نتایج جستجو برای: clarifier
تعداد نتایج: 231 فیلتر نتایج به سال:
The photocell is a silicon photodiode integrated onto a chip together with a voltage-tofrequency convertor. This combination makes a light intensity-to-frequency convertor which has a linear dynamic range of six decades. The light intensity can then simply be determined by counting the frequency. The sensitive area is about two millirrietres square and the band of light produced by the cylindri...
Abstract. The purpose of this paper is to present a regulator for control of the continuous-sedimentation process in a clarifier-thickener unit when this is modelled in one space dimension and when the settling properties of the solids obey Kynch’s assumption. The model is a scalar hyperbolic conservation law with space-discontinuous flux function and point source. The most desired type of solu...
Background and Objective: Human adenoviruses transmitted from contaminated water are one of the major pathogens that has been introduced as one of the most important new qualitative water indicators due to their resistance against the purification processes. The main objective of this study was to evaluate efficiency of human adenovirus removal in different units of Isfahan Water Treatment Plan...
The main objective of this paper is to evaluate the risk of suffering rising sludge problems under different modes of operation and clarifier designs using the IWA Benchmark Simulation Model no 1 (BSM1). First, as a reference case, waste flow, dissolved oxygen, external recirculation and the settling area were modified and the risk of rising sludge quantified. In a second series of simulations,...
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