초록 ▼

1. 제1세부과제: 수처리시스템 개발 순환수처리 기술로 침지식 생물막 공법과 유동층 생물막 공법을 적용한 결과 기존의 생물막 공법보다 개선된 결과를 얻었고 기존의 수처리 시스템에서 문제점으로 남아있던 질산성 질소의 제거를 위한 유동층 탈질소화법도 제시 하였다. 양어장 슬러지의 작물비료효과도 연구하여 재활용방안이 제기되엇다. 2. 제2세부과제: 시설물 종합설계시스템 개발 순환여과식 양어시설의 종합설계시스템과 관련하여 사육수조의 설계인자를 도출하고 수조의 평면현상과 단면현상 및 수조내의 물 순환장치에 따른 수조내의 유동구조를 정량적으로

1. 제1세부과제: 수처리시스템 개발 순환수처리 기술로 침지식 생물막 공법과 유동층 생물막 공법을 적용한 결과 기존의 생물막 공법보다 개선된 결과를 얻었고 기존의 수처리 시스템에서 문제점으로 남아있던 질산성 질소의 제거를 위한 유동층 탈질소화법도 제시 하였다. 양어장 슬러지의 작물비료효과도 연구하여 재활용방안이 제기되엇다. 2. 제2세부과제: 시설물 종합설계시스템 개발 순환여과식 양어시설의 종합설계시스템과 관련하여 사육수조의 설계인자를 도출하고 수조의 평면현상과 단면현상 및 수조내의 물 순환장치에 따른 수조내의 유동구조를 정량적으로 파악하기 위한 수리모형 실험결과와 수치모델의 적용결과를 제시하였다. 본 연구결과로부터 사육수조의 설계시에 시행착오를 거치지 않고 안전하고 효과적으로 설계할 수 있는 기초자료를 얻을 수 잇다. 사육수조로부터 발생하는 노폐물의 체류시간을 최소화할 수 있는 노폐물배출장치를 제시하고 수리모형 실험결과로부터 그 적용성을 확인하였다. 침전수조의 설계에 있어서 공정관리가 단순하고 경제적이고 효율적인 plate형의 침전수조모델을 제시하고, 이러한 침전수조에 의하여 노폐물의 입경이 100㎛ 정도까지의 노폐물까지 침전시켜 제거할 수 있음을 보였다. 본 연구개발결과 시설물 종합설계의 최적시스템을 제시하여 실제 현지에서 안전하고 경제적인 설계에 활용될 수 있을 것으로 본다. 3. 제3세부과제: 종합관리시스템 개발 퍼스널 컴퓨터와 8096 마이크로프로세서를 이용하여 양어장 수조의 환경을 제어, 감시하는 자동화 시스템을 개발하여, 파이롯 플랜트와 실시스템을 대상으로하여 실험을 통해, 다음과 같은 결과를 얻었다. ▶고비용, 고임용 시대를 맞아 양어장의 경영합리화를 구축할 수 있다. ▶본 연구에서 개발한 시스템은 기존의 PLC 자동화 장치에 비해 안전성과 유연성면에서 우수하다. ▶Dual개념을 사용하여 타 시스템의 감시도 병행함으로서 시스템의 이상 상태 발생에 대한 대처 능력을 부여하였다.

Abstract ▼

Ⅰ. Water Treatment System Development The accumulation of the nitrate and nitrite, which were produced by the fish's metabolism and unconsumed food, have very injurious affects to livers in the rearing tank of the recycling aquaculture system. This study was researched about process for nitrificatio

Ⅰ. Water Treatment System Development The accumulation of the nitrate and nitrite, which were produced by the fish's metabolism and unconsumed food, have very injurious affects to livers in the rearing tank of the recycling aquaculture system. This study was researched about process for nitrification and denitrofiation by using biofilter and fludized bed reactor, and we tried to become more effective, economical, safe system than conveniently operating method by testing character about manor effectiveness for reusing of sludge put out from aquaculture. The study about recycling water treatment was performed on both the intrification and organic removal by operating the lab scale and pilot plant and the denitrification by lab scale. At this time, the biofilter reactor was a fixed bad and a fludized bed process. The fixed biological reactor was divided with two processes of directed and indirected aeration, of which media was bio-ceramic, ring, plat and saran plus yogurt. The media of fludized bed reactor was activated carbon and an crushed waste tire. The study about equipment of water treatment was put on character of each reactor according to variable loading rates of hydraulic and pollutant material. And conducted to investigate the affect of pepper, tomato and petunia growth by aquaculture waste sludge contents. And it proved the effective results about pepper, tomato and petunia growth by aquaculture waste sludge contents. The study about Ozonation of aquaculture water was performed with Tilapia rearing water and Eel rearing water. The experment of microfilteration to the aquaculture water was performed. Ⅱ. Comprehensive Design System Development for the Closed Aquaculture System A hydraulic optimum designs of the rearing basins and the settling tank in the closed aquaculture system, which is important for the effective removals of the sludge caused in the system, was studied. A comprehensive design system which is favorable in the process control and the economic viewpoints was discussed. To determine the optimum designs of the system, a series of the hydraulic model experiments, the numerical model experiments and the theoretical analysis were used. Then some important design factors of the rearing basing were suggested and the effects of the design factors which exerts an important influence upon to the flow structure of the basins, were analyzed quantitatively. A simple sludge discharge tank which can minimize the residence time of the sludge caused in the rearing basins is proposed, then the field applicability was verified through the hydraulic experiments. A plate type settling tank model which can settle the fine grained sludge of 100㎛ order was proposed. Finally, the optimum design model of the comprehensive design for the closed aquaculture system was proposed, and the process control and the commercial applicability were discussed. Ⅲ. Total Management System Development for the Closed Aquaculture System This research applies the advanced monitoring technology to fresh water aquaculture industry so that the aquaculture will be changed to the secondary industry from the primary industry and can produce high added-value products. The advanced countries in aquaculture such as Japan and Norway have developed and used many kinds of high technology equipments for aquacage automation, while Korean aquaculture is still depending on high labor intensity and acknowledge for automation is not widespread. In Korea, aquaculture industry in shallow sea began in the late 1960s. Seavater and inland water aquaculture industries are remarkably expanded and those are changing from the primary industry to the secondary industry. According to the industrialization the advanced aquaculture equipments are going to appling to wide fields. However, the independent technology development of the automation devices has been delayed by using as it is or modified equipments made in advanced contries such as Japan, Norway, etc., and also this makes hard to get the service in order to repair the broken system. In stead of using the imported instruments as it is, after improving of the equipments which are fitted to our circumstance suppling them to domestic aquaculture industries is very interesting thing. furthermore, also the following facts are very important : we develop the advanced instruments based on ourself technology, make use them to the practical plant and in near future we expect to export them to the undeveloped countries. Nowdays, the water quality is getting worse because of an inflow of living sewage, accumlation of feed and waste matter etc. as well as a red tide, inflex of cool water, and an infectious disease are bruing up more frequently. According to these problems, an environment control and monitoring system becomes essential one to get the high productivity aquacages. Aquarium is apt to have bad envirionmental conditions because so many fishes are fed in very small space relatively. Expecially DO and temperature values have an importatnt effect not only aquaculture prodcutivity but also growth condition of fishes. So an insignificant mistake often lead to kill numerous fishes. Aquaculture automation accordingly make to reduce labor cost and be able to observe changes of physical and chemical circumstance of aquacages as well as efficiently to maintain proper envirionmental condition for fisheries resources. Therefore it is necessary to develop the aquaculture automation system and the remote monitoring system. In the study, an aquaculture monitoring and automation system was developed. The effectiveness was proven through the experimental results for the pilot plant and practical plants. The developed system was installed at two real aquacages(Dae-cheon Fisheries High-school and Pukyong National University. In this system, all the aquariums with the sensors such as water level, temperature, pH, DO etc. have individually a control panel including one-chip microprocessor. a monitoring PC gathers the data in real time which are digitalized in the control panel and transfered through serial communication line. The management software supervises all signals to regulate proper condition and to make alarm at the emgerncy state accidents. According to the control strategy, also, the system can manage the feeding subsystem. By adopting an image processing concept based on the CCD camera a monitoring system was developed to monitor the aquacage circumstance and to analyze the motion for a targeted subject. As the primary research subjects we develop a total management system applying for the aquaculture system through its experimental test and improvement of the problem during three years by implementing the system to a bench water tank, a pilot plant, and a field plant progressively. The detail contents to the developed are as the following; - One-chip microprecessor board and hardware interfaces which can communicate the enviromental data of aquariums at the near or far distance. Software modules for multi-processor communication by RS-232C or RS-422/485 protocols. - Real-time monitoring program package for MS-Windows 95. - Hardware and software for long-distance data communication on the public telephone line. -Construction of emergency service system. - Unification of vision system and monitoring system.

목차 Contents

• 제1장 서론...39
• 제2장 수처리시스템의 개발...40
• 제3장 순환여과식 양어시설의 종합설계시스템 개발...218
• 제4장 종합관리 시스템 개발...336
• 제1절 서론...336
• 제2절 양어장 종합관리 시스템의 하드웨어 구성...337
• 제3절 소프트웨어 개발...377
• 제4절 연구 실적 사례...395
• 제5절 자동화 및 모니터링 시스템의 공정 관리 방안...401
• 제6절 경제성 평가...404
• 제7절 결론...406
• 제5장 결론...408
• 참고문헌...415