[1]柴曉利,韓紅波,張宏亮,等.HPB工藝用于污水廠提標擴容改造的生產性試驗研究[J].中國給水排水,2021,37(1):9-15.
CHAI Xiao-li,HAN Hong-bo,ZHANG Hong-liang,et al.Full-scale Test of HPB Process Applied in Upgrading and Capacity Expansion of a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(1):9-15.
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CHAI Xiao-li,HAN Hong-bo,ZHANG Hong-liang,et al.Full-scale Test of HPB Process Applied in Upgrading and Capacity Expansion of a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(1):9-15.
HPB工藝用于污水廠提標擴容改造的生產性試驗研究
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期數: 2021年第1期 頁碼: 9-15 欄目: 出版日期: 2021-01-01
- Title:
- Full-scale Test of HPB Process Applied in Upgrading and Capacity Expansion of a Wastewater Treatment Plant
- 關鍵詞:
- 高濃度復合粉末載體生物流化床; 雙泥齡; 脫氮除磷
- Keywords:
- high concentration powder carrier bio-fluidized bed; two independent sludge age; nitrogen and phosphorus removal
摘要:- 基于HPB工藝中試研究結果，為進一步驗證HPB工藝在提標擴容實際生產工況下的處理效果和可實施性，在湖南某水質凈化廠進行了生產性試驗。試驗期間，在總進、出水量保持不變的條件下，進行HPB工藝改造，將現狀兩組生化池（A2/O）切換為單組運行，處理水量提升1倍，總停留時間縮短為5.0 h以下。通過復合粉末載體的投加及排泥過程中載體和附著微生物的回收循環，實現了“雙泥齡”，克服了脫氮菌和除磷菌的污泥齡矛盾，提高了脫氮除磷效率。試驗結果表明，生化池混合液濃度控制在10 000 mg/L左右，在廠區進水水量和水質變化較大(KZ≥1.3)、水溫低于冬季設計溫度時，HPB工藝系統運行穩定，主要出水水質指標COD＜30 mg/L、NH3-N＜1.5 mg/L、TN＜10 mg/L、TP＜0.3 mg/L，能夠實現高效、穩定達標。
Abstract:- Based on pilot test results of the high concentration powder carrier bio-fluidized bed (HPB) process, the fullscale test was carried out in a wastewater treatment plant (WWTP) in Hunan Province, which aimed to further verify the performance and feasibility of HPB process under actual production condition of upgrading and capacity expansion. During the test period, the current process was transformed to HPB process with no change of the total amount of influent and effluent, and the current two biochemical tanks (A2/O) were switched to a single group operation, in which the treatment capacity doubled and the total hydraulic residence time was shortened to less than 5.0 h. Through adding composite powder carriers and recycling carriers and biofilm attached on them during sludge discharge process, the two independent sludge age was realized, which overcame the contradiction of sludge age between nitrogen and phosphorus removal bacteria and improved the removal efficiency of nitrogen and phosphorus. The full-scale test showed that the concentration of mixed liquid suspended solid could be controlled at 10 000 mg/L. When the quantity and quality of influent of the WWTP changed greatly (KZ≥1.3) and the water temperature was lower than the design temperature in winter, the HPB process system operated stably, and the main water quality indexes of the effluent could efficiently and stably meet the discharge standard (COD < 30 mg/L, NH3-N<1.5 mg/L, TN<10 mg/L and TP<0.3 mg/L).
更新日期/Last Update: 2021-01-01
