Department of Environmental Engineering and anagement, Chaoyang University of Technology, Wufong Township, Taichung County, Taiwan, ROC.
Waste Manag Res. 2012 Jan;30(1):32-48. doi: 10.1177/0734242X10383079. Epub 2010 Sep 29.
This study aimed to investigate the effects of eight metals on the anaerobic digestion of the organic fraction of municipal solid waste (OFMSW) in bioreactors. Anaerobic bioreactors containing 200 mL MSW mixed completely with 200 m L sludge seeding. Ca and K (0, 1000, 2000 and 6,000 mg L(-1)) and Cr, Ni, Zn, Co, Mo and W (0, 5, 50 and 100 mg L(-1)) of various dose were added to anaerobic bioreactors to examine their anaerobic digestion performance. Results showed that except K and Zn, Ca (728 to ~1,461 mg L(-1)), Cr (0.0022 to 0.0212 mg L(-1)), Ni (0.801 to 5.362 mg L(-1)), Co (0.148 to 0.580 mg L(-1)), Mo (0.044 to 52.94 mg L(-1)) and W (0.658 to ~40.39 mg L(-1)) had the potential to enhance the biogas production. On the other hand, except Mo and W, inhibitory concentrations IC(50) of Ca, K, Cr, Ni, Zn and Co were found to be ~3252, ~2097, ~0.124, ~7.239, ~0.482, ~8.625 mg L(-1), respectively. Eight spiked metals showed that they were adsorbed by MSW to a different extent resulting in different liquid metals levels and potential stimulation and inhibition on MSW anaerobic digestion. These results were discussed and compared to results from literature.
本研究旨在探讨八种金属对有机垃圾生物反应器中城市固体废物（OFMSW）厌氧消化的影响。厌氧生物反应器中含有 200 毫升的 MSW 与 200 毫升的污泥接种物完全混合。向厌氧生物反应器中添加 Ca 和 K（0、1000、2000 和 6000 mg/L）以及 Cr、Ni、Zn、Co、Mo 和 W（0、5、50 和 100 mg/L），以研究其对厌氧消化性能的影响。结果表明，除 K 和 Zn 外，Ca（728 至1461 mg/L）、Cr（0.0022 至0.0212 mg/L）、Ni（0.801 至5.362 mg/L）、Co（0.148 至0.580 mg/L）、Mo（0.044 至52.94 mg/L）和 W（0.658 至40.39 mg/L）有提高沼气产量的潜力。另一方面，除 Mo 和 W 外，Ca、K、Cr、Ni、Zn 和 Co 的抑制浓度 IC50 分别约为3252、2097、0.124、7.239、0.482、8.625 mg/L。八种添加金属的研究表明，它们被 MSW 不同程度地吸附，导致液体金属水平不同，对 MSW 厌氧消化有不同的刺激和抑制作用。这些结果与文献中的结果进行了讨论和比较。
