本文關(guān)鍵詞：基于一級(jí)動(dòng)力學(xué)模型的水培蔬菜濾床氮磷去除模擬　出處：《東南大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年04期 　論文類(lèi)型：期刊論文

  更多相關(guān)文章： 水培蔬菜濾床 氮 磷 一級(jí)動(dòng)力學(xué)模型 一級(jí)動(dòng)力學(xué)模型拓展式

【摘要】：采用水培蔬菜濾床(HVFB)凈化及經(jīng)生化處理后的生活污水尾水,并選用一級(jí)動(dòng)力學(xué)模型開(kāi)展HVFB氮磷去除動(dòng)力學(xué)試驗(yàn)研究.基于A(yíng)rrhenius公式采用試驗(yàn)數(shù)據(jù)分析水溫與一級(jí)反應(yīng)面積速率常數(shù)K間關(guān)系,采用乘冪和指數(shù)回歸方程擬合20℃時(shí)面積速率常數(shù)K20與水力負(fù)荷間關(guān)系,并構(gòu)建濾床模型拓展式.Arrhenius擬合結(jié)果表明,番茄濾床的氨氮、總氮(TN)和總磷(TP)的溫度系數(shù)θ值分別為1.08,1.06和1.01,空心菜濾床θ值分別為1.07,1.04和1.00,氨氮、TN的K值與水溫呈顯著正相關(guān),氨氮的K值受水溫影響更為敏感,TP的K值與水溫?zé)o明顯關(guān)系.在擬合K_(20)與水力負(fù)荷關(guān)系上,乘冪回歸整體上較指數(shù)回歸具有更高的準(zhǔn)確性.考慮了水溫和水力負(fù)荷因素的一級(jí)動(dòng)力學(xué)模型拓展式的預(yù)測(cè)具有較高的準(zhǔn)確性和可靠性.增強(qiáng)TN去除效率(水溫小于19.5℃)和TP去除效率(水溫大于19.5℃),可有效提高HVFB整體進(jìn)水水力負(fù)荷.
[Abstract]:A hydroponic vegetables filter bed (HVFB) purification and biochemical treatment of the wastewater of tail water and the first-order kinetic model experimental study on dynamics of nitrogen and phosphorus removal in HVFB. Arrhenius formula by test data analysis of water temperature and the first-order reaction rate constant of K based on the relationship between the area and the power and exponential regression equation fitting 20 C. area rate constant K20 and the relationship between the hydraulic load, and the construction of filter bed model development.Arrhenius fitting results showed that ammonia nitrogen in tomato filter bed (TN), total nitrogen and total phosphorus (TP) temperature coefficient values were 1.08,1.06 and 1.01, spinach bed theta values were 1.07,1.04 and 1, ammonia nitrogen, TN the value of K was positively correlated with water temperature, ammonia nitrogen K value influenced by temperature is more sensitive to TP, the K value has no obvious relationship with water temperature. The fitting of K_ (20) and hydraulic load on the whole a power regression exponential regression has higher Accuracy. Considering the water temperature and hydraulic load factors, the prediction of the first order dynamic model has high accuracy and reliability. Enhanced TN removal efficiency (water temperature is less than 19.5 degrees centigrade) and TP removal efficiency (water temperature is greater than 19.5 degrees C) can effectively improve the overall water intake and hydraulic load of HVFB.

【作者單位】： 東南大學(xué)能源與環(huán)境學(xué)院;
【基金】：“十二五”國(guó)家科技支撐計(jì)劃資助項(xiàng)目(2013BAJ10B13)
【分類(lèi)號(hào)】：X703
【正文快照】： 水生植物濾床(aquatic plant filter bed,APFB)作為控制點(diǎn)源與非點(diǎn)源污染的一種新型生態(tài)技術(shù)[1 2],正受到人們的廣泛關(guān)注.目前,APFB已用于城市暴雨徑流[3]、河水[4]、冶煉廠(chǎng)廢水[5]、水產(chǎn)養(yǎng)殖尾水[6]、農(nóng)業(yè)廢水[7]等的處理研究.APFB是由水生植物、水生動(dòng)物及微生物構(gòu)成的生態(tài)

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