次氯酸電解設備設計及應用於麻瘋樹種子消毒研究

Electrolytic equipment design for hypochlorous acid production and Application in the disinfection of Jatropha seeds.

陳譽文(Yu-Wen Chen)

指導教授 ： 鍾財王

中原大學/工學院/化學工程研究所/碩士(2017年)

https://doi.org/10.6840/cycu201700350

摘要

本研究目的在設計能製造次氯酸的電解設備，並應用到麻瘋樹種子之消毒。首先探討單一變數對溶液之pH值、ORP值(氧化還原電位)、ACC (有效氯濃度)之影響，變數有電解功率、電解時間、原料濃度、溫度、電極間距、電極面積。找出主要參數為原料濃度(X1)、功率(X2)、電解時間(X3)，然後藉由回應曲面法Box-Behnken實驗設計，迴歸出預測模型，再利用此模型套用到其它設備設計上。
實驗結果顯示模型在中濃度的預測較佳，所以參數選擇是以(X1=2.7M，X2=21W，X3=30min)做為操作參數，可製造800ppm、pH7的次氯酸電解水，然後立即稀釋至400ppm以阻止分解反應，再依所需濃度進行稀釋。
關於麻瘋樹種子消毒所需濃度已由文獻整理出，所需控制條件為中性次氯酸濃度60ppm，浸泡25~30分鐘。

關鍵字

次氯酸電解水；設備設計；麻瘋樹籽

並列摘要

The purpose of this study was to design the electrolytic equipment that produce hypochlorous acid and apply on disinfection of Jatropha seeds. The impacts of various electrolysis conditions on pH, ORP and ACC (available chlorine concentration) were investigated for the solution, including power, electrolysis time, raw material concentration, temperature, electrodes gap and electrode area. The main variables such as raw material concentration (X1), power (X2) and electrolysis time (X3) were analyzed through the Box-Behnken experimental design. Using response surface methodology return second order model. With this model can predict the prediction value on other electrolytic equipment.
The results show that the model has an accurate prediction value in the medium concentration. The operating condition set as (X1=2.7M, X2=21W, X3=30min). The ACC and pH of product was 800ppm and pH7. But it need to dilute to 400ppm immediately. This step is important in order to stop the decomposition reaction of hypochlorous acid. And then dilute to the required concentration.

並列關鍵字

hypochlorous acid；equipment design；Jatropha seeds

參考文獻

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