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改良UCT分段進(jìn)水脫氮除磷工藝性能及物料平衡
摘要：采用改良UCT分段進(jìn)水試驗(yàn)裝置研究了該工藝處理實(shí)際生活廢水的脫氮除磷性能,建立了該系統(tǒng)碳(COD)、氮、磷的物料衡算公式,并以穩(wěn)態(tài)條件下試驗(yàn)數(shù)據(jù)為基礎(chǔ)分析評(píng)價(jià)了各指標(biāo)的物料分布情況.結(jié)果表明,工藝出水水質(zhì)穩(wěn)定,抗沖擊負(fù)荷能力較強(qiáng),平均出水COD、總氮、總磷含量分別為43.5、8.51、0.29 mg·L~(-1),滿足國(guó)家城鎮(zhèn)生活污水一級(jí)A排放標(biāo)準(zhǔn).此外,根據(jù)建立的物料衡算公式及工藝各反應(yīng)區(qū)污染物指標(biāo)的轉(zhuǎn)化途徑分析發(fā)現(xiàn),高達(dá)67.1%的'反硝化脫氮作用(包括缺氧反硝化和好氧同步硝化反硝化)是該工藝深度脫氮的根本原因;系統(tǒng)反硝化和釋磷過(guò)程利用的COD占總?cè)コ康?2.1%,體現(xiàn)了該工藝充分利用原水碳源的優(yōu)勢(shì);氮素和COD的平衡率均高達(dá)99.8%,證明了所建立的公式的有效性.系統(tǒng)對(duì)磷的去除主要依賴于排放的剩余污泥,占總量的71.7%.Abstract：The removal of wastewater nutrients in the modified UCT step feed process was investigated when treating municipal wastewater.Based on experimental data under steady-state conditions, the equations for calculating material balances of COD, nitrogen and phosphate were established.These three material distributions in the system were also evaluated.The results indicated that with stable effluent quality and good capacity of resistance to shock load, the effluent concentrations of COD,TN and TP were 43.5, 8.51, 0.29 mg·L~(-1) on average, respectively, which the first level A discharge standard of pollutants for municipal wastewater treatment plant was met.Furthermore, according to calculation equations and transformation pathways of nutrients, it was found that approximately 67.1% of nitrogen was successfully removed during the denitrification process, including anoxic denitrification process and simultaneous nitrification and denitrification (SND) process, which greatly contributed to high nitrogen removal efficiency.COD consumed in the denitrification and phosphate release process accounted for 62.1%, which embodied the advantage of sufficient utilization of influent carbon sources.Both nitrogen and COD balance ratios were as high as 99.8%, which confirmed the validity of equations established.Phosphate removal was mainly achieved by the discharge of excess sludge, accounting for 71.7% of the total. 作者： 葛士建[1]彭永臻[1]張亮[2]王希明[1]王淑瑩[1] Author： GE Shijian[1] PENG Yongzhen[1] ZHANG Liang[2] WANG Ximing[1] WANG Shuying[1] 作者單位： 北京工業(yè)大學(xué)北京市水質(zhì)科學(xué)與水環(huán)境恢復(fù)重點(diǎn)實(shí)驗(yàn)室,北京,100124哈爾濱工業(yè)大學(xué)城市水資源與水環(huán)境國(guó)家重點(diǎn)實(shí)驗(yàn)室,黑龍江,哈爾濱,150090 期 刊： 化工學(xué)報(bào) ISTICEIPKU Journal： CIESC JOURNAL 年，卷(期)： 2010, 61(4) 分類號(hào)： X703.1 關(guān)鍵詞： 分段進(jìn)水 脫氮除磷 UCT 物料平衡 Keywords： step feed nitrogen and phosphate removal UCT material balance 機(jī)標(biāo)分類號(hào)： X70 X79 機(jī)標(biāo)關(guān)鍵詞： 改良 分段進(jìn)水 脫氮除磷性能 工藝性能 物料平衡 step material balance simultaneous nitrification 同步硝化反硝化 COD high nitrogen removal wastewater treatment phosphate release experimental data 物料衡算 effluent quality 抗沖擊負(fù)荷能力 transformation excess sludge 系統(tǒng) 基金項(xiàng)目： 國(guó)家重大科技專項(xiàng)課題，北京市教委科技創(chuàng)新平臺(tái)項(xiàng)目，中韓環(huán)境共同技術(shù)研究項(xiàng)目【改良UCT分段進(jìn)水脫氮除磷工藝性能及物料平衡】相關(guān)文章：
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