scholarly journals Effects of Operation Parameters on Heavy Metallic Ion Removal from Mine Waste by Natural Zeolite

2018 ◽  
pp. 10-24
Author(s):  
Amanda L. Ciosek ◽  
Grace K. Luk
Keyword(s):  
Natural Zeolite ◽  
Mine Waste ◽  
Ion Removal ◽  
Operation Parameters

scholarly journals LABORATORY STUDY OF AMMONIUM ION REMOVAL BY USING ZEOLITE (CLINOPTILOLITE) TO TREAT DRINKING WATER

2010 ◽  
Vol 18 (1) ◽  
pp. 54-61 ◽  
Author(s):  
Aušra Mažeikienė ◽  
Marina Valentukevičienė ◽  
Juozas Jankauskas
Keyword(s):  
Particle Size ◽  
Drinking Water ◽  
Natural Zeolite ◽  
Tap Water ◽  
Ammonium Ion ◽  
Coarse Particles ◽  
Ammonium Ions ◽  
Ion Removal ◽  
Ammonium Ion Removal ◽  
Nh4cl Solution

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 %.

Ammonium Ion Removal with a Natural Zeolite in Monodispersed and Segregated Fluidized Beds

2011 ◽  
Vol 50 (10) ◽  
pp. 6391-6403 ◽  
Author(s):  
Ayşe Çeçen Erbil ◽  
Elif Soyer ◽  
Bilsen Beler Baykal
Keyword(s):  
Natural Zeolite ◽  
Fluidized Beds ◽  
Ammonium Ion ◽  
Ion Removal ◽  
Ammonium Ion Removal

scholarly journals The Simple Design Method of Ammonium Ion Removal Equipment with Packed Natural Zeolite.

1999 ◽  
Vol 22 (10) ◽  
pp. 845-853 ◽  
Author(s):  
Yasuyuki OHMORI ◽  
Yoshihiko HOSOI ◽  
Minoru OKUMURA ◽  
Kaoru FUJINAGA ◽  
Yasushi SEIKE
Keyword(s):  
Natural Zeolite ◽  
Design Method ◽  
Ammonium Ion ◽  
Simple Design ◽  
Ion Removal ◽  
Ammonium Ion Removal ◽  
Removal Equipment

Nitrogen and organics removal from industrial wastewater using natural zeolite media

2000 ◽  
Vol 42 (5-6) ◽  
pp. 127-134 ◽  
Author(s):  
Y.-C. Chung ◽  
D.-H. Son ◽  
D.-H. Ahn
Keyword(s):  
Natural Zeolite ◽  
Industrial Wastewater ◽  
High Strength ◽  
Ammonia Nitrogen ◽  
Ammonium Ion ◽  
Nitrifying Bacteria ◽  
Ion Removal ◽  
Biological Removal ◽  
Organics Removal ◽  
Raw Wastewater

Biological removal of nitrogen from industrial wastewater was investigated by a novel O/A (oxic/anoxic) type process with natural zeolite circulation. This process consists of ammonium ion removal by zeolites and subsequent biological regeneration of zeolites. Two types of raw wastewater with high strength ammonia nitrogen (300–400 mg/L) from a fertilizer industry and a tannery industry, separately, were prepared for laboratory scale experiments. After ammonia ion removal from the influent wastewater by zeolite in the anoxic reactor, nitrifying bacteria, either attached to the zeolite or suspended in solution, participated in the conversion of ammonia to nitrite and nitrate in the following oxic reactor. Zeolites saturated with ammonia nitrogen were continuously regenerated and circulated in the proposed process without the use of chemical regenerants such as NaCl. Experimental results showed an 88–92% removal of ammonia nitrogen and high settleability in the final clarifier for both examples of wastewater. The results support that the proposed biological reactors with zeolite powder circulation are very effective in treating high strength nitrogen bearing wastewater.

scholarly journals Kinetic modelling of the removal of multiple heavy metallic ions from mine waste by natural zeolite sorption

2021 ◽  
Author(s):  
Amanda L. Ciosek ◽  
Grace K. Luk
Keyword(s):  
Natural Zeolite ◽  
Kinetic Modelling ◽  
Mine Waste ◽  
Sorption Process ◽  
Sorption Kinetics ◽  
Contact Period ◽  
Metallic Ions ◽  
Batch Mode ◽  
Component System ◽  
Multi Component System

This study investigates the sorption of heavy metallic ions (HMIs), specifically lead (Pb2+), copper (Cu2+), iron (Fe3+), nickel (Ni2+) and zinc (Zn2+), by natural zeolite (clinoptilolite). These HMIs are combined in single-, dual-, triple-, and multi-component systems. The batch mode experiments consist of a total initial concentration of 10 meq/L normality for all systems, acidified to a pH of 2 by concentrated nitric (HNO3) acid. A zeolite dosage of 4 g per 100 mL of synthetic nitrate salt aqueous solution is applied, for a contact period of 5 to 180 min. Existing kinetic models on HMIs sorption are limited for multi-component system combinations. Therefore, this study conducts kinetic analysis by both reaction and diffusion models, to quantify the sorption process. The study concludes that the process correlates best with the pseudo-second-order (PSO) kinetic model. In the multi- component system combining all five HMIs, the initial sorption rate and theoretical equilibrium capacity are determined as 0.0033 meq/g.min and 0.1159 meq/g, respectively. This provides significant insight into the mechanisms associated with the sorption process, as well as contributing to the assessment of natural zeolite as a sorbent material in its application in industrial wastewater treatment. Keywords: sorption; kinetics; modelling; natural zeolite; heavy metallic ions; ICP-AES

scholarly journals Kinetic modelling of the removal of multiple heavy metallic ions from mine waste by natural zeolite sorption

2021 ◽  
Author(s):  
Amanda L. Ciosek ◽  
Grace K. Luk
Keyword(s):  
Natural Zeolite ◽  
Kinetic Modelling ◽  
Mine Waste ◽  
Sorption Process ◽  
Sorption Kinetics ◽  
Contact Period ◽  
Metallic Ions ◽  
Batch Mode ◽  
Component System ◽  
Multi Component System

This study investigates the sorption of heavy metallic ions (HMIs), specifically lead (Pb2+), copper (Cu2+), iron (Fe3+), nickel (Ni2+) and zinc (Zn2+), by natural zeolite (clinoptilolite). These HMIs are combined in single-, dual-, triple-, and multi-component systems. The batch mode experiments consist of a total initial concentration of 10 meq/L normality for all systems, acidified to a pH of 2 by concentrated nitric (HNO3) acid. A zeolite dosage of 4 g per 100 mL of synthetic nitrate salt aqueous solution is applied, for a contact period of 5 to 180 min. Existing kinetic models on HMIs sorption are limited for multi-component system combinations. Therefore, this study conducts kinetic analysis by both reaction and diffusion models, to quantify the sorption process. The study concludes that the process correlates best with the pseudo-second-order (PSO) kinetic model. In the multi- component system combining all five HMIs, the initial sorption rate and theoretical equilibrium capacity are determined as 0.0033 meq/g.min and 0.1159 meq/g, respectively. This provides significant insight into the mechanisms associated with the sorption process, as well as contributing to the assessment of natural zeolite as a sorbent material in its application in industrial wastewater treatment. Keywords: sorption; kinetics; modelling; natural zeolite; heavy metallic ions; ICP-AES

scholarly journals REMOVAL OF AMMONIUM IONS FROM DIGESTED SLUDGE FUGATE BY USING NATURAL ZEOLITE

2016 ◽  
Vol 24 (3) ◽  
pp. 176-184 ◽  
Author(s):  
Aušra MAŽEIKIENĖ ◽  
Marina VALENTUKEVIčIENĖ
Keyword(s):  
Wastewater Treatment ◽  
Natural Zeolite ◽  
Nitrogen Concentration ◽  
Ammonium Nitrogen ◽  
Ammonium Ion ◽  
Ammonium Ions ◽  
Digested Sludge ◽  
Ion Removal ◽  
Second Stage ◽  
Sludge Digestion

Wastewater treatment loadings with total nitrogen can increased by introducing fugate that is saturated with ammonium ions, generated when dewatering wastewater treatment sludge. In this article the possibility to reduce the concentration of ammonium ions in the fugate by the use of natural zeolite (Transcarpatian clinoptilolite) has been analysed. Lab-scale experiments were carried out with different particle sizes zeolite: 0.8–1.6 mm, 1.6–2.5 mm and 2.5–3.2 mm. At the first stage of the experiments, zeolite particles were mixed with fugate and left to settle until a 99% efficiency of ammonium ion removal was achieved. At the second stage, ammonium ions were removed from the fugate by filtering this liquid through zeolite where the 70–92% efficiency was achieved. Zeolite saturated with ammonium ions possibly can be used in agriculture as nitrogenous fertilizers. Obtained fertilizer grade of zeolite saturated with fugate can also be produced from the high ammonium nitrogen concentration side-streams separated from wastewater flow from sludge digestion processes.

Preliminary Ions Removal from Synthetic Iron Solution by Zeolite and Perlite via XRF Technique

2020 ◽  
Vol 856 ◽  
pp. 211-217
Author(s):  
Kronnika Saetan ◽  
Chaisiri Kitpaosong ◽  
Siwawit Buasuwan ◽  
Rapeephun Dangtungee
Keyword(s):  
Sulphuric Acid ◽  
Natural Zeolite ◽  
Deionized Water ◽  
Freshwater Resources ◽  
X Ray ◽  
Ion Removal ◽  
Adsorption Performance ◽  
Iron Solution ◽  
Reduction Of Iron ◽  
Fluorescence Spectrometer

Ion removal is a long problem on natural freshwater resources. In order to modify the adsorption performance to remove ions from standard iron solution, natural zeolite and natural perlite were treated with deionized water (DI water) as D-zeolite and D-perlite. And, 1M sulphuric acid (H2SO4) was used to treat the adsorbent as H-zeolite and H-perlite. The capability of ion removal was preliminarily investigated from the reduction of iron in solution by X-ray fluorescence spectrometer. The result showed that treatment of adsorbents with DI water was more capability than 1M H2SO4 solution.

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