http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2002307074-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_74973199515dbabd2310245aab03e282 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-46 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D21-01 |
| filingDate | 2001-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f043fb172dd783dc91289d3b50ce9a6b |
| publicationDate | 2002-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2002307074-A |
| titleOfInvention | Wastewater treatment method and wastewater treatment device |
| abstract | [57] [Problem] To cope with load fluctuation by chemically treating sludge with an inorganic acid such as hydrochloric acid or inorganic alkali such as caustic soda without increasing the sludge treatment amount with a coagulant or the like. Provided are a wastewater treatment method and a wastewater treatment device that enable high-speed treatment and can also reduce the size of the treatment device. SOLUTION: An inorganic acid is added to a wastewater treatment liquid to adjust the pH to 3 or less, and Fe 2+ , Fe 3+ , Al 3+ , Mg 2+ , Ca are extracted from a mineral-containing substance contained in the wastewater treatment liquid. Polyvalent metal ions such as 2+ , Cu 2+ , Mn 2+ , Zn 2+ , and Co 2+ are eluted, and the organic substances contained in the wastewater treatment liquid are coagulated and removed by the coagulation action of the polyvalent metal ions. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2010137177-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108560020-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007146221-A |
| priorityDate | 2001-04-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.