Effects of ultrasound on zeolite A synthesis

Material prepared from drinking waterworks sludge as adsorbent for ammonium removal from wastewater

“…It was mainly composed of extraction and synthesis process with the assistance of ultrasonic. Ultrasound has proven to be a powerful tool for enhancing chemical processes such as solid-liquid extraction [14] and material synthesis [15,16]. In our experiment, an acid and alkali treatment was performed in an ultrasonic extraction apparatus for enhancing the extraction efficiency of aluminum and silicon from DWS [4].…”

Effect of sonication process on natural zeolite at ferric chloride hexahydrate solution

“…Purification of Natural Zeolite by using ultrasonic technique is also applied by researchers to remove and separate impurities materials, this technique is believed to deliver a faster process and result [5]. To remove impurities, sieved natural zeolite were washed and stirred with distillate water, washing process was conducted four times with two hours long for each sequence [7]. Natural drying was performed prior to initial characterization to find out zeolite properties and involved phase, a natural zeolite sample coding is ZA (natural zeolite).…”

“…Synthesis of ZA (66.7) FeCl 3 .6H 2 O (33.3) treated by high intensity ultrasonic liquid processor VCX750 at 20 kHz [8], 40 Amp for 40 min and sample code ZAM1, 80 min with sample code ZAM2 and 120 min with sample code ZAM3. Slurry product of sonification was precipitated and followed by Microwave heating of remain solid at temperature of 90 o C for 30 min [7]. Particle size analysis was performed with dispersing 0.025 gr sample into aquades and evaluated with non invasive back scatter (NIBS) method.…”

Synthesis of zeolite Na-P from coal fly ash by thermo-sonochemical treatment

“…Ultrasound (UST) is an alternative energy source, which is considered to be safer compared to microwave because of its wave frequencies that are lower than the microwave [41]. UST assisted synthesis is a straightforward and simple technique that has been used by our research group to manufacture different zeolites and zeolite-like porous materials [42][43][44].…”