ON THE DISPOSxlL OF SEWAGE. 



By 



The Hon. W. F. TAYLOR, M.L.C.. 



M.D. : M.R.C.S.E.: Dip. Public Health; R.C.P. iind S., England. 



\_l!e(itl het'i'ir fitr lioii((l Snrictii nf (Jurmslaml, l~tJi Juiir, lS!)8.j 



Where^tcr people are collected together in eomniunities, the 

 necessity for dealing- with refuse matters inseparable from such, 

 becomes a question on the proper solution of which depends 

 the health and consequent well-being of each individual. The 

 liquid refuse is usuall}' conveyed away by means of drains and 

 sewers — the more solid matters being removed either by water 

 carriage or by some other means. The removal by water 

 carriage may be effected by either a combined or separate 

 gystem of sewage — the former making provision for the disposal 

 of the rain water as well as the refuse ; tlie latter dealing with 

 the refuse only — most, if not all; of the rain water being exchu|ed 

 from the sewers and drains. 



The Separate System deals with the water supply to tlie 

 inhabitants, which is contaminated by domestic use and trade 

 products, and the amount of water used for flushing the drains 

 and sewers. As the quantity of liquid to be dealt with does not 

 vary to any great extent, from time to time, provision can he 

 made for its disposal at the outfall with a tolerable degree of 

 accuracy. This is a matter of very great importance m every 

 instance ; more especially in cases when it is necessary to purify 

 the sewage by any of the well-known means at present in use. 



. In the Combined System, where the rain water is mixed 

 with the sewage, the quantity of liquid flowing in the conduits 



