University of Khartoum

Modeling the Effect of Petroleum Produced Water on Jatropha Curcas L. Growth at Nursery Stage

Modeling the Effect of Petroleum Produced Water on Jatropha Curcas L. Growth at Nursery Stage

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Title: Modeling the Effect of Petroleum Produced Water on Jatropha Curcas L. Growth at Nursery Stage
Author: El-Zaki, Yousra Hayder Mohammed; Ebrahim, Ola Abd-Allah Al-Obeid; Ahmed, Leena Siddig Mohammed
Abstract: Although Jatropha Curcas L., an important tropical and sub tropical bio-fuel crop, is reputed for withstanding high temperatures, drought and varied pH levels, its ability to perform when watered with petroleum produced water has hardly been investigated. The objective of this study was to examine the characteristics of the Produced Water samples obtained, and to determine the effect of crude oil and NaCl concentrations on Jatropha Curcas L. growth parameters such as, stem height, stem diameter and number of leaves, under Khartoum state conditions. The experimental treatments were simulated saline water of five levels in concentration (ml/l) in combination with five different levels of crude oil concentrations (ml/l). Chemical analysis showed that the different constituents in the samples obtained contained highest levels of sodium (Na), 1562 ppm, potassium (k), 79.15 ppm and salinity concentration of 2.80 (g/l). No oil and grease were detected in the samples. There was a proportional relation between the stem height and salt concentration, but the oil concentration had a negative relationship with the stem height. The germination percentage was found to be (57.3%) after 10 days from sowing the seeds. The highest stem height recorded during the experiment was an average of 14.1 cm, with water of 0.392 ml/l of crude oil and 2.152 ml/l of NaCl. Descriptive statistics showed that the highest mean height was (12.47) cm treated with simulated produced water of (1.176) ml/l of crude oil and (5.380) ml/l of NaCl. The lowest mean height was (0.00) cm treated with simulated produced water of (1.568) ml/l of crude oil and (2.152) ml/l of NaCl salt.
URI: http://khartoumspace.uofk.edu/handle/123456789/19114
Date: 2014


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