南方某污水處理廠提標改造工藝運行優(yōu)化
- Title:
- Process Optimization of a Municipal WWTP in South China after Upgrading
- Keywords:
-
WWTP; upgrading; nitrogen and phosphorus removal; process optimization; sludge nitrification rate; accurate chemicals addition; fall re oxygenation
摘要:-
南方某污水處理廠提標改造后，排放標準從一級B提高至一級A標準和廣東省地標兩者之嚴者�？偟�、氨氮、總磷的排放值分別比原標準降低了25%、37.5%、50%，而該廠提標后的主體工藝仍然為改良 AAO氧化溝，這對污水處理廠的運行管理提出很大挑戰(zhàn)。通過污泥硝化速率分析，總氮、總磷成分檢測，精確加藥,跌水復氧分析及改造等措施優(yōu)化工藝運行后，運行效率明顯提升，在確保水質穩(wěn)定達標的同時，節(jié)約了生產成本，對同類污水處理廠的工藝優(yōu)化改造具有一定的參考意義。
Abstract:-
The discharge standard of a wastewater treatment plant after upgrading was raised from the national first level B to level A and the local standard of Guangdong Province. The new discharge limits on total nitrogen, ammonia nitrogen and total phosphorus, were 25%, 37.5% and 50% lower than those of the original standard. The main process was still AAO oxidation ditch after upgrading, which posed a great challenge to the operation and management. The process operation was optimized by analysis of sludge nitrification rate, total nitrogen and total phosphorus composition, accurate chemicals addition, fall re oxygenation, and etc.
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