http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105817143-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2321-162 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2321-168 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2321-2041 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D65-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D65-06 |
| filingDate | 2016-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-11-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105817143-B |
| titleOfInvention | A kind of cleaning method of ultrafiltration membrane surface iron colloid |
| abstract | The invention proposes a kind of cleaning methods of ultrafiltration membrane surface iron colloid.This method mainly includes the following steps that：A certain amount of sodium hydrogensulfite is dissolved in the dilute hydrochloric acid solution of 1000 ppm, is sufficiently stirred and is placed on shady place and saves backup；It will be placed in ultrafiltration cup by the ultrafiltration membrane of iron colloid pollution, configured cleaning agent, stirring and washing be added.Chemical reagent used in this method is cheap and easy to get, and cleaning is at low cost, simultaneously effective solves the film surface iron colloid problem that can not be cleaned using conventional chemical cleaning means at present.This method does not use strong acid and strong base, and diluted acid and pH is used to reach the cleaning effect of iron colloid under the premise of not destroying ultrafiltration membrane close to neutral sodium hydrogensulfite.It is suitable for being used as the cleaning method of ultrafiltration membrane surface colloid. |
| priorityDate | 2016-05-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.