DISPOSAL OF DESALINATION CONCENTRATE WITH PRESSURIZED MIXING OF CARBON DIOXIDE GAS

• Main Authors: KYUNG SUN SONG, SEUNG WOO LEE, JUN HWAN BANG, SOO CHUN CHAE
• Format: Patent
• Language: English; Korean
• Published: 24.03.2023
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

A method for treating a seawater concentrate by using a pressurized mixing reaction of carbon dioxide according to the present invention comprises a step of subjecting metal cations and carbon dioxide in the seawater concentrate to a pressurized mixing reaction to generate carbonate, wherein it is preferable that the carbon dioxide is obtained by converting 15% concentration of carbon dioxide discharged from industrial facilities into microbubbles and that the seawater concentrate is seawater desalination wastewater and sea salt or refined salt production wastewater. In addition, the metal cations in the seawater concentrate include at least one of Ca^2+, Mg^2+, Li^+, and Sr^2+. Accordingly, carbon dioxide discharged by industrial facilities can be safely treated without harming the environment. 본 발명에 따른 이산화탄소의 가압 혼합 반응을 이용한 농축 해수 처리 방법은 농축 해수 내의 금속 양이온과 이산화탄소를 가압 혼합 반응시켜 탄산염을 생성하는 단계;를 포함하며, 이때 이산화탄소는 산업 시설에서 배출되는 15 % 농도 이산화탄소를 미세 기포환 것이 바람직하다. 이때, 농축 해수는 해수 담수화 폐수, 천일염 또는 정제염 생산 폐수인 것이 바람직하다. 또한, 농축 해수 내의 금속 양이온은 Ca2+, Mg2+, Li+, 및 Sr2+ 중 적어도 하나 이상을 포함한다.