http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100712657-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A62D3-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B09C1-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B09C1-02 |
| filingDate | 2004-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2007-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2007-05-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-100712657-B1 |
| titleOfInvention | How to wash heavy metal contaminated soil |
| abstract | The present invention is a method for washing heavy metal contaminated soil, at least one step of washing the heavy metal contaminated soil using a 0.2 ~ 1M sodium hydroxide or 0.2 ~ 1M hydrochloric acid or 0.01 ~ 1M concentration of citric acid as a washing solution. It provides a method for washing heavy metal contaminated soil, characterized in that performed. In addition, the washing step may be such that the pH of the washing effluent is 4 to 13 after washing so that heavy metals are aggregated or adsorbed in the flocks with respect to the soil in which the flocks are formed, and in this case, the washing is performed so that the arsenic aggregates or adsorbs More preferably, the pH of the effluent is set to 5-6. In addition, the washing step is preferably removed after washing the floc formed in each washing step once or two or more times with respect to the soil in which the floc is formed during washing. In addition, the method may be, for example, diatomaceous earth in which pores attached to the pores or surfaces of ions such as iron, aluminum, lanthanum, or noble metals, which serve as a functional group for the washing effluent, which have undergone the flocculation or adsorption, precipitation and removal, are nano-sized It is preferable to adsorb using a porous medium such as, and further comprising the step of adsorbing the groundwater in the vicinity of heavy metal contaminated soil with the porous medium together with or separately from the soil washing.n n n According to the method for cleaning heavy metal contaminated soil according to the present invention, the removal effect of heavy metals such as arsenic, copper and lead, especially contained in the soil, is excellent, and further satisfies the economics. In addition, in the present invention, particularly by using a nano-porous medium, heavy metal contaminated soil and heavy metals in heavy metal contaminated groundwater surrounding heavy metal contaminated soil can be treated with excellent efficiency.n n n n Heavy metal contaminated soil, flushing effluent, sodium hydroxide, citric acid, washing concentration, time, shaking ratio, continuous washing, coprecipitation, pH, flocculation |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-111036661-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101290239-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101274548-B1 |
| priorityDate | 2004-12-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.