| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be456a3aba7ca73fa8a68ecd0708c417 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02W30-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-145 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05F17-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C05F11-00 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05F11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C05F17-02 |
| filingDate |
1977-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1979-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6416ff50643d8e665c05d085e2a96ca6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1614b9464c215dd64c7aaaf22d77ceb1 |
| publicationDate |
1979-01-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4135907-A |
| titleOfInvention |
Pulp tree bark treatment |
| abstract |
Bulk tree bark removed as a preparatory procedure to pulping wood for use in the paper industry is converted into a useful humus by-product through the use of a system and method wherein the bark is delivered to a receiving station in an aerobicly untreated state. This material then is adjusted to optimize the nitrogen content thereof through the addition of nitrogenous material. Additionally the pH level thereof as well as the moisture level is optimized through the utilization of a mixing arrangement which agitates and retains the materials over a predetermined time interval. The material then is transferred to a digester apparatus where it undergoes aerobic thermophilic phase digestion under the influence of induced atmospheric air and agitation. Two digester arrangements are described. Following thermophilic digestion to derive a relatively low biochemical oxygen demand value for the material, it is removed to a curing region where, under environmental atmospheric conditions, is retained for an interval sufficient to effect a mesophilic phase digestion. Following this curing procedure, the material is transferred to a receiving station for disposition as a valuable by-product. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0104355-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2729366-C1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-3235452-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4230676-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2011097058-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004053408-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6560895-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AT-379373-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4767440-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2246566-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2246566-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8757388-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5248612-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6766592-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2011186481-A1 |
| priorityDate |
1977-05-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |