Graduate School of Life and Environmental Science, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan.
Bioresour Technol. 2011 Jul;102(14):7064-8. doi: 10.1016/j.biortech.2011.04.085. Epub 2011 Apr 30.
In this study, a fixed zeolite bioreactor was developed for the anaerobic digestion of ammonium-rich swine wastes (NH(4)(+)-N=3770 mg/l). To investigate the performance of the reactor, a sunken zeolite bioreactor and a bioreactor without zeolite were used as controls. The new bioreactor exhibited good performance, with startup time on the 14th day and methane production of 178.5 ml/g-VS during all 32 days of the experiment at 35°C. This bioreactor significantly shortened startup time, enhanced methane gas yield more than twofold and made COD removal more efficient than under the other models. Furthermore, it reduced the inhibition of high ammonium concentration during the anaerobic digestion of ammonium-rich swine wastes via effective ammonium removal and the immobilisation of microorganisms. Because of its simple structure and good performance, the fixed zeolite bioreactor can be recommended for future use.
在这项研究中，开发了一种固定沸石生物反应器，用于处理富含铵的猪废物（NH4+-N=3770mg/l）的厌氧消化。为了研究该反应器的性能，使用下沉式沸石生物反应器和无沸石生物反应器作为对照。新的生物反应器表现出良好的性能，在 35°C 下进行的 32 天实验中，启动时间为第 14 天，甲烷产量为 178.5ml/g-VS。该生物反应器显著缩短了启动时间，使甲烷气体产量提高了两倍以上，并且比其他模型更有效地去除 COD。此外，它通过有效去除铵和固定微生物来减轻富含铵的猪废物厌氧消化过程中高铵浓度的抑制作用。由于其结构简单、性能良好，固定沸石生物反应器可推荐用于未来使用。
