양수시험에 의한 포항 흥해지역 심부지열수의 수리지화학적 규명

조병욱,윤욱,송윤호,Cho Byong-Wook,Yun Uk,Song Yoon-Ho 한국지하수토양환경학회 2006 지하수토양환경 Vol.11 No.3

Hydrogeochemistry of deep geothermal water (temperature: $42.2-47.9^{\circ}C$) at Heunghae, Pohang was evaluated using core logging, temperature and electrical conductivity (EC) logging before and after pumping tests, chemical analysis of geothermal water with depth, and observation of water quality variations during pumping tests. The geology of the area is composed of highly fractured marine sedimentary rocks. The hydrogeochemistry of geothermal water varies with drilling depth, distance from the coast, and pumping duration. According to the temperature and EC variations during 4 times of pumping tests, main aquifer of the area is considered as the fractured zones (540 to 900 m) developed in rhyolitic rocks. The high content of Na and $HCO_3$ in geothermal water can be explained by the inflow of deep groundwater from inland regulated by dissolution of silicates and carbonates. High TDS, Na and Cl concentrations indicate that the geothermal water was also strongly affected by seawater. The molar ratios of Na:Cl ($0.88{\sim}2.14$) and Br:Cl ($21.0{\sim}24.9{\times}10^{-4}$) deviate from those of seawater (0.84 and $34.7{\times}10^{-4}$, respectively), suggesting that water-rock interaction also plays an important role in the formation of water quality. 코아검층, 양수시험 전후의 온도와 전기전도도 검층, 섬도별 지열수의 수질분석, 양수시험시 지열수의 수질변화 관측 을 통하여 포항 흥해지역 심부지열수 ($42.2-47.9^{\circ}C$) 의 수리지화학적 특성을 고찰하였다. 연구지역의 지하지질은 파쇄 정도가 심한 해성 기원의 퇴적암류로 구성되어 있으며, 지열수의 수질은 굴진심도, 해안으로부터의 거리, 양수시간에 따라 달라짐을 보였다. .4 차례의 양수시험시 수온, 전기전도도 변화를 볼 때, 연구지역 지열수의 주 대수층은 심도 540-900 m까지의 유문암에 발달된 파쇄대로 판단된다. 연구지역 지열수의 Na 와 $HCO_3$ 함량이 높은 것은 탄산염과 규산염의 용해가 활발한 내륙쪽에서 유입되는 심부 지하수의 기여 때문으로 판단된다. 연구지역 지열수는 높은 총고용물질, Na, Cl 함량으로 보아 해수의 영향을 많이 받았으나, Na:Cl 몰비가 $0.88{\sim}2.14$ 로 해수의 0.84 보다 높으며, Br:Cl 함량비도 $21.0{\sim}24.9{\times}10^{-4}$ 으로 해수의 $34.7{\times}10^{-4}$ 에서 벗어나고 있어서 물-암석반응에 의해서도 영향을 받았음을 지시한다.

사고 누출 화학물질 중 강산의 생산, 사용 현황 및 사고 사례 분석

신도연,문희선,윤윤열,윤욱,이윤호,하규철,현성필,Shin, Doyun,Moon, Hee Sun,Yoon, Yoon Yeol,Yun, Uk,Lee, Yunho,Ha, Kyoochul,Hyun, Sung Pil 한국지하수토양환경학회 2014 지하수토양환경 Vol.19 No.6

We reviewed literature focusing on the amounts of domestic production, distribution, and consumption of strong acids and their spill cases. In particular, we investigated the chemistry and toxicity of four strong acids classified as "accident preparedness substances," including hydrochloric, nitric, sulfuric, and hydrofluoric acid. We recommend sulfuric and hydrofluoric acid as the chemicals of priority control based on the amounts used and toxicity. An advanced prevention/response system needs to be established along with an improved human and social infrastructure to prevent and efficiently respond to chemical accidents. Understanding the behavior and transport of spilled strong acids in the soil and groundwater environments requires a multi-disciplinary approach since they go through a variety of chemical and biogeochemical reactions with complex geomedia. However, no such research has been done in this area in Korea to the best of our knowledge. We expect the results of this study to contribute as basic data to future research.

논문 : 수위-유량 관계곡선을 이용한 수막재배용 지하수 사용량 추정

이봉주 ( Bong Joo Lee ),김용철 ( Yong Cheol Kim ),조병욱 ( Byung Wook Cho ),윤욱 ( Uk Yoon ),하규철 ( Kyool Chul Ha ),이병대 ( Byeong Dae Lee ),문상호 ( Sang Ho Moon ),윤필선 ( Phil Sun Yoon ),김성윤 ( Sung Yun Kim ) 대한지질공학회 2015 지질공학 Vol.25 No.1

수위-유량 관계곡선을 이용한 동절기 수막재배기간의 지하수 사용량 추정 방법을 제시하고, 이를 논산 왕전리 수막재배 지역에 현장 적용하였다. 연구지역의 동절기 수막재배 기간의 농수로수의 구성성분은 주로 지하수와 강우의 직접 유출 성분으로 구성된다. 농수로 수위를 관측하고, 강우에 의한 농수로 수위 상승분을 수위 관측 자료로 부터 제거시키기 위해 기저유출분리법을 적용하였다. 강우에 의한 수위 상승분이 제거된 농수로 수위자료에 수위-유랑 관계를 적용하여 연구지역의 수막재배용 지하수 배출량을 산출하였다. 왕전리 지역의 수막재배용 지하수 사용량은 평균 10,900 m3/d, 420m3/d/ha인 것으로 추정되었다. 추정 지하수 사용량(420 m3/d/ha)과 전국의 수막재배면적(10,746 ha), 그리고 연간 수막재배일수(120 days/year)을 기준한 전국 규모의 수막재배용 지하수 사용량은 5억 4천만 m3에 이른다. 이는 농업용 지하수연간 사용량(약 17 억 m3)의 약 32%에 달한다. A method is proposed to estimate groundwater usage for water curtain cultivation (WCC) using a rating curve, and it is applied to field measurements of groundwater discharge used for WCC in Wangjeon-ri, Nonsan. During the winter season, the hydraulic components of irrigation ditches in the study area consist mainly of direct run-off and groundwater discharged from nearby pumping wells. Changes in stage of the ditches were monitored, and a baseflow separation method was applied to remove increments in stage due to direct run-off. The resulting records of stage were translated to groundwater discharge by applying the-stage-discharge relation. The estimated average groundwater discharge for the WCC in Wangjeon-ri was 10,900 m3/d or 420 m3/d/ha when the estimation is normalized by the total area for WCC facilities of this region. Applying this estimation (420 m3/d/ha) to the entire area of the WCC in Korea (10,746 ha),and considering the number of pumping days for the WCC (120 days/year), the total ground water usage for the WCC nation-wide is estimated to be 0.54 billion m3. This is equivalent to 32% of the total groundwater discharge for agricultural use in Korea (1.7 billon m3).

産業體 勤勞靑少年의 敎育制度에 關한 評價硏究

윤욱,이상안,김규수 대구대학교 (한사대학) 사회복지연구소 1981 社會福祉硏究 Vol.10 No.-

Ⅰ. The background and premises. A man pursues values through institutions or resources. As shown in Table I . Table I. Interrelationship values and institution. Value - Well-being, Wealth, Enlightenment, Skill Institution - Hospital-clinic, Business, Education, Occupation The so-called various type of values, shown by Table I is achieved through each institution in our society. And generally, human beings need socialization which will generate human competence and self-actualization. Ⅱ. Purpose of the study. This paper is aimed at solving the problems of theeducational system of working youth in the job field. Its object?ve poses questions with regard to three aspects of the problem. Beginning with aspect I, it is important that almost all public educational costs should be implemented in the most efficient manner and fixed by institutional policy measures. Thus, its eductional effects will differ, depending on whether the educational cost is obtained and stocked by a steady find or an unsteady fund, or by random monetary support. When we turn to aspect 2, it is more evident that the mobility of working youth in the job field may be inthervened in proceeding school life, that is, studying in class, with regard to aspects of I . As a result, this is aimed at illustrating how the educational cost and mobility will effect the educational stabilization. Finally, we will try to reduce the various types of internal variables and external variables. Ⅲ. Various types for built in stabilization First, To build up the fund of scholarships for the working youth in the job field. Second, To construct an information system for job interrelationships among industry circles by a public institution or a private one. Third, To step up a social welfare policy by producing and generating the morale including performance motives. Fourth, To combine the education and occupation by coordinating the working students and the enterprises. Ⅳ. Conclusion. As a study in educational system of working students this volume deals with educational conditions with regard to educational cost and mobility. In discussing the topics, we asked to determine how institutions are to be used efficiently. In summary, if these conditions are met, all members of the working school boys and girls will enjoy benefits which will be realized by self-actualization. Thus, the solution will be linked to the success we desire.