An Experimental Study on the Use of Eggshell Powder as a pH Modifier: Production of Lime from Eggshells

Authors : Abraham Commey and Michael Mensah

Volume/Issue : Volume 4 - 2019, Issue 9 - September

Google Scholar :

Scribd :

The use of pH modifiers in the mining and allied industries is very essential since certain reactions require certain pH to occur. Moreover, without the required pH, certain unwanted by-product of chemical reaction may occur which tend to make the atmosphere unsafe. Various works have been done to produce pH modifiers from certain waste products like the sea shell, oyster shell and the like. This work demonstrates an experimental study on the use of eggshell powder as a pH modifier. Eggshell contains about 94% calcium carbonate which when calcined produces quick lime (calcium oxide) which can be used as a pH modifier. In this work, eggshell powder was produced from dried eggshell and was sieved through 90µm. 100g of the sieved sample was then subjected to calcination at a temperature of 1000ᶿC for 2hours but observations were made at temperatures 600ᶿC, 700ᶿC, 800ᶿC and 900ᶿC. The calcined product was tested on a solution sample with natural pH of 9.71. Addition of 2g of the calcined sample increased the pH to 12.44.

Keywords : Calcination, Eggshell Powder, pH Modifier.


Paper Submission Last Date
31 - October - 2022

Paper Review Notification
In 1-2 Days

Paper Publishing
In 2-3 Days

Video Explanation for Published paper

Never miss an update from Papermashup

Get notified about the latest tutorials and downloads.

Subscribe by Email

Get alerts directly into your inbox after each post and stay updated.

Subscribe by RSS

Add our RSS to your feedreader to get regular updates from us.