| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-22 |
| 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/C22B3-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-70 |
| filingDate |
2015-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a954a3ccba4065cb1c5cee4325ca982
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d0feb9389046cb28b9627b730055545
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_101c5b7efbde65f3e6cb856d39a06321
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_928d0d1a9e450a2b10bb03a63b67ec69 |
| publicationDate |
2016-07-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2016129867-A |
| titleOfInvention |
Chromium-containing water treatment method |
| abstract |
Provided is a method for treating chromium-containing water, which can treat water containing chromium (chromium-containing water) at low cost. A method for treating chromium-containing water according to the present invention comprises mixing chromium-containing water 11 with liquid 12 containing 5 ppm to 50 ppm of hydrogen sulfide, and adding acid 13 to a pH of 3.5 or less, and Included in the solution by adjusting the ORP to 200 mV to 400 mV and adjusting the pH to 8-9 by adding a neutralizing agent to the solution 11 ′ obtained through the reduction step of reducing chromium contained in the water and the reduction step And a precipitation separation step of precipitating and reducing the reduced chromium as a hydroxide. [Selection] Figure 1 |
| priorityDate |
2015-01-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |