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막분리를 포함한 중수 시스템의 개발과 경제성 분석에 관한 연구
김병직,신훈식 崇實大學校 生産技術硏究所 1997 論文集 Vol.27 No.1
It was reported that the water source is not enough for water production in Korea. Thus it has become of interest to develop dual water production system which can reuse the waste water. This research was undertaken to see the technical and economic feasibility of using ultrafiltration technique as dual water separation. For technical feasibility study, dual water production system including membrane was set up. And three samples of different waste water sources, Shin Dong-A APT(residential waste water), Lotte World(commercial waste water), and Science Room(official waste water) were collected and purified by the dual water production system. The experimental analysis showed that the all permeates purified through UF membrane satisfied the standards for Korean dual water regulation. For economical feasibility study, the mathematical form of cost model was developed and the cost simulation program written by visual basic was developed. Payback period were evaluated for economic comparison of dual water vs. water. In most cases, payback periods are less than 5 years. Technical and economical feasibility study showed that the dual water production system including ultrafiltration was turned out to be promising technique.
이해정,신훈식,이혜진 세종연구소 2021 국가전략 Vol.27 No.1
Text mining analysis revealed that since the Kim Jong Un administration in 2012, the government has steadily emphasized the construction of an economic powerhouse and the improvement of people’s lives in order to realize the promise made in the early days of the regime that the people would not tighten their purse strings again. Analysis of documents published during the period of strengthening the power base (January 1, 2012-March 30, 2013), the period of promoting economic and nuclear translation (March 31, 2013-April 20, 2018), and the period of total economic construction (April 21, 2018-January 1, 2020) suggests that the people’s lives have been improved and the economic power has been emphasizing the importance of economic power. This is because the government aims to build a socialist nation by becoming an economic powerhouse in the Kim Jong Un era, following the ideological, political and military powers that North Korea claims to have achieved during the Kim Jong Il era. Kim Jong-eun has been emphasizing the construction of an economic powerhouse and the improvement of people’s lives. During the Kim Jong Un era, North Korea promoted pragmatic economic policies emphasizing the efficient use of resources and actively promoted economic development strategies centered on bases represented by economic development zones. If the North Korean-style economic management methods, which focuses on improving the autonomy of individual economic entities and increasing incentives, represents North Korea’s inward economic policy, the 23 newly established economic development zones since 2013 show the direction of North Korea’s outward economic policy. 텍스트 마이닝 분석 결과 2012년 김정은 집권 이후 인민들이 다시는 허리띠를 조이지 않게 하겠다는 집권 초기 약속을 실현하기 위해 꾸준히 “경제강국 건설”과 “인민생활 향상”을 강조한 것으로 나타났다. ① 권력기반 강화기(2012.1.1.~2013.3.30.), ② 경제․핵 병진노선 추진기(2013.3.31.~2018.4.20.), ③ 경제 건설 총력기(2018.4.21.~2020.1.1.)에 발표한 문서들에 대한 분석 결과, 모든 시기에 인민생활 향상과 경제강국을 공통적으로 강조하고 있는 것을 살필 수 있다. 이는 북한 스스로 김정일 시대에 이미 이룩하였다고 주장하는 사상강국, 정치강국, 군사강국에 이어 김정은 시대에는 경제강국을 실현하여 사회주의 강성국가를 건설하는 것을 국가 목표로 삼고 있기 때문이다. 이에 따라 김정은은 꾸준히 “경제강국 건설과 인민생활 향상”을 강조하고 있는 것으로 나타났다. 김정은 시대 북한은 자원의 효율적 이용을 강조하는 실용주의 경제정책을 추진하면서 경제개발구로 대표되는 거점 중심의 경제개발전략을 적극적으로 추진하고 있다. 개별 경제주체들의 자율성 제고 및 인센티브 확대 조치 등을 핵심으로 하는 우리식 경제관리방법이 북한의 대내경제정책을 대표한다면, 2013년 이후 신설된 23개의 경제개발구는 북한의 대외경제정책의 방향성을 보여주고 있다.
막분리를 포함한 중수 시스템의 개발과 경제성 분석에 관한 연구
김병직,신훈식 한국공업화학회 1998 응용화학 Vol.2 No.1
This research was undertaken to see the technical and economic feasibility of the dual water system using ultrafiltration membrane. For technical feasibility study, dual water production system including membrane was set up. And three samples of different waste water sources, residential waste water, commercial waste water), and official waste water were collected and purified by the dual water production system. The experimental analysis showed that the all permeates purified through UF membrance satisfied the standards for Korean dual water regulation. For economic feasibility study, the mathematical form of cost model was developed and the cost simulation which can evaluate the cost and do the economic feasibility study was programmed. Economic feasibility was represented in terms of pay-back period. Technical and economical feasibility study showed that the dual water production system including ultrafiltration was turned out to be a promising process.