A. The tests on adding chlorine to the water. B. The measures the city officials took. C. The bans the city officials made. D. Mayor Colli ns' opinion on solv ing the polluti on problem. 相关知识点: 试题来源: 解析 B 解析:主旨大意题。第四段谈道:为了解决问题,市政官员向水中加碳和...
Therefore, adding chlorine to water is a crucial step in ensuring the safety and cleanliness of drinking water. 氯气被添加到水中以使其安全饮用,因为它是一种强氧化剂。氯可以杀死水中的细菌和病毒,从而防止水源性疾病的传播。因此,添加氯气是确保饮用水安全和卫生的关键步骤。
While adding chlorine to the raw water which includesPROBLEM TO BE SOLVED: To provide a cleaning treatment method for manganese-containing water capable of certainly removing soluble manganese in raw water by a compact apparatus, having no possibility of clogging even when the turbidity of raw ...
Why is there a need to wash the bottle of containing chlorine before throwing it? Explain. Why is sodium bicarbonate used resuscitation? What are the benefits of borates in pool water? Why does sodium chloride dissolve in water? Why is standardization necessary in titration?
4420394Solid granular chlorine dispenser for swimming pools1983-12-13Lewis422/266 4338191Apparatus for treating fluids1982-07-06Jordan210/199 4303515Chemical dispenser for bodies of water1981-12-01Rademacher422/283 4293425Method of chlorinating swimming pools and the like1981-10-06Price210/754 ...
3. The water treatment system and method as disclosed in claim 1, wherein said disinfectant at said fourth injection point is chlorine dioxide. 4. The water treatment system and method as disclosed in claim 1, wherein said metal salt catalyst is ferric sulfate or ferric chloride in a 50-...
A. The tests on adding chlorine to the water。 B. The measures the city officials took. C. The bans the city officials made. D. Mayor Collins’ opinion on solving the pollution problem. 相关知识点: 试题来源: 解析 B 解析:主旨大意题。第四段谈道:为了解决问题,市政官员向水中加碳和氯。...
A. The tests on adding chlorine to the water. B. The measures the city officials took. C. The bans the city officials made. D. Mayor Collins' opinion on solving the pollution problem. 相关知识点: 试题来源: 解析 B [段落大意题。第四段谈到:为了解决问题,市政官员向水中加碳和氯。接下来...
Chlorine use takes a dive in public-pool experiment ; Adding an enzyme to pool water reduces the phosphate level, requiring less chlorine and saving some money.BETH QUIMBY By BETH QUIMBY Staff Writer
Adding chlorine to the chilled waterPROBLEM TO BE SOLVED: To provide a slime preventing method in an open circulating cooling water system capable of suppressing the corrosion by metals and effectively suppressing the generation of slime.飯村 晶...