타이타늄 스크랩을 이용한 수용성 절삭유 처리 특성 = Characteristics of Soluble Cutting Fluid Treatment Using Titanium Scraps

다국어 초록 (Multilingual Abstract)

In this study, titanium scraps were used as bipolar packed-bed electrodes for the electrochemical treatment of soluble cutting fluid (SCF), and the removal efficiency of CODCr from the SCF and oil from the titanium scraps were analyzed in accordance with the scrap density, current density, electrolyte type and concentration. The removal efficiency of CODCr after 60 min was 76.0%, 73.8%, 85.0%, and 84.2% for a scrap density of 0, 10, 20, and 30 g/L, respectively, while the removal efficiency for oil was 75.8%, 78.8%, and 66.8% for a scrap density of 10, 20, and 30 g/L, respectively. In addition, the removal efficiency of CODCr after 60 min was 85.0%, 89.1%, and 94.4% and that of oil was 78.8%, 86.3%, and 89.3% for a current density 40, 60, and 80 A/m2, respectively. Finally, after testing the system with no electrolyte or with either Na2SO4 or NaCl (5-10 mM), the highest removal efficiency of CODCr and oil was 94.4%, and 89.3%, respectively, with no electrolyte and a current density of 80 A/m2. In conclusion, the removal of efficiency of CODCr and oil was maximized with a scrap density of 20 g/L, a current density of 80 A/m2, and no electrolyte.

참고문헌 (Reference)

1 손호상, "타이타늄의 리사이클링 기술 현황" 한국자원리싸이클링학회 30 (30): 26-34, 2021

2 채지광 ; 유수환 ; 오정민 ; 임재원, "타이타늄 터닝 스크랩 내 절삭유 제거를 위한 초음파 침지-스팀 및 고온 건조 공정" 한국자원리싸이클링학회 30 (30): 60-65, 2021

3 김동석 ; 박영식, "전기화학적 공정의 운전인자에 따른 산화제 생성과 염료 분해 특성" 한국환경과학회 18 (18): 1235-1245, 2009

4 정호진 ; 성현석, "전기응집/산화를 이용한 축산폐수 처리에 관한 연구" 한국수처리학회 16 (16): 101-108, 2008

5 김동석 ; 박영식, "전기응집 공정을 이용한 Rhodamine B의 제거" 대한환경공학회 31 (31): 1081-1088, 2009

6 정주영 ; 박정호 ; 최원호 ; 박주양, "영가철 충진 회분식 복극전해조에 의한 질산성 질소 제거" 대한토목학회 31 (31): 187-192, 2011

7 이재용, "에너지 低減形 充塡復極電解槽를 利用한 切削油 處理에 關한 硏究" 부산대학교 대학원 2014

8 장성호 ; 양승빈 ; 정병길 ; 이원기 ; 시바쿠마르 ; 정은상 ; 정태화, "스테인리스 전극을 이용한 폐절삭유의 T-N 처리" 한국폐기물자원순환학회 34 (34): 642-647, 2017

9 박영식, "고체 고분자 전해질(SPE)을 이용한 전기분해 공정에서 Rhodamine B 분해" 한국환경보건학회 40 (40): 137-146, 2014

10 Yun CJ, "The Advanced Treatment of Nitrogen Compounds by Electrochemical Method" Dong-A University 2001

11 Park DW, "Practical Guideline for the Selection of Metalworking Fluids" 17 (17): 344-350, 2007

12 Lee CH, "Photodegradation of Water-Soluble Cutting Oil Using UV/TiO2 System" 39 (39): 245-250, 2001

13 National Institute of Environmental Research, "Oil and Grease – Gravimetry (ES 06302.1a)"

14 "Korean National Material Flow Analysis"

15 Korean Standards Association, "KS M 2173 Cutting Fluid"

16 Chiang LC, "Indirect Oxidation Effect in Electrochemical Oxidation Treatment of Landfill Leachate" 29 (29): 671-678, 1995

17 Rajkumar D, "Indirect Electrochemical Oxidation of Phenol in the Presence of Chloride for Wastewater Treatment" 28 (28): 98-105, 2005

18 Yu HC, "Electrochemical Treatment of Wastewater Containing Fluoride" Dong-A University 2006

19 Rajkumar D, "Electrochemical Treatment of Industrial Wastewater" 113 (113): 123-129, 2004

20 Rousar I, "Electrochemical Methods for Purification of Waste Waters" 59 : 45-76, 1994

21 Kalyani, KSP, "Decolorization and COD Reduction of Paper Industrial Effluent using Electro-coagulation" 151 (151): 97-104, 2009

22 Takeda O, "Current Status of Titanium Recycling and Related Technologies" 71 (71): 1981-1990, 2019

23 Norgate TE, "Assessing the Environmental Impact of Metal Production Processes" 15 (15): 838-848, 2007

24 Kim SK, "A Study on Dye Wastewater Treatment using the Electrolysis" 8 (8): 539-545, 1999

25 Hong JS, "A Study on Chemical and Electric Oxidation Process for the Treatment of the Municipal Waste Landfill Leachate" Dankook University 1996