Open AccessEffect of types of control materials in a modified sedimentation equipment batch laboratory scale
Author(s) -
Mustafa,
Masing,
M. Irwan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/885/1/012045
Subject(s) - settling , sedimentation , flocculation , deposition (geology) , suspension (topology) , materials science , mineralogy , environmental science , geology , environmental engineering , mathematics , sediment , paleontology , homotopy , pure mathematics
The purpose of this research is to be able to recognize laboratory scale sedimentation devices in the process of deposition through batch system experiments in a cylindrical tub, to explain how the relationship between time, height of deposition and concentration of various solids with sedimentation rates, can compare the precipitating materials used in the sedimentation process both manually and automatically, and can determine the performance of tools and sedimentation rates by using a variety of sedimentation and flocculant materials used in the sedimentation process both without the addition of flocculants or with the addition of flocculants. In supporting this research, the method used is experimentation and analysis. The sample is a mixture of media that is water - depositional material (solids) where the depositional material has previously been sieved and cleaned of impurities and the variables analyzed were deposition time, deposition height, suspension concentration and concentration of flocculant addition. the settling material used varies, among others: 50 grams, 100 grams, 150 grams, 200 grams, and 250 grams, then put into a settling tube. While the results can be obtained from visualization data that is based on more accurate observations and data processing conditions (measurements) obtained in the form of the influence of time on settling rate, the influence of sedimentation column height on settling rate and the effect of solid concentration on settling rate. From the results obtained from various settling materials, the settling speed for CaCO3 precipitates without flocculants and with flocculants is 4.43 cm / minute and 3.86 cm / minute. For the settling speed for tapioca flour depositor without flocculant and with flocculant is 23.64 cm / minute and 23.47 cm / minute. And for settling speed for dry soil sedimentation material without flocculant and with flocculant is 18.60 cm / minute and 15.10 cm / minute and for settling speed of active carbon precipitation material without flocculant and with flocculant is 7.76 cm / minute and 7 .05 cm / minute.