| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_88fbcd2a70a3c49d0aed69a000d55909 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S210-911
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-1231 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C12N1-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-12 |
| filingDate |
1974-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1975-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5a9e82553da83f5a3a59aeada0c53df
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_abe79420ea97faba2c3bfaec1cc250bf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d574f4591be733445de21273a7ede32e |
| publicationDate |
1975-12-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3926796-A |
| titleOfInvention |
Preparation of activated sludge and treatment of waste water therewith |
| abstract |
Preparation of an activated sludge capable of assimilating polyvinyl alcohol resins included in waste water by subjecting an ordinary activated sludge to acclimation in an aqueous solution in the presence of specific amount of polyvinyl alcohol resins and a specific kind of nutrients. In acclimation, the amount of the polyvinyl alcohol resins is increased stepwise from less amount to more amount every 85 % or more drop of the chemical oxygen demand of the aqueous solution. The acclimation can be completed in such a short period as 4 to 20 days. The waste water effluent including polyvinyl alcohol resins can be treated by passing through said activated sludge with a high efficiency. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4133752-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4331539-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5275734-A |
| priorityDate |
1973-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |