Chemicals such as aluminum sulfate and liquid chlorine are used. These chemicals are flocculating chemicals that help in water filtration. What they do is that they clump the particles together until they form a larger particle. These flocks can then be easily removed or filtered out...
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chlorine content was within acceptable limits, it was recently reported in a weekly magazine [...] legco.gov.hk 此外,雖然政府官員於本年1月25日出席本會環境事務委員會的會議時表示,昂船洲污水處理廠排水口的水質分 析顯示殘餘氯 氣 含 量 屬 可 接受 的 水 平, 但近日有周刊報道 其 進行 的...
Whilst tosylate is exemplary, X may also be an alternative leaving group, such as a halogen, typically chlorine. Selective removal of the amine protective group reveals the mono-substituted piperazine 4. In the case of a Boc derivative (R=CO2tBu), the deprotection step is typically undertaken ...
chlorine content was within acceptable limits, it was recently reported in a weekly magazine [...] legco.gov.hk 此外,雖然政府官員於本年1月25日出席本會環境事務委員會的會議時表示,昂船洲污水處理廠排水口的水質分 析顯示殘餘氯 氣 含 量 屬 可 接受 的 水 平, 但近日有周刊報道 其 進行 的...