http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107500432-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-725 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-30 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2017-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107500432-B |
| titleOfInvention | Coagulation and bleaching powder catalytic oxidation combined treatment method for refractory industrial wastewater |
| abstract | The invention relates to a coagulation and bleaching powder catalytic oxidation combined treatment method of refractory industrial wastewater, which comprises the following steps: step S1: adding industrial wastewater from a printing and dyeing mill, a flocculating agent and a coagulant aid into a reactor, controlling the pH of reaction liquid to be 5-10, stirring and standing at room temperature, and separating supernatant liquor; step S2: adding bleaching powder and magnesium salt catalyst into the separated clear liquid, controlling the pH of the reaction liquid to be 5-9, stirring at room temperature, and completing the coagulation and catalytic oxidation treatment processes. The invention adds bleaching powder and magnesium salt catalyst into the refractory industrial wastewater after coagulation treatment, generates nascent state oxygen atoms at normal temperature and normal pressure, generates hydroxyl free radicals by reacting with water, deeply oxidizes the non-biodegradable colored toxic pollutants by utilizing the strong oxidizing property of the hydroxyl free radicals, wherein the adopted magnesium salt catalyst is cheap, green and environment-friendly, does not need to be recycled and regenerated, and can improve the oxidation decoloration rate of the bleaching powder and the oxidation index for removing COD manyfold. |
| priorityDate | 2017-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.