| 袁志伟,李国莲,李肖,谢发之,朱曙光.蓝藻降解过程中营养盐的释放特征分析[J].安徽建筑大学学报,2022,30(): |
| 蓝藻降解过程中营养盐的释放特征分析 |
| Analysis of Nutrients Release Characteristics in the Decay Process of Cyanobacteris |
| 投稿时间：2021-01-28 修订日期：2021-04-14 |
| DOI： |
| 中文关键词: 蓝藻 降解 特征分析 营养盐 |
| 英文关键词: Cyanobacteria Degradation Characteristics Analysis Nutrient |
| 基金项目:安徽省教育厅重点项目(KJ2018A0507),安徽省科技攻关项目(202004i07020006S),国家自然科学基金(21777001) |
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| 中文摘要: |
| 以蓝藻在不同水环境条件（光照、有氧、湖泊水、超纯水）中进行降解实验，研究了降解液中pH、DO、叶绿素a、氮、磷含量变化，并进行了理化指标的相关性分析。实验结果表明：蓝藻在光照有氧A组实验条件下降解，水体叶绿素a含量在实验第16天达到1020.3μg/L峰值，而水体总溶解态磷（TDP）和水体总溶解态氮（TDN）在实验第30天分别达到极大值2.79mg/L和14.78mg/L；密封黑暗的C组实验条件下降解，水体叶绿素a含量在实验第7天降至127.9μg/L，降解率达76.96%，降解液中TDP在实验20d达到最大值3.56mg/L，TDN在实验13d达到最大值21.25mg/L；各实验组测试指标的相关性分析表明：蓝藻降解液中TDP、PO43--P、TDN及NH4+-N含量与pH呈显著相关性（p<0.05），TDP与PO43--P均呈显著正相关性（p<0.01），NH4+-N与TDN也呈现显著正相关关系（p<0.01）。因此，蓝藻降解过程会产生大量PO43--P、NH4+-N形态无机营养盐，而环境条件对氮磷营养盐释放规律具有显著影响 |
| 英文摘要: |
| The experiments were performed to study the content changes and the correlation analysis of pH, DO, chlorophyll a, N, and P in the water during the decay process of cyanobacteris under different conditions (Light, Oxygen, Lake Water, Ultra-Pure Water). The experimental results showed that the chlorophyll a content reached the peak value of 1020.3μg/L on the 16th day of degradation, while the total dissolved phosphorus (TDP) and the total dissolved nitrogen (TDN) increased to the maximum values of 2.79 mg / L and 14.78mg/L respectively on the 30th day of degradation under light and aerobic conditions. Under the sealed and dark degradation conditions, the content of chlorophyll a in the water decreased to 127.9 μg/L on the 7th day, the degradation rate was 76.96%, while the content of TDP in the water reached the maximum value of 3.56 mg/L on the 20th day, and TDN also reached the peak value of 21.25 mg/L on the 13th day. Correlation analysis showed that there were significant correlation (p<0.05)among physical and chemical index( pH、TDP、PO43--P, TDN and NH4+-N）, significant correlation (p<0.01) between TDP and PO43--P, significant correlation (p<0.01) between NH4+-N and TDN in the cyanobacteria degradation solution . Therefore, the degradation process of cyanobacteria can release nitrogen and phosphorus nutrients, and water environment conditions have a significant impact on the release of nitrogen and phosphorus nutrients |
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