【正文】
eighteenth and nieenth centuries in England,France Germany,and Darcy patented filters in france and England in 1865 and anticipated all aspects of the American rapid sand filter except appears to be the first to apply the law of hydraulics to filter design. The first filter to supply water to a whole town was pleted at Paisley,Scotland,in 1804,but this water was carted to consumers. In Glasgow, Scotland,in 1807 filtered water was piped to consumers. In the United States little attention was given to water treatment until after the Civil War. Turbidity was not as urgent a problem as in Europe. The first filters were of the slow sand type,similar to British design. About 1890 rapid sand filters were developed in the United States and coagulants were introduced to increase their efficency. These filters soon evolved to our present rapid sand filters with slight modification. 歷史上的水供應 人類對純凈水的搜尋開始于史前時代。數(shù)千年前,必須通過我們最近的祖先學會建造城市,享有便利的水管道和渠道輸水廢物的家。廣泛的系統(tǒng)排水傳達廢物從宮殿和住宅區(qū)的城市翻譯結果重試抱歉,系統(tǒng)響應超時,請稍后再試 支持中英、中日在線互譯 最早記載了解水處理在梵語醫(yī)學知識和埃及墻壁沖。他制作的書籍在羅馬供水。 英國哲學家弗蘭西斯爵士熏肉寫他的實驗凈化水過濾,沸點,蒸餾和澄清凝血。他寫了一本關于保護健康的士兵在難民營中,根據(jù)他的經(jīng)驗,在 第二次世界大 戰(zhàn)爭。華麗的頭上的蓄水池熊的日期,但不知道當過濾器放置。威尼斯陸地面積 畝 ,年平均降雨量為 32 英寸(中)。這些蓄水池一直是主要的水供應威尼斯直到第十六世紀。他似乎是第一個適用法律液壓濾波器的設計。濁度不緊迫的問題在歐洲。