http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-108660475-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E50-30 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F3-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B9-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-18 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B9-19 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B5-00 |
| filingDate | 2018-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-108660475-B |
| titleOfInvention | Method for recovering phosphorus from sewage by bioelectrochemical struvite crystallization |
| abstract | The invention discloses a method for recovering phosphorus from sewage by bioelectrochemical struvite crystallization. Aiming at the problems of anode liquor acidification, large overpotential, high magnesium source cost and the like in the existing bioelectrochemistry struvite crystallization recovery of sewage phosphorus, the invention prevents the anode liquor from acidification by utilizing the acidolysis of cheap magnesium ore in the anode liquor, and obviously reduces the overpotential and the magnesium source cost. The method is based on the condition that an anolyte is acidified and a catholyte is alkalized by electrode reaction of a double-chamber microbial electrolytic cell under extremely low external voltage (0.3-1.2V), and crushed magnesium ore is added into an anode chamber to prevent the anolyte from being acidified, stabilize the pH of the anolyte and promote microorganisms to continuously degrade organic matters to generate electricity; magnesium ions released by acid hydrolysis of the magnesian minerals migrate to the cathode through a cation exchange membrane under the drive of electric field force and are subjected to crystallization reaction with ammonium radicals and phosphate radicals in sewage in the cathode chamber under an alkaline condition to form struvite sediment, the pH value of catholyte is stabilized, and the purpose of simultaneously removing and recovering phosphorus in sewage is achieved. |
| priorityDate | 2018-04-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 52.