solids in secondary sedimentation tank. ... Improvement of the solid-liquid separation efficiency in the secondary sedimentation tank of the biological ... In order to reduce the SS component in the secondary sedimentation tank discharge,
fine SS components
퇴적물의 2가지 유형 (토종 or Not) - 타지성 퇴적물(Allochthonous sediment) : 강, 빙하, 바람에 의해 다른 곳에서 유입된 퇴적물 : 퇴적과정 - ① 운반 ... ↗ ② 이동 → ③ 침강 ↘ ④ 퇴적 ↗ ⑤ 재이동 → ⑥ 이동 … - 현지성 퇴적물(Autochthonous sediment) : 현장에서 생성된 퇴적물 생물기원탄산염(Biogenic ... Surface ⇒Current⇒ 수로차 ① 구멍(Hole) 형성 → ② 구멍을 파낸 퇴적물을 진행 방향에 퇴적 → ③ 수로 차이가 전단응력을 생성시켜 침식작용 발생 → ④ lee side에
Surface sediments and their accumulation before and after the typhoon were sampled and measured at intervals ... The surface sediment texture of the middle tidal zone showed rare variations and band-shaped deposits ... Regarding the surface sediment texture of the high tidal zone, the mean grain size, fines, and sorting
as color problem and low sedimentation velocity. ... sedimentation tank in domestic wastewater treatment plant. ... polymer coagulant was additionally used to enhance sedimentation velocity of the precipitate formed.
Surface sediment samples from 15 stations revealed the occurrence of 33 species involving the Groups ... (Brigantedinium sp.), and Gonyaulax spinifera complex. ... sea of Korea.
Heavy metals in the surface seawaters and sediments were measured in Gaduk channel of jinhae Bay. ... Higher heavy metal contents in the surface sediments were observed at the stations adjacent to the Geojedo ... The contents of Co,Ni,Zn,Cu,As and Cd in the surface sediments showed relatively high correlation coefficients
to be above 1 in all sediment samples. ... samples were also analyzed 13 species of PAHs were detected at all of the surface sediments. ... This study was carried out to survey the contamination of PAHs in sediments around Gwangyang bay.
Trace metals(As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Pb and Zn) concentrations in surface sediments of Jinhae ... grain size(Co, Cr and Fe), redox condition of sediments(Mn) and anthropogenic factors(As, Cd, Cu, Hg ... EF and Igeo values of As, Cd, Cu, Hg, Mn, Pb and Zn showed that these metals in sediments are enriched
The surface sediments were mainly composed of mud. ... the bay, indicating that the surface sediment is under oxidized condition. ... carbon(TOC), total nitrogen(TN), total sulfur(TS) and metallic elements, in surface sediment collected
Metal contamination status in the sediments were also evaluated using the sediment quality guidelines ... sediment samples collected from 19 stations of Gamak Bay in April 2010. ... Our results suggest that the surface sediment in Gamak Bay is not polluted by metallic elements.
Surface sediments of 45 sites in four seasons (May 2006-February 2007) are sampled across three survey ... in terms of the seasonal variations of surface sediment and sedimentary environment. ... The spatial distribution of surface sediments shows a coast-parallel band of fine and medium sands during
Surface sediments of 45 sites in four seasons (May 2006 - February 2007) were sampled along three survey ... The spatial distribution of surface sediments shows a coast-parallel band of fine and medium sands during ... was investigated in terms of the seasonal variations of surface sediment facies and sedimentary environment
and As) of surface sediments collected from 27 sampling sites in the Abalone aquaculture. ... The concentration range and average value of metallics elements were also below the sediment quality ... We measured the grain size and metallics elements (Li, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Hg, Pb, Fe
Surface bedforms, sedimentary structures, sedimentation rate, grain size distribution and can-corer sediments ... , and C zone - coarse silt (5Φ mean), sinuous-type ripples, 10 mm/month in sedimentation rate and well-developed ... sand (2.5Φ mean), dunes (4∼5 m in wavelength), 30 mm/month in sedimentation rate and no bioturbation
Surface sediments are distributed from sandy gravel (sG) to silt (Z). ... A total of 137 surface sediments and one core (by hand auger) sediment were obtained to interpret the ... on the sedimentologic features of the Daebudo area including sedimentation processes, sedimentary facies
Surface sediments for sedimentary analyses were sampled at 199 stations in the study area in August 2003 ... Generally, sandy mud sediments dominated in the southern tidal flat of Ganghwa Island and sand sediments ... The surface sediments consisted of six sedimentary facies.
Surface sediments had been classified as 3 sediment facies: mud, slightly gravelly mud, and gravelly ... Net sediment flux (fs) and net suspended sediment transport (Qs) for suspended sediment were determined ... Net suspended sediment transport loads were seaward with 62.02 ×103 kgm-1, 31.84 ×103 kgm-1 in spring
Marine environmental characteristics on the dinoflagellate cysts distribution in surface sediment of ... the southwest sea of Korea were investigated from 21 stations in September 2003, and 36 stations in
Surface sediments for sedimentary analyses were
sampled at 83 stations in the study area in August 2003 ... The higher value of net
suspended sediment loads at station K1 suggested that lots of suspended sediments ... The surface sediments consisted of five
sedimentary facies.
sand, at the depth of 8∼12m in the sediments. ... Multi-channel Analysis of Surface Waves (MASW) and Seismic Cone Penetration Test (SCPT) have been recently ... survey.