http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113772848-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_44eada7e13e52fe7a7beec9abfc19197 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2001-007 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-288 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2101-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5236 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F101-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2021-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b133fcbb91cbd65116e4c93d466309c7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34d6b49d633d3829823abf675a093ce9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3214113de681a6b0f5f846c5e2ec892b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c90ad92629a7edbc4a35ad4c8f288328 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b57bbbd5427b3f345ea2e8aa77a9e5c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3caf75d4cb7235b1ec6cf7a0f87733c9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2308db60f828e7ce3f15619e17c47a43 |
| publicationDate | 2021-12-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113772848-A |
| titleOfInvention | A kind of method for treating acid high fluorine waste water with fly ash |
| abstract | The present invention relates to a method for treating acidic high-fluorine wastewater with fly ash. In the first reaction tank, the fly ash is used to treat the acidic high-fluorine wastewater to form high-purity fluorine-containing sludge. The supernatant liquid flows into the second reaction tank, and aluminum hydroxide colloid is used to continue to remove residual fluoride ions, and then a coagulant aid is added to accelerate the precipitation to form a lower-purity fluorine-containing sludge, so that the fluoride ion in the effluent is less than 10mg/L, which is in line with the national standard. Emission Standards. The fluorine-containing sludge is separated from wet and dry, the waste water flows into the second reaction tank, and the dried sludge is converted into sodium hexafluorosilicate product after drying. The advantages of the invention are: using fly ash to treat waste with waste, quickly and effectively defluoride the acid high fluoride waste water to make it discharge up to the standard, and recycle the fluorine-containing sludge, which has certain environmental protection and economic value. The method is suitable for the treatment of acidic high-fluorine wastewater, shortens the treatment process, reduces the treatment cost, and solves the problems of secondary pollution of fluoride sludge. |
| priorityDate | 2021-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.