Selection of Optimum Pebbles Size in Sewage Treatment Plant by Natural Purification Method

Seo, Dong‐Cheol; Cho, Ju-Sik; Park, Hyun-Geoun; Kim, Hyoung-Kab; Heo, Jong-Soo; Lee, Hong-Jae

doi:10.5338/kjea.2003.22.1.026

Cited by 9 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Dong-Cheol Seo 1) , Seok-Cheon Lim 2) , In-Seong Jo 2) , Byeong-Ju Lee 2) , Hong-Jae Lee 3) , Sang-Don Kim 4) , Jun-Bae Lee 4) , Ju-Sik Cho Table 1. Characteristics of the sewage used Table 2.…”

Section: Comparison Of Removal Efficiencies In Single and Duplex Ventmentioning

confidence: 99%

Comparison of Removal Efficiencies in Single and Duplex Ventilation Constructed Wetland Systems for Treating Domestic Sewage

Seo¹,

Lim²,

Jo³

et al. 2009

Korean Journal of Environmental Agriculture

Self Cite

View full text Add to dashboard Cite

To develop environmentally friendly constructed wetlands(CWs) for treating domestic sewage which was produced in farming and fishing village, the efficiency of water treatment at different ventilation systems in the vertical bed, depths of horizontal bed, and sewage loads was investigated. In the vertical bed, BOD and COD by duplex ventilation system were lower than those by single ventilation system. But T-N and T-P concentrations by both ventilation systems in the vertical bed were little different. In the horizontal bed, BOD, COD, T-N and T-P in 1.0 m and 1.3 m depths were little different. To reduce the CWs' area and to improve the pollutant removal efficiencies, the optimum depth of horizontal bed was 1.3 m. In single and duplex ventilation CWs, the removal rate of BOD, COD, SS, T-N and T-P decreased slightly with the sewage load increases. In same sewage load conditions, the removal rates of BOD, COD, SS, T-N and T-P by duplex ventilation CWs were higher than those by single ventilation CWs. In summary, to effectively treat domestic sewage from farming and fishing village, the optimum constructed wetlands would be the duplex ventilation CWs.

show abstract

Section: Comparison Of Removal Efficiencies In Single and Duplex Ventmentioning

confidence: 99%

Comparison of Removal Efficiencies in Single and Duplex Ventilation Constructed Wetland Systems for Treating Domestic Sewage

Seo¹,

Lim²,

Jo³

et al. 2009

Korean Journal of Environmental Agriculture

Self Cite

View full text Add to dashboard Cite

show abstract

“…이에 본 연구진은 선행연구 (Park et al, 2008; (Seo et al, 2006). 이로 인해 인공습지 오폐수처리장의 설계 시공시 인 의 흡착능이 우수한 여재 선정과 관련하여 많은 연구결과가 보고되었고 (Seo et al, 2003;, 본 연구진 의 폐양액처리장 관련 선행연구 (Seo et al, 2010) (Heyman, 1998). 이상의 결과를 미루어 볼 때 폐양액을 효과적으로 처리할 수 있는 최적 조건은 system A이었다.…”

unclassified

Selection of Optimum System in Constructed Wetlands for Treating the Hydroponic Waste Solution Containing Nitrogen and Phosphorus

Park¹,

Seo²,

Kim³

et al. 2012

Korean Journal of Soil Science and Fertilizer

Self Cite

View full text Add to dashboard Cite

In order to develop constructed wetlands for treating hydroponic wastewater in greenhouse, actual constructed wetlands were used the obtained optimum condition in previous study, and the removal rate of pollutant in the water according to 4 kinds connection method of piping such as system A (UP-UP stream), system B (UP-DOWN system), system C (DOWN-UP stream) and system D (DOWN-DOWN stream) were investigated. Removal rate of biochemical oxygen demand (BOD), chemical oxygen demand (COD), suspended solids (SS), total nitrogen (T-N) and total phosphorus (T-P) by system A (UP-UP stream) connection method in actual constructed wetlands were slightly higher than other systems. At the system A, the removal rate of BOD, COD, SS, T-N and T-P were 88, 77, 94, 54 and 94%, respectively. Under different hydroponic wastewater loading, the removal rates of pollutants were higher in the order of 75 L m -2 day -1 ≒ 150 L m -2 day -1 ≧ 300 L m -2 day -1 . Therefore, optimum connection method was system A for treating hydroponic wastewater in greenhouse.

show abstract

Long-term performance of vertical-flow and horizontal-flow constructed wetlands as affected by season, N load, and operating stage for treating nitrogen from domestic sewage

Kim

Cho

Park

et al. 2015

Environ Sci Pollut Res

View full text Add to dashboard Cite

To investigate the long-term nitrogen treatment efficiency in vertical-flow (VF)-horizontal-flow (HF) hybrid constructed wetlands (CWs), the nitrogen removal efficiency under different seasons, N loads, and three operating stages (representing age of the wetland) were evaluated over a 12-year period. The average total nitrogen (TN) removal efficiencies in the effluent during the operation period were in the following order: summer (75.2%) > spring (73.4%) ≒ autumn (72.6%) > winter (66.4%). The removal efficiencies of TN in summer, autumn, and spring were generally higher than those in winter. At different stages of operation (years), the average TN removal rates in the effluent were in the following order: middle stage (73.4%; years 2006-2009) > last stage (72.0%; years 2010-2013) > beginning stage (70.1%; years 2002-2005). In VF-HF CWs, the amount of average TN removal (mg N m(-2) day(-1)) over the 12-year period was in the order of summer (5.5) ≒ autumn (5.1) > spring (4.3) ≒ winter (4.2) for the VF bed and in the order of summer (3.5) ≒ spring (3.5) ≒ autumn (3.3) > winter (2.7) for the HF bed, showing that the amount of TN removal per unit area (m(2)) in summer was slightly greater than that in other seasons. The amount of TN removal in the VF bed was slightly greater than that in the HF bed. Using three-dimensional simulation graphs, the maximum TN removal rate was at inflow N loads below 2.7 g m(-2) day(-1) in the summer season, whereas the minimum TN removal rate was at inflow N loads below 1.4 g m(-2) day(-1) in the winter season. Consequently, the TN removal efficiency was very stable over the 12 years of operation in VF-HF hybrid CWs. Results demonstrate that the VF-HF hybrid CWs possess good buffer capacity for treating TN from domestic sewage for extended periods of time.

show abstract

Selection of Optimum Pebbles Size in Sewage Treatment Plant by Natural Purification Method

Cited by 9 publications

References 4 publications

Comparison of Removal Efficiencies in Single and Duplex Ventilation Constructed Wetland Systems for Treating Domestic Sewage

Comparison of Removal Efficiencies in Single and Duplex Ventilation Constructed Wetland Systems for Treating Domestic Sewage

Selection of Optimum System in Constructed Wetlands for Treating the Hydroponic Waste Solution Containing Nitrogen and Phosphorus

Long-term performance of vertical-flow and horizontal-flow constructed wetlands as affected by season, N load, and operating stage for treating nitrogen from domestic sewage

Contact Info

Product

Resources

About