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2016 Vol.3, Issue 4 Preview Page
Phosphate Adsorption Characteristics of a Filter Medium, Adphos, and Its Efficiency by the Filtration Experiment Combined with the Vegetation Mat

Adphos 여재의 인 흡착특성과 식생 매트와 결합한 여과실험에 의한 효율

Ji Ah Kim1
,
Gwang Jin Joo1
,
I Song Choi2
,
Kwang Hyeon Chang2
,
Jong Min Oh2*
김 지아1
,
주 광진1
,
최 이송2
,
장 광현2
,
오 종민2*
1Department of Applied Environmental Science, Kyung Hee University
2Department of Environmental Science and Engineering, Kyung Hee University
1경희대학교 환경응용과학과
2경희대학교 환경학 및 환경공학과
*교신저자. *Corresponding Author. 
31 December 2016. pp. 231-237
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Abstract

The purpose of this study is to analyze phosphate adsorption characteristic of the filter media applied in water purification technology. And it is also to observe the removal efficiency of the technology that was developed by combining the purification abilities of filter media and the vegetation mat. The filter media, Adphos, is the subject of this study. The result of adsorption test shows that PO43--P adsorption characteristics of Adphos is determined by the Langmuir isotherm model fitting and the qm (maximum adsorption amount) value is calculated as 1.162 mg/g. To verify the removal efficiency of the purification technology, a lab-scale reactor, including a 400 mm depth of filter bed filled by Adphos, was manufactured. Yellow flag Iris (Iris pseudacours L.) was planted on the vegetation bed and the coir-roll was used to fix the root of vegetation. The reactor ran 8 hours per day over 71 days, and the results of filtration experiment show that average removal efficiency of SS, T-N and T-P were calculated as 94%, 41% and 64% respectively. With these results, it was proved that the purification technology is highly effective. And for the long-time use, a maintenance guide is also required.

Keywords
Adphos
Filtration experiment
Langmuir isotherm model
Phosphate adsorption characteristic
Water purification technology

본 연구에서는 여재와 식생을 결합한 수질정화기술에 적용된 여재의 흡착특성을 파악하고, 장기 여과실험에 따른 제거효율의 추이를 관찰하였다. 연구대상 여재는 Adphos이며 인산염 인 (PO43--P) 흡착특성 분석결과 Adphos는 Langmuir 흡착모델에 적합한 것으로 분석되었고 이 모델에 적용 시 인산염 최대흡착량 (qm)은 1.162 mg/g 으로 산출되었다. 정화기술의 효율을 검증하기 위하여 Adphos의 두께를 400 mm로 충진한 실험실 규모 반응기를 제작하였다. 식생부는 노랑꽃창포 (Iris pseudacours L.)를 식재하였고 식물의 활착을 위한 기반재는 야자섬유 롤 (coir roll)을 사용하였다. 일일 8시간씩 71일간 여과실험을 지속한 결과 융복합형 반응기의 평균 제거효율은 SS, T-N, T-P 각각 94%, 41%, 64%로 나타났다. 실험 결과에 따라 정화기술의 성능이 우수한 것으로 사료되며, 부도기술의 장기 적용을 위한 유지관리방안 마련이 요구된다.

키워드
Adphos
여과실험
Langmuir 등온흡착 모델
인 흡착특성
수질정화기술
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 3
  • No :4
  • Pages :231-237
  • Received Date : 2016-11-28
  • Revised Date : 2016-12-09
  • Accepted Date : 2016-12-20
  • DOI :https://doi.org/10.17820/eri.2016.3.4.231
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