 | 1877 - 734 páginas
...a discharge into them of crude sewage, which practica is highly objectionable. That, as far as they have been able to ascertain, none of the existing...chemicals in tanks appear to effect much change beyond tho separation of the solide and the clarification of the liquid. That, so far as their examinations... | |
 | International health exhibition, 1884 - 1877 - 448 páginas
...of rivers and streams by sewage, another self-evident conclusion. 5. They find that chemicals do not effect much change beyond the separation of the solids and the clarification of the liquid ; but they acknowlsdge that some processes effect a considerable improvement. 6. They find that the... | |
 | Massachusetts - 1877 - 986 páginas
...polluted by a discharge into them of crude sewage, which practice is highly objectionable. 5. That, as far as we have been able to ascertain, none of the existing modes of treating town-sewage by deposition and by chemicals in tanks appear to effect much change beyond the separation... | |
 | Massachusetts. State Board of Health - 1877 - 802 páginas
...polluted by a discharge into them of crude sewage, which practice is highly objectionable. 5. That, as far as we have been able to ascertain, none of the existing modes of treating town-sewage by deposition and by chemicals in tanks appear to effect much change beyond the separation... | |
 | 1877 - 514 páginas
...needful for a medical journal. The conclusions thus referred to are as follows : — " 5. That, as far as we have been able to ascertain, none of the existing modes of treating town-sewage by deposition and by chemicals in tanks appear to effect much change beyond the separation... | |
 | Royal Society of Arts (Great Britain) - 1878 - 126 páginas
...from the results of their labours ; and conclusions 5, 7, and 8 are as follow : — "5. That as far as we have been able to ascertain none of the existing...however, effects a considerable improvement, and, when carried to its greatest perfection, may in some cases be accepted. " 7. That town sewage can best and... | |
 | Connecticut. State Department of Health - 1879 - 214 páginas
...delay, and that the surfaces and channels of streets, yards, and courts may be preserved clean; that the existing modes of treating town sewage by deposition and by chemicals in tanks does not effect much change beyond the separation of the solids and the clarification of the liquid."... | |
 | Edward Southwick Philbrick - 1881 - 148 páginas
...by a discharge into them of crude sewage, which practice is highly objectionable. " 5. That so far as we have been able to ascertain none of the existing...however, effects a considerable improvement, and when carried to its greatest perfection, may, in some places be accepted. " 6. That so far as our examinations... | |
 | Edmund Alexander Parkes - 1883 - 578 páginas
...polluted by a discharge into them of crude sewage, which practice is highly objectionable. "5. That so far as we have been able to ascertain, none of the existing...separation of the solids and the clarification of the liquids. That the treatment of the sewage in this manner, however, effects a considerable improvement,... | |
 | Edmund Alexander Parkes - 1883 - 580 páginas
...by a discharge into them of crude sewage, which practice is highly objectionable. " 5. That so far as we have been able to ascertain, none of the existing...separation of the solids and the clarification of the liquids. That the treatment of the sewage in this manner, however, effects a considerable improvement,... | |
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That, as far as we have been able to ascertain, none of the existing modes of treating town sewage by deposition and by chemicals in tanks appear to effect much change beyond the separation of the solids and the clarification of the liquid. That the... 
