Άρθρα και δημοσιεύσεις για τις εφαρμογές του ζεόλιθου και του διατομίτη

Study on the Effect of Adding Zeolite and other Bio-Adsorbance in Enhancing the Quality of the Palm Based Vermicompost Abstract This research work deals with the production of vermicompost from empty fruit bunch (EFB) blended with cow dung using an epigeic earthworm known as Eudrilus Eugeniae. The vermicomposting mixture was carried out in a humid environment with moisture content between 70% to 80% and a pH of between 6 to 8. Natural zeolite, such as clinoptilolite and charcoal were mixed with vermicompost at different ratios and prior to being pelletized. The highest cation exchange capacity (CEC) was observed at 10% ... Διαβάστε περισσότερα

Biogas Purification Using Natural Zeolite and NaOH Abstract Biogas purification is the most important process to increase the quality of biogas. This research was introduced a continuous system of biogas purification from CO2 impurity using zeolite and NaOH solution. The granular zeolites were varied from 1 to 5 layers on solid purifier. The NaOH solution was varied from 10% to 50 % based on concentration. Contact time of biogas with zeolite and NaOH solution were observed on interval of 15 minutes. The results showed that the ability of NaOH solution to absorb of CO2 is faster than zeolite. On the initial minutes, ... Διαβάστε περισσότερα

The Study on Zeolite Column Adsorption of Groundwater Nitrate Abstract By zeolite column adsorption test process of nitrate pollution of groundwater, the research of three different inlet velocity of nitrate nitrogen removal, and the roles of nitrite nitrogen accumulation, zeolite adsorption of ammonia nitrogen and the influence of pH value changes, the results show that when the flow rate of 70 mL/h, the nitrate nitrogen concentration in the reaction column rising velocity under concentration less than before, but nitrate nitrogen concentration in the zeolite column has remained at about 3 mg/L, removal rate has remained at more than 95%; Nitrite ... Διαβάστε περισσότερα

Preparation of Compound Clinoptilolite Filter Material and Performance of Ammonia Nitrogen Removal Abstract This experiment use natural clinoptilolite powder as main materials to prepare the large specific surface and high porosity spherical compound filter material by adding adhesive and pore-forming agent etc.This compound filter material has favourable effect when treating sanitary wastewater. The static adsorption test showed that the absorption ratio of ammonia-nitrogen is 58.5% when the compound filter material dosage was 100g/L, NH4+-N concentration was 100mg/L and the contact time was 40min.The cure fitting of the adsorption isotherm of NH4+-N on the compound filter material could be well described ... Διαβάστε περισσότερα

Abstract Warm asphalt mixture develops rapidly throughout the world in recent years. Zeolite based warm mix is one of the warm mixtures. In this paper, seven kinds of zeolites including six natural zeolites and one synthetic zeolite are selected. As warm mix additives, their physical properties such as density, water content and pore arrangements are tested respectively. To evaluate the compacting properties of zeolites based warm asphalt mixture, AC-20 mixture is designed and compaction is conducted. It shows that zeolites can reduce the compacting temperature for both Marshall and gyratory compaction. Temperature is the main factors which influence the compaction ... Διαβάστε περισσότερα

University of Minnesota developed a method to improve biofuel production University of Minnesota developed a method to improve biofuel production American scientists developed computer screening method that identifies materials able to improve biofuel production process. Research team from the University of Minnesota in cooperation with Argonne National Laboratory led a number of researches that would improve biofuel production efficiency. Scientists offer to use alumino silicate and zeolite as a molecular sieve either to filter chemical components or to be a catalyst of chemical reactions. Now more than 200 of various zeolites are available. The main aim of this research is ... Διαβάστε περισσότερα

The water protection – Nikos Lygeros Translated from the Greek by Athena Kehagias Since there is at last, a formal consultation regarding the water protection from agricultural fertilizers, the role of the zeolite must be promoted in this process. More specifically, it regards the approval of: Code of Good Agricultural Practice for Protection of Waters from nitrates of agricultural sources and livestock activity, which is exactly the field of action of zeolite, since it’s already used in deceleration fertilizers. And the reason is simple, since the zeolite is able to absorb ammonia and release it slowly. Consequently, it is a ... Διαβάστε περισσότερα

Η προστασία των νερών – Νίκος Λυγερός Αφού υπάρχει πια επίσημη διαβούλευση για την προστασία των νερών από τα γεωργικά λιπάσματα, πρέπει να αναδειχθεί και ο ρόλος του ζεόλιθου σε αυτή τη διαδικασία. Πιο συγκεκριμένα πρόκειται για την έγκριση Κώδικα Ορθών Γεωργικών Πρακτικών για την προστασία των Νερών από τη Νιτρορύπανση Γεωργικής Προέλευσης αλλά και κτηνοτροφικής δραστηριότητας, αφού είναι ακριβώς το πλαίσιο της δράσης του ζεόλιθου που χρησιμοποιείται ήδη στα λιπάσματα επιβραδύνσεως. Και ο λόγος είναι απλός αφού ο ζεόλιθος είναι ικανός ν’ απορροφήσει την αμμωνία και να την αποδεσμεύσει αργά. Κατά συνέπεια είναι ένα υλικό που μπορεί να χρησιμοποιηθεί ... Διαβάστε περισσότερα

Removal of Pb(II) from Aqueous Solutions by Zeolites, Porcelanite and Sands: Correlation of Morphology and Chemical Composition to Batch Removal Efficiency Author(s) Fawwaz Jumean1*, Lucia Pappalardo1, Hani Khoury2 Affiliation(s) 1Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates. 2Department of Geology, The University of Jordan, Amman, Jordan. ABSTRACT Chemical compositions of natural zeolites, porcelanite (opal-CT) and local sands were determined by X-ray fluorescence (XRF) and correlated with their Pb(II) removal efficiencies. Zeolites and porcelanite were from the Mikawer, Aritain and Hannon areas in Jordan. Sands (white, red and yellow) were from the United Arab Emirates (UAE). ... Διαβάστε περισσότερα

Εμπορική Μαθητική Έκθεση 2015 – Zeosoap Therapy Ήμασταν εκεί, στην Εμπορική Μαθητική Έκθεση 2015 που οργανώθηκε από το Σωματείο Επιχειρηματικότητας Νέων | Junior Achievement Greece, με την Bee Pretty του Λυκείου Γλαύκης Ξάνθης & την Zeopsoap Therapy του Λυκείου Διδυμοτείχου. Η έκθεση που οργανώνεται για 9η χρονιά από το ΣΕΝ |JA Greece, πραγματοποιήθηκε στις 6/3/2015, στο εμπορικό κέντρο Mediterranean Cosmos, στη Θεσσαλονίκη και συμμετείχαν 29 εικονικές επιχειρήσεις από σχολεία της Βόρεια Ελλάδας. Φέτος δύο σχολεία της Θράκης συμμετέχουν στο πρόγραμμα “εικονική επιχείρηση“, ένα παγκόσμιο εκπαιδευτικό πρόγραμμα για μαθητές λυκείου, η Β’ τάξη του Γενικού Λυκείου Γλαύκης Ξάνθης με την εικονική επιχείρηση Bee Pretty και η Α’ ... Διαβάστε περισσότερα

Proton Adsorption Selectivity of Zeolites in Aqueous Media: Effect of Exchangeable Cation Species of Zeolites Moses Wazingwa Munthali *, Erni Johan and Naoto Matsue Department of Life Environmental Conservation, Faculty of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama 790-8566, Japan; E-Mails: Johan@agr.ehime-u.ac.jp (E.J.); matsue@agr.ehime-u.ac.jp (N.M.) Abstract: The saturation of negative charges of zeolites by specific cations to modify their physicochemical and catalytic properties has broadened the applications of zeolites. The adsorption behavior of H+ to Li+, Na+, K+, Rb+ and Cs+-saturated Linde-type A, Na-P1, mordenite, X type and Y type zeolites was evaluated at different pH-pM, where pH-pM is equal to ... Διαβάστε περισσότερα

Ο ζεόλιθος: η καλλιέργεια της καινοτομίας – Νίκος Λυγερός Διάλεξη του Νίκου Λυγερού με θέμα: “Ο ζεόλιθος: η καλλιέργεια της καινοτομίας”. Λεβίδι-Φιλοτεχνικός Όμιλος.