| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-44
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/C02F2209-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-1215
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-301
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-308 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-74
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 |
1985-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1f61956484e76ef4ae4990ad615bd885
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b2f37d999e5f32c72d67b5d2dc1be6db
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a9aab98d2ba03f941c58e6aabb444e87 |
| publicationDate |
1986-07-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-8603734-A1 |
| titleOfInvention |
Nitrification/denitrification of waste material |
| abstract |
A method for treating a waste material in which the material is subjected to periods of aeration with air or other oxygen-containing gas, to bring about biological oxidation and nitrification, alternating with periods during which aeration is discontinued to allow development in the material of anaerobic conditions leading to biological denitrification of the material. Aeration is discontinued when the rate of change of dissolved oxygen concentration in the material reaches or exceeds a predetermined value, for example 0.1 to 4 mg/l hr, and resumed after the nitrate concentration in the material is reduced to a desired level, for example after 4 hours. The method preferably takes place in a single vessel (1). Waste enters via inlet (13) and exits via outlet (14); waste entry and exit are preferably continuous. Flow of air to diffuser (12) can be cut-off by means in conduit (11), such means being controlled by a signal processor which monitors the ratio of change of the dissolved oxygen levels sensed by sensor (9). Chemicals for the removal of phosphorous nutrients may be added to the waste material prior to or during the treatment. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9204284-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2685692-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102015109683-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2764089-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6024875-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-407151-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0559543-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0232217-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0232217-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0260187-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0881555-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0260187-A2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5372720-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0550367-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2687996-A1 |
| priorityDate |
1984-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |