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對污水處理行業的自控技術的看法

文章出處:本站 人氣:718發表時間2022-09-03

生化處理工藝方式很多的,要看什么工藝,如果是傳統鼓風曝氣活性污泥法,就沒必要自控,只要有液位保護控制和泵等設備的手動遙控控制就可。

卡魯塞爾氧化溝用自控制當然好,如果有水下推進器,用保護控制就可,如果沒有水下推進器,最好用運行控制。我這里說的保護控制就是控制系統(如PLC)根據設定的溶解氧范圍,通過曝氣機的開停和轉速使溶解氧控制在要求的范圍內。運行控制就不同,除了前面的要求外,還要考慮在曝氣機慢速運行或只有個別曝氣機運行時,防止污泥下沉,即在曝氣機的總體運行狀態只滿足DO 的控制,而不能滿足泥水混和的自動調控。


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