| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fc0668fd5cbfe23cea7d9bdd5de932a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-24 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-281
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-488
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-24 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 |
| filingDate |
1990-08-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6104fdb2372404cad41a3521fcc1a0be
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47c707a3d21202c367324a7d2d674561 |
| publicationDate |
1991-03-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9102698-A1 |
| titleOfInvention |
Improved sewage treatment process |
| abstract |
A process for the treatment of sewage or other wastewater containing organic matter which comprises the steps of: (a) mixing sewage or other wastewater containing organic matter with a coagulant/adsorbent which is finely divided particulate mineral or clay material the individual particles of which have a thin hydroxylated surface layer, under conditions whereby at least a substantial proportion of the organic material in the sewage or other wastewater containing organic matter becomes attached to the coagulant/adsorbent; (b) separating the coagulant/adsorbent with attached organic material from the mixture to leave a treated liquid effluent; (c) treating the separated coagulant/adsorbent from step (b) with alkali thereby to release the organic material therefrom, separating the coagulant/adsorbent from the resultant concentrated slurry containing the organic material; and (d) adding acid to the concentrated slurry of organic material to lower the pH to less than 4 and thereby to obtain a sludge which separates under gravity and a supernatant liquid which optionally may be recycled to acidify the incoming sewage or other wastewater containing organic matter. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109025868-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1146016-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5453206-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109025868-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8986503-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011015493-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9506190-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/FR-2862959-A1 |
| priorityDate |
1989-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |