[1]宋田翼.污水處理廠約翰內(nèi)斯堡（JHB）工藝應(yīng)用實(shí)例[J].中國給水排水,2021,37(24):74-77.
SONG Tian-yi.A Case of Johannesburg（JHB） Process in a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(24):74-77.
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SONG Tian-yi.A Case of Johannesburg（JHB） Process in a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(24):74-77.
污水處理廠約翰內(nèi)斯堡（JHB）工藝應(yīng)用實(shí)例
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期數(shù): 2021年第24期 頁碼: 74-77 欄目: 出版日期: 2021-12-17
- Title:
- A Case of Johannesburg（JHB） Process in a Wastewater Treatment Plant
- 關(guān)鍵詞:
- JHB工藝; 多點(diǎn)布水; 除磷脫氮
摘要:- 河南省孟州市污水處理廠二期擴(kuò)建工程規(guī)模為2.5×104 m3/d，生化處理單元采用約翰內(nèi)斯堡工藝（Johannesburg工藝, 簡(jiǎn)稱JHB工藝），該工藝屬于改良AAO工藝的一種。二沉池污泥回流至預(yù)缺氧池，既可以優(yōu)先利用進(jìn)水中優(yōu)質(zhì)碳源進(jìn)行反硝化除氮，還可以減輕傳統(tǒng)AAO工藝中硝酸鹽對(duì)厭氧段釋磷的影響。為強(qiáng)化除磷脫氮效果，同時(shí)采取多點(diǎn)布水設(shè)計(jì)、加大缺氧池反應(yīng)時(shí)間、提高硝化液回流比、投加外部碳源等措施，實(shí)現(xiàn)了比一期工程更好的除磷脫氮效果，出水水質(zhì)明顯優(yōu)于一期工程氧化溝工藝。深度處理采用機(jī)械混凝、斜板沉淀及纖維轉(zhuǎn)盤過濾工藝，運(yùn)行效果良好，各出水指標(biāo)均穩(wěn)定達(dá)到《城鎮(zhèn)污水處理廠污染物排放標(biāo)準(zhǔn)》（GB 18918—2002）一級(jí)A標(biāo)準(zhǔn)。
Abstract:- The design scale of the phase Ⅱ expansion project of Mengzhou wastewater treatment plant in Henan Province is 2.5×104 m3/d. The Johannesburg process (JHB), which is one of the modified AAO process, is adopted in the biochemical treatment unit. When the sludge from the secondary sedimentation tank is returned to the pre-anoxic tank, the high-quality carbon source in the influent can be preferentially used for denitrification, and the influence of nitrate on phosphorus release in the anaerobic section in the traditional AAO process can be alleviated. The measures such as design of multi-point water distribution, increasing the reaction time of the anoxic tank, increasing the nitrification liquid reflux ratio, adding external carbon source were adopted to enhance the phosphorus and nitrogen removal efficiency. The phosphorus and nitrogen removal performance of the phase Ⅱ expansion project was better than that of the phase Ⅰ project, and the effluent quality was obviously better than that of the oxidation ditch process of the phase Ⅰ project. The advanced treatment system adopts the mechanical coagulation, inclined plate precipitation and fiber rotary filter processes, and the treatment performance is good. The effluent indicators all stably meet the requirements of the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
更新日期/Last Update: 2021-12-17
