PAC와 alum을 이용한 하수 인 제거 응집공정의 최적화를 위한 반응표면분석법의 적용

Abstract

The goal of this paper sets up the experimental design through the reaction analysis method and executes an experiment and tries to find the coagulant dose according to the Al:P mol ratio of the optimum coagulant Polyaluminum chlorid(PAC) and alum a condition in order to minimize the phosphoric concentration which is suitable for the effluent standard. The experiments were carried out using jar test and response surface methodology(RSM) a systematic experimental design which was applied to optimize the coagulation process. A central composite design(CCD), which is the standard design of RSM, was used to build a response surface model and evaluate the effects and interactions of the two factor(PAC,alum), such as coagulant dose(Al:P mol ratio), phosphorus concentration. As a compromise between the two responses, the minimum amount of 0.2mg/L P. The optimum condition s which yielded by using 2.0 PAC(Al:P mol ratio) and 2.5 alum(Al:P mol ratio) in case of the bioreactor effluent. Therefore, 2.8 PAC(Al:P mol ratio) and 1.97 alum(Al:P mol ratio) in bioreactor effluent.

TP used mainly in the field and the to set the DRP value at a variable and minimize the phosphoric concentration 0.1mg / L were optimized with a goal in order to grasp the phosphorus concentration by using the response optimizer tool. This demonstrates the benefits of the approach beasd on thr RSM in achieving maximum amount of information.