A. vaziri
Department of chemical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
[ 1 ] - Optimization of Synthesis of Expandable Polystyrene by Multi-Stage Initiator Dosing
Suspension polymerization process is commonly used to produce expandable polystyrene. In the conventional method for producing this polymer, two different initiators are added to the process at two different temperature levels. In the industrial scale, this process is time consuming and difficult to control. A new method (Multi-Stage Initiator Dosing, MID) is proposed, in which, the initiator i...
[ 2 ] - Effect of temperature, heating rate and zeolite-based catalysts on the pyrolysis of high impact polystyrene (HIPS) waste to produce fuel-like products
Pyrolysis of high impact polystyrene (HIPS) waste has been investigated under different process parameters, such as temperature, heating rate and types of zeolitic catalysts to produce valuable liquid products. Liquid, gas and coke as products of pyrolysis and aromatic, naphthene, olefin and paraffin as liquid components were obtained and their molecular weight distributions were studied with c...
[ 3 ] - جذب سطحی ماده رنگزای ایندیگو با استفاده از نانو الیاف مغناطیسی کیتوسان- اسید ایتاکونیک و بررسی سینتیک و ایزوترم جذب آن
امروزه تصفیه پساب صنعتی، ازجمله پساب نساجی، بسیار حائز اهمیت است. کاربرد نانو مواد در حذف فاضلاب‌های رنگی، در سال‌های اخیر توجه گسترده‌ای یافته است. یکی از این آلاینده‌ها با طیف وسیع استفاده در صنایع، ماده رنگزای ایندیگو می‌باشد. در این پژوهش از نانو الیاف مغناطیسی کیتوسان- اسید ایتاکونیک برای تصفیه پساب ماده رنگزای ایندیگو بهوسیله روش جذب سطحی استفاده شد. پس از طراحی آزم...
[ 4 ] - Synthesis of chitosan-zirconium magnetic nanofibers and its application for arsenic adsorption from wastewater: Kinetics and isotherms studies
Background and Objective: Arsenic has long been considered as a heavy metal and toxic pollutant due to its potential to harm the human health and the environment. Adsorption is one of the mechanisms for arsenic removal from wastewater. Therefore, the purpose of this research was to investigate the feasibility of synthesized chitosan-zirconium magnetic nano fiber on arsenic adsorption from wast...