Search Results

You are looking at 1 - 10 of 145 items :

  • "Waste air" x
Clear All

Abstract

This study was aimed at testing the possibility of using a biotrickling filter for the treatment of waste air resulting from animal farming. For this purpose, a laboratory and pilot biotrickling filter with a moving bed were constructed. In the first case, the removal of ammonia emissions from waste air, by means of ammonia nitrogen utilization by present micro-organisms under laboratory conditions, was tested. The mass load of the biotrickling filter was gradually increased by slowly increasing the ammonia concentration. In the second case, the pilot biotrickling filter with a moving bed was installed inside a pig farm and it was tested under real operation conditions. In the first case, the highest value of the laboratory biotrickling filter’s elimination capacity was 6.2 gNH3 m−3 of filling h−1. The elimination capacity of the pilot filter was 1.6 gNH3 m−3 of filling h−1. The source of carbon for the present micro-organisms was a 1% sucrose solution, which simulated waste water with high content of CODCR. [

Abstract

Segregation of shredded waste is one of the technologies of waste management, along with issues related to manual segregation, while nowadays it starts to be associated with pneumatic classification. This paper discusses the use of an air classifier and image analysis techniques for the purposes of evaluation of segregation of shredded waste. This type of air classifier plays an important role due to the efficiency of the device and the characteristics of segregation. The authors report the results of research into image analysis of segregation of shredded waste on the basis of the use of image analysis.

-thermal plasma and heterogeneous catalysis, i.e. plasma- catalysis. This air purification technique has been investigated over the last decade in an effort to overcome the disadvantages of non-thermal plasma treatment of waste air containing volatile organic compounds (VOCs). Some examples of different plasma technologies used for plasma-catalysis are given. These include the dielectric barrier discharge, the pulsed corona discharge and the atmospheric pressure glow discharge. In a plasma-catalytic hybrid system the catalyst can either be located in the discharge region or

, while getting the energy, we usually impact our environment in some negative way. All energy sources affect the environment in different levels. Some non- renewable energy sources, such as coal, have a greater impact than others. Fortunately, the energy industries have become gradually aware of the importance of envi- ronmental protection and are working to reduce its long- term negative effects. This special issue tends to report on critical issues of the environment, including remediation and treatment of solid or aqueous wastes, air pollution, sustainable energy

Pure & App!. Chem., Vol. 58, No. 12, pp. 1663—1 668, 1986. Printed in Great Britain. © 1986 IUPAC Development of synthetic membranes for gas and vapor separation Heiner Strathman, Carl-Martin Bell and Klaus Kinnnerle Fraunhofer4nstitut fUr Grenzf1chen- und Bioverfahrenstechnik, 7000 Stuttgart 80, F.R.G. Abstract - The development of a synthetic membrane and a suitable module for the separation of organic vapors from waste air streams is described. Parameters determining the selectivity and permeability of a membrane in gas separation are discussed and criteria

regulations, risk assessment and accountability, green engineering of waste, air and marine pollution, and dangerous household chemicals. Chemistry is an important theme throughout the book, as most of the waste created in our society has a major chemical component. Waste is not new; it has been a problem for thousands of years. However, with the industrial and petrochemical revolutions, rapid growth in the world’s population, and greater consumerism, waste concerns have grown exponentially. Generally, engineers and scientists have done much to address previous problems

. Kaiser und U. Rechentin, Meßeinrichtun- gen für Hochtemperaturreaktoren R 65 Measurement devices for high temperature reac- tors H. Jagersberger und L. Kuhn, Abluft- und Ab- wasseraktivitätsüberwachung R 71 Waste-air and -water activity control H. Stute, Reaktorschutz R 73 Reactor protection H. Hofmann, Planung und Bau meßtechnischer Anlagen R81 Flanning and construction of measurement en- gineering devices U. Heining, Wartenausführung und Gefahren- meldeanlage R 88 Realization of command equipment and danger registration device Gerätetechnik - Termine R 90

produces particles in the range of about 0.1 μαι to 5 μιη. * on leave from the Institute for High Energy Physics, Beijing. 2 YA NAI-QI, D. T. JOST, U. BALTENSPERGER and H. W. GÄGGELER 1 2 3 B e a m line To chemi s t r y l aboratory Waste air to venti lat ion Fig. 1. Schematic of the gas-jet setup at the SAPHIR reactor. 1) chopper, 2) target, 3) target chamber, 4) protective outer tube, 5) transportation capillary, 6) target chamber housing, 7) target chamber relieve valve, 8) activity monitor of waste air with 9) charcoal trap, 10) pressure gauge, 11) gas

-99. Cox H.H.J., Deshusses M.A, "Biological waste air treatment in biotrickling filters", Curr. Opin. Biotechnol., 1998, 9, 256-262. Deng L., Chen H., Chen Z., Pu X., Song L, "Process of simultaneous hydrogen sulfide removal from biogas and nitrogen removal from swine wastewater", Bioresour. Technol., 2009, 100, 5600-5608. Deshusses M.A., “Biological waste air treatment in biofilters”, Curr. Opin. Biotechnol, 1997, 8, 335-339. Diks R.M.M. and S.P.P. Ottengraf, “Verification studies of a simplified model for the removal of dichloromethane from waste gases using

organic vapors from waste-air streams using a polymeric membrane [3] and the production of polymer nanocomposites and films using solution casting methods [4, 5]. Moreover, the phase behavior of polymer solvent systems is important in polymer synthesis, since polymers are produced in or via solutions [6]. In order to design such processes, the successful description of the VLE behavior in solvent-polymer systems is required. In recent years, publications on the VLE for polymer/solvent systems have been increased; however, the quantity of researches on this subject is