Buisman C J, Geraats B G, Ijspeert P, Lettinga G
Department of Water Pollution Control, Agricultural University Wageningen, De Dreijen 12, 6703 BC Wageningen, The Netherlands.
Biotechnol Bioeng. 1990 Jan 5;35(1):50-6. doi: 10.1002/bit.260350108.
A new biotechnological process for sulphide removal is proposed. The principle of this process is that sulphide is converted into elemental sulphur, which can be removed by sedimentation. In this article, investigations on the optimization of the sulphur production are reported. It seems that less than 10% sulphate is produced at low oxygen concentration, when the sulphide concentration in the reactor exceeds 10 mg/L. At sulphide concentrations higher than 20 mg/L only 5% of the incoming sulphide is converted to sulphate even at high oxygen concentrations. An immobilized biomass on recticulated polyurethane produced more sulphate than a free cell suspension at the same oxygen and sulphide concentration.
提出了一种新的硫化物去除生物技术工艺。该工艺的原理是将硫化物转化为元素硫，可通过沉淀将其去除。本文报道了关于硫产量优化的研究。当反应器中的硫化物浓度超过10mg/L时，在低氧浓度下产生的硫酸盐似乎不到10%。即使在高氧浓度下，当硫化物浓度高于20mg/L时，只有5%的进入硫化物转化为硫酸盐。在相同的氧和硫化物浓度下，网状聚氨酯上固定化的生物质比游离细胞悬浮液产生更多的硫酸盐。
