| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_989ecca69fc47fadd546bf9a0db59629 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-206
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-203
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-463 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-76
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-463 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-76
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/C02F1-463 |
| filingDate |
2014-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_be70b1035563cf7a9ccaaeb54c6989e2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75ff846be3184180ae558ef8a6121480 |
| publicationDate |
2021-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10934190-B2 |
| titleOfInvention |
Water treatment processes utilizing sequential addition of a base and an oxidant |
| abstract |
When treating an aqueous stream containing metal ions, the pH is often raised to remove at least a portion of the metal ions. The presence of a multiplicity of metal ions with interfering chemistries and/or varying concentrations can make the pH rise difficult to predict for a given amount of base. Accordingly, water treatment processes can comprise: providing an acidic aqueous stream comprising one or more metal ions; adding a base to the aqueous stream and increasing its pH to a first pH value; after adding the base and increasing the pH, adding an alkaline source of hypochlorous acid to the aqueous stream and further increasing its pH to a second pH value, the second pH value being about 7 or above; and removing at least a portion of the metal ions from the aqueous stream after adding the base and the alkaline source of hypochlorous acid. |
| priorityDate |
2014-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |