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生物脱硫的影响因素!

时间:2019-07-19
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沼气的生物脱硫工艺是现在默认效果比较好的一种,下面小编就给大家讲一讲影响沼气生物脱硫的几个因素!
Bio-desulfurization technology of biogas is a better default effect now. The following edition will tell you a few factors affecting bio-desulfurization of biogas!
(1)DO对生物脱硫效果的影响
(1) Effect of DO on biological desulfurization
DO是影响生物脱硫效果的一个重要因素。试验发现在不同的硫化物负荷下,反应器内都存在一个DO值。此时,反应器对硫化物的去除率比较高(90%以上),绝大部分S2-转化为S0,基本不生成SO42-。因此,认为DO值与硫化物负荷有关,二者成线性关系。
DO is an important factor affecting the effect of biological desulfurization. It was found that there was a DO value in the reactor under different sulfide loads. At this time, the sulfide removal rate of the reactor is relatively high (more than 90%), most of the S2 - is converted to S0, and no SO42 - is produced. Therefore, it is considered that the DO value is related to the sulfide load, and there is a linear relationship between the DO value and the sulfide load.
(2)pH值对生物脱硫效果的影响
(2) Effect of pH Value on Biological Desulfurization
pH值影响着无色硫细菌的活性及废水中硫化物的存在状态。无色硫细菌适应的pH值范围较广,但大多数细菌适宜的pH范围为6~8。pH值确实与反应器的硫化物去除负荷呈直线关系。
PH value affects the activity of colorless sulfur bacteria and the existence of sulfide in wastewater. Colorless sulfur bacteria can adapt to a wide range of pH values, but most bacteria can adapt to a range of 6-8. The pH value does have a linear relationship with the sulfide removal load of the reactor.
沼气生物脱硫设备
(3) 反应器及填料的影响
(3) Effect of reactor and packing
Buisman等用3种反应器:完全混合反应器(CSTR)、旋转反应器及上流式反应器,研究无色硫细菌脱硫的适用性。在硫化物出水浓度低于2mg/L的条件下,3种反应器的去除率分别是:2.4、10、11kg/m3·d,3种反应器所需的停留时间分别为:35、10、13min。
Buisman et al. studied the applicability of colorless sulfur bacteria desulfurization by using three kinds of reactors: complete mixing reactor (CSTR), rotating reactor and upflow reactor. Under the condition that the sulfide effluent concentration is less than 2 mg/L, the removal rates of the three reactors are 2.4, 10, 11 kg/m3.d, and the residence time of the three reactors are 35, 10 and 13 minutes, respectively.
(4)硫化物的负荷对生物脱硫过程效果的影响
(4) Effect of sulphide loading on biological desulfurization process
能否在高硫化物负荷下保持较好的脱硫效果,是衡量脱硫反应器的一个重要指标。硫化物容积负荷越高,微生物脱硫反应器越能保持良好的运行效果,且不易发生出水中SO42-浓度升高的现象,运行条件易于控制,运行效果较为稳定。
Whether the desulfurization effect can be maintained under high sulfide load is an important index to measure the desulfurization reactor. The higher the sulfide volume load, the better the microbial desulfurization reactor can maintain good operation effect, and it is not easy to increase SO42 - concentration in effluent. The operation conditions are easy to control and the operation effect is more stable.
今天的精彩内容就暂且和大家介绍到这里了,如果大家有其他想要补充的地方,欢迎大家到沼气生物脱硫的官网给我们留言评论:http://www.dh-gwsg.com,或者直接拨打我们的咨询热线,我们将给您一个满意的答复!
Today's wonderful content will be introduced here for the time being. If you have other places to add, you are welcome to leave a message and comment on the official website of biogas biological desulfurization: http://www.dh-gwsg.com, or call our hotline directly. We will give you a satisfactory answer!
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