|
|
[ Up ]
[ Desalination ]
[ Emergency Water ]
[ Food Processing ]
[ Laundry ]
[ Metal Plating ]
[ Potable Water ]
[ Radioactivity ]
[ Raw Sewage ] [ Steam Cleaners ]
Raw Sewage
Electrocoagulation has proven effective in treating sewage water, sewage sludge concentrations, and sewage sludge metal fixation sufficiently
to enable land application.
|
Municipal Sewage
From POTW Discharge Water
|
|
(002-156)
|
Raw
|
Treated
|
% Removal
|
|
BOD (mg/l)
|
1,050
|
14
|
99%+
|
|
TSS (mg/l)
|
4,620
|
7
|
99%+
|
|
Bacteria (cfu)
|
110,000,000
|
2,700
|
99%+
|
|
|
|
|
|
|
(002-179)
|
Raw
|
Treated
|
% Removal
|
|
BOD (mg/l)
|
79
|
0
|
99%+
|
|
TSS (mg/l)
|
12
|
6
|
99%+
|
|
|
|
|
|
|
(002-187)
|
Raw
|
Treated
|
% Removal
|
|
BOD (mg/l)
|
500
|
19
|
96%
|
|
TSS (mg/l)
|
3,245
|
14
|
99%+
|
|
|
|
|
|
|
(006-646)
|
Raw
|
Treated
|
% Removal
|
|
BOD (mg/l)
|
3,345
|
510
|
84%
|
|
TSS (mg/l)
|
16,500
|
165
|
99%
|
|
Volatile Solids
|
12,300
|
126
|
99%
|
|
TSS (mg/l)
|
12
|
6
|
50%
|
|
|
|
|
|
|
Vanderbilt Study
|
Raw
|
Treated
|
% Removal
|
|
COD
|
490
|
26
|
94.7%
|
|
Total Solids
|
602
|
401
|
43.4%
|
|
Suspended Solids
|
73
|
7
|
90.4%
|
|
Settleable Solids
|
21
|
5
|
76.2%
|
|
Total Hardness
|
127
|
11
|
91.3%
|
|
Alkalinity
|
267
|
11
|
95.8%
|
|
pH
|
6.88
|
7.02
|
-
|
|
IOD
|
0.98
|
<0.1
|
89.8%
|
|
BOD
|
220
|
9
|
95.9%
|
|
Coliform
|
318,000/ml
|
0
|
99%+
|
|
Phosphates
|
38
|
0
|
99%+
|
After electrocoagulation, treated domestic sewage water
will, in most cases,"......be better than the raw water from which it had
originated." 7
(7) United States Department of Agriculture (USDA), Agricultural
Research Service: 12/18/95
|
