| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and bag for purifying cement washing water which can rapidly separate a cement washing water produced in building sites or construction fields into a cement component and water, even when the field is narrow or does not have access to electricity. SOLUTION: In this method of purifying cement washing water, a coagulating agent is mixed into cement a washing water to coagulate solids suspended in the cement washing water and to remove the resultant coagulate, thereby the cement washing water is purified. A purification bag 1 having an opening and formed of cloth, which is permeable to water but impermeable to the coagulate, is mounted within a vessel 6A, such as a bucket, so that the opening faces upward. The cement washing water, which has been mixed with a coagulating agent 51 to coagulate the solids suspended in the cement washing water, is poured into the purification bag 1. The purification bag 1 is then pulled up from within the vessel 6A, and the liquid permeated through the purification bag is recovered in the vessel 6A. COPYRIGHT: (C)2004,JPO
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