http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-950008374-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F2103-16 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C02F1-66 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-58 |
| filingDate | 1993-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1995-04-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-950008374-A |
| titleOfInvention | Wastewater Treatment Method from Cold Rolling Mill |
| abstract | The present invention relates to a method for treating wastewater generated in a cold rolling mill, by equalizing wastewater by mixing acid-heavy metal-containing wastewater with mixed wastewater in which oil-containing wastes, alkali-containing wastewater, demineralization wastewater and organic matter-containing wastewater are mixed. In addition to reducing the amount of sulfuric acid and slaked lime, as well as stabilizing thiocyan ions contained in the mixed wastewater COD and dehydration wastewater before entering the aeration tank, it is intended to provide a method for effectively and stably handling contaminants by the aeration tank. The purpose is.n n n The present invention provides a method for treating wastewater generated in a cold iron mill, comprising the steps of: sufficiently mixing an oil-containing wastewater, an alkali-containing wastewater, a dehydration wastewater and an organic matter-containing wastewater; Mixing acid heavy metal-containing wastewater in these mixed wastewater so as to adjust the thiocyanate concentration in the mixed wastewater to 300 mg / l or less; Neutralizing the pH of the wastewater to 6.5-8.0 by adding sulfuric acid to the thiocyanate adjusted wastewater; Removing oil and suspended solids by adding a flocculant to the neutralized wastewater; And oxidizing, absorbing, and adsorbing wastewater from which oil and suspended solids have been removed by microorganisms in an aeration tank. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19990008596-A |
| priorityDate | 1993-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.