Publication - Research and analysis
Sewage sludge: odour emissions assessment
This report is part of the research project undertaken by the James Hutton Institute on the impacts on human health and environment arising from the spreading of sewage sludge to land (CR/2016/23).
7. Appendix 1 Sampling Data
| Date | Cake type & approx. age | Sample ID | Sampling times | Odour Concentrations 3 | Hood Ventilation rate (m3/s) | Emission rate (ouE/s/m2) | H2S Conc. (ppm) | Mean H2S Emission 2 | NH3 Conc. (ppm) | NH3 Emission (mg/s/m2) | Air Temp. off hood (0C) | Cake Temp (0C) | Amb. Temp (0C) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| samples | Geo. Mean | |||||||||||||
| 18/04 | LIMED 8 weeks | A1 | 11:05-11:09 | 21,264 | 28,007 | 0.0084003 | 241.6 | 0.17 | 0.00180 | 28 | 0.171 | 14.2 | 10.7 | 14.9 |
| A2 | 11:10-11:14 | 26,880 | 0.15 | |||||||||||
| A3 | 11:15-11:20 | 38,436 | 0.12 | |||||||||||
| 18/04 | LIMED 4 weeks | B1 | 11:37-11:42 | 32,736 | 29,102 | 0.0116045 | 346.7 | 0.29 | 0.00372 | 14 | 0.118 | 16.4 | 16.8 | |
| B2 | 11:43-11:48 | 36,288 | 0.20 | |||||||||||
| B3 | 11:49-11:53 | 20,748 | 0.17 | |||||||||||
| 19/04 | THP 12 weeks | C1 | 09:28-09:32 | 964 | 726 | 0.0092663 | 6.9 | 0.000 | 0 | 32 | 0.216 | 16.1 | 9.2 | 15.9 |
| C2 | 09:33-09:37 | 622 | 0.000 | |||||||||||
| C3 | 09:38-09:43 | 639 | 0.000 | |||||||||||
| 19/04 | THP 4 to 5 weeks | D1 | 10:17-10:21 | 724 | 722 | 0.0067549 | 5.0 | 0.000 | 0 | 26 | 0.128 | 18.7 | 10.7 | 15.8 |
| D2 | 10:22-10:26 | 860 | 0.000 | |||||||||||
| D3 | 10:27-10:32 | 604 | 0.000 | |||||||||||
| 19/04 | AD 4 to 5 weeks | E1 | 13:08-13:12 | 3,949 | 4,325 | 0.0034641 | 15.4 | 0.066 | 0.00025 | 9 | 0.023 | 18.3 | 10.0 | 17.8 |
| E2 | 13:13-13:17 | 4,424 | 0.047 | |||||||||||
| E3 | 13:18-13:22 | 4,631 | 0.034 | |||||||||||
| 19/04 | AD 12 weeks | F1 | 14:04-14:08 | 726 | 920 | 0.0095550 | 9.0 | 0.003 | 0.00003 | 4 | 0.028 | 18.8 | 9.2 | 18.2 |
| F2 | 14:09-14:14 | 972 | 0.002 | |||||||||||
| F3 | 14:15-14:20 | 1,103 | 0.002 | |||||||||||
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