http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013119080-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d190881d8107c22941489e4161263769 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-12 |
| filingDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e1b75d42092722b05c0b2240e76b0650 |
| publicationDate | 2013-06-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2013119080-A |
| titleOfInvention | Method and apparatus for treating phosphorus-containing wastewater |
| abstract | A wastewater treatment method and a wastewater treatment apparatus for efficiently recovering phosphorus from sludge after phosphorus release treatment. The method for treating phosphorus-containing wastewater according to the present invention comprises a biological treatment step for at least aerobic treatment of phosphorus-containing wastewater, and surplus sludge obtained by the biological treatment step is retained under anaerobic conditions. A phosphorus releasing step for releasing phosphorus; a concentration step for concentrating excess sludge after the phosphorus releasing step by solid-liquid separation; and a digestion step for digesting the concentrated sludge after the concentration step in a digestion tank. The excess sludge after the digestion step is washed with washing water, and by adding a phosphorus recovery agent to the washing waste water, phosphorus contained in the excess sludge is precipitated and recovered as phosphate, and the excess sludge after washing is recovered. Is characterized by adding a flocculant, followed by solid-liquid separation, and discarding the excess sludge after washing as a dehydrated cake. [Selection] Figure 1 |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7169067-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2019118866-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2020054984-A |
| priorityDate | 2011-12-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.