fl 
el a 
PROCEEDINGS OF SECTION H. 
687 
indicates that the effluent is undergoing the natural process of purifica- 
tion by oxidation, and may be safely discharged into rivers without 
causing a nuisance. 
(Initd.) W. M. H., 
Government Analyst. 
Government Laboratory, 
Sydney, 16th September, 1889. 
Analysis of a sample of water received from Sewerage Farm, Botany, 
A-9-89. Labelled Effluent marked “ B.” 
| 
| Appearance in two-foot tube ... = 
| Odour on heating to 100 deg. Fahr. ... 
| Chlorine as Chlorides 
| Phosphoric Acid in Phosphates 
| Nitrogen in Nitrates and Nitrites 
| Do. equivalent in Nitric Acid ... 
Do. existing as free Ammonia ... ; 
Organic Nitrogen, or Albuminoid Ammonia.. 
Oxygen absorbed in 15 min. at 80 deg. Fahr. 
| Do. do. 4. hours do. 
| Hardness in degrees, Clark’s scale, before 
i boiling : ae ; ie 
| Hardness in degrees, “Clark’s scale, after 
| boiling . , be 
Poisonous eaiaa: , 
| Total solid residue, dried at 220 deg. Fahr. . 
Results expressed in 
Grains per 
gallon. 
Parts per 
100,000. 
ne 
48°0 
General observations on the character of the water: 
The analysis 
indicates that the effluent is undergoing the natural process of purifica- 
tion by oxidation, and may be safely discharged into rivers without 
causing a nuisance. 
5.—HEALTH LEGISLATION 
By A. P. AkEHURST. 
6.—DUTIES 
By C. J. Eassie. 
(Initd.) W. M. H., 
Government Analyst. 
EN VICTORIA: 
OF SANITARY INSPECTORS. 
