DOI QR코드

DOI QR Code

The Characteristics of Manufacture Filter Media for Water Treatment Using Mixture Response with Ash and Food Waste

연소재 및 식품폐기물의 혼합 반응에 따른 수처리 여과재 제조 특성

  • Park, Seung-Do (Department of Civil Engineering, Korea National University of Transportation) ;
  • Lee, Won-Ho (Department of Civil Engineering, Korea National University of Transportation) ;
  • Lee, Min-Hee (Department of Construction and Environmental Engineering, Hanbat National University)
  • Received : 2017.12.28
  • Accepted : 2018.03.12
  • Published : 2018.05.01

Abstract

The porosity formation by the addition of additives was found to be the highest in the case of aluminum powder 3% and $Ca(OH)_2$ 2% under the condition that strength was maintained. The optimum mixing ratio of the binder was shown to be the most effective at (Ash+Food waste+clay):(water glass+colloidal silica) 7:3, and the temperature response is most economical and effective at $1,000^{\circ}C$. The optimal mixing ratio is the strength in 30% of ash, 30% of clay and 10% of food waste, which is the effective in non-point pollution water treatment. Filter media produced under optimal mixing conditions were analyzed as $SiO_2$ 65.8%, density $1.4g/cm^3$, porosity 25.6%, pH 9.8, and no hazardous substances were detected. As a result of the filtration of the water treatment, the mean concentration of the filtered SS was $14.06mg/{\ell}$, and the removal efficiency of SS was 90%, the recovery rate of the reversal is 97.1%. This enables the development of filter media considering economic efficiency and efficiency as well as the utilization of waste resources, enabling high value added of waste resources.

본 연구에서는 연소재와 식품폐기물의 산업부산물을 이용하여 비점오염 수처리 여과재로 활용 가능한 여과재를 개발하였다. 첨가제 주입에 따른 공극 형성은 강도가 유지되는 전제하에 알루미늄 파우더 3%, $Ca(OH)_2$ 2%일 경우 기포형성이 가장 많이 발생하는 것으로 나타났다. 결합재의 적정 혼합비로서 (연소재+식품 폐기물+점토):(물유리+콜로이드성 실리카)는 7:3 이상에서 가장 효과적인 것으로 나타났으며, 온도에 따른 강도반응은 $1,000^{\circ}C$일 경우가 효과적이다. 최적의 혼합비율은 연소재 30%, 점토 30%, 식품 폐기물 10%에서 가장 높은 강도를 보여 비점오염 수처리로 활용도가 가장 높을 것이라 판단된다. 최적 배합조건에서 제조된 여과재는 $SiO_2$ 65.8%, 밀도 $1.4g/cm^3$, 공극률 25.6%, pH 9.8로 분석되었으며, 유해물질은 검출되지 않았다. 수처리에 대한 여과능을 알아본 결과 여과된 SS의 평균농도는 $14.06mg/{\ell}$로서 SS의 제거효율은 90.63%로 나타났으며, 역세척 회복률도 97.1%로 나타났다. 이는 폐자원의 활용뿐만 아니라 경제성 및 효율성을 고려한 수처리 여과재 제조가 가능함에 따라 폐자원의 높은 부가가치화가 가능하다.

Keywords

References

  1. Kim, C. H. and Shogren, R. L. (1999), "Preparation and characterization of a biodegradable mulch : paper coated with polymerized vegetable oils", Journal of Applied polymer science, Vol. 73(11), pp. 2159-2167 (In Korean). https://doi.org/10.1002/(SICI)1097-4628(19990912)73:11<2159::AID-APP12>3.0.CO;2-Q
  2. Kim, S. S. (2016), "A study on up flow filtering non-point source pollutants treatment facilities using volcanic stone filter media", The uinversity of Seoul.
  3. Kim, D. H. (2017), "Recycling of bottom ash from local municipal solid waste incinerators for ceramic raw material and sub-base layer materials of the roads", Graduate school of Myongji University.
  4. Lee, J. H. (2015), "The study on the bloating mechanism of the artificial light weight aggregate", Materials Science and Engineering Graduate School Kyonggi University, pp. 31-32.
  5. Ministry of Environment (2006), "Legislation regarding water quality and aquatic biotechnology conservation".
  6. Ministry of Environment (2012), "Comprehensive measures for nonpoint pollution source management (2012-2020)".
  7. Ministry of Environment (2016), "Manual on installation and management of nonpoint pollution abatement facilities".
  8. Park, H. N. (2018), "Development of functional fiber-type adsorbents for ionic dyes removal", Gyeongsang National University.
  9. Shin, S. C. (2012), "Properties of foamed concrete according to types of foam agent", Graduate School of Kongju National University.
  10. Yoon, Y. S. (2009), "A study on treatment of flush rainwater using media", Graduate school of Industry Engineering Seoul National of Technology.