本文關(guān)鍵詞： 濕地模型 凈水效果 脲酶活性 磷酸酶活性 相關(guān)性　出處：《水生生物學報》2017年03期 　論文類型：期刊論文

【摘要】：為了研究不同植物和基質(zhì)組合的小型濕地模型凈水效果及其與基質(zhì)酶活性(脲酶和磷酸酶)之間的相關(guān)性,并選出凈水效果最佳的模型,通過對兩種植物(茭白和慈姑)和兩種基質(zhì)(石榴石和磁鐵礦)進行組合構(gòu)建不同的濕地模型,對不同濕地模型進出水口水質(zhì)和基質(zhì)酶活性進行測定并加以分析進行優(yōu)化選擇。結(jié)果表明:濕地模型對亞硝態(tài)氮的去除率最高,最高能達到98.87%,最低也能達到58.06%,對高錳酸鹽的去除率最低,最高37.91%,最低2.51%;濕地模型X5-X6對各污染物的去除率基本上都比X1-X4高,總氮去除率平均高3%,氨氮去除率平均高10%,亞硝態(tài)氮去除率平均高10%,總磷去除率平均高15%,正磷酸鹽去除率平均高20%,高錳酸鹽去除率平均高8%;在相同種植數(shù)量的情況下,茭白和慈姑混合種植的濕地模型總體上比茭白和慈姑單一種植的濕地模型具有更好的凈水效果,是實驗中的最佳濕地模型;濕地模型的脲酶活性與總氮去除率具有顯著的相關(guān)性(相關(guān)系數(shù)為0.903—0.980),脲酶可作為判定人工濕地去除養(yǎng)殖水體中總氮效能的指標,濕地模型磷酸酶活性與高錳酸鹽去除率總體上具有顯著相關(guān)性(相關(guān)系數(shù)為0.821—0.992),磷酸酶可作為判定人工濕地去除養(yǎng)殖水體中高錳酸鹽效能的指標。研究為人工濕地植物和基質(zhì)優(yōu)化選擇和基質(zhì)酶活性評價凈水效果提供了理論依據(jù)。
[Abstract]:In order to study the water purification effect of small wetland model with different plant and substrate combinations and its correlation with substrate enzyme activity (urease and phosphatase), the best model was selected. Different wetland models were constructed by combining two kinds of plants (Zizania latifolia and Artemisia latifolia) and two substrates (garnet and magnetite). The water quality and substrate enzyme activity of different wetland models were determined and optimized. The results showed that the removal rate of nitrite nitrogen by wetland model was the highest and the highest was 98.87%. The lowest can reach 58.06, the removal rate of permanganate is the lowest, the highest is 37.91 and the lowest is 2.51. The removal rate of each pollutant in the wetland model X5-X6 was basically higher than that in X1-X4, the removal rate of total nitrogen was higher than that of X1-X4, the average removal rate of ammonia nitrogen and nitrite nitrogen was higher than that of X1-X4, the average removal rate of ammonia nitrogen and nitrite nitrogen was 10% and 10% respectively. The average removal rate of total phosphorus is 15%, the removal rate of orthophosphate is 20%, the removal rate of permanganate is 8%; Under the same planting quantity, the wetland model with mixed planting of Zizania latifolia and Cagitaria had better water purification effect than the wetland model with single planting of Zizania latifolia and Cagitaria latifolia, and was the best wetland model in the experiment. There was a significant correlation between urease activity and total nitrogen removal rate in wetland model (correlation coefficient was 0.903-0.980). Urease could be used as an index to determine the efficiency of artificial wetland in removing total nitrogen in aquaculture water. There was a significant correlation between phosphatase activity in wetland model and permanganate removal rate (correlation coefficient was 0.821-0.992). Phosphatase can be used as an index to determine the efficiency of manganate removal from mariculture water by artificial wetland, which provides a theoretical basis for the optimal selection of plants and substrates and the evaluation of water purification effect by substrate enzyme activity.
【作者單位】： 南京農(nóng)業(yè)大學無錫漁業(yè)學院;中國水產(chǎn)科學研究院淡水漁業(yè)研究中心農(nóng)業(yè)部淡水漁業(yè)和種質(zhì)資源利用重點實驗室;
【基金】：“十二·五”國家科技支撐計劃項目(2012BAD25B07) 中央級公益性科研院所基本科研業(yè)務(wù)費專項(2015JBFM24) 國家大宗淡水魚類產(chǎn)業(yè)技術(shù)體系項目(nyeytx-46)資助~~
【分類號】：X714
【正文快照】： 我國是世界上水資源嚴重缺乏的國家之一,水質(zhì)污染和水資源浪費問題日漸嚴峻[1]。在水產(chǎn)養(yǎng)殖過程中,未經(jīng)處理的養(yǎng)殖廢水直接排放,會污染外在的生態(tài)環(huán)境。因此,有效的水處理措施能夠凈化污水,對于維護健康的水域生態(tài)環(huán)境,保障水產(chǎn)品質(zhì)量安全和漁業(yè)經(jīng)濟發(fā)展等具有重要意義具有十

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