http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113307350-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2305-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2209-06 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-72 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F103-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-72 |
| filingDate | 2021-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-06-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113307350-B |
| titleOfInvention | Advanced oxidation process for rapidly precipitating heavy metals and efficiently removing COD (chemical oxygen demand) in electroplating wastewater |
| abstract | The invention discloses an advanced oxidation process for rapidly precipitating heavy metals and efficiently removing COD (chemical oxygen demand) in electroplating wastewater, which comprises the steps of adding a proper amount of sodium percarbonate into the electroplating wastewater containing the heavy metals, and stirring and dissolving; then introducing ozone into the mixed solution, generating oxidizing active species hydroxyl free radicals and carbonate free radicals by an ozone-sodium percarbonate advanced oxidation method, so as to realize rapid complex breaking of metal complexes in the wastewater, and generating insoluble carbonate precipitates by reacting generated free metal ions with carbonate, so as to realize rapid removal of the metal ions in the wastewater; meanwhile, the organic ligand in the wastewater is rapidly mineralized and decomposed under the action of high-activity free radical oxidation; and (3) carrying out solid-liquid separation on the reaction solution by using a microporous membrane device. Compared with the traditional advanced oxidation coupling alkaline precipitation method, the method can realize the high-efficiency complex breaking of the heavy metal complex in the electroplating wastewater and the synchronous removal of the heavy metal ions, and has the advantages of economy, high efficiency, simple and convenient operation, wide pH application range, easy realization of engineering application and the like. |
| priorityDate | 2021-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 59.