Equilibrium and Mechanism of Removal of Total Dissolved Solids and Hardness by Adsorption onto Neem Seed Powder Adsorbent

Urooj Gul Sandilo, Urooj Gul Sandilo and Amir Detho, Amir Detho and Memon, Asif Ali and Abdul Qayoom Jakhrani, Abdul Qayoom Jakhrani and Abdul Kadir, Aeslina (2023) Equilibrium and Mechanism of Removal of Total Dissolved Solids and Hardness by Adsorption onto Neem Seed Powder Adsorbent. Water Air Soil Pollut. pp. 1-14.

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Abstract

This study is aimed to investigate the level of total dissolved solids and hardness of groundwater using neem seed powder as an adsorbent. Analysis of four groundwater samples in triplicate has been collected from diferent locations in Nawabshah city. The level of total dissolved solids (TDS), hardness, calcium, and magnesium is examined using seven diferent doses, i.e., 0.5,1.0 1.5, 2.0, 2.5, 5.0, and 10.0 g of neem seed powder per 100 ml of groundwater samples. The neem seed powder is mixed with groundwater samples and then stirred for a few minutes for amalgamation. The samples subsequently are left without disturbance for 30 min. The level of total dissolved solids has been measured with a TDS meter, hardness, and calcium using the titration method and magnesium with a different method. It was from the analysis that the removal percentage achieved 70% of total dissolved solids, 70% of hardness, 62% of calcium, and 65% of magnesium reduced from the examined groundwater samples. The maximum reduction of TDS, hardness, and calcium magnesium is achieved using the dose of 2.5 g/100 mL of groundwater samples at a retention time of 30 min. However, the fnding result revealed that the values of the coefcient of determination (R2 ) for Langmuir are higher than Freundlich, indicating that better ftted than the latter. The results showed that TDS, hardness, calcium, and magnesium removal were 0.9972, 0.9953, 0.9961, and 0.9958, respectively. This indicates that adsorbent surface covers a monolayer of adsorbing molecules.

Item Type:	Article
Uncontrolled Keywords:	Neem seed powder · Organic adsorbent · Total dissolved solids · Hardness
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Civil Engineering and Built Environment > Department of Architecture
Depositing User:	Mr. Mohamad Zulkhibri Rahmad
Date Deposited:	25 Sep 2023 01:41
Last Modified:	25 Sep 2023 01:41
URI:	http://eprints.uthm.edu.my/id/eprint/9991

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