.~ Using combined systems of sequential local and regional or municipal sewage systems
DEFINITION
Classification: 210/920
Using combined systems of sequential local and regional or municipal sewage systems:
Collection of disclosures under collection 918 wherein a generally relatively small system for treatment of sewage from a single source has an output combined with the output of similar such systems for further treatment of the combined outputs.
(1) Note. An example of the disclosures of this collection include the collecting and combining of the effluents from domestic septic systems and treating the combined effluent in an activated sludge type plant rather than using individual drain fields.
