http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7050992-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-34 |
| filingDate | 2021-07-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-7050992-B1 |
| titleOfInvention | Treatment method for wastewater containing high-concentration organic matter |
| abstract | PROBLEM TO BE SOLVED: To easily treat wastewater containing a high concentration organic substance containing a harmful nitrogen-containing compound in a simple facility. SOLUTION: This was obtained by supplying a low-concentration organic matter-containing wastewater and active sludge to an aerobic biological reaction vessel and a step of preparing a treatment apparatus, and aerobicly treating the low-concentration organic matter-containing wastewater. The process of obtaining concentrated active sludge from the treatment liquid by solid-liquid separation using a solid-liquid separation device, and the ratio of carbon content to nitrogen content of high-concentration organic matter-containing wastewater, concentrated active sludge, and nitrate nitrogen. A step of supplying an anaerobic biological reaction vessel so that the (C / N ratio) is in the range of 0.5 to 4.6 to treat organic substances and harmful nitrogen-containing compounds to obtain an anaerobic treatment liquid. , The step of supplying the aerobic treatment liquid to the aerobic biological reaction tank and decomposing the organic matter remaining in the aerobic treatment liquid to obtain the aerobic treatment liquid, and the solid-liquid separation of the aerobic treatment liquid. A treatment method including a step of obtaining treated water while recovering concentrated active sludge by supplying it to an apparatus and separating it into solid and liquid. [Selection diagram] Fig. 1 |
| priorityDate | 2021-04-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.