In small-pore zeolite catalysts, where the size of the pores is limited by eight-ring windows, aromatic hydrocarbon pool molecules that are formed inside the zeolite during the Methanol-to-Olefins (MTO) process cannot exit the pores and are retained inside the catalyst. Hydrocarbon species whose size is comparable to the size of the zeolite cage can cause the zeolite lattice to expand during th...

A detailed and systematic polarized confocal fluorescence microscopy investigation is presented on three batches of large coffin-shaped ZSM-5 crystals (i.e., parent, steamed at 500 °C, and steamed at 700 °C). In total, six laser lines of different wavelength in the visible region are employed on two crystal positions and three orientations with respect to the polarization plane of the excitatio...

1. What are toxins? p3 2. What are the most common sources of toxins? p4 3. Is it true that even food is a common source of dangerous toxins? p5 4. Why are toxins a threat to my health? p5 5. Are children more susceptible to dangerous toxins than adults? p6 6. How do prescription drugs and other medical treatments contribute to toxic overload? p6 7. What is toxic overload and what are its sympt...

In recent years, natural substances such as zeolite have been used to absorb heavy metals in soil in an attempt to decrease their availability to plants. Compared to other techniques, the use of zeolite is fast, clean, and inexpensive. This research was carried out to investigate the effects of an Iranian natural zeolite (clinoptilolite) on stabilizing Cd-contaminated soil treated with 0.01 M C...

Two experiments were conducted to investigate the effects of sodium sulfate water and the efficacy of nonnutritive feed additives in nursery pig diets. In Exp. 1, 320 barrows (5.4 ± 0.1 kg BW and 21 d of age) were allotted to 1 of 8 treatments for 24 d in a 2 × 4 factorial with 2 levels of sodium sulfate water (control or 3,000 mg sodium sulfate/L added), and 4 dietary zeolite (clinoptilolite) ...

One way to reduce phosphate levels in water is by adsorption. Adsorption considered as the best wastewater treatment method because main material, namely adsorbent, abundant and easy use. This research was conducted determine ability of zeolite combined with bentonite adsorb water, optimum time, pattern adsorption isotherms capacity. The studies included characterization adsorbent well its appl...