请问如何处理自来水水中的沉淀物及重金属物?

2025-03-26 00:38:06
推荐回答(1个)
回答1:

  澄清:通过混凝剂作用形成的大颗粒在游泳池内静止分离,沉淀物沉在池底,上层得到澄清水。   吸池:通过专用的游泳池吸污机,将沉在游泳池池底的沉淀物除去。   消毒:加入消毒剂,杀灭水中的细菌、病毒、藻类等。   循环过滤:将处理过的水,通过泵流经装有石英沙、活性碳或其他特殊过滤材料的装置,截留水中残留杂物,使水质进一步净化。   一般对泳池的水处理及施药方法为:   1)制止与防止青苔生长投放硫酸铜,用量每1000m3水2~3Kg,每月投放1~2次(或发现小虫或青苔时使用)。   硫酸铜也称明矾,属杀藻药,为蓝色不对称三斜晶系结晶或粉末、易融与水,可杀、抗微生物生长,可使池水调节为海水样蓝色。   投放硫酸铜2小时以后,进行以下操作:   2)调节PH值(酸碱度),PH值调节药有两种:碳酸钠(苏打),白色粉末或细粒,易溶于水,呈碱性,PH值偏低时使用此药,PH值约升高1度,1m3水15g.盐酸,强酸性,&考&试大$在PH值达到8.2以上时,可按每1000m3投放5~10Kg.当池水的PH值在7.5~8.0时即为合适。   3)杀菌、消毒(见详细介绍)。   4)沉淀使用聚合氯化铝(PAC)按1000m35~10Kg的剂量投放。投放后开放循环系统半小时,使水中出现雪花状后,静止6~8小时,在进行吸尘。   5)吸尘以上程序完成后,进行吸尘。   注意:在进行1~3步骤时,应打开循环系统,使药剂均匀地分散于水中,若没有循环系统,应想方设法使其均匀。 无关痛痒°シ1级2009-03-07过溜热心问友2009-03-07自来水中的消毒剂一般为氯气或氯化物,可以通过静置或加热排出;重金属就不行了,如果反复加热煮沸,甚至会增加其含量;细菌仅通过在水中煮沸不会被彻底分解,但被煮沸后一般不会对身体健康产生影响;自来水中的泥土含量是极少的,如果是浑浊的河水之类,除去泥尘等建议加入明矾静置沉淀,取上清液;其他化合物要根据其化学性质而定,稳定性差的通过加热可以排出(前提是分解为水中正常矿物质成分或气体),稳定性强的可通过过滤或蒸馏的方式除杂。 采用煮沸蒸馏的方式会除去大量杂质得到纯净的水,单纯煮沸效果会差一点,但达到饮用的标准已经足够了。作为饮用水不是越纯越好的,毕竟蒸馏水中的矿物质已经被清除了,还会淋洗出人体内原有的矿物质营养。

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