http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106396163-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2015-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-06-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-106396163-B |
| titleOfInvention | A kind of method of rare-earth smelting amine wastewater of sulphuric acid comprehensive treatment reuse |
| abstract | The invention discloses a kind of methods of rare-earth smelting amine wastewater of sulphuric acid comprehensive treatment reuse, belong to environmental technology field.The present invention removes calcium, magnesium, iron, aluminium ion, and be passed through carbon dioxide gas and further remove calcium ion by adding in neutralizer to rare-earth smelting ammonium sulfate waste water；Gained clarified solution enters steam stripping ammonia-removing tower, and distillation removes the ammonia nitrogen in clarified solution and recycles the weak aqua ammonia that condensation obtains；With reverse osmosis membrane filtration after clarified solution adjustment pH after removal of ammonia and nitrogen, the pure water for filtering acquisition is back to production.The present invention not only overcome high rigidity, high alkalinity, high ammonia nitrogen, high salinity rare-earth smelting ammonium sulfate waste water pollution problem, simultaneously by recycling the by-products such as high purity water, weak aqua ammonia, calcium carbonate, the treatment cost of rare-earth smelting ammonium sulfate waste water is reduced, there is good Social benefit and economic benefit. |
| priorityDate | 2015-08-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.