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凈水器選購需要注意哪幾點(diǎn)，凈水設(shè)備原理介紹

2019-07-24 59243

凈水器的設(shè)計(jì)和制造是一門綜合性科學(xué)技術(shù)。凈水器的設(shè)計(jì)原則應(yīng)為用戶著想。我國人員稠密地區(qū)有機(jī)物污染嚴(yán)重，各地鄉(xiāng)鎮(zhèn)小型的供水企業(yè)和地下水使用地區(qū)存在著細(xì)菌污染的問題。因此只有部分品質(zhì)優(yōu)良的凈水器能適應(yīng)全國各地不同的水質(zhì)，所以凈水器生產(chǎn)廠商應(yīng)根據(jù)不同地區(qū)的水質(zhì)條件，精心設(shè)計(jì)出能適應(yīng)不同水源，但處理效果良好的凈水器。

1、選購凈水器時(shí)，要先搞清楚你需要的是飲用水還是生活用水，不要被市場上各種概念迷惑。處理生活用水的產(chǎn)品，有入戶過濾(也稱中央凈水機(jī))。入戶過濾通常需要在裝修期間就進(jìn)行排管。而選擇飲用水過濾的凈水器時(shí)，不能一味看重處理量，出水水質(zhì)也非常重要，除了能除氯、除大顆粒雜質(zhì)外，還要看能夠過濾其它污染物。

2、終端消費(fèi)者購買凈水器最需要注意的就是凈水器的水處理技術(shù)，技術(shù)過硬才能產(chǎn)出安全健康好水。
目前流行的五種技術(shù)是：1、活性炭吸附;2、超濾機(jī)又稱中空纖維過濾;3、純水機(jī)(又稱 RO 及或者反滲透);4、微濾;5、化學(xué)還原法的 KDF。市面上多采用超濾膜分離凈水處理，來過濾掉水中的泥沙、鐵銹、懸浮物、膠體、細(xì)菌、大分子有機(jī)物等有害物質(zhì)，同時(shí)可保留對人體有益的微量元素和礦物質(zhì)，經(jīng)過濾后的自來水可以直接飲用，礦泉水均是通過超濾膜過濾凈化制成的。

3、應(yīng)根據(jù)水質(zhì)的不同選用不同類型的凈水器。如我國北方地區(qū)水質(zhì)硬度高，南方石灰巖地區(qū)水中鈣、鎂離子含量較高，容易結(jié)垢，應(yīng)選購帶離子交換樹脂濾芯的高級過濾凈水器;城鄉(xiāng)自來水中含氯、有機(jī)物含量較多，異色異味較重，可選用活性炭載量較多的家用凈水器;水質(zhì)長期較混濁的自來水凈化時(shí)，應(yīng)選購有粗濾、精濾雙重功能的凈水器;水中污染嚴(yán)重，要求徹底濾除水中的細(xì)菌、病毒、異色異味、農(nóng)藥、重金屬和其它雜質(zhì)的，應(yīng)選購反滲透膜純水器。

4、凈水器的安裝和售后服務(wù)至關(guān)重要，凈水器不像其它家電產(chǎn)品，它更需要定期保養(yǎng)。上門測試水質(zhì)、設(shè)計(jì)、安裝調(diào)試到跟蹤回訪、維護(hù)檢修、定期返廠更換濾料等，都關(guān)系到購買者的切身利益。

常用的水處理方法有：

1、沉淀物過濾法
2、硬水軟化法
3、活性炭吸附法
4、去離子法
5、逆滲透法
6、超過濾法
7、蒸餾法
8、紫外線消毒法
9、生物化學(xué)法等

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