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The first trial on the sloped-column lime feeder used , was developed using tap water. (Fragment sentence) To keep The flow rate for this experiment (120mL/min) was calculated based on the upflow velocity to be the same as for the vertical column lime feeder (previous lime feeder), the flow rate for the new feeder was calculated to be 120mL/min. found for experiments 1 and 2. The amount of lime taken for the new feeder this experiment was 80 grams, which was calculated in volumetric proportion with the old feeder. (What do you mean old feeder and new feeder? What changed? I thought the diameter was the same. Why will the upflow velocity or amount of lime you add change?) experiment 2.
INTRODUCTION
The experiment consisted of the injection of tap water with a flow rate of 120mL/min (Again, include upflow velocities, not flow rate) regulated with a peristaltic pump being operated by the process controller software. At the effluent end (top of the sloped column)a pH probe was connected to collect periodic (every 5 seconds) data of the effluent pH. (Where is your process control file? How did you regulate flow rate in process control? You should have a separate materials and methods section)
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