SUS 전극을 이용한 폐SCF의 유기물 처리 (Treatment of Organic Matter Wasted Soluble Cutting Fluids (SCF) by using Stainless Electrode)

서지정보

· 발행기관 : 한국폐기물자원순환학회
· 수록지 정보 : 한국폐기물자원순환학회지 / 34권 / 8호 / 761 ~ 767페이지
· 저자명 : 장성호, 김고은, 배종명, 이병인, 시바쿠마르, 정은상, 이재용, 박진식, 류재용

초록

As industry continues to develop, the amount of various recalcitrant substances that cannot be removed by conventionalwastewater treatment has increased in modern society. The SCFs (Soluble Cutting Fluids) used in metalworking processescontain many chemical substances, such as mineral oils, anticorrosive agents, extreme-pressure additives and stabilizers,as well as high concentrations of organics. Recently, electrolysis has been expected to become an alternative toconventional processes and to be useful in various wastewater treatments. Electrolysis is a highly adaptable industrialwastewater treatment method, having a high efficiency, short processing time, and simple equipment composition,regardless of the biodegradable nature of the contaminants. The effects of operating time, current density, and electrolyteon COD removal of waste SCFs have been studied using the stainless steel (SUS316) electrode in a batch type reactor.
The results were as follows. ① Without electrolytes, when the current density was adjusted to 40 A/m2, 60 A/m2, and80 A/m2, the removal efficiencies of the COD were 25.0%, 37.7%, and 49.1% after 60 min, respectively. ② In thecomparison between NaCl (5 ~ 10 mM) addition and non-addition, the removal efficiency with NaCl was higher than forwithout after 60 min for all current densities. ③ In the comparison between Na2SO4 (5 ~ 10 mM) addition and nonaddition,the removal efficiency with Na2SO4 showed no significant difference to that with NaCl at all current densities

영어초록

As industry continues to develop, the amount of various recalcitrant substances that cannot be removed by conventionalwastewater treatment has increased in modern society. The SCFs (Soluble Cutting Fluids) used in metalworking processescontain many chemical substances, such as mineral oils, anticorrosive agents, extreme-pressure additives and stabilizers,as well as high concentrations of organics. Recently, electrolysis has been expected to become an alternative toconventional processes and to be useful in various wastewater treatments. Electrolysis is a highly adaptable industrialwastewater treatment method, having a high efficiency, short processing time, and simple equipment composition,regardless of the biodegradable nature of the contaminants. The effects of operating time, current density, and electrolyteon COD removal of waste SCFs have been studied using the stainless steel (SUS316) electrode in a batch type reactor.
The results were as follows. ① Without electrolytes, when the current density was adjusted to 40 A/m2, 60 A/m2, and80 A/m2, the removal efficiencies of the COD were 25.0%, 37.7%, and 49.1% after 60 min, respectively. ② In thecomparison between NaCl (5 ~ 10 mM) addition and non-addition, the removal efficiency with NaCl was higher than forwithout after 60 min for all current densities. ③ In the comparison between Na2SO4 (5 ~ 10 mM) addition and nonaddition,the removal efficiency with Na2SO4 showed no significant difference to that with NaCl at all current densities

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