The Beijing Research lnstitute of Coal Chemistry (BRICC) is developing the SMOVEN process for hot gas desulfurization. The SMOVEN process features sulfidation in an entrained bed,regeneration in a low velocity fluid b...The Beijing Research lnstitute of Coal Chemistry (BRICC) is developing the SMOVEN process for hot gas desulfurization. The SMOVEN process features sulfidation in an entrained bed,regeneration in a low velocity fluid bed or a moving bed with oxygen and sorbent circuIation con-trolled by gas stream. A series of tests on the bench scale unit and the continuous process devel-opment unit were carried out. The regenerable metal oxide sorbents were adopted for the sulfur-related components removing from coal gas at the temperature of 550-650℃. A fluidized bed gasifier of 100 mm (id) generated coal gas for tests. The principle of SMOVEN process has been positively verified.展开更多
针对国内污水处理厂在升级改造中面临用地受限、出水水质难以稳定达标等问题,拟采用移动床生物膜工艺加以解决。中试研究表明,泥膜复合系统运行效果良好,抗冲击负荷能力强,可同时强化脱氮除磷,出水COD、TN、NH_4^+-N浓度均能稳定达到一...针对国内污水处理厂在升级改造中面临用地受限、出水水质难以稳定达标等问题,拟采用移动床生物膜工艺加以解决。中试研究表明,泥膜复合系统运行效果良好,抗冲击负荷能力强,可同时强化脱氮除磷,出水COD、TN、NH_4^+-N浓度均能稳定达到一级A标准,平均值分别为27.96、10.72、1.21 mg/L,均优于活性污泥系统,且进水负荷提高了25%。当污泥浓度为2.8~3.2g/L、DO控制在1.2~1.6 mg/L、按C/N值为3~4投加碳源时,对TN的去除效果最佳,去除率达到82%以上。好氧区悬浮填料经过72 d生物膜成熟,最终表面负荷达到了1.39 g N/(m^2·d);缺氧区悬浮填料至120 d时表面负荷达到1.28 g N/(m^2·d)。将移动床生物膜工艺用于A^2/O的升级改造,可大幅提高容积负荷,且出水水质能够稳定达标。展开更多
文摘The Beijing Research lnstitute of Coal Chemistry (BRICC) is developing the SMOVEN process for hot gas desulfurization. The SMOVEN process features sulfidation in an entrained bed,regeneration in a low velocity fluid bed or a moving bed with oxygen and sorbent circuIation con-trolled by gas stream. A series of tests on the bench scale unit and the continuous process devel-opment unit were carried out. The regenerable metal oxide sorbents were adopted for the sulfur-related components removing from coal gas at the temperature of 550-650℃. A fluidized bed gasifier of 100 mm (id) generated coal gas for tests. The principle of SMOVEN process has been positively verified.
文摘针对国内污水处理厂在升级改造中面临用地受限、出水水质难以稳定达标等问题,拟采用移动床生物膜工艺加以解决。中试研究表明,泥膜复合系统运行效果良好,抗冲击负荷能力强,可同时强化脱氮除磷,出水COD、TN、NH_4^+-N浓度均能稳定达到一级A标准,平均值分别为27.96、10.72、1.21 mg/L,均优于活性污泥系统,且进水负荷提高了25%。当污泥浓度为2.8~3.2g/L、DO控制在1.2~1.6 mg/L、按C/N值为3~4投加碳源时,对TN的去除效果最佳,去除率达到82%以上。好氧区悬浮填料经过72 d生物膜成熟,最终表面负荷达到了1.39 g N/(m^2·d);缺氧区悬浮填料至120 d时表面负荷达到1.28 g N/(m^2·d)。将移动床生物膜工艺用于A^2/O的升级改造,可大幅提高容积负荷,且出水水质能够稳定达标。
