Apparatus description

Apparatus Description

This is the whole FReTA experimental setup to analyze floccilation.

Starting at the clay stock bucket with the clay at a concentration 10g/L in it. Below this bucket, is the clay stock control valve, which is used to control the NTU value of the raw water in the blue bucket.When the turbidity of the raw water drops below the given value in the process controller, this valve will turn on 1 second every 10 seconds to correct the turbidity. On the left of the bucket, is the influent turbidimeter, which is constantly monitoring the turbidity of raw water which pumped through it by the clay pump.

These sets of coiled tubes are the tube flocculator; it is where flocculation happens after the alum has been added to the raw water. Originally, the setup had just one length of flocculator tubing of 2796 cm. In this experiment, the other two length of tubing added, which allows to compare three results in the experiment.

Figure 1:Whole Setup

Figure 2:Bucket Setup

Figure 3:Turbidimeter

Figure 4:New Turbing Apparatus