[1]李圭白,楊海洋,仲琳,等.錳質(zhì)濾膜活性對(duì)接觸氧化除錳及除氨氮效能的影響[J].中國給水排水,2020,36(21):1-6.
LI Gui-bai,YANG Hai-yang,ZHONG Lin,et al.Effect of Manganese Oxides Film Activity on Removal Efficiencies of Manganese and Ammonia Nitrogen by Contact Oxidation[J].China Water & Wastewater,2020,36(21):1-6.
點(diǎn)擊復(fù)制
LI Gui-bai,YANG Hai-yang,ZHONG Lin,et al.Effect of Manganese Oxides Film Activity on Removal Efficiencies of Manganese and Ammonia Nitrogen by Contact Oxidation[J].China Water & Wastewater,2020,36(21):1-6.
錳質(zhì)濾膜活性對(duì)接觸氧化除錳及除氨氮效能的影響
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期數(shù): 2020年第21期 頁碼: 1-6 欄目: 出版日期: 2020-11-01
- Title:
- Effect of Manganese Oxides Film Activity on Removal Efficiencies of Manganese and Ammonia Nitrogen by Contact Oxidation
- Keywords:
- ferrous iron; manganese active oxides film; manganese; ammonia nitrogen; groundwater; iron and manganese oxidizing bacteria
摘要:- 采用3種不同濃度的二價(jià)鐵污染成熟錳質(zhì)活性濾膜，考察錳質(zhì)濾膜活性對(duì)濾柱的長期除錳及除氨氮效能的影響。結(jié)果表明，增大二價(jià)鐵濃度會(huì)影響錳質(zhì)活性濾膜的催化氧化性能，導(dǎo)致出水錳濃度超標(biāo)長達(dá)數(shù)月，但對(duì)氨氮的去除效能卻無顯著影響。活性濾膜恢復(fù)再生時(shí)間隨著二價(jià)鐵濃度的增大而延長，當(dāng)進(jìn)水二價(jià)鐵濃度分別為5、10、20 mg/L時(shí)，濾柱的恢復(fù)再生時(shí)間分別為92、104和112 d。二價(jià)鐵污染對(duì)鐵錳氧化菌數(shù)量沒有顯著影響，在為期125 d的實(shí)驗(yàn)過程中，上層濾料表面鐵錳氧化菌數(shù)量可達(dá)到105 CFU/cm3，并持續(xù)增長，但除錳效果卻顯著惡化，可見在成熟砂濾柱內(nèi)，活性濾膜的催化氧化性能在除錳過程中起著主要作用，而生物催化氧化作用是次要的。
Abstract:- The water containing three different concentrations of ferrous iron was used to contaminate the mature manganese active oxides film, and the effect of manganese oxides film activity on removal efficiencies of manganese and ammonia nitrogen from groundwater during long-term operation was investigated. The increase of ferrous iron concentration could affect the catalytic oxidation activity of the manganese active oxides film, resulting in the manganese concentration in the effluent exceeding the standard for several months. However, it had no significant effect on ammonia nitrogen removal. The regeneration time of manganese active oxides film increased with the increase of ferrous iron concentration.When the ferrous iron concentration in the influent was 5 mg/L, 10 mg/L and 20 mg/L, the regeneration time was 92 d, 104 d and 112 d, respectively. The iron and manganese oxidizing bacteria were less affected by the high concentration of ferrous iron. During the 125 days operation period, the number of iron and manganese oxidizing bacteria on the surface of the upper filter material reached 105 CFU/cm3 and continued to increase.However, the removal efficiency of manganese deteriorated significantly. Therefore, catalytic oxidation of the manganese active oxides film played a major role in the process of manganese removal, while the contribution of biotic oxidation was minor.
相似文獻(xiàn)/References:
[1]王盼新,酈歆飛,王昀鵬,等.二價(jià)鐵活化過二硫酸鹽對(duì)As(Ⅲ)的去除效能與機(jī)理[J].中國給水排水,2020,36(23):14.
WANG Pan-xin,LI Xin-fei,WANG Yun-peng,et al.Removal Efficiency and Mechanism of As(Ⅲ) by Ferrous Activated Peroxydisulfate[J].China Water & Wastewater,2020,36(21):14.
更新日期/Last Update: 2020-11-01
