| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1c1fd23f2eb049c409b4d82879e65732 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F5-06 |
| filingDate |
1991-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b7cf66dca47a1275952a1fbd14a0c220 |
| publicationDate |
1993-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H0592198-A |
| titleOfInvention |
Hard water softening method |
| abstract |
(57) [Abstract] [Purpose] A method of softening hard water for softening water by treating water containing a hardness component of 100 ppm or more, which can reduce the amount of chemical injection and reduce the amount of discharged substances. It is an object of the present invention to provide a softening treatment method for hard water that enables A pH of the water is adjusted to 10 or more by adding an alkali to water containing a hardness component of 100 ppm or more, and an aggregating agent is optionally added to the water, and then immediately before entering the aggregating and precipitating step. It is characterized in that water and air (oxygen) are mixed by the gas-liquid mixing means 10. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009039667-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011036633-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11015145-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9421586-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011067732-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-20220014422-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2009112894-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011036633-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2001070987-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8459275-B2 |
| priorityDate |
1991-06-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |