艾潔淨水器

Environ Sci Technol. 2008 Nov 1;42(21):8070-5.
Removal of ammonia by OH radical in aqueous phase.
Huang L1, Li L, Dong W, Liu Y, Hou H.

Many advanced oxidation technologies have been developed to remove ammonia in wastewater. All these technologies have one common characteristic, that is, the removal processes involve OH radical (*OH). In this research work, H2O2 was selected as *OH precursor. The removal of ammonia under 253.7 nm irradiation from low-pressure mercury lamp in the presence of H2O2 was studied to investigate the ammonia removal efficiency by *OH. Results show that the *OH, generated by H2O2 photolysis, could oxidize NH3 to NO2- and further to NO3-. Removal efficiencies of ammonia were low and were affected by initial pH value and ammonia concentration. Laser flash photolysis technique with transient absorption spectra of nanosecond was used to investigate the oxidation pathway and kinetics of ammonia oxidation by *OH. Results illustrate that *OH could oxidize NH3 to form *NH2 with a second-order rate constant of (1.0 +/- 0.1) x 10(8) M(-1) s(-1) (20 degrees C). *NH2, the main product of *OH with NH3, would further react with H2O2 to yield *NHOH. Since *NHOH could not stay stable in solution, it would rapidly convert to NH2O2- and consequently NO2- and NO3-. The rate constants for these elementary reactions were also given. The low removal efficiency of ammonia by *OH was mainly due to the slow reaction rate constant
 
最後編輯:
Many advanced oxidation technologies have been developed to remove ammonia in wastewater. All these technologies have one common characteristic, that is, the removal processes involve OH radical (*OH). In this research work, H2O2 was selected as *OH precursor. The removal of ammonia under 253.7 nm irradiation from low-pressure mercury lamp in the presence of H2O2 was studied to investigate the ammonia removal efficiency by *OH. Results show that the *OH, generated by H2O2 photolysis, could oxidize NH3 to NO2- and further to NO3-. Removal efficiencies of ammonia were low and were affected by initial pH value and ammonia concentration. Laser flash photolysis technique with transient absorption spectra of nanosecond was used to investigate the oxidation pathway and kinetics of ammonia oxidation by *OH. Results illustrate that *OH could oxidize NH3 to form *NH2 with a second-order rate constant of (1.0 +/- 0.1) x 10(8) M(-1) s(-1) (20 degrees C). *NH2, the main product of *OH with NH3, would further react with H2O2 to yield *NHOH. Since *NHOH could not stay stable in solution, it would rapidly convert to NH2O2- and consequently NO2- and NO3-. The rate constants for these elementary reactions were also given. The low removal efficiency of ammonia by *OH was mainly due to the slow reaction rate constant

感謝小益大清楚明瞭的解析:em25:
 
http://www.cichlid-forum.com/phpBB/viewtopic.php?t=242062

I haven't used it, but I have just watched the associated YouTube video by the manufacturer. The claim is that the filter uses a catalyst, which coverts all harmful nitrogen compounds (ammonia, nitrite, and nitrate) into gaseous nitrogen (N2). If true, N2 would leave the tank as gas, and enter the air. N2 makes up 80% of the air anyhow, which means it is a completely harmless and odorless gas. An ideal solution!
 
http://www.cichlid-forum.com/phpBB/viewtopic.php?t=242062

I haven't used it, but I have just watched the associated YouTube video by the manufacturer. The claim is that the filter uses a catalyst, which coverts all harmful nitrogen compounds (ammonia, nitrite, and nitrate) into gaseous nitrogen (N2). If true, N2 would leave the tank as gas, and enter the air. N2 makes up 80% of the air anyhow, which means it is a completely harmless and odorless gas. An ideal solution!
我知道你沒用過,我也沒用過只是想知道這個東西的CP質而已
畢竟他的中文介紹太過於簡單導致我不太確定此物是否有他一定的功效
 
我第一天剛裝艾洁--二代淨水器時蛋白機泡泡變粗快速往下掉,我也有使用cs豆豆桶在翻滾豆豆,蛋白本來泡泡很綿密很正常在推髒水(蛋白是jns co1)泡泡忽然快速一直往下掉,整個很奇怪,過了第三天泡泡有越來越正常的現象但還沒完全正常,還在觀察中。
 
這東西之前看到也蠻覺得有興趣的而去搜尋了一下相關資料,用在海水缸簡單講就是電解海水,利用鈦網做為電極,陰極將no2、no3變成NH3,陽極產生氯氣跟水反應成HCLO(次氯酸,漂白水主要成分),NH3再跟HCLO反應生成N2,但是為了減小次氯酸殘留毒害的問題,所用的功率一定很小(日本有大功率的機器,漁港用來接海水後產生有消毒殺菌功效的沖洗水,清洗地板及用具),而且海水成分複雜,電極可能很快效率就降低很多,要效果顯著的話可能電極要天天換~
 
google一下,對岸有很多,還有人開箱測試..
http://www.cmfish.com/bbs/forum.php?mod=viewthread&tid=243025

今天剛好是對岸雙12,興沖沖的找好了。
還有另一個小玩意好像蠻好玩的(OF旋克除油膜器),它的入水會隨水面自動調整吔..
都很便宜想要下手才發現...吃220v的.....:em19: 殘念...........

最後...因為雙12太便宜了......就敗了一個毫不相關的東西來玩玩..哈哈..:em01:
http://tw.taobao.com/item/42202837021.htm?fromSite=main&spm=5767.1487504.1998297214.14.Kzt2V9
 
假設這台機器真的能產生氫氧基,那麼他就跟臭氧幾乎是相同的東西了~靠強氧化力來氧化氨與亞硝酸變成最終氧化態硝酸鹽~

由於水中的有積物太多能被氧化,所以理論上來說這種產品絕無可能替代硝化系統,要處理龐大的氨與亞硝酸需要超高劑量的氫氧基,然而這種劑量可以瞬間毒殺魚缸內所有的生物包含細菌...

假設這台有那麼一點點的作用那麼就是增加硝酸鹽而不是減少,假設這台完全沒有作用硝化系統也能自然產生硝酸鹽...

這原理就是利用陰極的石墨還原成過氧化氫,過氧化氫再與陽極鐵電極溶出的亞鐵離子形成氫氧自由基,這個過程又稱"芬頓試劑",不懂的人可以用這個關鍵字查所有的研究文獻看這到底能不能降硝酸鹽磷酸鹽,根本不可能嘛~很多廠商都很愛用這種"偽科學"來行詐騙之實= =
 
赤師兄利害,寫了一堆我完全不懂的中文字,師兄學識之廣令小弟佩服。
無知的我,就是明知可能是gimmick產品,還是會神推鬼擁地按下購買這個button :em19:
昨天已經安裝在沙缸,只測了測No3(大概25-30),就讓它行兩三天會怎樣。God Bless
 
我覺得機制比較像這個

把光改成電

PH84_F_13_141213113437.JPG
 
我覺得機制比較像這個

把光改成電

PH84_F_13_141213113437.JPG
這個是光觸媒二氧化鈦經紫外線激發成氫氧基,又稱UV TiO2光芬頓法,這個成本比艾潔淨水器高多了,因為還要加紫外線燈管,但艾潔淨水器不是利用光觸媒原理唷~是用電生成芬頓(Fenton)試劑原理,一般的芬頓試劑只要過氧化氫加上二價亞鐵離子就能產生氫氧基,這台淨水器的陰極是石墨(碳的同素異構物),通電流後產生過氧化氫,陽極是可溶性鐵....產生二價亞鐵離子....

光芬頓法跟電芬頓法基本上都是芬頓試劑的原理延伸的,其實這跟臭氧原理也完全相同.都是利用強氧化力來氧化有積物...因氫氧基比臭氧氧化力更強,所以偽了避免毒殺生物氫氧基的釋放量當然也非常的低微,有跟沒有是差不多的,甚至連把氨氧化成硝酸鹽的能力都遠比硝化系統差太多啦~~所以也從沒人用電芬頓法來替代硝化系統,因為氫氧基對生物是劇毒,誰會用毒藥來處理氨氮廢物??

基於以上的解釋,既不能氧化有機物,又不能還原NP鹽,那這台機器又能幹什麼用??

以前也有推出光觸媒淨水器阿~誰的水真正的被淨過了?

先跟各位抱歉,我語氣很重是因為我真的很討厭廠商用這種偽科學來欺騙善良的大眾,眼前得這個世界充滿了各式各樣的詐騙@@
 
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