1.1 Background
Today, the purification system to eliminate the color and organic content in order to get a desired substance that has several kinds of techniques. The system of textile industrial waste water treatment is intended to eliminate many colors and are commonly used are coagulation-flocculation.
Biological processes generally use the activated sludge process or a biofilter which is the processing continued with the aim to reduce the organic content of the other. Lack of coagulation-flocculation process is the high consumption of chemicals and produce chemical sludge.
Alternative to the process of coagulation-flocculation is the process of adsorption using activated carbon. The adsorption by activated carbon proved to give good results in setting aside the color and organic content, but the cost becomes very expensive to replace the saturated activated carbon. To reduce the costs involved are modified in the process using a combination of physical and biological systems, namely by incorporating activated carbon into the activated sludge aeration tank. Use of activated carbon in activated sludge aeration tank produced a better processing efficiency and cost more economical than the process of coagulation-flocculation and activated carbon adsorption process premises.
Increasing removal efficiency of dyes and other organic and low cost of this system is due to reduced use of carbon micro-organisms. Nevertheless until now bioregenerasi mechanism is still not able to clearly articulated. With a background operation described above, to be more aware of dye adsorption by activated carbon in more depth, we perform this experiment.