부석을 이용한 포러스콘크리트의 수질정화 성능 평가 연구 = A Study on the Water Purification Performance Evaluation of Porous Concrete Using Pumice

다국어 초록 (Multilingual Abstract)

The focus of the former studies have been to securing appropriate pores applicable to the aquatic environment and extracting an optimum mixture which satisfies the required strength of concrete as a structure by substituting pumice stone for crushed stones used to manufacture porous concrete. However, the lack of research has been evident on the water purification performance of each optimum mixture derived from applying appropriate pores to the aquatic environment. Therefore, this study intends to compare and analyze the water purification performance of the respective optimum mixtures derived in the previous studies. According to the experimental results, it represents that the porosity or pumice stone content of porous concrete has no effect on the items of pH and DO. In the experimental results of SS, BOD, COD, T-N and T-P, their common removal efficiency was found to be higher at the design porosity of 10% than 5%. Based on the results of permeability test at the design porosity of 5%, their removal efficiency was shown to be low because continuous pores were not formed properly. By examining these issues , it is evident that if a mixture of 5-13mm crushed aggregate, 10% porosity and 10% pumice content is applied to the aquatic environment, the porous concrete can satisfy the conditions for securing appropriate pores, the required strength of concrete as a structure, and the water purification of the mixture at the same time.

참고문헌 (Reference)

1 안태웅, "자연정화공법을 이용한 2차 하수처리수의 수질 개선에 관한 연구" 한국환경영향평가학회 18 (18): 79-87, 2009

2 박준석, "유용미생물을 이용한 포러스 콘크리트의장기간 연속흐름 실험을 통한 수질정화 효과 검토" 한국콘크리트학회 26 (26): 219-227, 2014

3 김우석, "수계환경 적용을 위한 설계공극률 및 부석 혼입률에 따른 포러스콘크리트의 물리적 특성 평가" 한국콘크리트학회 28 (28): 703-711, 2016

4 최이송, "다공성 콘크리트의 보 및 하상재료 적용에 따른 하천 수질정화 능력 평가" 한국수자원학회 36 (36): 1013-1023, 2003

5 Joerdening, H. J., "Use of immobilised bacteria for the wastewater treatment-examples form the sugar industry" 53 (53): 9-15, 2005

6 Wang, W., "Study of previous concrete strength" 6 (6): 25-28, 1997

7 APHA, "Standard methods for the examination of water and wastewater"

8 Ministry of Land, "River design criteria·explanation"

9 Federation of Korea Concrete industry Cooperatives, "Revement of concrete and block of retaining wall"

10 Salehizadeh, h., "Removal of metal ions from aqueous solution by polysaccharide produced from bacillus firmus" 37 (37): 4231-4235, 2003

11 Monters, F., "Pervious Concrete:Characterization of fundamental properties and simulation of microstructure" University of South Carolina 2006

12 Borghei, S. M., "Kinetics of organic removal in fixed-bed aerobic biological reactor" 99 (99): 1118-1124, 2008

13 Kim, M. H., "Fundamental properties of porous concrete according to the sizes of aggregate" 13 (13): 438-446, 2001

14 Ebrahimi, S, H., "Formaldehyde biodegradation using an immobilized bed aerobic bioreactor with pumice stone as a support" 18 (18): 1372-1376, 2011

15 Ebrahimi, S. H., "Formaldehyde biodegradation using an immobilized bed aerobic bioreactor with pumice stone as a support" 18 (18): 1372-1376, 2011

16 Aamer Rafique Bhutta, M., "Evaluation of high-performance porus concrete properties" 31 : 67-73, 2012

17 Yasunary, T., "Estimation of self purification capacity of biofilm formed in domestic sewer pipes" 31 (31): 96-101, 2006

18 Nilsson, C., "Efficacy of reactive mineral-based sorbents for phosphate, bacteria, nitrogen and TOC removal column experiment in recirculation batch mode" 47 : 5165-5175, 2013

19 Ministry of Land, "Design work trick of river conservation work"

20 Tamai, M., "Construction and recent applications of porous concrete, Design. Construction and Recent Applications of Porous Concrete in Japan" JCI 1-10, 2004

21 Branson, P. G., "Algea attachment on carbonated cements in fresh and brackish waters-preliminary result" 20 (20): 309-3319, 2003

22 Monteiro, S. M., "A procedure for high-yield spore production by Bacillus Subtilis" 21 (21): 1026-1031, 2005