Technical University of Łódź, Institute of Fermentation Technology and Microbiology, Poland.
Bioresour Technol. 2013 Aug;142:345-52. doi: 10.1016/j.biortech.2013.05.047. Epub 2013 May 22.
The anaerobic digestion was investigated using mixed sewage sludge and poultry manure. The experiments showed that a 30% addition of poultry manure to the sewage sludge did not increase specific gas yield (376 dm(3)/kg VS versus 384 dm(3)/kg VS), however gas production rate as calculated per unit volume was 1.5 higher for sludge and manure mixture. The anaerobic digestion turned out to be inefficient in terms of pathogen treatment, since the reduction of Enterobacteriaceae reached only two logarithmic units. In the course of the digestion processes, nutrients were released to the supernatant, and longer SRT favored that phenomenon. The liquor after the digestion of sludge alone was rich in phosphates (348-358 gP/m(3)) and contained a lot of organic carbon (COD of 2705-6034 gO2/m(3)). Conversely, more ammonium nitrogen was found in the supernatant after co-digestion of sludge with manure (2094-2221 gN/m(3)). However, there was no evidence of ammonia inhibition.
采用混合污水污泥和家禽粪便研究了厌氧消化。实验表明，家禽粪便添加量为 30%时，并未增加比产气量（376 升/千克 VS 比 384 升/千克 VS），但单位体积的产气量增加了 1.5 倍。就病原体处理而言，厌氧消化效果不佳，因为肠杆菌科的减少仅达到两个对数单位。在消化过程中，营养物质被释放到上清液中，较长的 SRT 有利于这种现象。单独消化污泥后的消化液富含磷酸盐（348-358 克 P/立方米），并含有大量的有机碳（2705-6034 克 O2/立方米 COD）。相反，在污泥与粪便共消化后，上清液中发现更多的铵态氮（2094-2221 克 N/立方米）。但是，没有氨抑制的证据。
