المنشورات العلمية

Optimization of Calcium Carbonate Requirements in Rotary Kilns Lebda Cement Plant for Carbon Dioxide Emission Minimization

Cement industry has been one of the most carbon dioxide emissions in Libya. An optimization study has been conducted on calcium carbonate requirements in rotary kilns in Lebda cement plant. Optimization is carried out by a MATLAB computer program .The results showed that the optimum values of calcium carbonate ranged from (76 -76.5 wt%) in kiln feed, fuel consumption (8000-8200 m³/hr.) with minimum emission of carbon dioxide (690.3656- 699.8405 . Based on the results obtained from the process optimization, it is possible to minimize the CO2 emissions and reduce fuel consumption.
Mohamed A. Aldeib, Younes H.Brakes, Alsadek Ali Alguail, Ali Hussien Al-Eggiely, (12-2020)
موقع الناشر

Removal of Multi-heavy Metals from Simulated Wastewater using Hybrid Modified Carbonized Palm Shell and Rice Husk Adsorbents

It necessary to remove heavy metals from wastewater in order to comply with environmental regulations and for sake of human health and safety. The purposes of the present study was to prepare hybrid modified adsorbent from the carbonized palm shell and rice husk by physical treatment for the removal of 13 multi heavy metal component from simulated wastewater by single bed adsorption column. The Metals being studied are Cadmium, Chromium, Copper, Iron, Magnesium, Manganese, Lead, Lithium, Molybdenum, Nickel, Antimony, Vanadium and zinc. Six types of adsorbents were used for metal removal which are (100% BRH) adsorbent; (100% CPS) adsorbent , and four hybrids adsorbent prepared by mixing the blended rice husk and carbonized palm kernel shell with mixing ratios 20% , 40% , 60% , 80% wt Blended Rice Husk . The obtained results of the individual area under the graph analysis showed that cadmium, copper, lithium; vanadium elements were strongly adsorbed by hybrid adsorbents with achieved removal efficiency of 99.95%, 99.97%, 31.23%, and 89.58% with least area under the graph values of 3294.65, 2015.52, 118.231, and 115.18 respectively. As a conclusion, the mixing of blended rice husk and carbonized palm shell as hybrid adsorbent contributed to enhance the adsorption performance of cadmium, copper, lithium, vanadium, elements which demonstrated by less area under the graph values compared with pure carbonized palm shell and pure rice husk adsorbents.
Alsadek Ali Alguail, Ali Hussien Al-Eggiely, Waleed M. Omymen, (7-2020)
موقع الناشر

Removal of Everzol Orange and Supra Yellow Dyes from Simulated Wastewater Using Hybrid Modified Rice Husk and Carbonized Palm Shell Adsorbents

One of the important classes of the pollutants is dyes, once they discharge in to the water receiving bodies causes several human and environmental problems. The aim of this work was to investigate the adsorption of Everzol orange 3R (EO-D), and Supra yellow RL (SY-D) dyes from synthetic waste water using hybrid modified adsorbent from blended rice husk (BRH) and carbonized palm shell (CPS) in single layer bed column adsorption study . For this purpose, six types of adsorbents were used for dyes removal which are one unmixed rice husk (100% BRH) adsorbent ; one unmixed carbonized palm kernel shell (100% CPS) adsorbent ; and four hybrid adsorbents prepared by mixing (BRH) and (CPS) with mixing ratios 20%,40%,60%,80% wt of BRH . Each adsorbent was characterized individually by elemental analysis, BET surface area, and Field Emission Scanning Electron Microscope (FESEM). Evaluating the performance of the columns was carried out by means of removal efficiency and area under the graph analysis. The result showed that, both dyes were strongly adsorbed by 0% (BRH)) with removal efficiency of 89.7%, and 96.8%, with least area under the graph of 1282, and 1164, respectively. As a conclusion, using unmixed carbonized palm shell as adsorbent for (EO-D) and (SY-D) dyes removal showed a maximum removal efficiency with least area under the graph and mixing of rice husk with CPS as a hybrid adsorbent did not reveal any beneficial effect for increasing the removal efficiency of studied dyes
Ali Hussien Al-Eggiely, Ahmed M. Bshish , Alsadek Ali Alguail , (5-2020)
موقع الناشر

Laboratories Accreditation in North Africa

Laboratory Accreditation
Tarek Elsmuai, (9-2019)
موقع الناشر

Laboratories Accreditation in North Africa

Laboratories accreditation
(9-2019)
موقع الناشر

Laboratories Accreditation in North Africa

Laboratories accreditation
(9-2019)
موقع الناشر

Laboratories Accreditation in North Africa

Laboratories Accreditation
(9-2019)
موقع الناشر

Laboratories Accreditation in North Africa

Laboratories Accreditation
(9-2019)
موقع الناشر