http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104671361-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-461 |
| filingDate | 2015-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-05-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104671361-B |
| titleOfInvention | Method for removing PPCPs micropollutants in secondary sedimentation tank wastewater |
| abstract | The invention relates to a method for removing the PPCPs micropollutants in secondary sedimentation tank wastewater. The secondary sedimentation tank wastewater is urban sewage processed through the secondary sedimentation tank of a sewage treatment plant. The method comprises the following steps: introducing the mixed gas of O2 and O3 with the O3 volume percent of 5-10% into an ozone contactor with a negative electrode and a positive electrode at the bottom part by using a bottom micropore aeration mode, and introducing a direct current on two ends of the electrode; while introducing the mixed gas, injecting the water body to be processed containing the PPCPs micropollutants into the ozone contactor, wherein the hydraulic retention time is 3-15 min; and then outputting the water body. According to the method, the application of the method in the urban sewage treatment is further protected. Compared with the traditional method, the chemical agent cannot be additionally added and the flocculated precipitation and the secondary pollution cannot be generated; the potential safety hazard does not exist because the extra electric field voltage and the electric current density are low; the method is easy for practical application; the removal rate of the typical hardly-degradable PPCPs micropollutants is more than 90%. |
| priorityDate | 2015-02-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 35.