净水机文章
❶ 关于父母之爱文章的读书笔记怎样写
《母亲的纯净水来》读后感今天,我读自了一篇文章《母亲的纯净水》,让我感动了。
文章是这样的:一瓶纯净水一元或两元卖的不贵。每逢体育课时,大家都会喝着纯净水在激烈的运动后畅快的解渴。有一位女孩也这样。但是她的父母双双下岗,家里经济情况也不好,为什么妈妈在这件事上这么大方?她心里总有一个谜团。有一次体育课后,同桌没带纯净水,她便把水递了过去,同桌喝了一口说:“喂,你的水是凉白开。”“哈哈……”大家笑成一团。女孩羞得脸都红了。一回到家,她就责问妈妈:“你给我的是不是凉白开?”母亲说:“外面的水太多假的,我怕你喝坏肚子。”她有点不高兴。第二天,妈妈语重心长的对她说:“你明白吗,第一:穷不是错,富不是对。第二:穷人不可怜,那些笑话穷人的人才真的可怜。第三:再穷,人也得看得起自己,要是自己看不起自己,心就穷了。”那天她真的懂了妈妈说的话。
我觉得那个女孩的妈妈说的很对,穷真的没有什么,它不是光荣也绝不是一种屈辱,它是要改变一种现状,如果你把贫穷看做一件丑陋的衣衫,那么它就会像一块布,遮住了人们心中的光芒。如果你把贫穷看成指挥家手中的指挥棒,那么你就用它变换出自己美好的梦想和未来吧!
❷ 同心共创同行共享为标题写一篇关于净水器的文章
喔,好高大上的样子啊。
一、净水器也称净水机。
按滤芯组成结构分为RO反渗透净水机和超滤膜净水机、能量净水机、陶瓷净水器等。
RO反渗透净水机标配的是5级过滤,即:
第一级为PP棉,为初级过滤,主要过滤泥沙、铁锈这种肉眼可见的大颗粒的东西
第二级为颗粒炭、对水中的有机物和无机胶体具有强大的截留作用,具有除臭、去味、除余氯、脱色等功效
第三级为压缩炭、 对臭味,余氯,芳香族,COD有机物有良好的去除作用
第四级为RO反渗透膜、RO反渗透膜孔径为0.0001微米(0.1纳米),一个细菌要缩小4000倍,传染性病毒要缩小200倍以上才能通过,因此可以有
效去除水中细菌、病毒、重金属离子、农药残留物等有害物质
第五级为后置活性炭(也称小T33)5级;利用活性炭的吸附原理,能有效去除水中的余氯,有毒有害物质,改善水质和口感
超滤净水器是以超滤膜为主、其它滤芯如活性炭(不包括能量滤芯)为辅,超滤净水器按照安装方式分为立式与卧式两种,
立式超滤净水器由PP棉、颗粒活性碳、压缩活性炭、外压超滤膜、T33组成;
卧式超滤净水器《俗称管道超滤机》由不锈钢外壳及内压超滤膜、KDF组成。
超滤净水器有3至12级滤芯过滤,大体都是PP棉滤芯、碳滤芯、超滤膜、还有一些什么碱性 弱碱 除氯 之类的功能滤芯组成,
二、家用净水器售价在500-8000不等,超滤机一般最低为5级,最多13级,RO纯水机标配的是5级过滤,不同的牌子价格偏差很大,购买前要多方验证。
❸ 寻找《读者》里的一篇文章,讲的是一个孩子每天带着矿泉水上学,一天同学发现他瓶子里的是白开水,他感觉
是《母亲的纯净水》,很感人的说,全文如下:
一瓶普通的纯净水,两块钱;一瓶名牌的纯净水,三块钱。真的不贵。每逢体育课的时候,就有很多同学带着纯净水,以备在激烈地运动之后,可以酣畅地解渴。她也有。她的纯净水是乐百氏的,绿色的商标牌上,帅气的黎明穿着白衣,含着清亮腼腆的笑。每到周二和周五中午,吃过午饭,母亲就把纯净水拿出来,递给她。接过这瓶水的时候,她总是有些不安。家里的经济情况不怎么好,母亲早就下岗了,在街头卖零布,父亲的工资又不高,不过她更多的感觉却是高兴和满足,因为母亲毕竟在这件事上给了她面子,这大约是她跟得上班里那些时髦的同学的唯一一点时髦之处了。
一次体育课后,同桌没有带纯净水。她很自然地把自己的水递了过去。
“喂,你这水不像是纯净水。”同桌喝了一口说。
“怎么会?”她的心跳得急起来,“是我妈今天刚买的。
几个同学围拢过来:“不会是假冒的吧?假冒的便宜。”
“瞧,生产日期都看不见了。”
“颜色也有一点儿别扭。”一个同学拿起来尝了一口:“咦,像是凉白开呀!”大家静了一下,都笑了。是的,是像凉白开。瞬间,她突然清晰地意识到:自己喝了这么长时间的纯净水,的确有可能是凉白开。要不然,一向节俭的母亲怎么会单单在这件事上大方起来呢?
她当即扔掉了那瓶水。
“你给我的纯净水,是不是凉白开?”一进家门,她就问母亲。“是。”母亲说,“外面的假纯净水太多,我怕你喝坏肚子,就给你灌进了凉白开。”她看了她一眼,“有人说你什么了吗?”她不做声。母亲真虚伪,她想,明明是为了省钱,还说是为了我好。“当然,这么做也能省钱。”母亲仿佛看透了她的心思,又说,“你知道吗?家里一个月用七吨水,一吨水八毛五,差不多六块钱。要是给你买纯净水,一星期两次体育课,就得六块钱,够我们家一个月的水费了。这么省下去,一年能省一百多块钱,能买好多只鸡呢。
”母亲是对的。她知道。作为家里唯一的纯消费者,她没有能力为家里挣钱,总有义务为家里省钱——况且,喝凉白开和喝纯净水对她的身体来说真的没有什么区别,可她还是感到一种莫名的委屈和酸楚。“同学们有人笑话你吗。”母亲又问。
她点点头。
“那你听听我的想法。”母亲说,“我们是穷,这是真的。不过,你要明白这几个道理:一,穷不是错,富也不是对,穷富都是日子的一种过法。二,穷人不可怜。那些笑话穷人的人才真可怜。凭他怎么有钱,从根儿上查去,哪一家没有几代穷人?三,再穷,人也得看得起自己,要是看不起自己,心就穷了。心要是穷了,就真穷了。”
她点点头。那天晚上,她想了很多。
天亮的时候,她真的想明白了母亲的话:穷真的没什么。它不是一种光荣,也绝不是一种耻辱;它只是一种相比较而言的生活状态,是她需要认识和改变的一种现状。如果她把它看作是一件丑陋的衣衫,那么它就真的遮住了她心灵的光芒。如果她把它看作是一件宽大的布料,那么她就可以把它做成一件温暖的新衣——甚至,她还可以把它做成魔术师手中的那种幕布,用它变幻出绚丽多姿的未来和梦想。就是这样。
后来,她去上体育课,依然拿着母亲给她灌的凉白开。也有同学故意问她:“里面是凉白开吗?”她就沉静地看着问话的人说:“是。”
再后来,她考上了大学,毕业后找了一个不错的工作,拿着不菲的薪水。她可以随心所欲地喝各种名贵的饮料,更不用说纯净水了。可是,只要在家里,她还是喜欢喝凉白开。她对我说,她从来没有喝过比凉白开的味道更好的纯净水。
❹ 企业为员工安装净水器的文章怎么写
公司送温暖之类的,当成一个新闻稿件去写,再配上一些9图片就可以啊
❺ 如何写一篇文章提醒客户净水器的第一节滤芯到期需换了
你就写一篇关于净水器滤芯更换的时间文章了。告诉客户一节滤芯可以用多长时间,有个参考值给客户,人家看到时间差不多了就会更换了。
❻ 有必要安装净水器吗
肯定有用,尤其是在天朝………最直观的就是看看净水器替换下来的滤芯就专知道了。我想反问这属个问题,是想问为什么有的人觉得没用,我认为可能有这几个原因:一,对污染的认识不足,作为为普通百姓其实是很难了解到污染的真实情况的,中国的水质又有谁能说的清楚,在这个恨不得空气都特供的年代里,希望大家能有个清醒的认识。二,中国人的一些传统心理作祟,我们有一个特点,就是不爱在看不见的地方花钱,宁可装修多花几万也不装个净水器。三,净水器的选择太专业,很多人不太懂,选择错误,造成效果不佳。
❼ 关于纯净水的英文文章
定义
Purified water is water from any source that is physically processed to remove impurities. Distilled water and deionized water have been the most common forms of purified water, but water can also be purified by other processes including reverse osmosis, carbon filtration, microporous filtration, ultrafiltration, ultraviolet oxidation, or electrodialysis. In recent decades, a combination of the above processes have come into use to proce water of such high purity that its trace contaminants are measured in parts per billion (ppb) or parts per trillion (ppt). Purified water has many uses, largely in science and engineering laboratories and instries, and is proced in a range of purities.
几种纯净水的方法形式Methods of water purifing
Distilled water has virtually all of its impurities removed through distillation. Distillation involves boiling the water and then condensing the steam into a clean container, leaving nearly all of the solid contaminants behind. Distillation proces very pure water but also leaves behind a leftover white or yellowish mineral scale on the distillation apparatus, which requires that the apparatus be frequently cleaned.
For many applications, cheaper alternatives such as deionized water are used in place of distilled water.
Double-distilled water (abbreviated "ddH2O", "Bidest. water" or "DDW") is prepared by double distillation of water. Historically, it was the de facto standard for highly purified laboratory water for biochemistry and trace analysis until combination methods of purification became widespread.
Deionized water which is also known as demineralized water (DI water or de-ionized water; can also be spelled deionised water, see spelling differences) is water that has had its mineral ions removed, such as cations from sodium, calcium, iron, copper and anions such as chloride and bromide. Deionization is a physical process which uses specially-manufactured ion exchange resins which bind to and filter out the mineral salts from water. Because the majority of water impurities are dissolved salts, deionization proces a high purity water that is generally similar to distilled water, and this process is quick and without scale builp. However, deionization does not significantly remove uncharged organic molecules, viruses or bacteria, except by incidental trapping in the resin. Specially made strong base anion resins can remove Gram-negative bacteria. Deionization can be done continuously and inexpensively using electrodeionization.
It should be noted that deionization does not remove the hydroxide or hydronium ions from water; as water self-ionizes to equilibrium, this would lead to the removal of the water itself.
Other processes are also used to purify water, including reverse osmosis, carbon filtration, microporous filtration, ultrafiltration, ultraviolet oxidation, or electrodialysis. These are used in place of, or in addition to the processes listed above.
饮用纯净水Drinking purified water
Many beverage manufacturers use distilled water to ensure a drink's purity and taste. Bottled distilled water is sold as well, and can usually be found in supermarkets. Water purification, such as distillation, is especially important in regions where water resources or tap water is not suitable for ingesting without boiling or chemical treatment.
Water filtration devices are becoming increasingly common in households. Most of these devices do not distill water, though there continues to be an increase in consumer-oriented water distillers and reverse osmosis machines being sold and used. Municipal water supplies often add or have trace impurities at levels which are regulated to be safe for consumption. Much of these additional impurities, such as volatile organic compounds, fluoride, and an estimated 75,000+ other chemical compounds[citation needed] are not removed through conventional filtration; however, distillation and reverse osmosis eliminate nearly all of these impurities.
The drinking of purified water has been both advocated and discouraged for health reasons. Purified water lacks minerals and ions, such as calcium, which are normally found in potable (drinking) water, and which have important biological functions such as in nervous system homeostasis. Some percentage of our daily consumption of these minerals and ions come from our drinking water, but most of them come from the food we eat, making DI water perfectly fine to drink if one has food in his or her system. The lack of naturally-occurring minerals in distilled water has raised some concerns. The Journal of General Internal Medicine[3] published a study on the mineral contents of different waters available in the US. The study concluded, "drinking water sources available to North Americans may contain high levels of Calcium, Magnesium, and Sodium and may provide clinically important portions of the recommended dietary intake of these minerals," and further encouraged indivials to "check the mineral content of their drinking water, whether tap or bottled, and choose water most appropriate for their needs." Since distilled water is devoid of minerals, supplemental mineral intake through diet is needed to maintain proper health.
It is often observed that consumption of "hard" water, or water that has some minerals, is associated with beneficial cardiovascular effects. As noted in the American Journal of Epidemiology, consumption of hard drinking water is negatively correlated with atherosclerotic heart disease.[4] Since distilled water is free of minerals, it will not have these potential benefits.
It has been suggested that because distilled water lacks fluoride ions that are added by a minority of governments (e.g., municipalities in the United States) at water treatment plants using sodium hexafluorosilicate or hexafluorosilicic acid for their effect on the inhibition of cavity formation: the drinking of distilled water may increase the risk of tooth decay.[citation needed] However, many medical authorities argue that the effects of fluoridation on teeth are topical (brushed on) rather than systemic (swallowed). Also the benefit of fluoride supplementation, for any purpose, should be cautioned e to potential negative effects to IQ and motor functions.
The costs associated with water distillation have generally been prohibitive. However, distilling water with solar water distillers is becoming increasingly popular around the world; they can be relatively simple to design and build.
❽ 自来水应不应该用净水器,今天看了几篇文章,说的是自来水与开水的对比,据说开水是硬水,而自来水是超硬
过滤肯定没有问题,怎么可能变成软水真是无语!不管怎么说,开水正常内来说比自来水好多了容,烧开的水什么细菌都灭绝完毕,什么水垢等等几乎全部沉底,不喝沉底下面的开水就行了!选择净水器还是选择好点的,什么类似还真的不是很了解,我们不用都是用一般纯净水而已
❾ 求公司宿舍区安装直饮水系统对员工好处的文章
随着我们人民生活水平日益提高,人们对饮用水的要求也越来越高越严格。
水环境日益恶化导致常规的水处理无法完全去除水中的有害成分,严重影响人们的身体健康。
直饮水的制水过程洁净无污染,不排放任何有毒、有害以及对环境造成污染的废液,完全杜绝二次污染。
自来水管网系统中存在相当严重的二次污染问题,如管道腐蚀、渗漏、结垢、沉淀、屋顶水箱未经常清洗消毒等。 纯净水、蒸馏水等在生产过程中把对人体有害的成分去除的同时,把对人体有益的、必需的微量元素也去除掉,所以太纯的水对人体健康不利。 桶装水在使用过程中存在二次污染的问题,如饮水机本身的污染、昆虫进入出水口、空气直接进入水桶产生的污染等。
直饮水就没有以上这些弊端。
直饮水,是通过主机制水(大型净水设备),将制好的纯净水经过管网输送到每一个终端办公室,在每个终端安放一台既节能环保又美观的IC卡智能管线机。通过刷卡取水,足不出户就可实现自助饮水、健康饮水。
设备里面的抑菌干膜,过滤精度高达0.01微米,可有效去除水中的泥沙、铁锈、胶体、细菌、病毒等有害物质,净化水可直饮,同时保留有益的矿物质和微量元素。运用科技创新,让您单位厨房,家庭做饭、煲汤、喝水、冲凉、洗衣等用水,都用上安全、便捷的直饮水,为您的身体健康保驾护航!