소규모 오수발생지역의 고도처리시설을 위한상·하흐름형 인공습지 개발
Development of up- and down-flow constructed wetland for advanced wastewater treatment in rural communities
1
조회
0
다운로드
0
인용
0
참고문헌
초록
Abstract
The feasibility of the dynamic flow constructed wetland was examined for rural wastewater treatment in Korea. Many constructed wetland process was suffered from substrate clogging and high plant stresses because of long term operation. The dynamic flow constructed wetland process used porous granule materials (charcoal : pumice : SSR = 10 : 20 : 70) for promoting intake rate of nutrient to plant, and especially flow type was designed continuously repeating from up-flow to down-flow. BOD5 and SS was removed effectively by the process with the average removal rate being about 75% respectively. The wetland process was effective in treating nutrient as well as organic pollutant. Removal of TN and TP were more effective than other wetland system and mean effluent concentrations were approximately 7.5 and 0.4 mg L-1 which satisfied the water quality standard for WWTPs. The treatment system did not experience any clogging or accumulations of pollutants and reduction of treatment efficiency during winter period because constructed polycarbonate glass structure prevented temperature drop.Considering stable performance and effective removal of pollutant in wastewater, low maintenance, and cost-effectiveness, the dynamic flow constructed wetland was thought to be an effective and feasible alternative in rural area.
참고문헌 (23)
- "Standard Methods for the Examination of Water and Wastewater" (1998), American Public Health Association,
- "Wastewater Treatment in Constructed Wetlands Constructed Wetlands for Water Quality Improvement" (1993), Lewis Publishers
- "Development of an environmentally friendly sewage disposal model for agricultural and fishing village areas.", 2, pp.10~19 (1999)
- "A study on sewage plant with water plants and gravels for treatment of sewage generated in farming and fishing village.", 10, pp.222~233 (2004)
- "and P. T. Bowen. 1994. Constructed Wetlands for Wastewater Treatment. Pages 221-241. In D.M. Kent", CRC Press. Boca Raton. FL. 436pp.
- "A review of the design and performance of vertical flow and hybrid reed bed treatment systems.", 40(3), pp.1~9 (1999)
- "R. C. and C. R. Williams. 1997. Removal of metals and ammonia in constructed wetlands", 69, pp.132~135 (1997)
- "Pond system for further polishing of constructed wetland effluent during winter season.", 44(4), pp.139~148 (2002)
- "E. Herity and L. Davison. 2005. Treatment at different depths and vertical mixing within a 1-m deep horizontal subsurface-flow wetland.", 25, pp.567~582 (2005)
- "The use of leca for the removal of phosphorus from wastewater.", 35, pp.87~93 (1997)
- "Treatment wetlands", pp.415~442 (1996)
- "N & COD Removal in vertical flow system.", 35, pp.79~85 (1997)
- "Development of natural wastewater treatment system for decentralized regions" (2006), Department of Rural Engineering, University of Konkuk
- "Wastewater Engineering" (1991)
- "Wetlands 3rd ed." (2000), John Wiley & Sons
- "Design recommendations for subsurface flow constructed wetlands for nitrification and denitrification.", 40(3), pp.257~263 (1999)
- "Natural systems for waste management and treatment." (1995), McGraw-Hill Inc.
- "Nutrient removal mechanism in constructed wetlands and sustainable water management.", 40, pp.121~128 (1999)
- "Organic matter accumulation during maturation of gravel-bed constructed wetlands treating farm dairy wastewater.", 32, pp.3046~3054 (1998)
- "Constructed wetlands for wastewater treatment in the Czech Republic the first 5 years experience.", 34, pp.159~164 (1996)
- "Nitrogen removal rate of free-water-surface treatment wetland system constructed on floodplain during its initial operating stage.", 6, pp.41~48 (2003)
- "Total phosphorus removal rate of a subsurface-flow wetland system constructed on floodplain during its initial operating stage", 6(6), pp.49~55 (2003)
- "Wetland performance for wastewater treatment in growing and winter seasons. Joural of the Korean Society of Agricultural Engineers 41", pp.37~46 (1999)