상하수도학회지 제33권 제4호 (p.251-257)

다기능 금속산화물의 하수처리 적용-흡착 및 살균

The application of multifunctional metal oxide for wastewater treatment: Adsorption and disinfection
키워드 :
Multifunction,Metal oxide,Adsorption,Disinfection,다기능,금속산화물,흡착,살균

목차

ABSTRACT
1. 서 론
2 실험 재료 및 방법
2.1 흡착제 합성
2.2 회분식 실험-제거효율 결정
2.3 등온흡착 실험
2.4 살균 실험
3. 결과 및 고찰
3.1 Tri-metal 특성분석
3.2 인산염 제거 효율
3.3 등온 흡착 실험
3.4 미생물 살균 실험
4. 결 론
References

초록

The physical treatment such as chemical precipitation or adsorption was usually added after biological treatment in wastewater treatment process since it was enforced to reduce the concentration of phosphate for wastewater effluent to 0.2 mg/L as P which was well known as one of main nutrient causing eutrophication in waterbody. Therefore, the new material functioned for both adsorption and disinfection was prepared with Fe and Cu, and TiO2, respectively, by changing the ratio of concentration referred to tri-metal (TM). According to SEM-EDS, TiO2 was 30~40% composition for any TM regardless of any synthesis condition. However, the ratio of composition for Fe and Cu was dependent on the initial Fe and Cu concentration, respectively. The removal efficiency of phosphate was obtained to 15% at low initial concentration and the maximum uptake (Q) was calculated to ~11 mg/g through Langmuir isotherm model using TM1 which was synthesized at 1000 mg/L, 1000 mg/L, and 2 g (10 g/L) for Fe(NO3)3, Cu(NO3)2, TiO2, respectively. In disinfection test, the efficiency of virus removal using TM was increased with increase of dosage of TM and can be reached 98% at 0.2 g.