| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C22B3-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-70
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B3-44 |
| filingDate |
2015-09-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2019-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_928d0d1a9e450a2b10bb03a63b67ec69
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a954a3ccba4065cb1c5cee4325ca982
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_101c5b7efbde65f3e6cb856d39a06321
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d0feb9389046cb28b9627b730055545 |
| publicationDate |
2019-01-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
AU-2015377617-B2 |
| titleOfInvention |
Chromium-containing water treatment method |
| abstract |
The present invention provides a chromium-containing water treatment method that allows treatment of water that contains chromium (chromium-containing water) at low cost. A chromium-containing water treatment method according to the present invention comprises: a reduction step in which chromium-containing water 11 and a liquid 12 containing 5-50 ppm of hydrogen sulfide are mixed, and the mixture is adjusted to pH 3.5 or lower and ORP 200-400 mV by adding an acid 13 thereto, so as to reduce chromium contained in the water; and a precipitation separation step in which a neutralizing agent is added to a solution 11' obtained via the reduction step so as to adjust the solution 11' to pH 8-9, thereby precipitating and separating, as a hydroxide, the reduced chromium contained in the solution. |
| priorityDate |
2015-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |