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| 盐作为营养物质是藻类培养所必须的,但盐浓度过高,会对微生物的生长产生抑制,从而影响生物工艺在高浓度有机废水中的应用。其主要原因在于高盐度环境下的盐析作用致使普通微生物的氢酶活性降低、盐浓度升高导致水的渗透压升高,使微生物细胞脱水引起细胞发生质壁分离,从而导致普通微生物细胞破裂而死亡。为此,高盐废水的生物处理需要对废水进行稀释,使盐质量分数小于1% |
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sunxuefei(金币+10, 翻译EPI+1): 2011-01-16 21:56:44
| Salts as one of food materials is very necessary for the algae cultivation,but the high salt concentration will repress the microbe’s growth and affect the application in organic water with biological technic.The main reason is that high salinity will descrease the activity of normal microbe’s catalase, the rising salt concentration leads to the water’s osmolarity increase, the plasmolysis occurred due to the dehydration of microbial cells and this will result in the death of microbial cells.Therefore, the biological treatment for high salt wastewater needs to dilute wastewater and make the quality percent under 1%. |
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