Effect of heavy metals on the methanogenic activity of starch-degrading granules
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- Fang, H.H.P. & Hui, H.H. Biotechnol Lett (1994) 16: 1091. doi:10.1007/BF01022409
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Heavy metals in electroplating effluent inhibited specific methanogenic activity (SMA) of anaerobic starch-degrading granules. The SMA of granules on the degradation of starch were reduced by 50% when each gram of biomass was in contact individually with 105 mg of zinc, 120 mg of nickel, 180 mg of copper, 310 mg of chromium, or >400 mg of cadmium. Granules had higher toxicity-resistance than flocculent sludge, due to their layered structure.