How water is purified in water treatment plants Pre-treatment 1. Pumping and containment – The majority of water must be pumped from its source or directed into pipes or holding tanks. To avoid adding contaminants to the water‚ this physical infrastructure must be made from appropriate materials and constructed so that accidental contamination does not occur. 2. Screening (see also screen filter) – The first step in purifying surface water is to remove large debris such as sticks‚ leaves
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Cell Culture Bioreactors Basic Types of Bioreactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Stirred Tank (Well Mixed) vs. Tubular Reactor (Plug Flow) . . . . . . . . . . . . . . . . . 3 Segregated Bioreactors (Dead Zone Present) Compartmentalized Bioreactors . . 4 Implication When Growth or Reaction Occurs in the Reactor . . . . . . . . . . . . . . . 4 Homogenous Reactor vs. Heterogeneous
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UPW System Introduction Purpose of this training Introduction of units • • • Theory Application/Function in DI System Operation After this training: • • • Know the theory of main units Understand the function of units in DI system Understand the possible causes of abnormal performance Daily Operation To take care of the system • • • • To watch To listen To smell To feel Why??? • • • • To find out problem on time‚ minimize loss To prevent
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Electrodeposition Coating Process for Automobile Bodies* By Yoshiaki 0YABU‚** Nobuo FURUNO‚*** Yoji HIRASAWA*** and Hiroshi OMORI **** Synopsis The earlier electrodeposition processwas mainlypursuitedfor the quality control in terms of mass production. However‚ the coating efficiency was picked up to be a serial problemfrom a standpoint of the harmony between natural circumstancesand human’s living-life conditions and the recovery usage of the paint was earnestlysearched. This trend
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Evaluation and Characterization of Seawater RO Membrane Fouling Dr. Sambhu Saran Mitra – Water System Manager‚ Antony Rajan Thomas – Chemist and Guo Tian Gang – Water Engineer‚ Sembcorp Gulf O&M Co Ltd‚ Fujairah Water & Power Plant‚ Fujairah‚ PO Box 5024‚ UAE. Email: sambhu.mitra@sembcorp.com Mobile: +971503994191‚ ABSTRACT Fresh water shortage is a growing problem facing the world‚ especially in the Middle East. With the rapid increase in fuel price‚ seawater reverse osmosis (SWRO) is increasingly
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c IB DIPLOMA PROGRAMME PROGRAMME DU DIPLÔME DU BI PROGRAMA DEL DIPLOMA DEL BI SPEC/4/BIOLO/HPM/ENG/TZ0/XX/M MARKSCHEME SPECIMEN PAPER BIOLOGY Higher Level Paper 1 2 pages –2– SPEC/4/BIOLO/HPM/ENG/TZ0/XX/M 1. B 16. C 31. D 46. – 2. C 17. B 32. D 47. – 3. D 18. B 33. A 48. – 4. D 19. B 34. D 49. – 5. D 20. B 35. C 50. – 6. D 21. B 36. D 51. – 7. B 22. B 37. B 52. – 8. B 23. D 38. D 53. – 9. A 24. C 39. A 54. – 10. D
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Cell structure and organization • Chloroplasts o Site of photosynthesis where light energy is absorbed o Consist of grana which are stacked up to increase surface area for absorption of light o Only present in plant cells • Cell membrane (plasma membrane) o Lipid bilayer that surrounds the cell‚ interspersed with protein molecule o Presence of temporary pores o Selectively permeable Controls movement of substances o Diffusion‚ osmosis and active transport can therefore take place o Prevent outflowing
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International Journal of Environment and Bioenergy‚ 2013‚ 7(2): 91-107 International Journal of Environment and Bioenergy ISSN: 2165-8951 Florida‚ USA Journal homepage: www.ModernScientificPress.com/Journals/IJEE.aspx Article Biosorption of Toxic Heavy Metals by Unmodified Marine Red Alga (Kappaphycus alvarezii): Kinetics and Isotherm Studies Sohail Rafiq 1‚ Majid K.M. Ali 2‚ Mahyar Sakari 1‚ Jumat Sulaiman 2‚ Suhaimi M. Yasir 3‚ * 1 Water Research Unit (WRU)‚ School of Science and Technology‚
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PHYTOCHEMICALS AS NUTRACEUTICALS 08/08/2006 12:22 AM Phytochemicals as Nutraceuticals by Ben Best CONTENTS: LINKS TO SECTIONS BY TOPIC I. Introductory Remarks II . Terpenoids = Isoprenoids A . Carotenoid Terpenoids 1. Lycopene 2. Beta-Carotene 3. Alpha-Carotene 4. Lutein 5. Zeaxanthin 6. Astaxanthin B . Non-Carotenoid Terpeniods 1. Perillyl Alcohol 2. Saponins 3. Terpeneol 4. Terpene Limonoids III. Polyphenolics A . Flavonoid Polyphenolics 1. Anthocyanins 2. Catechins
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POLLUTION Pollution is the introduction of contaminants into the natural environment that causes adverse change. Pollution can take the form of chemical substances or energy‚ such as noise‚ heat or light. Pollutants‚ the components of pollution‚ can be either foreign substances/energies or naturally occurring contaminants. Pollution is often classed as point source or nonpoint source pollution. Forms of pollution The major forms of pollution are listed below along with the particular contaminant
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