DONG Shan yan,CHEN Gang,CHI Chun rong,et al.Effect of Anaerobic Environment on Performance of UNITANK Process[J].China Water & Wastewater,2018,34(21):74-79.
厭氧環(huán)境對(duì)UNITANK工藝性能的影響
- Title:
- Effect of Anaerobic Environment on Performance of UNITANK Process
- 文章編號(hào):
- 1000-4602(2018)21-0074-06
分類(lèi)號(hào):- TU992.3
- 文獻(xiàn)標(biāo)志碼:
- C
摘要:- 以贛南地區(qū)低碳源實(shí)際城市污水為研究對(duì)象，分析了UNITANK工藝中邊池厭氧時(shí)間對(duì)系統(tǒng)脫氮除磷性能的影響。結(jié)果表明，當(dāng)內(nèi)回
流比為100%時(shí)，隨著邊池厭氧時(shí)間的增加，TN去除率呈現(xiàn)先增加后減小的趨勢(shì)，而TP去除率則逐漸增大；邊池厭氧時(shí)間對(duì)COD、NH3-N的去除效果影響較小。當(dāng)厭氧時(shí)間為60 min時(shí)，出水COD、NH3-N、TN、TP的平均濃度分別為11.07、0.93、11.78、0.85 mg/L，除TP外其他3項(xiàng)指標(biāo)均優(yōu)于《城鎮(zhèn)污水處理廠(chǎng)污染物排放標(biāo)準(zhǔn)》（GB 18918—2002）的一級(jí)A標(biāo)準(zhǔn)要求；通過(guò)考察試驗(yàn)裝置邊池半周期內(nèi)各組分濃度的動(dòng)態(tài)變化，在邊池厭氧時(shí)間為100 min的條件下，厭氧釋磷現(xiàn)象最為明顯，邊池NO-2-N積累濃度最高，邊池存在反硝化過(guò)程和釋磷過(guò)程對(duì)碳源的競(jìng)爭(zhēng)問(wèn)題。
Abstract:- The effect of the anaerobic time in the side tank on the efficiency of nitrogen and phosphorus removal of the UNITANK process was investigated based on the actual municipal sewage from the south Jiangxi area. The results showed that when the internal reflux ratio was 100%, with the increase of the anaerobic time in the side tank, the removal rate of TN was firstly increased and then decreased, while the removal rate of TP increased gradually. The anaerobic time in the side tank had negligible effect on the removal efficiency of COD and NH3-N. When the anaerobic time was 60 min, the average concentrations of effluent COD, NH3-N, TN and TP were 11.07 mg/L, 0.93 mg/L, 11.78 mg/L and 0.85 mg/L, respectively. All indicators except TP had satisfied the first level A standard in the Discharge Standards of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The dynamic changes of the component concentrations in the half cycle of the side tank were investigated. When the anaerobic time in the side tank was 100 min, the anaerobic phosphorus release was obvious, and the concentration of NO-2-N in the side tank was at the highest level. The processes of denitrification and phosphorus release in the side tank competed for the carbon source.
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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(51464014)；江西省教育廳科學(xué)技術(shù)研究項(xiàng)目(GJJ150662)；江西理工大學(xué)博士啟動(dòng)基金資助項(xiàng)目(3401223198)
作者簡(jiǎn)介： 董姍燕（1977- ），女，安徽明光人，博士，講師，主要從事污水處理工藝仿真及優(yōu)化研究。
E-mail:wydeccr@163.com
收稿日期：2018-04-23
