ON THE TREATMENT AND UTILIZATION OF SEWAGE. 



Seivage-Farm. 



pumped and Effluent Drainage-water from July 1871 to June 1872. 



parts per 100,000. 



159 



Drains. 



A 



B 



C 



D 



B 



c 



D 



B 



C 



D 



B 



C 



D 



B 



C 



D 



{?:=;=: 



Id 



U^ 



ID 



I?:::::;::: 



Id 



Average three drains. 

 Average three drains. 



Average three drains. 

 No samples taken. 

 Average three drains. 

 Average three drains. 

 Average three drains. 

 Average five drains . 

 Average five drains , 



Effluent drainage-water. 



Nitrogen. 



In solution. 



As am- 

 monia. 



Organic. 



O-OI 



©•026 



0"004 



0"027 



o'o83 

 o'ooy 

 o"oi9 



O'lOO* 



0-013 



O'lOO 

 0'020 



O'oog 



0'032 



0-04.9 

 0-019 

 0-046 



0-0I2 



o-oii 

 0-103 

 0-109 

 0-013 



0-045 



o-iii 

 0-165 



0-023 



0-138 



0-055 



0-044 



0-054 



A3 nitrates 



and 



nitrites 



0-19 

 0-31 

 o-i8 

 0-34 

 o-i8 

 0-17 

 0-28 

 0-29 

 0-24 

 0-31 

 0-17 

 0-15 

 0-25 



0-21 

 0-20 



o-zo 



083 

 0-90 

 0-24 

 0-23 



o-ii 

 0-236 



0-15 



0-22 



0-147 



0-I2 



0-03 

 0-30 

 0-09 



2-00 

 0-84 

 049 



trace 



174 



1-12 

 0-24 

 1-22 

 0-63 



i'53 

 1-86 

 nil 

 0-73 

 0-76 



1"20 

 1-12 



1-04 

 0-47 

 0-60 

 303 

 1-72 

 1-27 



i-io 



0-53 

 0-52 

 0-38 

 0-27 



0-05 



1-61 

 1-46 



0-26 

 077 



Total. 



lu sus- 

 pension. 



0-87 

 0-13 

 1-95 



145 



0-42 



158 

 0-88 



171 

 216 

 0-37 

 0-97 



128 J 



1-32 

 0-72 

 0-82 



3'i7 

 2 56 

 2-i8 

 1-36 

 0-85 

 0-64 

 0-65 

 0-51 



0-266 



1-78 

 1-70 

 1-83 

 0-60 

 0-91 



Total in 

 solution 

 and sus- 

 pension. 



Average 



1-12 



1-27 



1-39 



1-17 



1-27 



0-95 



2-67 



0-95 



0-65 

 0-51 



0-266 



1-78 

 1-70 

 1-83 

 0-60 

 0-91 



* Strong smell of sewage. 



