凈水機文章
❶ 關於父母之愛文章的讀書筆記怎樣寫
《母親的純凈水來》讀後感今天,我讀自了一篇文章《母親的純凈水》,讓我感動了。
文章是這樣的:一瓶純凈水一元或兩元賣的不貴。每逢體育課時,大家都會喝著純凈水在激烈的運動後暢快的解渴。有一位女孩也這樣。但是她的父母雙雙下崗,家裡經濟情況也不好,為什麼媽媽在這件事上這么大方?她心裡總有一個謎團。有一次體育課後,同桌沒帶純凈水,她便把水遞了過去,同桌喝了一口說:「喂,你的水是涼白開。」「哈哈……」大家笑成一團。女孩羞得臉都紅了。一回到家,她就責問媽媽:「你給我的是不是涼白開?」母親說:「外面的水太多假的,我怕你喝壞肚子。」她有點不高興。第二天,媽媽語重心長的對她說:「你明白嗎,第一:窮不是錯,富不是對。第二:窮人不可憐,那些笑話窮人的人才真的可憐。第三:再窮,人也得看得起自己,要是自己看不起自己,心就窮了。」那天她真的懂了媽媽說的話。
我覺得那個女孩的媽媽說的很對,窮真的沒有什麼,它不是光榮也絕不是一種屈辱,它是要改變一種現狀,如果你把貧窮看做一件醜陋的衣衫,那麼它就會像一塊布,遮住了人們心中的光芒。如果你把貧窮看成指揮家手中的指揮棒,那麼你就用它變換出自己美好的夢想和未來吧!
❷ 同心共創同行共享為標題寫一篇關於凈水器的文章
喔,好高大上的樣子啊。
一、凈水器也稱凈水機。
按濾芯組成結構分為RO反滲透凈水機和超濾膜凈水機、能量凈水機、陶瓷凈水器等。
RO反滲透凈水機標配的是5級過濾,即:
第一級為PP棉,為初級過濾,主要過濾泥沙、鐵銹這種肉眼可見的大顆粒的東西
第二級為顆粒炭、對水中的有機物和無機膠體具有強大的截留作用,具有除臭、去味、除余氯、脫色等功效
第三級為壓縮炭、 對臭味,余氯,芳香族,COD有機物有良好的去除作用
第四級為RO反滲透膜、RO反滲透膜孔徑為0.0001微米(0.1納米),一個細菌要縮小4000倍,傳染性病毒要縮小200倍以上才能通過,因此可以有
效去除水中細菌、病毒、重金屬離子、農葯殘留物等有害物質
第五級為後置活性炭(也稱小T33)5級;利用活性炭的吸附原理,能有效去除水中的余氯,有毒有害物質,改善水質和口感
超濾凈水器是以超濾膜為主、其它濾芯如活性炭(不包括能量濾芯)為輔,超濾凈水器按照安裝方式分為立式與卧式兩種,
立式超濾凈水器由PP棉、顆粒活性碳、壓縮活性炭、外壓超濾膜、T33組成;
卧式超濾凈水器《俗稱管道超濾機》由不銹鋼外殼及內壓超濾膜、KDF組成。
超濾凈水器有3至12級濾芯過濾,大體都是PP棉濾芯、碳濾芯、超濾膜、還有一些什麼鹼性 弱鹼 除氯 之類的功能濾芯組成,
二、家用凈水器售價在500-8000不等,超濾機一般最低為5級,最多13級,RO純水機標配的是5級過濾,不同的牌子價格偏差很大,購買前要多方驗證。
❸ 尋找《讀者》里的一篇文章,講的是一個孩子每天帶著礦泉水上學,一天同學發現他瓶子里的是白開水,他感覺
是《母親的純凈水》,很感人的說,全文如下:
一瓶普通的純凈水,兩塊錢;一瓶名牌的純凈水,三塊錢。真的不貴。每逢體育課的時候,就有很多同學帶著純凈水,以備在激烈地運動之後,可以酣暢地解渴。她也有。她的純凈水是樂百氏的,綠色的商標牌上,帥氣的黎明穿著白衣,含著清亮靦腆的笑。每到周二和周五中午,吃過午飯,母親就把純凈水拿出來,遞給她。接過這瓶水的時候,她總是有些不安。家裡的經濟情況不怎麼好,母親早就下崗了,在街頭賣零布,父親的工資又不高,不過她更多的感覺卻是高興和滿足,因為母親畢竟在這件事上給了她面子,這大約是她跟得上班裡那些時髦的同學的唯一一點時髦之處了。
一次體育課後,同桌沒有帶純凈水。她很自然地把自己的水遞了過去。
「喂,你這水不像是純凈水。」同桌喝了一口說。
「怎麼會?」她的心跳得急起來,「是我媽今天剛買的。
幾個同學圍攏過來:「不會是假冒的吧?假冒的便宜。」
「瞧,生產日期都看不見了。」
「顏色也有一點兒別扭。」一個同學拿起來嘗了一口:「咦,像是涼白開呀!」大家靜了一下,都笑了。是的,是像涼白開。瞬間,她突然清晰地意識到:自己喝了這么長時間的純凈水,的確有可能是涼白開。要不然,一向節儉的母親怎麼會單單在這件事上大方起來呢?
她當即扔掉了那瓶水。
「你給我的純凈水,是不是涼白開?」一進家門,她就問母親。「是。」母親說,「外面的假純凈水太多,我怕你喝壞肚子,就給你灌進了涼白開。」她看了她一眼,「有人說你什麼了嗎?」她不做聲。母親真虛偽,她想,明明是為了省錢,還說是為了我好。「當然,這么做也能省錢。」母親彷彿看透了她的心思,又說,「你知道嗎?家裡一個月用七噸水,一噸水八毛五,差不多六塊錢。要是給你買純凈水,一星期兩次體育課,就得六塊錢,夠我們家一個月的水費了。這么省下去,一年能省一百多塊錢,能買好多隻雞呢。
」母親是對的。她知道。作為家裡唯一的純消費者,她沒有能力為家裡掙錢,總有義務為家裡省錢——況且,喝涼白開和喝純凈水對她的身體來說真的沒有什麼區別,可她還是感到一種莫名的委屈和酸楚。「同學們有人笑話你嗎。」母親又問。
她點點頭。
「那你聽聽我的想法。」母親說,「我們是窮,這是真的。不過,你要明白這幾個道理:一,窮不是錯,富也不是對,窮富都是日子的一種過法。二,窮人不可憐。那些笑話窮人的人才真可憐。憑他怎麼有錢,從根兒上查去,哪一家沒有幾代窮人?三,再窮,人也得看得起自己,要是看不起自己,心就窮了。心要是窮了,就真窮了。」
她點點頭。那天晚上,她想了很多。
天亮的時候,她真的想明白了母親的話:窮真的沒什麼。它不是一種光榮,也絕不是一種恥辱;它只是一種相比較而言的生活狀態,是她需要認識和改變的一種現狀。如果她把它看作是一件醜陋的衣衫,那麼它就真的遮住了她心靈的光芒。如果她把它看作是一件寬大的布料,那麼她就可以把它做成一件溫暖的新衣——甚至,她還可以把它做成魔術師手中的那種幕布,用它變幻出絢麗多姿的未來和夢想。就是這樣。
後來,她去上體育課,依然拿著母親給她灌的涼白開。也有同學故意問她:「裡面是涼白開嗎?」她就沉靜地看著問話的人說:「是。」
再後來,她考上了大學,畢業後找了一個不錯的工作,拿著不菲的薪水。她可以隨心所欲地喝各種名貴的飲料,更不用說純凈水了。可是,只要在家裡,她還是喜歡喝涼白開。她對我說,她從來沒有喝過比涼白開的味道更好的純凈水。
❹ 企業為員工安裝凈水器的文章怎麼寫
公司送溫暖之類的,當成一個新聞稿件去寫,再配上一些9圖片就可以啊
❺ 如何寫一篇文章提醒客戶凈水器的第一節濾芯到期需換了
你就寫一篇關於凈水器濾芯更換的時間文章了。告訴客戶一節濾芯可以用多長時間,有個參考值給客戶,人家看到時間差不多了就會更換了。
❻ 有必要安裝凈水器嗎
肯定有用,尤其是在天朝………最直觀的就是看看凈水器替換下來的濾芯就專知道了。我想反問這屬個問題,是想問為什麼有的人覺得沒用,我認為可能有這幾個原因:一,對污染的認識不足,作為為普通百姓其實是很難了解到污染的真實情況的,中國的水質又有誰能說的清楚,在這個恨不得空氣都特供的年代裡,希望大家能有個清醒的認識。二,中國人的一些傳統心理作祟,我們有一個特點,就是不愛在看不見的地方花錢,寧可裝修多花幾萬也不裝個凈水器。三,凈水器的選擇太專業,很多人不太懂,選擇錯誤,造成效果不佳。
❼ 關於純凈水的英文文章
定義
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.
幾種純凈水的方法形式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.
飲用純凈水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 自來水應不應該用凈水器,今天看了幾篇文章,說的是自來水與開水的對比,據說開水是硬水,而自來水是超硬
過濾肯定沒有問題,怎麼可能變成軟水真是無語!不管怎麼說,開水正常內來說比自來水好多了容,燒開的水什麼細菌都滅絕完畢,什麼水垢等等幾乎全部沉底,不喝沉底下面的開水就行了!選擇凈水器還是選擇好點的,什麼類似還真的不是很了解,我們不用都是用一般純凈水而已
❾ 求公司宿舍區安裝直飲水系統對員工好處的文章
隨著我們人民生活水平日益提高,人們對飲用水的要求也越來越高越嚴格。
水環境日益惡化導致常規的水處理無法完全去除水中的有害成分,嚴重影響人們的身體健康。
直飲水的制水過程潔凈無污染,不排放任何有毒、有害以及對環境造成污染的廢液,完全杜絕二次污染。
自來水管網系統中存在相當嚴重的二次污染問題,如管道腐蝕、滲漏、結垢、沉澱、屋頂水箱未經常清洗消毒等。 純凈水、蒸餾水等在生產過程中把對人體有害的成分去除的同時,把對人體有益的、必需的微量元素也去除掉,所以太純的水對人體健康不利。 桶裝水在使用過程中存在二次污染的問題,如飲水機本身的污染、昆蟲進入出水口、空氣直接進入水桶產生的污染等。
直飲水就沒有以上這些弊端。
直飲水,是通過主機制水(大型凈水設備),將制好的純凈水經過管網輸送到每一個終端辦公室,在每個終端安放一台既節能環保又美觀的IC卡智能管線機。通過刷卡取水,足不出戶就可實現自助飲水、健康飲水。
設備裡面的抑菌干膜,過濾精度高達0.01微米,可有效去除水中的泥沙、鐵銹、膠體、細菌、病毒等有害物質,凈化水可直飲,同時保留有益的礦物質和微量元素。運用科技創新,讓您單位廚房,家庭做飯、煲湯、喝水、沖涼、洗衣等用水,都用上安全、便捷的直飲水,為您的身體健康保駕護航!