• Title/Summary/Keyword: Treat

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Development of a System to Treat Industrial Wastewater with High Carbonaceous and Nitrogenous Materials (고농도(高濃度) 유기물(有機物) 및 질소(窒素)를 함유(含有)한 산업폐수처리(産業廢水處理) 시스템 개발(開發))

  • Lee, Yong Woon;Lee, Byonghi;Chung, Seon Yong;Jung, Su Jung
    • Journal of Korean Society of Water and Wastewater
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    • v.12 no.2
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    • pp.67-75
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    • 1998
  • The purpose of this study is to develop a system for treating industrial wastewater with high carbonaceous and nitrogenous materials. To investigate the potential of using this system, a number of experiments are conducted for about 7 months with the varieties of COD and $NH_3-N$ concentrations, and hydraulic retention time. In the system, 1,500mg/L of COD is remover over 95% in a retention time as low as 9 hours, and the $NH_3-N$ removal efficience is nearly 100% with 90mg/L of $NH_3-N$ in the influent. These results illustrate that the system can effectively be used to treat industrial wastewater containing high concentration of COD and $NH_3-N$.

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Comparative Studies of Common Herbs Between Yakjing and the Textbook of Herbology (약징(藥徵)과 본초학(本草學)에서의 공통 약물의 관한 비교 연구)

  • Kim, Jong-Guk;Oh, Min-Seok
    • Journal of Haehwa Medicine
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    • v.18 no.2
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    • pp.119-129
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    • 2009
  • The purpose of this study is to find out relationship between "Yakjing" and the textbook of herbology. Conclusions are as below. 1. The herbs of accumulation of poison(結毒) generally show cold nature and have a reducing effect, which resemble the method of treating accumulation and stagnation. 2. The herbs of muscular contracture(攣) show sweet taste and tonifying effect, fall on the spleen and the stomach and have acts of treating urgency, relieving pain and conciliating, which resemble the method of treating urgency(急)and pain from accumulation and stagnation. 3. The herbs of water poisons(水毒) are categorized as those of cold nature and dampness and we can find out that water poisons is related to cold nature. 4. The herbs of feverish feeling(煩) treat heat. 5. The herbs of cardiothoracic part have an effect of regulating Gi and treat the phlegm disease.

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The treatment of insomnia through stability of the autonomic nervous system (자율신경 안정을 통한 불면증 치료)

  • Yoon, Jong-Cheon;Jung, In-Chul;Lee, Sang-Ryong
    • Journal of Haehwa Medicine
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    • v.18 no.2
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    • pp.141-145
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    • 2009
  • Following thesis is about comprehensive treatment of insomnia through stability of the autonomic nervous system. It is widely accepted that most of the relevant symptoms of insomnia can be blamed on successive instability of the autonomic nervous system. In order to treat insomnia effectively, it is essential to maintain stability in the autonomic nervous system. When one is at stable stage of the autonomic nervous system, one maintains steady hormonal discharge. In Oriental Medicine, it is the stage when one has a sound qi-blood circulation. To treat insomnia effectively, one has to obtain both physical and mental relaxation through various ways.

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A Study on the Reasonable Service Charges for Incheon North Port(berth 3) under the Private Investment Project

  • Park, Jin-Hee
    • Journal of Navigation and Port Research
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    • v.28 no.7
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    • pp.601-608
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    • 2004
  • Recently, port development has been actively in progress through a private investment project. Incheon North Port functions as an auxiliary port for Incheon Port to solve its chronic demurral and freight congestion and to treat materials such as wood, iron material, feed materials. Service charges is one of important factors in the port choice to treat general goods. In general, service charges can be calculated by two methods such as cost accounting method and market price method. This study will review the characteristics of the Incheon North Port (berth 3), which is under the progress of the private investment project and estimate the reasonable service charges for general goods on the basis of market price. This will help a concessionaire to maximize the operation efficiency.

Decomposition of Acetonitrile by Planar Type Dielectric Barrier Discharge Reactor (평판형 유전체 장벽 방전 반응기에서 Acetonitrile의 분해 특성)

  • 송영훈;김관태;류삼곤;이해완
    • Journal of the Korea Institute of Military Science and Technology
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    • v.5 no.3
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    • pp.105-112
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    • 2002
  • A combined process of non-thermal plasma and catalytic techniques has been investigated to treat toxic gas compounds in air. The treated gas in the present study is $CH_3$CN that has been known to be a simulant of toxic chemical agent. A planar type dielectric barrier discharge(DBD) reactor has been used to generate non-thermal plasma that produces various chemically active species, O, N, OH, $O_3$, ion, electrons, etc. Several different types of adsorbents and catalysts, which are MS 5A, MS 13X, Pt/alumina, are packed into the plasma reactor, and have been tested to save power consumption and to treat by-products. Various aspects of the present techniques, which are decomposition efficiencies along with the power consumption, by-product analysis, reaction pathways modified by the adsorbents and catalysts, have been discussed in the present study.

Effect of Water-Hardness in the Biological Wastewater-treatment (생물학적 폐수처리시 수질 경도에 따른 처리효과 연구)

  • Park Young G.
    • Journal of environmental and Sanitary engineering
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    • v.19 no.3 s.53
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    • pp.58-64
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    • 2004
  • Biological treatment of wastewater was studied with a purpose to remove TOC by the reduction of water hardness. The optimal conditions of coagulant were determined by reaction time and amount of coagulant. Experimental results indicate that the biological treatment after physico-chemical treatment was found to provide very efficient removal efficiency in the process to treat the textile wastewater, including the carbon dioxide treatment. The combined process of carbonization in the physico-chemical treatment respectively was increased the removal efficiencies of $30.0\%$ in biological treatment in comparison with exclusive biological treatment. As a result, the treatment of hardness after carbonization had the best removal efficiency of approximately $60.0\%$. The removal efficiencies in the exclusive biological treatment using Bacillus subtilis and after carbonization were increased by $38.9\%\;and\;69.0\%$ respectively. The combined Bacillus subtilis-assisted biological treatment was determined to be the most effective method to treat the textile wastewater in an economic point of view, the water quality in the wastewater treatment plays an important role.

A High Resolution Scheme for Cavitating Flow

  • Shin B. R.;Oh S. J.;Obayashi S.
    • 한국전산유체공학회:학술대회논문집
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    • 2005.10a
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    • pp.169-177
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    • 2005
  • A high resolution scheme for solving gas-liquid two-phase flows with cavitation is described. This scheme uses the curvilinear coordinate grid and solves the density based momentum equations for mixture of gas-liquid medium with a preconditioning method to treat both compressible and incompressible flow characteristics. The present preconditioned method is based on the Runge-Kutta explicit finite-difference scheme, and is improved by using the diagonalization, the flux difference splitting and the MUSCL-TVD schemes to save computational effort and to increase stability and resolvability, especially at gas-liquid contact surfaces. A homogeneous equilibrium cavitation model is used to treat the gas-liquid two-phase medium in cavitating flow as a locally homogeneous pseudo-single-phase medium. Therefore, it is easy to solve cavitating flow, including wave propagation, large density changes and incompressible flow characteristic at low Mach number. Some numerical results obtained by the present scheme are shown.

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Treatment of the fuel oxygenate, MTBE, contaminated ground water using Sequence Batch Bioreactor

  • ;Robert M. Cowan
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2000.05a
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    • pp.92-95
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    • 2000
  • A mixed bacterial culture capable of mineralizing methyl tort-butyl ether (MTBE), other fuel oxygenates ethers, tertiary carbon alcohols, benzene and toluene was used to inoculate batch reactor and sequence batch reactor (SBR) to treat gasoline contaminated ground water containing about 60 mg/L MTBE, 5 mg/L benzene, 5 mg/L toluene, and low concentrations of several other aromatic and aliphatic hydrocarbons. Respirometery studies showed that MTBE degrading mixed culture could treat MTBE contaminated ground water with addition of nitrogen and phosphate. SBR was operated to demonstrate the feasibility of using suspended growth activated system for the treatment of ground water and to confirm that the respirometry derived kinetics and stoichiometric coefficients were useful for predicting reactor performance. Theoretical performance of the reactor was predicted using mathematical models calibrated with biokinetic parameters derived from respirometry studies.

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A Research on Clinical Use of the Xiexiafa (사하법의 내과적 임상응용)

  • 이원철
    • The Journal of Korean Medicine
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    • v.21 no.4
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    • pp.3-8
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    • 2000
  • Xiexiafa is the one of eight methodes of treatment, the purgatives of oriental medicine was originated from Shanghanlun written by Zhangzhongjing. Traditionally Xiexiafa has been used to treat constipation. But All kinds of researches on Xiexiafa made purgatives possible to use variously for the disease of internal medicine. In the research on clinical use of Xiexiafa, the results were as follow. Xiexiafa is available on emergency medicine because of instant relief. It has an ability of preventive medicine and economical effect. It was considered to treat hard to cure and chronic diseases made by Sushi, Rexie, Shuijie, Tanzhi, Xuxie etc. Considering strong side effects of Xiexiafa and patient conditions, it must be used carefully.

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Prasaplai: An essential Thai traditional formulation for primary dysmenorrhea treatment

  • Tangyuenyongwatana, Prasan;Gritsanapan, Wandee
    • CELLMED
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    • v.4 no.2
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    • pp.10.1-10.8
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    • 2014
  • Affecting more than half of menstruating women, dysmenorrhea is a cramp which causes abdominal or lower back pain just before or during a menstruation. In western medicine, non-steroidal anti-inflammatory drugs (NSAIDs) are normally used to treat primary dysmenorrheal symptoms. Despite their rapidity in relieving pain, NSAIDs have many serious side effects on the liver, kidney, and gastrointestinal tract. Thai traditional medicines comprise many preparations for treating dysmenorrhea, especially Prasaplai preparation which has been listed in the Thai traditional common household drug list since 2006. The use of Prasaplai was originated about 100 years ago and is still being used in the present time to treat dysmenorrhea. This review focuses on the history of the preparation, active ingredients, and biological activities especially on cyclooxygenase inhibitor, artifacts occurred in the preparation, quantitative analysis, and clinical trial of Prasaplai formulation.