| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_da54f7ebbd2d9d8a82f92aca4d1b4e48 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-302
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-006 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-30
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-00 |
| filingDate |
1990-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6cb8a6a30165f5988344a8f45140f4e4 |
| publicationDate |
1991-08-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
DE-4004476-A1 |
| titleOfInvention |
METHOD FOR THE BIOLOGICAL PURIFICATION OF SEWAGE |
| abstract |
In the biological purificn. of waste water with low-to-high concns. of organic matter and total N, in which the water is aerated or loaded with O2 in 2 stages, a partial stream of the waste water/activated sludge mixt. from the 2nd stage is recycled to the 1st stage, and the waste water/activated sludge from the 2nd stage is sepd. in a settling tank to which the settled activated sludge from the 1st stage is fed, and the purified water is withdrawn, a predetermd. redox potential is not exceeded in the aeration or the O2-loading in the 1st stage. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102020106761-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-4237387-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-410439-B |
| priorityDate |
1990-02-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |