1
Supplementary Information (3 pages)
2 3
Additional information on the data calculated for use in the study.
4 5
The following information is provided to the article in Environmental Science and
6
Technology on
7
Determination of the Internal Chemical Energy of Wastewater
8
by
9
E.S. Heidrich*, T.P. Curtis and J. Dolfing
10
School of Civil Engineering and Geosciences, Newcastle University, Newcastle
11
upon Tyne NE1 7RU, UK
12
* Corresponding author phone: +44 (0)191 222 6323, fax: +44 (0)191 222 6502,
13
email:
[email protected].
14
This document was prepared on 15th November 2010
15 16
Page S-2: TABLE S-1: List of common organic compounds and their derived energy
17
per gCOD values
18 19
Page S-3: S-2 Energy Calculations made from Shizas and Bagley’s (3) data compared
20
to those made in this paper.
S-1
21 22
TABLE S-1: List of common organic compounds and their derived energy per gCOD
23
values
24 Compound Benzene Linoleic acid Benzoic acid Myristic acid Lauric acid Acetic acid Phenol Palmitic Acid Oleic acid Methane Ethane Lactic acid Ethanol Glucose Propene Cyclopropane Ethanal Ethene Sucrose Methanol Chloroethylene Oxalic acid Formic acid Ethyne Hexachlorobenzene Dichloroethylene (1,1) Dichloroethylene (1,2) Methanal Trichloroethylene Teterachloroethylene Chloroform Trichloroacetic acid
Formula C6H6 C18H32O2 C6H5COOH CH3(CH2)12CO2H CH3(CH2)10CO2H CH3COOH C6H5OH CH3(CH2)14CO2H CH3(CH2)7CH=CH(CH2)7CO2H CH4 C2H6 CH3CH(OH)COOH C2H5OH C6H12O6 C3H6 C3H3 CH3CHO C2H4 C12H22O11 CH3OH C2H3Cl (COOH)2 HCOOH C2H2 C6Cl6 C2H2Cl2 C2H2Cl2 HCHO C2HCl3 C2Cl4 CHCl3 CCl3COOH
∆H/gCOD 10.2 13.4 13.4 13.6 13.6 13.6 13.6 13.6 13.7 13.9 13.9 14.0 14.3 14.3 14.3 14.5 14.6 14.7 14.7 15.1 15.7 15.9 15.9 16.3 16.5 17.1 17.2 17.8 20.0 26.0 29.1 30.4
25
S-2
26 27
S-2 Energy Calculations made from Shizas and Bagley’s (3) data compared to those
28
made in this paper.
29 30
Shizas and Bagley (3) use a sample of municipal wastewater which prior to drying
31
contains 431 mg/L COD. This sample is then oven dried to give a total solids
32
measurement of 1980 mg/L. The dried sample is used in a bomb calorimeter giving
33
3.2 kJ/g dried weight.
34 35
Calculations derived from this data cited in various papers (5, 7-9, 14):
36 37 38 39 40 41
If the exercise is repeated on the data from the present paper using the oven dried
42
samples and the measurement taken for COD prior to drying the results would have
43
been:
44 45
Cramlington
46 47 48 49
Hendon
50 51 52 53
This is an underestimation of 60% and 45% respectively.
54
S-3
