http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2011125764-A1
Outgoing Links
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|---|---|
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D65-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-76 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 |
| filingDate | 2011-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2013-07-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2011125764-A1 |
| titleOfInvention | Reverse osmosis membrane treatment method |
| abstract | A method for efficiently treating RO water containing contaminated substances by removing the pollutants by a simple mechanism and simple operation and making them biologically inactive to prevent contamination and deterioration of the RO film. Propose. A part of the cooling water is drawn out from the cooling water system 1 to the water tank 11 to be treated, and an aqueous solution of a combined chlorine agent is added. In the pretreatment step 10, the water to be treated is condensed in the presence of free chlorine in the aggregation tank 12, the filtration tank 13, Supply to activated carbon treatment tank 14 to perform coagulation treatment, solid-liquid separation, and activated carbon treatment so that the total chlorine concentration of pretreated water is 3 to 10 mg / L and the free chlorine concentration is 0.2 to 10 mg / L. In the membrane separation step 20, a reducing agent such as sodium hydrogen sulfite is added before introducing the pretreated water into the pretreated water tank 21, so that the total chlorine concentration and the free chlorine concentration contained in the pretreated water become zero. Then, the combined chlorine agent is added to the pretreatment water tank 21, the total chlorine concentration of the pretreatment water is adjusted to 1 to 5 mg / L, the free chlorine concentration is adjusted to 0.1 mg / L or less, and the RO membrane 24 is used for treatment. |
| priorityDate | 2010-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 99.