http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109133258-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-001 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-74 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-72 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-30 |
| filingDate | 2018-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109133258-B |
| titleOfInvention | Printing and dyeing wastewater treatment process |
| abstract | The invention belongs to the technical field of sewage treatment, and particularly relates to a printing and dyeing wastewater treatment process, which comprises the following steps: introducing the printing and dyeing wastewater into a pH value regulating tank, and regulating the pH value of the wastewater to 6-7; the effluent of the regulating reservoir is connected into a photocatalytic oxidation device to decompose organic matters in the wastewater; the effluent of the photocatalytic oxidation device is connected into a hydrolytic acidification tank, and the hydraulic retention time is 2-3 h; the water discharged from the hydrolysis acidification tank is connected into an activated sludge tank for treatment, and decolorization bacteria and PVA degrading bacteria are connected into the tank for reaction for 3-5 h; and (3) introducing the sewage subjected to the activity treatment into a filtering tank, filtering the solid precipitate through the filtering tank, and discharging the effluent. The invention improves the efficiency of catalytic oxidative decomposition, and the treated water quality is easier to reach the standard, and has the characteristics of low cost and high efficiency. |
| priorityDate | 2018-09-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 32.