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تصفح المحتوي RDA
التصفح حسب الموضوعات
التصفح حسب اللغة
التصفح حسب الناشر
التصفح حسب تاريخ النشر
التصفح حسب مكان النشر
التصفح حسب المؤلفين
تصفح الهيئات
التصفح المؤتمرات
التصفح حسب نوع المادة
التصفح حسب العلاقة بالعمل
تم العثور علي : 37
 تم العثور علي : 37
  
 
إعادة البحث

Thesis 2024.
The application of anaerobic processes has tended to be restricted to
strong industrial wastewaters. The success of anaerobic processes as a
treatment technology for high strength
- industrial wastewater has meant
that the potential of these processes for the treatment of low strength
wastewater has been evaluated. However
- one of the main challenges to
anaerobic technology remains its applicability to low-strength wastewaters
like sewage. The up-flow anaerobic sludge blanket (UASB) reactor is the
most widely and successfully used high rate anaerobic system for
wastewater treatment. The aim of the thesis is to increase the efficiency of
the system by adding conductive materials. Ecofriendly bio-adsorbents
such as Rice Straw
- Phragmites australis - and Commercial Activated
Carbon were used for chemical oxygen demand (COD) removal and
Biogas production from wastewater. Experiments using a multilevel
complete factorial design were conducted to optimize the removal
effectiveness of COD (Chemical Oxygen Demand) while minimizing the
number of experiments required. To verify the structural characteristics
- elemental composition - and the existence of various functional groups - a
characterization investigation was conducted using X-ray diffractometry
(XRD)
- Fourier Transform InfraRed spectroscopy (FTIR) - Scanning
Electron Microscopy (SEM)
- and Brunner–Emmett–Teller (BET). Batch
experimental trails were operated to determine the optimum adsorpant
material
- its optimum dose - as well as the other operational parameters - such as solution pH - inoculation concentration - and their interactions
during COD removal and Biogas production were investigated. The
maximum removal of COD (99.63%) and the biogas production (5.16 mL
biogas/mg COD removed) of Rice Straw Biochar (RSB) were at pH value
- biochar dose - and buffalo sludge dose concentration were equal to 8 - 2 g/L -
IV
and 0%
- respectively. Commercial Activated Carbon (AC) has achieved
maximum removal of COD (95.55%)
- and the biogas production (6.08 mL
biogas/mg COD removed) at pH
- biochar dose - and buffalo sludge dose
concentration were equal to 5
- 2 g/L - and 0% - respectively. The maximum
removal of COD (98.88%) and the biogas production (4.08 mL biogas/mg
COD removed) of Phragmites australis Biochar (PaB) were at pH
- biochar dose - and buffalo sludge dose concentration were equal to 5 - 2 g/L - and 0% - respectively. These results revealed that rice straw biochar can be
used as an effective and low-cost adsorbent to remove COD from
wastewater. The surface properties of rice straw biochar substantially
affect its capability of removing metal ions from wastewater
- and fourier
transform infrared spectroscopy (FTIR) spectroscopy is a great tool to
observe this surface composition. Two identical pilot-scale models
simulating “Up-flow Anaerobic Sludge Blanket” reactors (UASBs) were
built and operated continuously within the work frame of the present work
to investigate its performance and efficiency in treating buffalo
wastewater treatment. The effect of supporting media on the UASB
efficiency will be also invistgated at the field. The two UASB reactors
were operated under the same operational conditions and scenario
- the
reators operated at HRT equals 4hr and ambiaint temperature. Both R4
(conventional UASB) and R3 (modified UASB) were fed by settleled
wastewater . The condutive media was not added to R3 at the beigning. After the start-up
- the modified UASB reactor (R3) was inoculated with
rice straw biochar through an inclined pipe. Samples were collected and
analyzed periodically twice weekly. The results indicated that; For the
conventional reactor
- the maximum removal efficiency of COD - TSS - TDS - Color - and Turbidity was 79.89% - 74.04% - 80.11% - 72.72% - and
75.70%
- respectively. Cumulative biogas production reached 0.028 mL - The application of anaerobic processes has tended to be restricted to
strong industrial wastewaters. The success of anaerobic processes as a
treatment technology for high strength
- industrial wastewater has meant
that the potential of these processes for the treatment of low strength
wastewater has been evaluated. However
- one of the main challenges to
anaerobic technology remains its applicability to low-strength wastewaters
like sewage. The up-flow anaerobic sludge blanket (UASB) reactor is the
most widely and successfully used high rate anaerobic system for
wastewater treatment. The aim of the thesis is to increase the efficiency of
the system by adding conductive materials. Ecofriendly bio-adsorbents
such as Rice Straw
- Phragmites australis - and Commercial Activated
Carbon were used for chemical oxygen demand (COD) removal and
Biogas production from wastewater. Experiments using a multilevel
complete factorial design were conducted to optimize the removal
effectiveness of COD (Chemical Oxygen Demand) while minimizing the
number of experiments required. To verify the structural characteristics
- elemental composition - and the existence of various functional groups - a
characterization investigation was conducted using X-ray diffractometry
(XRD)
- Fourier Transform InfraRed spectroscopy (FTIR) - Scanning
Electron Microscopy (SEM)
- and Brunner–Emmett–Teller (BET). Batch
experimental trails were operated to determine the optimum adsorpant
material
- its optimum dose - as well as the other operational parameters - such as solution pH - inoculation concentration - and their interactions
during COD removal and Biogas production were investigated. The
maximum removal of COD (99.63%) and the biogas production (5.16 mL
biogas/mg COD removed) of Rice Straw Biochar (RSB) were at pH value
- biochar dose - and buffalo sludge dose concentration were equal to 8 - 2 g/L -
IV
and 0%
- respectively. Commercial Activated Carbon (AC) has achieved
maximum removal of COD (95.55%)
- and the biogas production (6.08 mL
biogas/mg COD removed) at pH
- biochar dose - and buffalo sludge dose
concentration were equal to 5
- 2 g/L - and 0% - respectively. The maximum
removal of COD (98.88%) and the biogas production (4.08 mL biogas/mg
COD removed) of Phragmites australis Biochar (PaB) were at pH
- biochar dose - and buffalo sludge dose concentration were equal to 5 - 2 g/L - and 0% - respectively. These results revealed that rice straw biochar can be
used as an effective and low-cost adsorbent to remove COD from
wastewater. The surface properties of rice straw biochar substantially
affect its capability of removing metal ions from wastewater
- and fourier
transform infrared spectroscopy (FTIR) spectroscopy is a great tool to
observe this surface composition. Two identical pilot-scale models
simulating “Up-flow Anaerobic Sludge Blanket” reactors (UASBs) were
built and operated continuously within the work frame of the present work
to investigate its performance and efficiency in treating buffalo
wastewater treatment. The effect of supporting media on the UASB
efficiency will be also invistgated at the field. The two UASB reactors
were operated under the same operational conditions and scenario
- the
reators operated at HRT equals 4hr and ambiaint temperature. Both R4
(conventional UASB) and R3 (modified UASB) were fed by settleled
wastewater . The condutive media was not added to R3 at the beigning. After the start-up
- the modified UASB reactor (R3) was inoculated with
rice straw biochar through an inclined pipe. Samples were collected and
analyzed periodically twice weekly. The results indicated that; For the
conventional reactor
- the maximum removal efficiency of COD - TSS - TDS - Color - and Turbidity was 79.89% - 74.04% - 80.11% - 72.72% - and
75.70%
- respectively. Cumulative biogas production reached 0.028 mL

Thesis 2023.

Book 2022
ISBN: 9789354651311

Thesis 2016

Thesis 2018.
Clinical education is the core of the nursing education curriculum. Theory and practice are related and enables students to perform effectively in clinical settings. The barriers of the practical training are identified as the factors that reduce the quality of the clinical experience. Aim: assess the barriers interfering with the performance of students in practical training of maternal and newborn health course at a technical institute of nursing. Method: Self-administered questionnaire sheet - it includes two parts: Part1: Socio-demographic characteristics such as age - and area of residence..et. Part 2: Assessment of Barriers during practical training in the lab &clinical area Part3: Observational checklist to assess the performance of students after the procedures. Result: Age of studied students ranging between 18-20. the level of studied students’ performance in perineal care skills was 24.9% satisfied - while in handling skill was 18.3% satisfied. There were statistical significance between barriers and performance for students. Conclusion: the barriers interfering with student performance at lab was inappropriate number of students to lab space and the numbers of instructor to students .Also hospital barriers the numbers of cases not enough to number of students - the physician and the nurse didn’t allows students to practice skills with patients. There were negative relationship between the barriers and the performance among students. Recommendation: recommended that open channels between technical institution of nursing and clinical training area to facilitate learning during practical training (serve the place - communication with nurses and physicians).
Keyword : practical training
- barriers - students’ performance - Maternal and Newborn Health/Safe Motherhood (Programme) - Clinical education - practical training and student performance - Factor affecting clinic education - practical training and student performance

Thesis 2022.

Thesis 2021

Articles 2020
Menoufia Nursing Journal, Vol. 5, No. 2, Nov 2020 /
   

Thesis 1996.

Thesis 1991.


من 4
 







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