摘要
采用接种排硫硫杆菌纯种的升流式生物填料塔法,重点研究了含硫化物废水生物处理过程中溶解氧以及容积负荷与单质硫形成的关系。结果表明,当溶解氧和硫化物消耗比(R)在0.53～1.46之间变化,反应器能够稳定形成单质硫,且当R=0.83时,89%硫化物转化为单质硫,处理过程中硫化物负荷对脱硫反应器中硫化物转变为何种形式也有很大影响。采用动态光散射仪分析生成硫颗粒粒径,结果显示生成硫颗粒的粒径变化幅度大,变化范围为0.5～10μm。对反应器中形成的生物膜以及溶液中生成的单质硫进行显微结构分析,结果表明排硫硫杆菌能在块状填料表面迅速挂膜,并能生成胶体状硫粒。该项研究将为废水处理过程中生成单质硫的有效分离提供理论支持。
The relationships of microbiologically sulfur producing and dissolved oxygen, volumetric loading rate were studied in detailed during biological treatment for wastewater containing sulfide. When the ratio of consumption rate of oxygen to sulfate （R） varied in the range of 0.53-1.46, sulfur could produce steadily, when R=0.83, 89% sulfate transferred into microbiological sulfur. The volumetric loading rate of sulfate in the reactor also had effect on the sulfur transfer. The particle size of producing-sulfur changed between 0.5 μm to 10μm. Microstructure of bio-membrane and producing-sulfur were observed by SEM （Scanning Electron Microscopy）, Thiobacillus thioparus could grow and produce bio-membrane in the packing rapidly, and produced colloidal sulfur particle. These provided theory support for the efficient separation of producing sulfur during biological treatment for wastewater containing sulfide.
出处
《农业环境科学学报》
CAS
CSCD
北大核心
2006年第2期522-526,共5页
Journal of Agro-Environment Science
基金
天津市自然科学基金项目(013607911)
关键词
硫化物
废水
单质硫
溶解氧
容积负荷
suffide
wastewater
sulfur
dissolved oxygen
volumetic loading rate
