Department of Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
J Biotechnol. 2010 Oct 15;150(2):240-5. doi: 10.1016/j.jbiotec.2010.08.012. Epub 2010 Sep 6.
A novel moving-bed sequential continuous-inflow reactor (MSCR) was developed and investigated for the degradation of high concentrations of phenol and formaldehyde. Results indicated the MSCR could simultaneously remove greater than 99% of the target compounds for concentrations up to 1300 mgL⁻¹ each (corresponding to the loading rate of 1.04 kgm⁻³d⁻¹), and around 96% of the chemical oxygen demand of ∼4800 mgL⁻¹ with a 6-h cycle time. An increase of the inlet concentrations to 1500 mgL⁻¹ (loading rates of 1.2 kgm⁻³d⁻¹), however, caused a slight reduction in the removal efficiency. The MSCR handled hydraulic shock loads of up to three times the normal flow rate without adversely affecting the elimination performance of the contaminants. These unique features, combined with the efficient and compact nature of the process, thus recommend MSCR as a promising technique for the removal of mixture of toxic compounds in a single-basin bioreactor.
一种新颖的移动床序批连续流反应器（MSCR）被开发出来，并用于研究高浓度苯酚和甲醛的降解。结果表明，MSCR 可以同时去除浓度高达 1300mg/L 以上的目标化合物（对应 1.04kgm⁻³d⁻¹的负荷率），并在 6h 的周期时间内去除约 4800mg/L 的化学需氧量的 96%左右。然而，将入口浓度提高到 1500mg/L（负荷率为 1.2kgm⁻³d⁻¹）会导致去除效率略有降低。MSCR 可以处理高达正常流速三倍的水力冲击负荷，而不会对污染物的去除性能产生不利影响。这些独特的特点，加上该工艺的高效和紧凑的性质，因此推荐 MSCR 作为在单个生物反应器中去除有毒化合物混合物的一种有前途的技术。
