現場生產氯氣 Onsite Chlorine Gas Generation 專 題 故 事 FEATURE STORY Enhancing Drinking Water Quality and Community Safety with Onsite Chlorine Gas Generation For decades, Hong Kong had disinfected drinking water to suppress bacterial growth by using chlorine gas produced from liquid chlorine, a method which was also widely adopted throughout the world. Classified as dangerous goods, liquid chlorine was imported from the Guangdong Province, mainland China and transported by dangerous goods vehicles to various water treatment works (WTWs) for storage and use. This might incur potential risks of chlorine leakage during transportation and storage. Besides, its supply might fluctuate thereby posing an impact on the fresh water treatment and supply of drinking water in Hong Kong. 現場生產氯氣以改善水質和社區安全 過去數十年，香港一直使用由液態氯產生的氯氣消毒食水，抑 制細菌滋生，這種方法亦廣泛地在世界各地使用。液態氯被歸 類為危險品，須從中國內地廣東省進口，以危險品車輛運輸至 本港各濾水廠貯存及使用。在這過程中，可能涉及氯氣洩漏風 險。此外，液態氯的供應可能會出現波動，對香港食水處理和 供水造成影響。 水務署 二零二二至二三年年報 WSD Annual Report 2022/23 73 Scale up 升 級 開 拓
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