| “零排放”复合生物净化模式用于循环水养鲍系统的试验研究 |
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| 引用本文： | 李秀辰,张国琛,张敏.“零排放”复合生物净化模式用于循环水养鲍系统的试验研究[J].农业工程学报,2007,23(1):173-178. |
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| 作者姓名： | 李秀辰 张国琛 张敏 |
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| 作者单位： | 大连水产学院机械工程学院,大连,116023 |
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| 基金项目： | Science and technology Bureau,Liaoning Province |
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| 摘 要： | 采用水生植物滤池(UB和PUB)和固定膜生物滤池（SB）的复合净化模式，对鲍鱼养殖水体和系统排放水体进行净化，实现了循环水养鲍系统的清洁生产。试验结果表明，植物滤池UB对养殖水体中总氨氮(TAN)具有很高的吸收效率，从而降低了SB的硝化负荷，大大减少了TAN、NO－2-N、NO－3-N和COD的积累，在整个试验过程中，养殖水体中TAN、NO－2-N、NO－3-N和COD的浓度分别低于0.19、0.01、1.75和1.20 mg/L。由于UB滤池的吸收作用和SB的硝化作用，养殖水体中PO3-4的浓度一直保持在0.30 mg/L以下。另外，这种复合净化模式具有调节水体pH值的作用，在试验期间，养殖水体中的pH值一直保持在8.11～8.14的良好水质范围，对鲍鱼的养殖十分有利。系统排放水经另一植物滤池PUB吸收净化后，PO3-4浓度降至0.22 mg/L 以下，NO-3-N的浓度甚至降至0.10 mg/L以下。本文还建立了养殖循环水体中无机氮的循环模型，用于对养殖水体中TAN、NO－2-N和NO－3-N的预测和控制。
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| 关 键 词： | 水产养殖 鲍鱼 水质 复合生物净化 零排放 |
| 文章编号： | 1002-6819(2007)1-0173-06 |
| 收稿时间： | 2006/5/18 0:00:00 |
| 修稿时间： | 2006-05-18 |
Zero-discharge model of combined biofilters in recirculating abalone culture system |
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| Li Xiuchen,Zhang Guochen and Zhang Min.Zero-discharge model of combined biofilters in recirculating abalone culture system[J].Transactions of the Chinese Society of Agricultural Engineering,2007,23(1):173-178. |
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| Authors: | Li Xiuchen Zhang Guochen and Zhang Min |
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| Institution: | (1964-), female, professor, Ph. D., Research Area: Aquaculture Engineering. School of Mechanical Engineering, Dalian Fisheries University, Dalian 116023, China. Email:lxc@dlfu.edu.cn;School of Mechanical Engineering, Dalian Fisheries University, Dalian 116023, China;School of Mechanical Engineering, Dalian Fisheries University, Dalian 116023, China |
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| Abstract: | Combined biofilters consisting of an ulva biofilter(UB),a polishing ulva biofilter(PUB) and a sand biofilter(SB) were developed for purification of the rearing water and effluent water in recirculating abalone culture system.UBexhibited intensive uptake to total ammonia-nitrogen(TAN) in the rearing water,thereby reduced the nitrification loadingsof SB and lowered accumulation of TAN,NO2--N,NO-3-N and COD in the system.During the experiment,the concentra-tion of TAN,NO2--N,NO3--N and COD in the rearing water was kept below 0.19,0.01,1.75 and 1.20 mg/L,respec-tively.Due to the uptake of UB to PO34-and the nitrification of SB,the concentration of PO43-in the rearing water retainedto 0.30 mg/L during the operation period.The combined biofilters also had good capability of pH value buffering in therearing water and were able to maintain the pHvalue between 8.11~8.14 during the whole experiment.The concentrationof PO34-in the effluent water dropt to 0.22 mg/L and NO3--N level even dropt to 0.10 mg/L after further uptake by PUB.The inorganic nitrogen cycling models were established for estimating the changes of TAN,NO-2-N and NO3--N in therearing water. |
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| Keywords: | aquaculture abalone water quality combined biofilters zero-discharge |
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