tailieunhanh - Adsorption process on fixed bed column in rich organic wastewater treatmentexperimental studies and numerical simulation

Wastewater of Minhkhai Textile Company is the sample used in experiment study. According to isotherm function, textile wastewater is poorly adsorbed into SWW210&220. Kinetic data also show that diffusion step of textile wastewater is very slow (DS "' *10- 13 m2 /s). With textile wastewater, NADPF model can be used to simulate adsorption process. | Vietnam Journal of Mechanics, VAST, Vol. 28, No. 1 (2006), pp. 28 - 34 ADSORPTION PROCESS ON FIXED BED COLUMN IN RICH ORGANIC WASTEWATER TREATMENTEXPERIMENTAL STUDIES AND NUMERICAL SIMULATION NGUYEN HONG KHA NH, NGUYEN VIET HOANG Institute of Environmental Technology Vietnamese Academy of Science and Technology Abstract. None axially dispersed plug flow model (NADPF) was applied to simulate adsorption process on fixed bed column. To determine model input parameters and verify the model, isotherm curve, solid diffusion coefficient (Ds) and breakthrough curve have been determined from experiment. Activated carbon SWW 210&220 was selected as the main adsorbent for research. Wastewater of Minhkhai Textile Company is the sample used in experiment study. According to isotherm function, textile wastewater is poorly adsorbed into SWW210&220. Kinetic data also show that diffusion step of textile wastewater is very slow (DS "' *10- 13 m 2 /s). With textile wastewater, NADPF model can be used to simulate adsorption process. Keywords: adsorption, simulation, activated carbon, textile wastewater. 1. INTRODUCTION Adsorption is one of the most important methods used to treat the liquid pollutants, especially the non-biodegradable substances (ex. textile wastewater) [5]. Although, the effect of this method is quite high and it may be applied in many cases in that the conventional methods are difficult to be used [6], its application is still limited. An important reason is high price of the adsorbents. Many researchers have focused on the study for finding adsorbents of low price, but these studies are still in laboratory scale. An another approach is to optimize the design and operation of adsorption process. In the framework of fundamental research program in the field of Mechanics, in the Institute of Environmental Technology, Vietnamese Academy of Science and Technology, series of experiment studies and numerical simulation work on a rich organic wastewater by .

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.