【摘要】：添加緩釋碳源生態(tài)基質(zhì)提高河水C/N值可增強(qiáng)脫氮效果�？疾炝瞬煌砑颖壤龑�(duì)河水脫氮效果和COD的影響,并采用高通量測(cè)序手段對(duì)基質(zhì)中微生物進(jìn)行分析,結(jié)果表明對(duì)總氮去除效果隨著添加比例的增加而增加,考慮到前期釋碳量高易引起二次污染,控制添加比例為15%,裝置對(duì)氨氮、硝態(tài)氮、總氮的平均去除率分別為62.36%、75.22%、64.09%;出水ρ(COD)平均為28.18 mg/L。高通量分析結(jié)果顯示假單胞菌(Pseudomonas)隨著添加比例增加而增加,與脫氮效果一致,這可能與該菌屬中包含硝化菌有關(guān);緩釋碳源添加比例為15%時(shí),該組微生物多樣性最大�？梢�,控制緩釋碳源生態(tài)基質(zhì)添加比例對(duì)脫氮效果具有一定的意義。
[Abstract]:Adding slow release carbon source ecological substrate to increase the C / N value of river water can enhance the denitrification effect. The effects of different addition ratios on the nitrogen removal efficiency and COD in river water were investigated. The results showed that the removal efficiency of total nitrogen increased with the increase of the proportion of total nitrogen, and the microbes in the substrate were analyzed by high-throughput sequencing. Considering the secondary pollution caused by high carbon release in the early stage, the average removal rate of ammonia nitrogen, nitrate nitrogen and total nitrogen is 62.3636% and 75.22%, respectively, and the average effluent 蟻 (COD) is 28.18 mg/L., and the ratio of controlling addition is 15%, and the average removal rate of ammonia nitrogen, nitrate nitrogen and total nitrogen is 62.36 and 75.22 respectively, and the average effluent 蟻 (COD) is 28.18 mg/L.. The results of high throughput analysis showed that the (Pseudomonas) of Pseudomonas increased with the increase of the addition proportion, which was consistent with the denitrification effect, which might be related to the nitrifying bacteria in this genus, and the microbial diversity of this group was the largest when the proportion of slow-release carbon source was 15. It can be seen that controlling the proportion of slow-release carbon source ecological matrix has certain significance for nitrogen removal effect.
【作者單位】： 鄭州大學(xué)水利與環(huán)境學(xué)院;鄭州大學(xué)環(huán)境技術(shù)咨詢工程有限公司;鄭州大學(xué)環(huán)境政策規(guī)劃評(píng)價(jià)研究中心;
【基金】：國家水體污染控制與治理科技重大專項(xiàng)(2015ZX07204-002-004)
【分類號(hào)】：X172;X52
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本文編號(hào)：2281162