http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109607852-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-026 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-725 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-722 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2018-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109607852-B |
| titleOfInvention | Method for removing organic phosphorus in flame-retardant cloth production wastewater through oxidative coagulation |
| abstract | The invention discloses a method for removing organic phosphorus in flame-retardant cloth production wastewater by oxidative coagulation, which comprises the following steps: s1, adding acid into the wastewater containing organic phosphorus to adjust the pH value to 2-4, then adding ferrous sulfate, and stirring and reacting for 1-3 hours to obtain primary reaction wastewater; s2, carrying out catalytic ozonation on the primary reaction wastewater obtained in the step S1 in the presence of a catalyst, and reacting for 1-2 hours to obtain intermediate reaction wastewater; s3, adding an oxidizing chemical agent into the middle-stage reaction wastewater obtained in the S2, reacting for 1-2 hours, adjusting the pH value to 8-9, and coagulating to obtain coagulation wastewater; s4, precipitating the coagulated wastewater obtained in the S3 to obtain phosphorus-containing sludge and wastewater, and then separating the phosphorus-containing sludge from the wastewater. The invention utilizes the process of 'multi-stage oxidation + coagulating sedimentation' to oxidize organic phosphorus into inorganic phosphorus, and then reduces the total phosphorus content in the wastewater by a coagulating sedimentation method. |
| priorityDate | 2018-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 73.