| Title |
Pretreatment of Raw Water Using The Fixed - bed and Fludized - bed Bio filter Processes |
| Authors |
정팔진 ; 곽동희 ( Paul Gene Chung ; Dong Heui Kwak ) |
| Abstract |
In this study, the degree of polluted raw water treatment of microbes has been measured by dissolved organic matters, NH₃-N, ABS, phenol, and THM_(FP) etc., which not removed conventional water treatment plant effectively. The objective of this study is to investigate the removal characteristics and efficiency of the bio-filter processes. The estimated values for kinetic coefficients were K,=31.89㎎/ℓ, k=1.55day^(-1), μ_m=0.88day ^(-1), Y=0.57gVSS/gBOD_(removed) and k_d=0.08day^(-1). In the low loading rate of low substrate(0.02 -1.5㎏ COD/㎥·day), fixed-bed reactor could be operated at steady-state, but fluidized-bed reactor was hard to operate at steady-state for decrease of pellet growth rate and increase of specific pellet density. The removal efficiency was more sensitive to NH₃-N loading rate than KMnO₄ loading rate. It was possible to linearize the relationship between the water temperature and removal efficiency as well as the relationship between loading rate of substrates and removal efficiency. |