LU Ru,JU Zhi jian,DU Qiong.Upgrading and Reconstruction Project Design of Wastewater Treatment Plant with A/O Process[J].China Water & Wastewater,2018,34(20):56-59.
采用A/O工藝的污水處理廠提標(biāo)改造工程設(shè)計
- Title:
- Upgrading and Reconstruction Project Design of Wastewater Treatment Plant with A/O Process
- 文章編號:
- 1000-4602(2018)20-0056-04
- 關(guān)鍵詞:
- 污水處理; 提標(biāo)改造; A/O工藝
分類號:- TU992.3
文獻標(biāo)志碼:- C
摘要:- 遼寧省某污水處理廠設(shè)計規(guī)模為10×104 m3/d，采用A/O處理工藝。升級改造工程要求設(shè)計出水水質(zhì)從《城鎮(zhèn)污水處理廠污染物排
放標(biāo)準(zhǔn)》（GB 18918—2002）一級B標(biāo)準(zhǔn)提升至一級A標(biāo)準(zhǔn)。針對出水總氮超標(biāo)問題，增設(shè)一組A/O生化池，以降低脫氮負荷，同時增設(shè)碳源投加系統(tǒng)，從而保證了脫氮效率；針對進水含砂量大，導(dǎo)致粗、細格柵和提升水泵等機械設(shè)備磨損嚴(yán)重的問題，提標(biāo)改造中增設(shè)了粗格柵及平流沉砂池，使進水中的砂在平流沉砂池內(nèi)預(yù)沉，同時去除大顆粒漂浮物，從而保證了粗、細格柵及提升泵的正常運行。實際運行表明，提標(biāo)改造工程出水水質(zhì)完全達到一級A標(biāo)準(zhǔn)。
Abstract:- A/O process was adopted in a wastewater treatment plant with capacity of 10×104 m3/d in Liaoning Province. The effluent quality of reconstruction project was required to be upgraded from the first level B standard to the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). Denitrifying load would be lowered by construction of a new A/O biochemical tank, and nitrogen removal efficiency would be ensured by supplement of carbon source. The inlet water contained a lot of grit which led to serious wear of mechanical equipment such as coarse screen, fine rack and lift pumps. The grit and large particles of floatation in water would be settled by usage of the coarse screen and the horizontal flow grid chamber. As a result, the coarse screen, fine rack and lift pumps would operate normally. Actual operation showed the effluent quality could meet the first level A standard.
參考文獻/References:
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［2］周丹，周雹. 污水脫氮工藝中外部碳源投加量簡易計算方法［J］. 給水排水,2011,37(11):38-41.Zhou Dan,Zhou Bao. Simple calculation method for the outside carbon source dosage for nitrogen removal process in wastewater treatment［J］. Water & Wastewater Engineering,2011,37(11):38-41(in Chinese).
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備注/Memo
作者簡介：盧如（1987-），女，江西豐城人，碩士，工程師，主要從事市政給排水處理研究。
E-mail:303632669@qq.com
收稿日期：2018-04-18
