{"title":"利用室内营养膜技术水培系统有效去除水产养殖废水中的营养物质","authors":"M. Rajalakshmi, K. Gunasekaran","doi":"10.1002/tqem.22262","DOIUrl":null,"url":null,"abstract":"<p>Aquaculture wastewater treatment must remove nutrients to prevent eutrophication of receiving waters and to allow for possible re-use of the treated water. This study aims to evaluate the shoot and root growth of crops produced in Nutrient Film Technique hydroponic systems and treat aquaculture wastewater using phytoremediation. The average physico-chemical parameters of the aquaculture wastewater during the study period were pH 6–6.4, temperature 25°C–27°C, EC 0.7–0.8 mS/cm, and total dissolved solids (420–560 ppm). The operating conditions of hydroponic treatment units were hydraulic loading rate of 857.28 m/day, hydraulic retention time of 0.3 h, organic loading rate of 12567.8 Ibs-BOD<sub>5</sub>/ft^2/day (BOD<sub>5</sub> is 5 – day Biochemical Oxygen Demand) and flow rate of 54 L/h. The study found that the average elimination efficiency of nitrate-nitrogen in aquaculture wastewater treatment varied from 78.28% by Money plants (<i>Epiprennum aureum</i>), 71% by Crotons (<i>Codiaeum varigatum</i>), 70.25% by Arrowhead plants (<i>Syngonium podophyllum</i>), 67.25% by Purple Heart (<i>Tradescantia pallida</i>), 68.62% by for Spinach (<i>Spinacea oleracia</i>), and 42.85% by Brinjal plants (<i>Solanum melongena</i>). The average removal effectiveness of BOD<sub>5</sub> varied from 71.07% by Money plants (<i>Epiprennum aureum</i>), 68.62% by Crotons (<i>Codiaeum varigatum</i>), 78% by Arrowhead plants (<i>Syngonium podophyllum</i>), 72% by Purple Heart (<i>Tradescantia pallida</i>), 68% by Spinach (<i>Spinacea oleracia</i>), and 70% by Brinjal plants (<i>Solanum melongena</i>). Thus, environmentally friendly and economically advantageous method for reducing and removing nitrate-nitrogen and BOD<sub>5</sub> from aquaculture effluent is hydroponic phytoremediation.\n\n </p>","PeriodicalId":35327,"journal":{"name":"Environmental Quality Management","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effective nutrient removal from aquaculture wastewater utilizing an indoor nutrient film technique hydroponic system\",\"authors\":\"M. Rajalakshmi, K. Gunasekaran\",\"doi\":\"10.1002/tqem.22262\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Aquaculture wastewater treatment must remove nutrients to prevent eutrophication of receiving waters and to allow for possible re-use of the treated water. This study aims to evaluate the shoot and root growth of crops produced in Nutrient Film Technique hydroponic systems and treat aquaculture wastewater using phytoremediation. The average physico-chemical parameters of the aquaculture wastewater during the study period were pH 6–6.4, temperature 25°C–27°C, EC 0.7–0.8 mS/cm, and total dissolved solids (420–560 ppm). The operating conditions of hydroponic treatment units were hydraulic loading rate of 857.28 m/day, hydraulic retention time of 0.3 h, organic loading rate of 12567.8 Ibs-BOD<sub>5</sub>/ft^2/day (BOD<sub>5</sub> is 5 – day Biochemical Oxygen Demand) and flow rate of 54 L/h. The study found that the average elimination efficiency of nitrate-nitrogen in aquaculture wastewater treatment varied from 78.28% by Money plants (<i>Epiprennum aureum</i>), 71% by Crotons (<i>Codiaeum varigatum</i>), 70.25% by Arrowhead plants (<i>Syngonium podophyllum</i>), 67.25% by Purple Heart (<i>Tradescantia pallida</i>), 68.62% by for Spinach (<i>Spinacea oleracia</i>), and 42.85% by Brinjal plants (<i>Solanum melongena</i>). The average removal effectiveness of BOD<sub>5</sub> varied from 71.07% by Money plants (<i>Epiprennum aureum</i>), 68.62% by Crotons (<i>Codiaeum varigatum</i>), 78% by Arrowhead plants (<i>Syngonium podophyllum</i>), 72% by Purple Heart (<i>Tradescantia pallida</i>), 68% by Spinach (<i>Spinacea oleracia</i>), and 70% by Brinjal plants (<i>Solanum melongena</i>). Thus, environmentally friendly and economically advantageous method for reducing and removing nitrate-nitrogen and BOD<sub>5</sub> from aquaculture effluent is hydroponic phytoremediation.\\n\\n </p>\",\"PeriodicalId\":35327,\"journal\":{\"name\":\"Environmental Quality Management\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.5000,\"publicationDate\":\"2024-05-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Quality Management\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/tqem.22262\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ENGINEERING, ENVIRONMENTAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Quality Management","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/tqem.22262","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ENVIRONMENTAL","Score":null,"Total":0}
Effective nutrient removal from aquaculture wastewater utilizing an indoor nutrient film technique hydroponic system
Aquaculture wastewater treatment must remove nutrients to prevent eutrophication of receiving waters and to allow for possible re-use of the treated water. This study aims to evaluate the shoot and root growth of crops produced in Nutrient Film Technique hydroponic systems and treat aquaculture wastewater using phytoremediation. The average physico-chemical parameters of the aquaculture wastewater during the study period were pH 6–6.4, temperature 25°C–27°C, EC 0.7–0.8 mS/cm, and total dissolved solids (420–560 ppm). The operating conditions of hydroponic treatment units were hydraulic loading rate of 857.28 m/day, hydraulic retention time of 0.3 h, organic loading rate of 12567.8 Ibs-BOD5/ft^2/day (BOD5 is 5 – day Biochemical Oxygen Demand) and flow rate of 54 L/h. The study found that the average elimination efficiency of nitrate-nitrogen in aquaculture wastewater treatment varied from 78.28% by Money plants (Epiprennum aureum), 71% by Crotons (Codiaeum varigatum), 70.25% by Arrowhead plants (Syngonium podophyllum), 67.25% by Purple Heart (Tradescantia pallida), 68.62% by for Spinach (Spinacea oleracia), and 42.85% by Brinjal plants (Solanum melongena). The average removal effectiveness of BOD5 varied from 71.07% by Money plants (Epiprennum aureum), 68.62% by Crotons (Codiaeum varigatum), 78% by Arrowhead plants (Syngonium podophyllum), 72% by Purple Heart (Tradescantia pallida), 68% by Spinach (Spinacea oleracia), and 70% by Brinjal plants (Solanum melongena). Thus, environmentally friendly and economically advantageous method for reducing and removing nitrate-nitrogen and BOD5 from aquaculture effluent is hydroponic phytoremediation.
期刊介绍：
Four times a year, this practical journal shows you how to improve environmental performance and exceed voluntary standards such as ISO 14000. In each issue, you"ll find in-depth articles and the most current case studies of successful environmental quality improvement efforts -- and guidance on how you can apply these goals to your organization. Written by leading industry experts and practitioners, Environmental Quality Management brings you innovative practices in Performance Measurement...Life-Cycle Assessments...Safety Management... Environmental Auditing...ISO 14000 Standards and Certification..."Green Accounting"...Environmental Communication...Sustainable Development Issues...Environmental Benchmarking...Global Environmental Law and Regulation.
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