http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110642426-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b8db3570d05a7f560bbd8c703fc2daba |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-5245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F9-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F9-04 |
| filingDate | 2019-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6a8500446f37579ecec6fb9e96b5a568 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ac88854fdef6acd0e3820b49f76ff13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_691e39658011d2d37175fafe84bdf52a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6677d94bdeb84c8cb413f8c39b7d2005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2dd543070e6edcebccf35e463d3df602 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_43240c1e89626f449fded225408d369f |
| publicationDate | 2020-01-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110642426-A |
| titleOfInvention | A kind of method for efficient treatment of RO concentrated water |
| abstract | The invention discloses a method for efficiently treating RO concentrated water, comprising the following steps: adding a strong acid solution α to the RO concentrated water to adjust the pH of the RO concentrated water to 2-4; adding calcium oxide or/and calcium hydroxide to the RO concentrated water , and stir; add strong alkali to RO concentrated water and stir to adjust the pH of RO concentrated water to 10-14; add strong oxide to RO concentrated water; stir RO concentrated water, and add strong acid solution β to adjust RO concentrated water The pH of the water is 6-9 to dissolve some of the precipitate. The invention treats concentrated water after water reuse in industrial reverse osmosis (RO) in papermaking, printing and dyeing, industrial parks, etc., so that COD is less than 50 mg/L, decolorization and phosphorus removal. After the RO concentrated water is treated with ozone, the sediment is less. The main agents used are less calcium oxide and calcium hydroxide, rather than blindly dosing, thereby further reducing the amount of sediment. |
| priorityDate | 2019-10-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.