Characterization of Wastewaters and Sludges
Substance
Formula
Carbon
TOD
.
BOD
BODw
%
g ~/ g substance
Methane
CH.t
75
4
-
-
Ethane
C2H6
80
3.74
-
-
Hexane
C~14
84
3.54
-
-
Ethylene
C2H4
86
3.43
-
-
Acethylene
C2H2
92
3.07
-
-
Trichloromethane
CHCb
10
0.36
-
-
Tetrachloromethane CC14
8
0.21
-
-
Ehtyl ether
C..HwO
65
2.59
-
-
Acetone
CJH60
62
2.21
0.54
-
Formic acid
CH202
26
0.35
0.09
0.25
Acetic acid
C2H402
40
1.07
0.70
0.90
Propionic acid
C3Hn02
49
1.52
1.30
1.40
Butyric acid
C..Hs02
55
1.82
1.15
1.45
Valerie acid
CsHw02
59
2.04
1.40
1.90
Palmitic acid
C1nfu202
75
2.88
1.68
1.84
Stearic acid
C1slL1602
76
2.93
1.13
1.59
Oxalic acid
C2H204
27
0.18
0.10
0.12
Succinic acid
C4Hn04
41
0.95
0.64
0.84
Maleic acid
C..H404
41
0.83
-
-
Lactic acid
C3Hn03
40
1.07
0.54
0.96
Tartaric acid
C..HnOn
31
0.53
0.35
0.46
Citric acid
C~s07
37
0.75
0.46
0.67
Glycine
C2Hs~N
31
0.96 ..
0.55
-
Alanine
C3H702N
40
1.35 ..
0.94
-
Valine
CsHn02N
51
1.84'.
-
-
Glutanic acid
CsHyO~
41
1.14
..
-
-
Tyrosine
c,Hn03N
60
1.81
..
-
-
Methanol
CH40
37
1.50
0.96
1.26
Ethanol
C2HnO
52
2.09
1.35
1.80
Isopropanol ·
CJHsO
60
2.40
1.42
-
Amyl alcohol
CsH120
68
2.73
1.27
1.73
:. Theoretically calculated
Including nitrification
Tabel2.2
Oxygen consumption and biodegradability of organic materials /14/.
2.3. Nitrogen
Similar to organic matter, nitrogen in wastewaters may be divided into a number of
fractions.
47