POLAROGRAPHIC FREE CHLORINE CONCENTRATION MEASURING METHOD AND ITS MEASURING DEVICE
To provide a polarographic free chlorine concentration measuring method capable of measuring real free chlorine concentration in real-time even in a low water temperature period by removing trichloramine by aeration, and a measuring device thereof.SOLUTION: A polarographic free chlorine concentratio...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a polarographic free chlorine concentration measuring method capable of measuring real free chlorine concentration in real-time even in a low water temperature period by removing trichloramine by aeration, and a measuring device thereof.SOLUTION: A polarographic free chlorine concentration measuring device 1 measures the concentration of free chlorine in bacteria treated water for controlling the injection amount of free chlorine on sterilized treated water that contains free chlorine for sterilization at least in raw water containing ammonia nitrogen. The polarographic free chlorine concentration measuring method measures the free chlorine concentration after subjecting the treated water for measurement 5 obtained by diverting part of the sterilized treated water to aeration treatment to remove trichloramine.SELECTED DRAWING: Figure 1
【課題】エアレーションによってトリクロラミンを除去し、低水温期においても、リアルタイムで真の遊離塩素濃度を測定できるポーラログラフ式遊離塩素測定方法及びその測定装置を提供する。【解決手段】アンモニア態窒素を含む原水に少なくとも殺菌のための遊離塩素を注入した殺菌処理水に対して、該遊離塩素の注入量を制御するために該殺菌処理水の遊離塩素濃度を測定するポーラログラフ式遊離塩素濃度測定装置１であって、殺菌処理水の一部を分流した測定用処理水５に対して曝気処理を施してトリクロラミンを除去した後に、遊離塩素濃度を測定することを特徴とする。【選択図】図１ |
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