METHOD FOR REMOVING SELENIUM AND APPARATUS FOR REMOVING SELENIUM

본 발명에 따른 셀레늄 제거 방법은, 셀레늄을 포함하는 연료를 환원 분위기에서 가스화시키는 설비의 배수에 산화제를 첨가하여, 셀레늄을 산화시켜서 당해 셀레늄의 가수를 변화시키는 가수 변화 공정과, 배수에 응집제를 첨가하여, 가수 변경 공정에서 가수를 변화시킨 셀레늄을 포함하는 응집물을 형성시키고, 당해 응집물을 고액 분리하는 고액 분리 공정을 포함한다. A method for removing selenium according to the present invention comprises: a valence change step of...

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Bibliographische Detailangaben
Hauptverfasser:	OKINO SUSUMU, ITO TETSUYA, NISHIDA MORIKATA, NAKAMURA HIROYUKI, KAMIMURA KAZUHIDE
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CARBURETTING AIR OR OTHER GASES CHEMISTRY FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LUBRICANTS METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	본 발명에 따른 셀레늄 제거 방법은, 셀레늄을 포함하는 연료를 환원 분위기에서 가스화시키는 설비의 배수에 산화제를 첨가하여, 셀레늄을 산화시켜서 당해 셀레늄의 가수를 변화시키는 가수 변화 공정과, 배수에 응집제를 첨가하여, 가수 변경 공정에서 가수를 변화시킨 셀레늄을 포함하는 응집물을 형성시키고, 당해 응집물을 고액 분리하는 고액 분리 공정을 포함한다. A method for removing selenium according to the present invention comprises: a valence change step of adding an oxidant to a wastewater from a facility that gasifies a fuel containing selenium in a reducing atmosphere, and oxidizing the selenium to change the valence of the selenium, and a solid-liquid separation step of adding a flocculant to the wastewater, forming a floc containing the selenium for which the valence has been changed in the valence change step, and subjecting the floc to solid-liquid separation.