WANG Bo wen,SUN An ning,ZHANG Guo min,et al.Hydrodynamic Effect of Baffle in a Hybrid Growth Membrane Bioreactor[J].China Water & Wastewater,2018,34(21):80-85.
混合生長(zhǎng)式膜生物反應(yīng)器中導(dǎo)流板的流體力學(xué)影響
- Title:
- Hydrodynamic Effect of Baffle in a Hybrid Growth Membrane Bioreactor
- 文章編號(hào):
- 1000-4602(2018)21-0080-06
- 關(guān)鍵詞:
- 混合生長(zhǎng)式膜生物反應(yīng)器; 填料; 導(dǎo)流板; 隔離網(wǎng); 流體力學(xué)特性
- Keywords:
- hybrid growth membrane bioreactor; carrier; baffle; separation mesh; hydrodynamic characteristics
分類(lèi)號(hào):- TU992.3
- 文獻(xiàn)標(biāo)志碼:
- C
- 摘要:
- 在中試規(guī)模的混合生長(zhǎng)式膜生物反應(yīng)器(HG-MBR)中,采用導(dǎo)流板對(duì)膜區(qū)和填料區(qū)的隔離網(wǎng)進(jìn)行了優(yōu)化研究,通過(guò)清水試驗(yàn)分析了導(dǎo)流板面積和位置對(duì)反應(yīng)器流體力學(xué)特性的影響。結(jié)果表明,使用導(dǎo)流板可以改善反應(yīng)器的流體力學(xué)特性,減小隔離網(wǎng)對(duì)填料流動(dòng)的負(fù)面效應(yīng),降低驅(qū)動(dòng)填料流化所需的曝氣量,促進(jìn)填料在反應(yīng)器內(nèi)的循環(huán)流動(dòng),從而達(dá)到節(jié)能降耗的目的。優(yōu)化運(yùn)行結(jié)果表明,膜區(qū)和填料區(qū)之間的隔離網(wǎng)在上部采用導(dǎo)流板式封閉設(shè)計(jì)(面積約為0.71 m2),當(dāng)填料填充率為50%時(shí),驅(qū)動(dòng)填料流動(dòng)所需的曝氣量可減少15%以上,節(jié)能效果明顯。
Abstract:- The study was carried out for optimizing the separation mesh between the membrane area and the carrier area by using a baffle in a hybrid growth membrane bioreactor (HGMBR). The effects of the area and the location of the baffle on the hydrodynamic characteristics of the reactor were investigated by clean water experiment. It was found that the use of a baffle could improve the hydrodynamic characteristics of the reactor, mitigate the negative impact of the separation mesh on the mobility of the carriers, reduce the aeration rate required for driving the carriers, enhance the recirculation of the carriers in the reactor, and therefore reduce the energy consumption. The optimized operation results showed, when the closed design of a baffle (an area of 0.71 m2) on the upper part of the separation mesh between the membrane area and the carrier area was adopted and the filling ratio was 50%, obvious energy saving effects were achieved as aeration rate driving for the moving of the carriers was reduced more than 15%.
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備注/Memo
基金項(xiàng)目:國(guó)家自然科學(xué)基金資助項(xiàng)目(51568018);中西部高校項(xiàng)目(MWECSP-RT08、ZXBJH-XK004、ZXBJH-XK);海南省高校研究生創(chuàng)新科研課題項(xiàng)目(Hys2017-85)
通信作者:楊飛E-mail:Laochy@163.com
作者簡(jiǎn)介:王博文(1992- ),男,湖北黃岡人,碩士研究生,研究方向?yàn)槲鬯幚砑夹g(shù)。
E-mail:haowangbowen@163.com
收稿日期:2018-04-08