Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Environmental Science International
Journal Basic Information
Journal DOI :
The Korean Environmental Sciences Society
Editor in Chief :
Volume & Issues
Volume 21, Issue 12 - Dec 2012
Volume 21, Issue 11 - Nov 2012
Volume 21, Issue 10 - Oct 2012
Volume 21, Issue 9 - Sep 2012
Volume 21, Issue 8 - Aug 2012
Volume 21, Issue 7 - Jul 2012
Volume 21, Issue 6 - Jun 2012
Volume 21, Issue 5 - May 2012
Volume 21, Issue 4 - Apr 2012
Volume 21, Issue 3 - Mar 2012
Volume 21, Issue 2 - Feb 2012
Volume 21, Issue 1 - Jan 2012
Selecting the target year
Homologue Patterns of Polychlorinated Naphthalenes (PCNs) formed via Chlorination in Thermal Process
Ryu, Jae-Yong ; Kim, Do-Hyong ; Mulholland, James A. ; Jang, Seong-Ho ; Choi, Chang-Yong ; Kim, Jong-Bum ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 891~899
DOI : 10.5322/JES.2012.21.8.891
The chlorination pattern of naphthalene vapor when passed through a 1 cm particle bed of 0.5% (mass) copper (II) chloride (
) mixed with silicon dioxide (
) was studied. Gas streams consisting of 92% (molar)
and 0.1% naphthalene vapor were introduced to an isothermal flow reactor containing the
particle bed. Chlorination of naphthalene was studied from 100 to
at a gas velocity of 2.7 cm/s. Mono through hexachlorinated naphthalene congeners were observed at
whereas a broader distribution of polychlorinated naphthalenes (PCNs) including hepta and octachlorinated naphthalenes was observed at
. PCN production was peak at
with 3.07% (molar) yield, and monochloronaphthalene (MCN) congeners were the major products at two different temperatures. In order to assess the effect of a residence time on naphthalene chlorination, an experiment was also conducted at
with a gas velocity of 0.32 cm/s. The degree of naphthalene chlorination increased as a gas velocity decreased.
Assessment of Bacteria Removal Using Silver Ion Absorbed Ceramic Filter
Kim, Woo-Hang ; Smith, James ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 901~907
DOI : 10.5322/JES.2012.21.8.901
The objective of this study was to evaluate bacteria removal ability of the metallic silver which was baked silver ion impregnated ceramic filter at heating condition. Silver leaking from baked ceramic filter was tested to sustain bacteria removal for a long time. Silver impregnated ceramic filter could remove E. coli completely at
MPN/100ml of influent. However, ceramic filter without silver did not remove E. coli completely under the same condition. After baking, the silver impregnated ceramic filter almost didn't leak out the silver ion from filter. Photo of TEM (Transmission Electron Microscopy) showed that absorbed silver ions remained in ceramic filter after baking process and most of silver were less than 10 nm. According to the increase in the amount of silver in the ceramic filter, removal efficiencies of E. coli were increased but turbidity removal was decreased. It can be accounted that increased removal efficiency of E. coli was from disinfection of silver that is in the ceramic filter. Simulated concentrations of bacteria agree well with the observed experimental effluent concentration data. Moreover, first-order decay coefficients increased to 0.0034/min after silver was added in the ceramic filter. Increase of first-order decay coefficient proves that silver-added ceramic filter can remove bacteria easily.
The Development of STEAM Education Textbook on Water Pollution
Hong, Min-Ah ; Hwang, Book-Kee ; Choi, Jung-Hoon ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 909~929
DOI : 10.5322/JES.2012.21.8.909
It is an after-school material for elementary school student based on STEAM education which has a theme of water pollution as a global issue. First of all, we take a look at various ways of measuring water pollution and among them, we include experiment for student to know about the water pollution by using indicator organisms. Next, we examine how some elements in our daily life affect on water and provide class with systematically technological and engineering solution. With this text book, we let the student recognize environmental problem and seek for the solution about it. Therefore, it helps student to connect with stream of thought.
Growth Responses of Dieffenbachia amoena 'Marianne' and Begonia rex to Different Lengths and Numbers of Slitwalls in Drainless Containers for Green Technology
Ju, Jin-Hee ; Yoon, Yong-Han ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 931~938
DOI : 10.5322/JES.2012.21.8.931
The effects were investigated of different lengths and numbers of slitwalls in drainless containers on growth and change in soil moisture volumes on the growth of Diffenbachia amoena 'Marianne' and Begonia rex. Drainless containers filled with amended soil, with square shape (
) were used, as well as three different sets of slitwalls (2, 4 or 8, respectively) in addition to non-slitwall containers. Two indoor foliage plants were grown in slitwall containers in randomized blocks with 3 replications in greenhouse conditions, from March to September, 2009. Soil moisture volumes per container were measured by weighing containers every 2 hours during the day. The change in soil moisture volumes showed considerable differences among slitwalls tested in comparison to control containers before and after twice-weekly irrigation. Particularly, the differences in the S2 (195mm, slitwall 2) containers were significantly greater than other containers tested. For Diffenbachia amoena 'Marianne', plant height, length of leaf, dry weight and fresh weight were higher with S2 containers than with those grown in other containers tested. The Begonia rex with the best quality in terms of plant height, length of leaf and width of leaf was grown in S8 (360mm, slitwall 8) containers. Particularly, statistical analysis has indicated that shoot fresh weights of Begonia rex grown in S8 were 3-fold higher than those grown in CS8 containers. The different results obtained within the two species led us to hypothesize a species-specific influence on indoor foliage plant performance. However, plants of both species grown in slitwall containers showed good results compared with plants grown in non-slitwall containers.
An Analysis of the Temperature Change Effects of Restoring Urban Streams in Busan Area
Jung, Woo-Sik ; Do, Woo-Gon ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 939~951
DOI : 10.5322/JES.2012.21.8.939
This study is conducted to estimate the air temperature decreasing effects by restoring urban streams using WRF/CALMET coupled system. The types of land use on covered streams are constructed with the land cover map from Korea ministry of environment. Restoring covered streams changes the types of land use on covered areas to water. Two different types of land use(CASE 1 and CASE 2) are inputted to the WRF/CALMET coupled system in order to calculate the temperature difference. The results of the WRF/CALMET coupled system are similar to the observed values at automatic weather stations(AWS) in Busan area. Restoring covered streams causes temperature to be decreased by about
according to the locations of streams and the regions that temperature is reduced are widely distributed over the restored area. Reduction of temperature is increased rapidly from morning and maximus at 13LST. Natural restoration of streams will reduce the built-up area within urban. With this, temperature reductions which are the cause to weaken the urban heat island appear. Relief of urban heat island will help to improve the air quality such as accumulation of air pollutants in within urban area.
An Analysis on the Variation Trend of Urban Heat Island in Busan Area (2006-2010)
Do, Woo-Gon ; Jung, Woo-Sik ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 953~963
DOI : 10.5322/JES.2012.21.8.953
The annual variations of the urban heat island in Busan is investigated using surface temperature data measured at 3 automatic weather stations(AWSs) for the 5 years period, 2006 to 2010. Similar to previous studies, the intensity of the urban heat island is calculated using the temperature difference between downtown(Busanjin, Dongnae) and suburb(Gijang). The maximum hourly mean urban heat island are
at Busanjin site, 2300LST and
at Dongnae site, 2100LST. It occurs more often at Dongnae than Busanjin. Also the maximum hourly mean urban heat island appears in November at both sites. The urban heat island in Busan is stronger in the nighttime than in the daytime and decreases with increasing wind speed, but it is least developed in summer. Also it partly causes the increasement of nighttime PM10 concentration.
Quantitative Estimation of Nonpoint Source Load by BASINS/HSPF
Lee, Jae-Woon ; Kwon, Hun-Gak ; Yi, Youn-Jeong ; Yoon, Jong-Su ; Han, Kun-Yeun ; Cheon, Se-Uk ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 965~975
DOI : 10.5322/JES.2012.21.8.965
Loading of NPS pollutant was valued through simulation by using BASINS/HSPF model which can simulate runoff volume in rainfall by time. For the verification of the model, it was analyzed the scatter diagram of the simulation value and measure value of water quality and runoff volume in Dongcheon estuary. Using the built model, a study on the time-variant characteristics of runoff and water quality was simulated by being classified into four cases. The result showed the simulation value was nearly same as that of the measured runoff. In the result of fit level test for measured value and simulated value, correlation of runoff volume was computed high by average 0.86 and in the water quality items, fit level of simulation and measurements was high by BOD 0.82, T-N 0.85 and T-P 0.79.
Estimation of Runoff Characteristics of Non-point Pollutant Source by Land Cover Characteristics
Lee, Jae-Woon ; Yi, Youn-Jeong ; Kwon, Hun-Gak ; Yoon, Jong-Su ; Lee, Chun-Sik ; Cheon, Se-Uk ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 977~988
DOI : 10.5322/JES.2012.21.8.977
This study analyzed the characteristics of stormwater runoff by rainfall type in orchard areas and transportation areas for 2 years(2010~2011year). Effluents were monitored to calculate the Event Mean Concentrations(EMCs) and runoff loads of each pollutant. The pollutant EMCs by volume of stormwater runoff showed the ranges of BOD 0.9~13.6 mg/L, COD 13.7~45.2 mg/L, SS 4.1~236.4 mg/L, T-N 2.123~21.111 mg/L, T-P 0.495~2.214 mg/L in the orchard areas, and was calculated as BOD 2.3~22.5mg/L, COD 4.4~91.1 mg/L, SS 4.3~138.3 mg/L, T-N 0.700~13.500 mg/L, T-P 0.082~1.345 mg/L in the transportation areas. The correlation coefficient of determination in the orchard area was investigated in the order of Total Rainfall(0.81) > Total Runoff(0.76) > Rainfall Intensity(0.56) > Rainfall Duration(0.46) > Antecedent Dry Days(0.27). Also, in the case of the transportation area was investigated in the order of Total Rainfall (0.55) > Total Runoff(0.54) > Rainfall Intensity(0.53) > Rainfall Duration(0.24) > Antecedent Dry Days(0.14). As the result, comparing valuables relating to runoff of non-pollutant source between orchard areas and transportation areas, orchard area(
: X3, X4, X5) was investigated to have more influence of diverse independent valuables compared to the transportation area(
: X3, X4) and the difference of discharge influence factor by the land characteristics appeared apparently.
Acceleration of Biological Denitrification by Using Bioelectrochemical Reactor
Chun, Ji-Eun ; Yu, Jae-Cheul ; Park, Young-Hyun ; Seon, Ji-Yun ; Cho, Sun-Ja ; Lee, Tae-Ho ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 989~996
DOI : 10.5322/JES.2012.21.8.989
Nitrate contamination of water environments can create serious problems such as eutrophication of rivers. Conventional biological processes for nitrate removal by heterotrophic denitrification often need additional organic substrates as carbon sources and electron donors. We tried to accelerate biological denitrification by using bioelectrochemical reactor (BER) in which electrode works as an electron donor. Denitrification activity of 8 environmental samples from various sediments, soils, groundwaters, and sludges were tested to establish an efficient enrichment culture for BER. The established enrichment culture from a soil sample showed stable denitrification activity without any nitrite accumulation. Microbial community analysis by using PCR-DGGE method revealed that dominant denitrifiers in the enrichment culture were Pantoea sp., Cronobacter sakazakii, and Castellaniella defragrans. Denitrification rate (
) of the enrichment culture in BER with electrode poised at -0.5 V (vs Ag/AgCl) was higher than that (
) of BER without any poised potential. This results suggested that biological denitrification would be improved by supplying potential throughout electrode in BER. Further research using BER without any organic substrate addition is needed to apply this system for bioremediation of water and wastewater contaminated by nitrate.
Study on Function and Vegetational Assessment Values of Man-made Wetland in Gunsan City
Kang, Eun-Ok ; Choi, Young-Eun ; Kim, Chang-Hwan ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 997~1007
DOI : 10.5322/JES.2012.21.8.997
This study was performed to assess functions of 10 man-made wetlands in Gunsan City, Jeollabuk Province by means of RAM (Rapid Assessment Method), a technique recommended by Ramsar Convention to appraise wetlands. The assessment of the wetlands value found Gunsan reservoir to have the highest function points while Bukchosan reservoir was estimated to have the lowest function among the wetlands surveyed. By detailed factors of valued 10 man-made wetland, the wetlands were found to function most favorably in terms of vegetational variety and as habitat for wild animals. They need to have more improved functions as habitats for fish and amphibians reptiles, for preservation and betterment of water quality as well as for supplement of underground water, though. From the assessment of vegetational naturalness of the surveyed reservoirs, Gunsan reservoir turned out to be the most favorable wetland from the viewpoint of vegetation science whereas, however, Anjeong wetland was rated as the lowest in the assessment of vegetational value due to simplicity in its vegetation and lots of dangers in its neighborhood threatening its vegetation and ecology. The assessment of vegetational values for Gunsan, Gongchang, Daewi, Bukchosan, Anjeong, Geumgul, Changan and Chuksan reservoirs showed the same orextremely similar results as RAM function assessment. Geumsan reservoir only, however, featured the opposite result.
First Record of the Western Conifer Seed Bug, Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae) in Korea
Yoon, Chun-Sik ; Kim, Hyoung-Gon ; Park, Jong-Dae ; Choi, Won-Young ; Choi, Hyeok-Jae ; Cheong, Seon-Woo ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 1009~1013
DOI : 10.5322/JES.2012.21.8.1009
Leptoglossus occidentalis Heidemann, 1910 was newly recorded in Korea as a invasive species at Gyeongsangnam-do, Korea in 2010 and 2011. Leptoglossus Guerin-Meneville, 1831 is also newly recorded Coreid genus in Korea. The diagnostic shape is expanded leaf-like hind tibiae. The origin of this species is North America and it has been rapidly propagated around the world as a pest. This bug recognized as a pest on almost of Pinaceae plants and they suck on developing cones, so the monitoring on the present invasion of this species in Korea is urgent. It was presumed that the invasion of Leptoglossus occidentalis into Korea was before 2010 with present study.
Formation of Disinfection By-Products from Blue-green Algae by Chlorination
Son, Hee-Jong ; Jung, Jong-Moon ; Yeom, Hoon-Sik ; Choi, Jin-Taek ; Jang, Seong-Ho ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 1015~1021
DOI : 10.5322/JES.2012.21.8.1015
Formation of disinfection by-products (DBPs) including trihalomethans (THMs), haloacetic acid (HAAs), haloacetonitriles (HANs) and others from chlorination of algogenic organic matter (AOM) of Microcystis sp., a blue-green algae. AOM of Microcystis sp. exhibited a high potential for DBPs formation. HAAs formation potential was higher than THMs and HANs formation potential. The percentages of dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) formation potential were 43.4% and 51.4% in the total HAAs formation potential. In the case of HANs formation potential, percentage of dichloroacetonitrile (DCAN) formation potential was 97.7%. Other DBPs were aldehydes and nitriles such as acetaldehyde, methylene chloride, isobutyronitrile, cyclobutanecarbonitrile, pentanenitrile, benzaldehyde, propanal, 2-methyl, benzyl chloride, (2-chloroethyl)-benzene, benzyl nitrile, 2-probenenitrile and hexanal.
Effect of Korean Effective Microorganisms and Seafood Amino Acid Fertilizer on the Root Quality of Panax ginseng
Ann, Seoung-Won ;
Journal of Environmental Science International, volume 21, issue 8, 2012, Pages 1023~1030
DOI : 10.5322/JES.2012.21.8.1023
Contents of ginsenosides 7 subordinations of two-year ginseng (fresh ginseng) is 1.27% and three-year ginseng is 2.09%, so the three-year ginseng root increased 64.9% compared to the two-year root. Compared with the comparison group, ginsenosides component content of KEM+SAF-applied group increased 24% in case of the two-year root and 20% in case of the three-year root. In vitamin C content, two-year root showed 59.4% higher and three-year root showed 37.7% higher in KEM+SAF applied group compared with the comparison group. In case of vitamin E, the two-year root indicated 5.6% higher and three-year root indicated 1.5% higher in KEM+SAF applied group compared with the comparison group, but there is no significant difference. In phytosterol three components (campesterol, stigmasterol, sitosterol), two-year root showed 25.3, 3.6, 14.1% higher for each, and three-year root showed 23.6, 6.8, 12.9% higher in KEM+SAF applied group and 14.4% was higher on average. In DPPH, two-year root indicated 34.4% higher and three-year root indicated 42.4% higher in KEM+SAF applied group compared to the comparison group. To sum up the results, KEM+SAF applied group showed (1)22% ginsenosides components content, (2)48.6% vitamin C content, (3)3.6% vitamin E content, (4)14.4% phytosterol content, (5)38.4% DPPH higher averagely compared to the comparison group.