http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2016107215-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d97cb748898aa080b013f7f35bc8b434 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-70 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-02 |
| filingDate | 2014-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_61760166ef341af129d62cb93eca356e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7fe19f78cee226965dec3c7de8c9b894 |
| publicationDate | 2016-06-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2016107215-A |
| titleOfInvention | Formaldehyde-containing wastewater treatment method |
| abstract | In the treatment of wastewater containing formaldehyde by adding sulfite, slime is prevented from being generated in the system when the operation of the apparatus is stopped. SOLUTION: After sulfite is added to formaldehyde-containing wastewater and reacted in a reaction vessel 3, the reaction solution from the reaction vessel 3 is subjected to membrane separation by a reverse osmosis membrane device 4 to obtain permeate as treated water. In the treatment method of formaldehyde-containing wastewater having a treatment process, when the wastewater treatment is stopped after the wastewater treatment process, addition of sulfite is stopped, and a disinfectant is added to the water in the system upstream of the reverse osmosis membrane device 4 Then, a sterilization step is performed in which the water to which the sterilizing agent is added is returned to the upstream side of the sulfite addition position and circulated without passing through the reverse osmosis membrane device 4 after passing through the reaction tank 3. [Selection] Figure 1c |
| priorityDate | 2014-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.