养殖固体废弃物作碳源的海水养殖废水反硝化净化效果
由于养殖废水C/N低且溶解氧（DO）含量高,需要补充碳源并有效脱氧,才能保证高效反硝化。该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研究。结果表明,养殖废水（水解种污泥与养殖固体废弃物体积比为1：1、水温20℃）经过10h水解,水解液DO质量浓度降至0.2mg/L,NH4^＋-N、NO3^--N、总有机物（TCOD）和总固体（TS）的去除率分别为62.8%、43.5%、24.0%和13.6%。当水解种污泥与养殖固体废弃物体积比为1：1.5～1：2.5时,养殖废水在20℃条件下水解6h,水解液中挥发性脂肪酸（VFA）质量浓度和溶解性有机物/总有机物（SCOD/TCOD...
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| Published in | Nong ye gong cheng xue bao Vol. 26; no. 4; pp. 275 - 279 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
大连海洋大学机械工程学院,大连,116023
2010
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.3969/j.issn.1002-6819.2010.04.047 |
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| Abstract | 由于养殖废水C/N低且溶解氧（DO）含量高,需要补充碳源并有效脱氧,才能保证高效反硝化。该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研究。结果表明,养殖废水（水解种污泥与养殖固体废弃物体积比为1：1、水温20℃）经过10h水解,水解液DO质量浓度降至0.2mg/L,NH4^＋-N、NO3^--N、总有机物（TCOD）和总固体（TS）的去除率分别为62.8%、43.5%、24.0%和13.6%。当水解种污泥与养殖固体废弃物体积比为1：1.5～1：2.5时,养殖废水在20℃条件下水解6h,水解液中挥发性脂肪酸（VFA）质量浓度和溶解性有机物/总有机物（SCOD/TCOD）分别增加32.0%～49.3%和3.5%～9.1%。利用厌氧活性污泥对养殖废水的水解液（体积比为1：4、水温20℃）进行反硝化净化,NO3^--N和TCOD的3h去除率分别达99.6%和88.3%,而养殖废水直接反硝化10h,NO3^--N和TCOD的去除速率分别为36.5%和75.9%。这表明,在海水循环水养殖系统中,利用养殖固体废弃物作碳源,养殖废水水解、反硝化工艺,能有效脱氧和补充有机碳源,养殖废水反硝化净化效果显著。 |
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| AbstractList | S955.1; 由于养殖废水C/N低且溶解氧(DO)含量高,需要补充碳源并有效脱氧,才能保证高效反硝化.该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研究.结果表明,养殖废水(水解种污泥与养殖固体废弃物体积比为1:1、水温20℃)经过10 h水解,水解液DO质量浓度降至0.2 mg/L,NH4+-N、NO3--N、总有机物(TCOD)和总固体(TS)的去除率分别为62.8%、43.5%、24.0%和13.6%.当水解种污泥与养殖固体废弃物体积比为1:1.5～1:2.5时,养殖废水在20℃条件下水解6 h,水解液中挥发性脂肪酸(VFA)质量浓度和溶解性有机物/总有机物(SCOD/TCOD) 分别增加32.0%～49.3%和3.5%～9.1%.利用厌氧活性污泥对养殖废水的水解液(体积比为1:4、水温20℃)进行反硝化净化,NO3--N和TCOD的3 h去除率分别达99.6%和88.3%,而养殖废水直接反硝化10 h, NO3--N和TCOD的去除速率分别为36.5%和75.9%.这表明,在海水循环水养殖系统中,利用养殖固体废弃物作碳源,养殖废水水解、反硝化工艺,能有效脱氧和补充有机碳源,养殖废水反硝化净化效果显著. 由于养殖废水C/N低且溶解氧（DO）含量高,需要补充碳源并有效脱氧,才能保证高效反硝化。该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研究。结果表明,养殖废水（水解种污泥与养殖固体废弃物体积比为1：1、水温20℃）经过10h水解,水解液DO质量浓度降至0.2mg/L,NH4^＋-N、NO3^--N、总有机物（TCOD）和总固体（TS）的去除率分别为62.8%、43.5%、24.0%和13.6%。当水解种污泥与养殖固体废弃物体积比为1：1.5～1：2.5时,养殖废水在20℃条件下水解6h,水解液中挥发性脂肪酸（VFA）质量浓度和溶解性有机物/总有机物（SCOD/TCOD）分别增加32.0%～49.3%和3.5%～9.1%。利用厌氧活性污泥对养殖废水的水解液（体积比为1：4、水温20℃）进行反硝化净化,NO3^--N和TCOD的3h去除率分别达99.6%和88.3%,而养殖废水直接反硝化10h,NO3^--N和TCOD的去除速率分别为36.5%和75.9%。这表明,在海水循环水养殖系统中,利用养殖固体废弃物作碳源,养殖废水水解、反硝化工艺,能有效脱氧和补充有机碳源,养殖废水反硝化净化效果显著。 |
| Author | 李秀辰 李俐俐 张国琛 牟晨晓 母刚 |
| AuthorAffiliation | 大连海洋大学机械工程学院,大连116023 |
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| Author_FL | Li Lili Mu Gang Li Xiuchen Mu Chenxiao Zhang Guochen |
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| Keywords | 水解 固体废弃物 净化 废水 海水循环水养殖 反硝化 |
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| Snippet | 由于养殖废水C/N低且溶解氧（DO）含量高,需要补充碳源并有效脱氧,才能保证高效反硝化。该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研究。结果... S955.1; 由于养殖废水C/N低且溶解氧(DO)含量高,需要补充碳源并有效脱氧,才能保证高效反硝化.该文开展了以养殖固体废弃物作碳源,海水养殖废水水解、反硝化净化工艺的试验研... |
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| SubjectTerms | 净化 反硝化 固体废弃物 废水 水解 海水循环水养殖 |
| Title | 养殖固体废弃物作碳源的海水养殖废水反硝化净化效果 |
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