The book The Bacteriological Examination of Food And Water was written by author William George Savage Here you can read free online of The Bacteriological Examination of Food And Water book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Bacteriological Examination of Food And Water a good or bad book?
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72 SOIL AND SEWAGE raw sewage. The different kinds of bacteria and their relative abundance appear to be very much the same in the effluents as in the crude sewage. Thus, as regards undesirable bacteria, the effluents frequently contain nearly as many B. coli, proteus- like germs, spores of B. enteritidis sporogenes, and streptococci, as crude sewage. In no case, seemingly, has the reduction of these objectionable bacteria been so marked as to be very material from the point of view of the epid...emiologist. No definite proof has been furnished that the effluents from bacteria beds are conspicuously more safe in this sense in their possible relation to disease than is crude sewage. Indeed, all the avail- able evidence tends to show that they must be regarded as nearly, if not quite, as dangerous to health as raw sewage.... The inoculation of animals with the effluents from bacterial beds seems to show that they are nearly as pathogenic as crude sewage." Judged from the bacteriological standpoint the only process which yields a markedly purified effluent is filtration of the sewage through sand.
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