• Title/Summary/Keyword: 양식장 배출수

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Recycling Marine Fish Farm Effluent by Microorganisms (유용미생물을 이용한 육상수조식 양식장 배출물의 재활용)

  • 문상욱;이준백;이영돈;김세재;강봉조;고유봉
    • Journal of Aquaculture
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    • v.15 no.4
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    • pp.261-266
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    • 2002
  • The effluent sediment from the land-based seawater fish farms of Jeju consists of proteins, fats, ash and moisture. An evaluation of the effluent sediment as substrate for growth of phototrophic or lactic acid bacteria revealed that the sediment supported the growth of phototrophic bacteria but could support lactic acid bacteria only on supplementation with sugar. The possibility of using phototrophic bacteria for recycling the land-based seawater fish farm effluent is shown.

Distribution of Antibiotic Resistant Microbes in Aquaculture Effluent and Disinfection by Electron Beam Irradiation (양식장 배출수중의 항생제 내성균 분포 및 전자빔 살균처리)

  • Jang, Eun-Hee;Lim, Seung-Joo;Kim, Tak-Hyun
    • Journal of Korean Society of Environmental Engineers
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    • v.33 no.7
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    • pp.492-500
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    • 2011
  • Antibiotic resistant microbes were isolated in catfish, trout, eel and loach aquaculture effluent. The distribution of antibiotic resistant microbes in aquaculture effluent and the disinfection efficiency of antibiotic resistant microbes by electron beam irradiation were investigated. It was shown that the multi-drug resistant bacteria were Aeromonas sp., Citrobacter sp., Bacillus sp., Marinobacter sp., Pantoea sp., Pseudomonas sp. and Enterobacter sp. in aquaculture effluent. 41.7% of total strains showed the resistance against one antibiotic agent, and 58.3% of total strains showed the resistance against more than two antibiotics. It was evidently shown that the toxicity and physicochemical properties of antibiotics can be estimated using Quantitative Structure Analysis Relationship (QSAR). Electron beam irradiation was very effective for the disinfection of antibiotic resistant bacteria from aquaculture effluent, in which the disinfection efficiency was approximately 99.9% with electron beam of 1 kGy.

해산어 육상 축양장 배출수의 오존처리 효율

  • 조현서;장성원;박순현;김흥윤;윤조희;오명주
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2001.05a
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    • pp.273-274
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    • 2001
  • 국내에서의 양식장 패수는 최근까지 간단한 침전조만 거친 뒤 방류시켜 왔으며, 최근에 담수 양식장 폐수를 중심으로 활성오니법, 살수여상법둥의 생물학적 처리 방법에 대한 연구가 이루이지고 있다(김, 1995). 양식 어종 중 넙치의 경우 하루 먹이속에 있는 총질소의 40∼50%는 암모니아와 요소의 형태로 배설하고, 배출분의 형태로 약 8%를 배설한다(Kikochi et al., 1990, 1991; 김, 1998). (중략)

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Effects of oral administration with fermented product from sewage in land-based seawater fish farm on haematological factors of olive flounder, Paralichthys olivaceus (양식장 배출물 발효물의 어류 사료 첨가에 따른 넙치, Paralichthys olivaceus의 혈액학적 변동에 미치는 영향)

  • Gang, Ju-Chan;Ji, Jeong-Hun;Song, Seung-Yeop;Mun, Sang-Uk;Gang, Ji-Ung;Lee, Yeong-Don;Kim, Se-Jae
    • Journal of fish pathology
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    • v.17 no.1
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    • pp.57-66
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    • 2004
  • Effects of oral administration with fermented product from sewage in land-based seawater fish farm on haematological disturbance in the olive flounder, Paralichthys olivaceus was investigated. After 4 weeks of conditioning with a basal diet, fish were divided into 4 groups and provided experimental diet (0.1, 0.5, 1.0 and 2.0%) supplement of fermented sewage for 80 days. Proximal analysis was performed for the product of sewage which was fermented by lactic acid and yeast. RBC count, hemoglobin concentration and hematocrit value were increased according to the treated periods, however, no statistical difference was observed between control and treatment groups. There were no significant difference in serum organic, inorganic compounds and enzyme activities between control and treatment groups. This study hypothesized that the supplement of fermented product from sewage in land-based seawater fish farm might be an additive supplement for source of fish diet in view of haematological examination. Recycling of the sewage may be an economic artificial sources of diet for fish aquaculture practices.

Coastal Eutrophication caused by Effluent from Aquaculture Ponds in Jeju (제주연안 육상양식장 밀집지역 주변해역의 영양염 과잉 요인)

  • Koh, Hyuk-Joon;Park, Sung-Eun;Cha, Hyung-Kee;Chang, Dae-Soo;Koo, Jun-Ho
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.19 no.4
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    • pp.315-326
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    • 2013
  • This study investigated the temporal-spatial distribution and variations in water quality parameters (temperature, salinity, pH, DO, COD, SPM, DIN, DIP, silicate, TN, TP, and chlorophyll-a) in the coastal area of Jeju, Korea, adjacent to aquaculture ponds (Aewol-ri, Haengwon-ri, Pyosun-ri, and Ilkwa-ri). Data were collected bimonthly from February 2010 to December 2011. A principal component analysis (PCA) identified three major factors controlling variations in water quality during the sampling period. Aquaculture effluent water led to large changes in nutrient levels. The highest nutrient values were observed during the investigation period. The relatively large increase in organic matter at the sampling stations coupled with sea area runoff events during the summer rainy period. Variation in chlorophyll-a concentration was mainly driven by meteorological factors such as air temperature and rainfall in the coastal areas of Aewol and Haengwon. In the coastal areas of Pyosun and Ilkwa, pollution was caused by anthropogenic factors such as discharge of aquaculture effluent water. High nutrient concentrations at the majority of the coastal stations indicate eutrophication of coastal waters, especially within a distance of 300 m and depth of 10m from drainage channels. Coastal eutrophication driven by aquaculture effluent may be harmful inshore. Events such as eutrophication may potentially influence water pollution in aquaculture ponds when seawater intake is detected because of aquaculture effluent water.

Effect of plasma treatment using underwater non-thermal dielectric barrier discharge to remove antibiotics added to fish farm effluent (양식장 배출수에 첨가된 항생제 제거 위한 수중 비열 유전체장벽 방전 플라즈마 처리 효과)

  • Kyu Seok Cho;Han Seung Kang
    • Korean Journal of Environmental Biology
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    • v.40 no.4
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    • pp.641-650
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    • 2022
  • The purpose of this study was to compare the efficiency of air and oxygen injected into the underwater non-thermal dielectric barrier discharge plasma (DBD plasma) device used to remove five types of antibiotics (tetracycline, doxycycline, oxytetracycline, clindamycin, and erythromycin) artificially contained in the fish farm discharge water. The voltage given to generate DBD plasma was 27.8 kV, and the measurement intervals were 0, 0.5, 1, 2, 4, 8, 16 and 32 minutes. Tetracycline antibiotics significantly decreased in 4 minutes when air was injected and were reduced in 30 seconds when oxygen was injected. After the introduction of air and oxygen at 32 minutes, 78.1% and 95.8% of tetracycline were removed, 77.1% and 96.3% of doxycycline were removed, and 77.1% and 95.5% of oxytetracycline were removed, respectively. In air and oxygen, 59.6% and 83.0% of clindamycin and 53.3% and 74.3% of erythromycin were removed, respectively. The two antibiotics showed lower removal efficiency than tetracyclines. In conclusion, fish farm discharge water contains five different types of antibiotics that can be reduced using underwater DBD plasma, and oxygen gas injection outperformed air in terms of removal efficiency.

The Development of Filter for Environmental Improvement in Land Based Seawater Fish Farm II. Purification efficacy of Inlet and Outlet Seawater by Filter (필터의 개발을 통한 해수 육상수조식 양식장의 환경개선에 관한 연구 II. 필터 운행에 따른 유입수 및 배출수의 정화효과)

  • KANG Ju-Chan;PARK Soo-Il;KIM Seoung-Gun
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.31 no.6
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    • pp.914-919
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    • 1998
  • This study was conducted to evaluate the purification efficacy by filter and ultra violet (UV) irradiation against inlet and outlet seawater of the land based fish farm. Purification efficacies for inlet seawater (50$\ell$/min) has been examined with filter of 60$\mu$m pore size and UV irradiation at an average dose 0.5 mWS/$cm^2$ for 5 months. For outlet seawater filter of 90 $\mu$m pore size only was used. Temperature, salinity, pH, $NO_3-N,\;NO_2-N,\;NH_4-N,\;PO_4-P$, DO and COD of inlet and outlet seawater in the system were not influenced. However, the removing rate of suspended solid and turbidity of inlet seawater were appeared to be $48.7\~65.6\%$ (average $51.9\%$) and $33/3\~42/5\%$ (average $34.8\%$) after passing through screen filter respectively. Also, germicidal efficiency to the total bacteris and Vibrio species were $16.7\~20.2\%$ (average $19.2\%$) $20.0\~21.9\%$ (average $20.9\%$) respectively after passing through UV irradiation. After passing through drum filter of 90$\mu$m pore size, suspended solid and turbidity of outlet seawater were appeared to be $42.7\~52.6\%$ (average $46.9\%$), $27.7\~29.9\%$ (average $28.3\%$), respectively.

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The Development of Filter for Environmental Improvement in Land Based Seawater Fish Farm I. Development of Screen and Drum Filter (필터의 개발을 통한 해수 육상수조식 양식장의 환경개선에 관한 연구 I. 스크린 및 드럼 필터의 개발)

  • KIM Seoung-Gun;KANG Ju-Chan;PARK Soo-Il
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.31 no.6
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    • pp.908-913
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    • 1998
  • The productivity of land based seawater fish farm has been decreased because of unexpected outbreaks of diseases caused by the contaminated inlet seawater. Sometimes unfiltered/untreated outlet seawater from the land based seawater fish farm has created serious environmental problem. In the needs of treatment systems for the inlet and outlet seawater, the researchers have developed two different systems, The purpose of this study is to design and test two treatment systems, the screen filter for inlet seawater and drum filter for outlet seawater, on the basis of concept of system design and automatization. After developing two systems, an experiment has been conducted with two systems and collected data to improve design and efficiency of the system. In this study, detailed design and efficiency of the system could be improved by the programmable logic controller (PLC).

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