scholarly journals Preparation of Sorbents Containing Straetlingite Phase from Zeolitic By-Product and Their Performance for Ammonium Ion Removal

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 3020
Author(s):  
Agnė Mikelionienė ◽  
Danutė Vaičiukynienė ◽  
Aras Kantautas ◽  
Algirdas Radzevičius ◽  
Katarzyna Zarębska

In this study, straetlingite-based sorbents were used for NH4+ ion removal from a synthetic aqueous solution and from the wastewater of an open recirculation African catfish farming system. This study was performed using column experiments with four different filtration rates (2, 5, 10, and 15 mL/min). It was determined that breakthrough points and sorption capacity could be affected by several parameters such as flow rate and mineral composition of sorption materials. In the synthetic aqueous solution, NH4+ removal reached the highest sorption capacity, i.e., 0.341 mg/g with the S30 sorbent at a filtration rate of 10 mL/min and an initial concentration of 10 mg/L of NH4+ ions. It is important to emphasize that, in this case, the Ce/C0 ratio of 0.9 was not reached after 420 min of sorption. It was also determined that the NH4+ sorption capacity was influenced by phosphorus. In the wastewater, the NH4+ sorption capacity was almost seven times lower than that in the synthetic aqueous solution. However, it should be highlighted that the P sorption capacity reached 0.512 mg/g. According to these results, it can be concluded that straetlingite-based sorbents can be used for NH4+ ion removal from a synthetic aqueous solution, as well as for both NH4+ and P removal from industrial wastewater. In the wastewater, a significantly higher sorption capacity of the investigated sorbents was detected for P than for NH4+.

2016 ◽  
Vol 57 (4) ◽  
pp. 571-576
Author(s):  
Dashnyam Munkhjargal ◽  
Janchiv Oyuntsetseg ◽  
Renchinhand Ulambayar ◽  
Jamsranjav Ganbaatar

2020 ◽  
Vol 24 (5) ◽  
pp. 1395-1399 ◽  
Author(s):  
Yuki Kamimoto ◽  
Takeshi Hagio ◽  
Yong-Jun Jung ◽  
Ryoichi Ichino ◽  
Kyungik Gil

2010 ◽  
Vol 18 (1) ◽  
pp. 54-61 ◽  
Author(s):  
Aušra Mažeikienė ◽  
Marina Valentukevičienė ◽  
Juozas Jankauskas

Experimental investigation of ammonium ion removal from drinking water were carried out using natural zeolite (clinoptilolite) fractions of 0.3–0.6 mm and 0.6–1.5 mm. Before using natural zeolite was washed and dried in an oven at a temperature of about 105 °C. Solutions with different ion power (solution 1 ‐ supplied tap water and NH4Cl, solution 2 — distillate water and NH4Cl; initial concentration of ammonium ions of 2 mg/l) were filtrated through an experimental filter column packed with 70 mm and 210 mm of zeolite media for comparison purposes. Comparing the results for different natural zeolite fractions it was determined that the removal is more efficient using a finer fraction. After filtering 30 l of solution 1 through the laboratory‐ scaled filter column packed with 70 mm height of 0.3–0.6 mm particle size zeolite media and 0.6–1.5 mm particle size, the efficiency fluctuated from 89% to 70% (finer particles) and from 94% to 54% (coarser particles). Comparing the efficiency of ammonium ion removal from solutions with different ion power (solution 1 and solution 2), it was noticed that concentration reached the limit of 0.5 mg/l in the 12th l of solution 1, whereas it was fifty times lower in the 12th l of solution 2. After filtering 10 l of filtrate through the filter media with the height of 210 mm using coarse particles, the efficiency of ammonium ion removal reached 84%. Santrauka Eksperimentiniai NH4 + šalinimo laboratorijos salygomis iš ruošiamo geriamojo vandens tyrimai buvo atlikti naudojant gamtinio ceolito (klinoptilolito) 0,3–0,6 mm ir 0,6—1,5 mm stambumo frakcijas. Prieš naudojant gamtinis ceolitas buvo išplautas ir išdžiovintas krosnyje apie 105 °C temperatūroje. Pro eksperimentinio filtro ceolito užpildus (užpildo aukštis pirmuoju atveju buvo 70 mm, antruoju ‐ 210 mm) 5 m/h greičiu praleisti skirtingos jonines jegos tirpalai (iš vandentiekio vandens bei NH4Cl (I) ir iš distiliuoto vandens bei NH4Cl (II) pasigaminti tirpalai, kuriuose pradinD amonio jonu koncentracija buvo 2,0 mg/l). Lyginant dvieju skirtingu gamtinio ceolito frakciju eksperimento rezultatus nustatyta, kad smulkesne frakcija efektyviau iš tirpalu šalina NH4 +. Prafiltravus po 30 litru pirmojo tirpalo pro dvi 70 mm aukščio skirtingo ceolito grūdeliu stambumo frakcijas, amonio jonu šalinimo iš tirpalo efektyvumas kito atitinkamai nuo 89 % iki 70 % (esant smulkesnei frakcijai) ir nuo 94 % iki 54 % (kai frakcija stambesne). Lyginant amonio jonu šalinimo iš skirtingos jonines jegos tirpalu efektyvuma pastebeta, kad 0,5 mg/l amonio jonu koncentracija pirmojo tirpalo filtrate pasiekta jau dvyliktajame filtrato litre, o antrojo (II) tirpalo filtrato dvyliktajame litre ji buvo 50 kartu mažesne. Prafiltravus pro rege‐neruota 210 mm aukščio 0,6–1,5 mm stambumo ceolito grūdeliu užpilda 10 litru pirmojo tirpalo, amonio jonu šalinimo iš tirpalo efektyvumas sieke 84 %. Резюме Экспериментальные исследования очистки питьевой воды от ионов аммония проводились в лабораторных условиях, используя природный цеолит (клиноптилолит) с содержанием фракции 0,3–0,6 мм и 0,6–1,5 мм. Перед использованием природный цеолит был промыт и высушен в печи при температуре 105 0C. Растворы различного ионного заряда (1-й раствор из водопроводной воды и NH4Cl и 2-й раствор из дистиллированной воды и NH4Cl, в которых первичная концентрация ионов аммония была 2,0 мг/л) были пропущены через цеолитовую загрузку экспериментального фильтра со скоростью 5 м/ч (высота загрузки в первом случае составляла 70 мм, во втором – 210 мм). При сравнении результатов эксперимента с двумя различными фракциями природного цеолита обнаружено, что мелкозернистая фракция эффективнее очищает растворы от NH4+. После фильтрования 30 л первичного раствора обеими фракциями различной зернистости цеолита эффективность очистки раствора от ионов аммония достигала соответственно от 70% до 89% (мелкозернистой фракции) и от 54% до 94% (крупнозернистой фракции). При сравнении результатов удаления ионов аммония из 1-го и 2-го растворов с разными ионными зарядами в 12-м литре 1-го раствора была обнаружена концентрация ионов аммония в 0,5 мг/л, что в 50 раз меньше, чем в 12-м литре профильтрованного 2-го раствора. После того, как было профильтровано 10 л первого раствора через регенерированную цеолитовую загрузку высотой в 210 мм (фракция 0,6–1,5 мм), эффект очистки раствора от ионов аммония достигал 84 %.


2015 ◽  
Vol 1095 ◽  
pp. 355-358
Author(s):  
Chun Xia Zhao ◽  
Chun Hui Zhang ◽  
Tan Meng ◽  
Shan Shan Han ◽  
Jia Yu Jiang ◽  
...  

An appropriate disposal technology should be developed for a mass of waterworks sludge (WWS) as the solid waste. While, it can be used to produce zeolite, containing a lot of aluminum and silicate elements. In addition, the synthetic zeolite was widely used because of smaller particle size and higher purity than clinoptilolite. Therefore, the WWS and sodium hydroxide were adopted as raw material; the synthetic zeolite was used as seed crystals to obtain WWS zeolite by induce crystallization, under normal pressure at 125 ºC. The adsorption and exchange capacity of WWS zeolite was 18.3 mg/g when the initial concentration of ammonium ion was 100 mg/L in wastewater.


1995 ◽  
Vol 18 (1-2) ◽  
pp. 35-50 ◽  
Author(s):  
Masatoshi Matsumura ◽  
Fidel Rey P. Nayve

2011 ◽  
Vol 50 (10) ◽  
pp. 6391-6403 ◽  
Author(s):  
Ayşe Çeçen Erbil ◽  
Elif Soyer ◽  
Bilsen Beler Baykal

1999 ◽  
Vol 22 (10) ◽  
pp. 845-853 ◽  
Author(s):  
Yasuyuki OHMORI ◽  
Yoshihiko HOSOI ◽  
Minoru OKUMURA ◽  
Kaoru FUJINAGA ◽  
Yasushi SEIKE

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