Effects continuous adding of powdered activated carbon (PAC) on biological removal of anionic deterget in continous reactor were assessed. Results of these experiments showed that introduction of PAC into biological treatment of anionic detergent (ABS or LAS), has indicated significant effect on removal efficiency. Conducting continuous feeding of PAC into bench scale of continuous process system for removal of detergent has resulted in more stability of MBAS removal efficiency, even when MLSS concentration in aeration tank dropped or MBAS concentration in influent water rose rapidly. With continuous addition of PAC, the MBAS removal efficiency was relatively constant even when the water temperature dropped raoidly. In other words, continuous feeding of PAC can improve the stability for shock loads or temperatures shanges. At lower temperatures, microorganisms that were used for detergent removal in bench scale of continuous process system, need longer adaptation or acclimation periods compared with higher temperatures.
Nusa Idaman Said.
Nusa Idaman Said.
