http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102583951-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ac31afbea1cbbb03498644721ffb4a62 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F11-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C02F1-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01F7-00 |
| filingDate | 2012-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd4a7da1871fc582a467fa9bdde1771b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_512adb76306daf82faef049b1b98f10f |
| publicationDate | 2013-06-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102583951-B |
| titleOfInvention | Acid lixiviation based recycling treatment method of aluminum circulating coagulation sludge |
| abstract | The invention provides an acid lixiviation based recycling treatment method of aluminum circulating coagulation sludge. The method is characterized by comprising the following steps of: dehydrating sludge to reduce water content of the aluminum circulating coagulation sludge to be lower than 80%; drying and baking; carrying out acidifying treatment: adding mixture of water and acid to adjust pH value of sludge slurry to 3, controlling reaction temperature to be 38 DEG C and agitating sludge and acid in mixed liquid so that the sludge and the acid sufficiently contacts; separating and purifying; and finally, filtering, evaporating and crystallizing to obtain crystal aluminum salt with a flocculation effect. According to the acid lixiviation based recycling treatment method of the aluminum circulating coagulation sludge, a large part of water and aluminum in the sludge is converted into a flocculating agent and impurities are further removed by separating to purify the flocculating agent, thereby improving the recycling of an aluminum salt flocculating agent, greatly reducing sludge disposal cost and further reducing COD (Chemical Oxygen Demand), pH value, residual organic matters and chromaticity of the sludge wastewater; and therefore, the aim of recycling is realized, the subsequence biochemical treatment is easy to implement and the damage of wastewater discharging to the environment is reduced. |
| priorityDate | 2012-02-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 34.