tailieunhanh - Microbiological Aspects of BIOFILMS and DRINKING WATER - Chapter 7

Sự hiện diện của màng sinh học trong nước uống đã được rõ ràng từ năm 1930 với báo cáo vấn đề về sự tồn tại của tái sinh vi khuẩn coli . 1,2 Một 7 năm trôi qua cho đến khi nghiên cứu xác nhận rằng vi khuẩn có khả năng nhân trên các bức tường của đường ống phân phối nước. 3 Tuy nhiên, phải mất 42 năm đối với sự hiện diện của màng sinh học liên quan với nước uống để tạo ra mối quan tâm khi liên quan với nốt ống và encrustations 4 cho thấy một số hình thức y tế công cộng vấn đề. Thậm chí ngày. | 7 Biofilm Formation in Potable Water CONTENTS Adhesion and Biofilms in Potable Microbiology of Potable Water and Relevance of Biofilms in Potable Biofilm Structure in Potable Factors Which Affect the Accumulation of Biofilms in Potable Water Nutrient Availability . 93 Disinfection. 94 Temperature . 94 Substratum Coliform Regrowth in Potable Problems of Studying Potable Water Biofilms in Experimental INTRODUCTION The presence of biofilms in potable water has been evident since 1930 with the reported problem of the existence of the regrowth of Bacterium 2 Another 7 years passed until research confirmed that microbes were capable of multiplication on the walls of water distribution However it took another 42 years for the presence of biofilms associated with potable water to generate concerns when associated with pipe tubercles and encrustations4 indicating some form of public health problem. Even today the presence of biofilms within potable water pipes are being observed by a number of researchers using more modern methods particularly the scanning electron Despite accumulating evidence confirming the presence of biofilms in potable water it is only recently that any health implications associated with their growth are being documented particularly as they are known to provide a safe haven for the growth of pathogens opportunistic pathogens viruses and The study of biofilm development in potable water is of great interest to drinking water companies in relation to the effects they have on both the aesthetics and the public s health. In terms of the aesthetics it is widely acknowledged that potable water can be affected by organisms such as fungi and Actinomycetes which are well 85 2000 by CRC Press LLC 86 .