21-July-2020
more than 50% of raw sewage contaminants. When using highly efficient biological methods of treatment, reduction in the initial number of indicator bacteria is over 99%, however, taking into account their high number in raw sewage, their elimination is definitely insufficient [3, 4, 5].
WASTEWATER AND SEWAGE SLUDGE – CHARACTERISTICS AND SANITARY PROPERTIES
Wastewater is defined as water used for domestic or economic purposes entering into water or into the ground. . The type and amount of
Architecture, Civil Engineering, Environment, Volume 13 , ISSUE 2, 57–63