(under subclass 767) Process in which the stream of liquid being treated is separated into two distinct steams, which streams are later recombined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
194+, for separating apparatus with means to recirculate a constituent.
253+, for parallel flows including serially connected distinct treating units.
340+, for parallel filters with flow control means.
607, for processes of treatment by living organisms including dividing and recombining.
625, for processes of treatment by living organisms with sludge treatment outside of the mainstream and recirculation of such treated sludge to the mainstream.