http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4209396-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_648faebf3a6bdc87e17ced3d484d24f0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W10-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-1215 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-1242 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-00 |
| filingDate | 1975-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1980-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3c2b88bf6a7d2f197b9b2281fd177673 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dc49f87ab757683d46bd9dc21f5f8c4c |
| publicationDate | 1980-06-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-4209396-A |
| titleOfInvention | Methods for use in water purification particularly sewage treatment |
| abstract | A method and apparatus for treatment of sewage and waste materials, and while applicable to larger installations, is particularly desirable for relatively small, for example family and multi-family installations, utilizing high rate bio-chemical oxidation/physio-chemical adsorption, in which the sewage is subjected to a primary biological treatment, and a secondary settling treatment, with the primary-secondary effluent, following addition thereto of an organic-inorganic chemical material comprising prereacted floc, a phosphate precipitating material and a nonionic polyelectrolyte, operative to maintain pH and zeta potential favorable to floccuation, being subjected to a tertiary treatment by passage through a mixed filtration and adsorption bed containing activated carbon, the mixed bed being periodically regenerated by a partial wet-gas oxygenation cycle, utilizing a reflex operation in which the products of regeneration are returned to the primary treatment, and in which the final effluent may, for example, contain an average of less than 1 mg/l BOD5 and an average of less than 0.6 mg/l of suspended solids, an average of less than 0.3 mg/l phosphorus (as PO4), and with a material reduction in sludge. The invention also provides fully automatic cyclic operation and includes a novel tertiary method and structure, including regeneration thereof, as well as the chemical materials utilized and the method of use thereof. In a preferred form of the invention, the chemicals are produced as a dry homogeneous discrete material which may be readily transported and handled in dry form, and formed into an aqueous mix or slurry at time of ultimate use. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0056793-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8105490-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8721887-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007151932-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2007060783-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7563373-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012160768-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109019914-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008302723-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5180511-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7927493-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011192776-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008240175-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11130686-B2 |
| priorityDate | 1974-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 68.