Power law of particle size distributions in water treatment processes
WANG Zai-gang1, XU Yong-peng1, LIU Guang-qi2, CUI Fu-yi1
1.State Key Laboratory of Urban Water Resource and Environment,School of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.China Academy of Urban Planning and Design,Beijing 100037,China
Abstract:
In this paper,the power law of particle size distributions (PSDs) in conventional water treatment processes is developed. After measuring the particle size distributions of raw-water,settled water and filtered water,a mathematical model between particle diameter and the amount of particles was studied. The value of collision frequency factor β in the PSDs model can be used to represent the collision behavior of particles ,and can be used as foundation exponent to choose suitable coagulation to accelerate particles aggregation. At the same time,the relationship between the value of parameter K and the total particles volume V was deduced. K is defined as particle volume exponent,which can represent the total volume of particles. The degression degree of K shows the removal efficiency of potable water treatment units.
Key words: micro-particles particle size distributions (PSDs) particles collision frequency factor β particle volume exponent K
DOI：10.11916/j.issn.1005-9113.2010.03.003
Clc Number:X703.1
Fund:
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Power law of particle size distributions in water treatment processes
本站小编 哈尔滨工业大学/2019-10-23
相关话题/Power law particle size distributions
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