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黑龙江省绥棱县上集灌区董校辉、王立贵来稿说: 水泥可使浊水静化去年4月中旬,绥棱县绥中引渠六号跌水工地连遭大风侵袭,渠道南侧混凝土搅拌场地上的许多水泥,被风刮到渠内水中。大家看着这无法挽回的损失,十分心疼。大风过后,我们来到工地,惊奇地发现原来黄浊的渠水,都清澈见底了,真使人喜出望外。为什么浊水能变清呢?大家研究认为,这是水泥促使水中悬浮质沉淀了。为了证实这个结论,于是,我们又将一袋水泥倒入渠水中,四五小时后,渠水便清了。后来,我们将这个办法在灌区内的许多地工上使用,均取得很好效果。从此,搅拌砂浆用的清水,再也不用从远处运了。黑龙江省绥滨县农田水利工程管理总站来稿
Dongxuhui and Wang Ligui, Suiji Irrigation District, Heilongjiang Province, said: Cement can make turbid water calm In mid-April last year, Sulei County Suizhong Drainage Channel No. 6 water drop site was hit by a strong wind and the south side of the canal Many of the cement on the mixing ground was blown into the canal water. Everyone looked at this irreparable loss, very distressed. After the wind, we came to the site, surprised to find that the original yellow muddy water, are crystal clear, and really pleasantly surprised. Why does turbidity water become clear? Everyone thinks, this is cement to make suspended sediment in water sediment. In order to confirm this conclusion, we poured another bag of cement into the canal water again. After four or five hours, the canal water was cleared. Later, we used this approach on many local workers in the irrigation districts and achieved very good results. Since then, the water used to stir mortar, no longer transported from afar. Heilongjiang Suibin County Farmland Water Conservancy Project Management Station draft