http://localhost:80/xmlui/handle/123456789/19266 2026-04-22T22:34:43Z http://localhost:80/xmlui/handle/123456789/19848 Title: Quality Assessment of Potable Water of Khairpur City Authors: TAJNEES PIRZADA; MIR MUNSIF TALPUR; AHMED DIN RAJPER; MUHAMMAD RAZASHAH; SHAHID NASEEM Abstract: This study is conducted to analyze the quality of potable water resources available to the inhabitants of Khairpur city. Eight sites of ground water and six sites of surface water are selected along the study area. The physico-chemical parameters like temperature, pH, EC, TDS, hardness, alkalinity, chlorides and sulfates, as well as, concentration and distribution of major elements (Na, K, Ca, Mg) in both water resources are measured. The estimated levels of cations and anions are compared with the safe limits laid down by WHO and also with the literature. The r -coefficient of physicochemical parameters show significantly strong positive co-relation among the ground water parameters whereas surface water samples indicate rather no or poor co-relation. The stiff diagram shows the higher cations contents than anions and piper diagram reflects the meteoric water of mixed composition of both the water resources. 2011-08-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/19847 Title: REMOVAL OF MUREXIDE (DYE) FROM AQUEOUS MEDIA USING RICE HUSK AS AN ADSORBENT Authors: Rabia Rehman; Jamil Anwar; Tariq Mahmud; Muhammad Salman; Umer Shafique; Waheed-Uz-Zaman Abstract: The use of low-cost and ecofriendly adsorbent was investigated as an ideal alternative to the current expensive methods of removing dyes from wastewater. Rice husk was used as an adsorbent for the removal of Murexide from aqueous solutions. The rate of adsorption was investigated under various parameters such as size of adsorbent, contact time of solution with adsorbent, temperature, pH, adsorbent dose and stirring speed for the removal of this dye. Langmuir isotherm was also applied to evaluate maximum adsorption capacity of rice husk for Murexide. On the basis of results obtained, it is proposed that rice husk can be effectively used for the elimination of Murexide from waste water. 2011-08-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/19846 Title: Phytoremediation of Pb(II) by Jasminum sambac Authors: NASIRA PERVEEN; MUHAMMAD ASIF, HANIF; SHAMAILA NOUREEN; TARIQ MAHMOOD, ANSARI; HAQ NAWAZ, BHATTI Abstract: Experiments were conducted to asses Pb(II) bioaccumulation in Jasminum sambac cultivated in a green house under controlled conditions. For this purpose Jasminum sambac plants were cultivated and irrigated with industrial wastewater contaminated with Pb(II). After an interval of 10 days for maximum 50 days Jasminum sambac plants were removed and analyzed for Pb(II) concentration in various parts. The Pb(II) accumulation was observed in soil and in different parts of plant e.g. leaves, stem, roots and flowers. The Pb(II) accumulation was found dependent on soil pH and Pb(II) in concentration in industrial wastewater. Jasminum sambac was found to be Pb(II) hyper-accumulator plant. The maximum amount of Pb(II) detected in soil, leaves, stem, root, and flowers was 1742±3, 825±7, 339±5 508±8, and 3.98±0.1 mg/kg, respectively after 50 days. Very low quantity of Pb(II) was accumulated in Jasmine sambac flowers suggesting that its flowers still can be used. 2011-08-20T00:00:00Z http://localhost:80/xmlui/handle/123456789/19845 Title: FACILE SYNTHESES OF BIOACTIVE 5-ARYLIDENETHIOBARBITURIC ACIDS Authors: Ahsan Sharif; Ejaz Ahmad; Munawar Ali Munawar; Shamsa Jabeen; Misbah-ul-Ain, Khan; Robina Begum; Aleeza Farrukh; Muhammad Ashraf; Shafia Arshad; Nighat Afza Abstract: A simple and green chemistry route for the preparation of 5- arylidenethiobarbituric acids has been developed by Knoevenagel condensation of thiobarbituric acid with different aromatic and heteroaromatic aldehydes using catalytic amount of acetic acid by grinding in mortar and pestle. The title compounds were obtained in good to high yields (50-89%) and characterized by IR, NMR, mass spectroscopy and elemental analysis. All compounds exhibited DPPH radical scavenging and antibacterial activities, respectively. 2011-08-20T00:00:00Z