권호 표지

Environmental Engineering Research

대한환경공학회 (Korean Society of Environmental Engineers)

  • 격월간
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  • 1226-1025(pISSN)
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  • 2005-968X(eISSN)

Aim & Scope

The Environmental Engineering Research (EER) is published bimonthly by the Korean Society of Environmental Engineers (KSEE). The EER covers a broad spectrum of the science and technology of air, soil, and water management while emphasizing scientific and engineering solutions to environmental issues encountered in industrialization and urbanization. Particularly, interdisciplinary topics and multi-regional/global impacts (including eco-system and human health) of environmental pollution as well as scientific and engineering aspects of novel technologies are considered favorably. The scope of the Journal includes the following areas, but is not limited to: 1. Atmospheric Environment & Climate Change: Global and local climate change, greenhouse gas control, and air quality modeling This topical section covers a wide range of atmospheric pollution issues, including monitoring and modeling of global climate change, quantitative assessment and solutions of local air pollution, interactions of local and global air pollution impacts, emission reduction of air pollutants, and carbon neutral process development. 2. Renewable Energy & Waste Management: Energy recovery from waste, incineration, landfill, and green energy In addition to traditional waste treatment and recycling, this section is dedicated to more comprehensive scientific and engineering knowledge in the following specific areas: renewable energy production, waste-to-energy conversion technologies, resources recovery from wastes, zero waste, hazardous waste treatment, soil remediation related to waste, and biochar. 3. Environmental Biotechnology & Ecology: Nano-biosensor, environmental genomics, bioenergy, and environmental eco-engineering The Environmental Biotechnology area covers microbial physiology, microbial community, genomic/proteomic studies, biofilm, bioremediation, and applied aspects of biotechnology. Specific topics being dealt with in this area include nano-/biosensors and sensing systems to monitor environmental toxic substances. The Environmental Ecology and Eco-engineering area covers the followings: ecotechnology; habitat reconstruction; restoration ecology; ecosystem conservation; ecosystem rehabilitation; stream and river restoration; wetland restoration; and aspects of ecology. 4. Physical & Chemical Technology: Membrane technology and advanced oxidation This section covers comprehensive topics in novel environmental technologies related to physical and/or chemical approaches. Specific topics of interest include membrane filtration, advanced oxidation, adsorption, granular filtration, and disinfection as well as photoelectrochemical technologies for water treatment. The articles dealing with interdisciplinary topics of above mentioned topics are highly encouraged. 5. Environmental System Engineering: Seawater desalination, ICA (instrument, control, and automation), and water reuse The section emphasizes the application of system engineering principles to solve complex environmental problems, such as water resources management, soil and groundwater pollution, and integrated environmental management. Specific areas of interest are as follows: optimization and development of physicochemical and biological processes, monitoring and control of contaminants, simulation and modeling for the fate and transport of pollutants, and desalination and water reuse systems. 6. Environmental Health & Toxicology: Micropollutants, hazardous materials, ecotoxicity, and environmental risk assessment This section deals with an interdisciplinary scientific field in environmental health & toxicology including environmental OMICS. The integration of a variety of topics in environmental health & toxicology will provide novel perspectives and systematic solutions for the improvement of human health and ecosystem sustainability. Specific topics of interest include emerging micropollutants, health hazards, environmental OMICS sciences, ecotoxicity, and environmental risk assessment.

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제10권1호

  1. Lee, Tae-Yoon;Park, Jae-Woo 1
    https://doi.org/10.4491/eer.2005.10.1.001 PDF KSCI
    Hexavalent chromium in aqueous solutions was successfully removed via sorption and reduction in the presence of waste leaves. Cr(VI) removal followed a first-order reaction, and removal rates were proportional to the amount of waste leaves used in the tests. Most of Cr(VI) were removed via sorption in early stages of the tests, but the reduction reaction played a significant role in Cr(VI) removal later. Solution pHs were continuously decreased due to the microbial activity, which was induced from the microorganisms attached on waste leaves. The decreased solution pHs further enhanced the sorption and reduction of Cr(VI). To characterize the microorganisms found in the tests, a denaturing gradient gel electrophoresis (DGGE) method was used. The majority of microorganisms were composed of Bacillus sp. which can reduce Cr(VI). Thus, waste leaves can be effective reactive media for the treatment of Cr(VI) in the subsurface.
  2. Youn, Jong-Ho;Shin, Hang-Sik 7
    https://doi.org/10.4491/eer.2005.10.1.007 PDF KSCI
    The feasibility of hydrogen production with a raw seed sludge through direct acclimation of feedstock was investigated at acidogenic stage, and methane was harvested at followed methanogenic stage in an anaerobic two-stage process. Hydrogen content was higher than 57% at all tested organic loading rates (OLRs) and the yield of hydrogen ranged from 1.5 to 2.4 mol H2/mol hexose consumed and peaked at 6 gVSl-1day-1. Normal butyrate and acetate were main volatile fatty acids (VFAs), whereas the concentration of propionate was insignificant. The hydrogen-producing bacteria, Clostridium thermosaccharolyticum, was detected with strong intensity at all tested organic loading rates (OLRs) by denaturing gradient gel electrophoresis (DGGE) of the polymerase chain reaction (PCR) analysis. From COD balance in the process, the fraction of the feed-COD converted to the hydrogen-COD at acidogenic stage ranged from 7.9% to 9.3% and peaked at 6 gVSl-1day-1, whereas the fraction of feed-COD converted to the methane-COD at methanogenic stage ranged from 66.2% to 72.3% and peaked at 3 gVSl-1day-1.
  3. Kim, Hey-Suk;Shin, Mi-Soo;Jang, Dong-Soon;Lee, Sang-Ill;Park, Jong-Woon 15
    https://doi.org/10.4491/eer.2005.10.1.015 PDF KSCI
    A computer program is developed for the prediction of the flow pattern and the removal efficiency of suspended solid (SS) in a circular secondary clarifier. In this study the increased density effect by SS on hydrodynamics has been systematically investigated in terms of Froude Number (Fr), baffle existence, and a couple of important empirical models associated with the particle settling and Reynolds stresses. A control-volume based-finite difference method by Patankar is employed together with the SIMPLEC algorithm for the resolution of pressure-velocity coupling. The k-ε turbulence and its modified version are incorporated for the evaluation of Reynolds stresses. The calculation results predicts well the overall flow pattern such as the waterfall phenomenon at the front end of the clarifier and the bottom density current with the formation of strong recirculation especially for the case of decrease of Fr. Even if there are some noticeable differences in the prediction of two turbulence models, the calculated results of the radial velocity profiles are generally in good agreement against experimental data appeared in open literature. Parametric investigation has been systematically made with the Fr and baffle condition with detailed analysis.
  4. Lee, Chan-Won;Weon, Seung-Yeon 22
    https://doi.org/10.4491/eer.2005.10.1.022 PDF KSCI
    Nitrite accumulation is not unusual in batch processes such as sequencing batch reactor (SBR) with high-strength of ammonium or nitrate wastewaters. A possible mechanism of nitrite inhibition on Acinetobacter was depicted in a biochemical model, which the protonated species, nitrous acid form of nitrite, affects proton relating transport at the proton-pumping site crossing the cell membrane under unlimited carbon and phosphorus conditions. This effect exerts inhibition of phosphorylation under aerobic condition and yields low APT/ADP ratio, consequently decrease poly-P synthesis and phosphorus uptake from outside the cell in the model.
  5. Choo, Soo-Tae;Nam, Chang-Mo 31
    https://doi.org/10.4491/eer.2005.10.1.031 PDF KSCI
    The selective catalytic experiments using both sulfated/sulfur-free titania and V2O5/TiO2 catalysts have been conducted for NO reduction by NH3 in a packed-bed, down-flow reactor. The sulfated and vanadia loaded titania exhibited higher activity for NO removal than the sulfur-free catalysts, where > 90% NO removal was achieved over the sulfated V2O5/TiO2 catalyst between 280∼500 C. The surface structure of vanadia species on the catalyst surface played a critical role in the high performance of catalysts in which the existence of monomeric/polymeric vanadate is revealed by Raman spectra studies. Water vapor and SO2 were added to the reacting system for the catalyst deactivation tests. At higher temperatures (T ≥ 350 C), little deactivation was observed over the sulfated V2O5/TiO2 catalysts, showing good durability against SO2 and water vapor, which is compared with deactivation at lower temperatures.
  6. Jung, Joon-Oh 38
    https://doi.org/10.4491/eer.2005.10.1.038 PDF KSCI
    Electro-thermal production of white phosphorus(WP, P4) generates substantial amount of highly toxic phossy water and sludges. Because of their high phosphorus contents and lack of reliable processing technology, large tonnages of these hazardous wastes have accumulated from current and past operations in the United States. In this study, two different methods for treatment of phosphorus sludge were investigated. These were bulk removal of WP by physical separation(froth flotation) and transformation of WP to oxyphosphorus compounds by air oxidation in the sludge medium. Kerosene, among other collectors, resulted in selective flotation of WP from the associated mineral gangue. Solvent action of kerosene occurring on the WP surface(by rendering WP particles hydrophobic) might produce the high selectivity of WP. The WP recovery in the froth was 79.3% from a sludge assaying 34.2% of WP. In the oxidation study, air gas was dispersed in the sludge medium by the rapid rotation of the impeller blades. The high level of sludge agitation intensity caused a fast completion of the oxidation reactions and it resulted in the high percentage conversion of WP to PO4-3 with PO3-3 making up almost all portion of oxyphosphorus compounds. The WP analysis on the treated sludge showed that supernatant solution and solid residue contained an average of 4.2 μg/L and 143 ppm respectively from the sludge containing about 26 g of WP. Further investigation will be required on operational factors to better understand the processes and achieve an optimum condition.