Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co LtdfiledCriticalNEC Corp
Priority to JP4614375ApriorityCriticalpatent/JPS51121956A/en
Publication of JPS51121956ApublicationCriticalpatent/JPS51121956A/en
PURPOSE: To provide a method, by which precipitates readily capable of separation by filtering are produced in the purifying treatment of ferric salt waste liquid containing heavy metals by making use of hydroxide precipitation reactions.
COPYRIGHT: (C)1976,JPO&Japio
JP4614375A1975-04-161975-04-16Method of treating ferric salt waste liquid containing heavy metals
PendingJPS51121956A
(en)
Method of purifying waste liquid produced from photographic treatment using sulfur bacteria and method of recoveryof silver from waste liquid of photographic treatment