ORIGINAL_ARTICLE
REMOVAL EFFICIENCY OF COD, BOD, OIL AND GREASE AND TSS FROM INDUSTRIAL WASTEWATER BY USINGELECTRO-COAGULATION
The wastewater treatment becomes more necessity. A cheap and more effectively methods for treating liquid waste before discharging it into any other water systems is required. A lot of wastewater technologies are known which include physicochemical treatment processes and biological treatment processes .This technique depend on electrochemical technology which being improved and developed to minimize the addition of chemicals. This study was aiming to investigate the efficiency of the electro-coagulation technique for removal of COD, BOD, Oil and Grease and TSS from Industrial Wastewater from Meat and Slaughterhouse industry in Tanta, Gharbeya, Egypt. Electro-coagulation is depend on passing of an electrical current (DC current) through a liquid, using an anode electrode and cathode electrode. In present study mixed electrodes of iron and aluminum are used and under the optimum condition of current density = 20 mA/cm2, distance between electrodes = 5 cm and retention time = 40 min. It maximum removals efficiency of COD, BOD, TSS, and oil & grease were 96.6%, 96%, 94.5%, 98.1% respectively.
https://absb.journals.ekb.eg/article_67884_b2f0d4022401c576ddb2c426815159b3.pdf
2019-06-01
1
8
10.21608/absb.2019.67884
Biochemical oxygen demand
electro-coagulation
iron and aluminum electrodes, chemical oxygen demand
Mostafa
Emara
scdrh@yahoo.com
1
Chemistry Department, Faculty of Science , Al - Azhar University , Cairo , E gypt
AUTHOR
Nazik
Farid
nazik.abdelazi@yahoo.com
2
Egyptian Petroleum Research Institute (EPRI) Cairo, Egypt
AUTHOR
Abdelatty
Eltalawy
bestbedo_2011@yahoo.com
3
Master student in Chemistry Department, Faculty of Science . Al - Azhar Uni versity , Cairo, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
STUDIES ON THE WASTEWATER TREATMENT USING MODIFIED DOWN FLOW HANGING SPONGE (DHS) PILOT AND ITS APPLICATION
In this paper the Modified Down Flow Hanging Sponge (DHS) reactor will be a good water treatment technology in the near future. It was used for excellent removal of notorious heavy metals, organic pollutants and harmful microbes. The reactor has advantages like low cost, ease of use and satisfaction level. In order to achieve these objectives, treatment scheme has been investigated. It consists of mixing a chelator with wastewater in different concentrations followed by a Down flow hanging sponge (DHS) reactor. The residual values of heavy metals are (Mn)amount decreases from 1 ppm to zero ppm (100%) after 60 min.,(Fe)decreases from 0.997 ppm to zero ppm (100%) after 60 min. (Cd) decreases from 0.901 ppm to zero ppm (100%) after 60 min. (Cu)decreases from 1.1 ppm to zero ppm (100%) after 60 min. (Pb)decreases from 1.004 ppm to zero ppm (100%) after 60 min. (Ni)decreases from 0.922 ppm to 0 ppm (100%) after 60 min. The results show that removals of fecal coliforms were achieved. From the results of DHS effluent, fecal coliforms decreased from 5.2x106 to 200 and the overall removal efficiency of fecal coliforms is (99.99%) at 37Co.
https://absb.journals.ekb.eg/article_67886_350791817c90722a762267cc55e8e33a.pdf
2019-06-01
9
20
10.21608/absb.2019.67886
DHS reactor
chelator
heavy metal
fecal coliforms
M .
Wasel
1
Chemistry D epartment, Faculty of Scien ce ,Al - Azhar University , Cairo, Egypt
AUTHOR
R .
Farg
2
Chemistry D epartment, Faculty of Scien ce ,Al - Azhar University , Cairo, Egypt.
LEAD_AUTHOR
A .
El - Tabl
3
Chemistry D epartment, Faculty of Science, Menoufia University , Menoufia , Egypt
AUTHOR
A .
Mahmoud
4
Chemistry D epartment, Faculty of Scien ce ,Al - Azhar University , Cairo, Egypt
AUTHOR
A .
Radwan
5
Sector Head of Laboratories in Qaluobia , Company for Water and Wastewater
AUTHOR
K .
Sarhan
6
Chemistry D epartment, Faculty of Science, Menoufia University , Menoufia , Egypt
AUTHOR
A .
Ezzat
7
Chemistry D epartment, Faculty of Scien ce ,Al - Azhar University , Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
COMPARATIVE ANALYTICAL STUDY OF POLYISOBUTYLENE SUCCINIC ANHYDRIDE-MODIFIED TRIETHANOLAMINE EMULSIFIER
An analytical comparative study was performed between the prepared emulsifiers polyisobutylene succinic anhydride (PIBSA) and the commercial LZ2735 and LZ2745 materials. The PIBSA-1, -2 and PIBSA/TEA were prepared by reacting the reactive polyisobutene (PIB) with maleic anhydride via isothermal heating at 250°C for 10 h. Then, PIBSA was heated with triethanolamine at 80°C for 2 h to give PIBSA/TEA. The structures of the prepared PIBSA-1, PIBSA-2, PIBSA/TEA, PIBSA/TEA-1, PIBSA/TEA-2, LZ2735 and LZ2745 were characterized by FTIR, 1H-, 13C-NMR spectroscopy and Gel permeation chromatography (GPC). The FTIR spectra of PIBSA-1 and -2 showed absorption carbonyl bands at 1711 and 1783 cm-1 due to carbonyl anhydride stretching vibrations of the succinic anhydride (SA), whereas a relevant band appeared at 1732 cm-1 for LZ2735 and LZ2745. PIBSA/TEA was identified by a hump of amine group around 3351 cm-1. 13C-NMR of the PIBSA-1 and -2 indicated signals at δ 57.6 and 59.5 ppm. The GPC showed polydispersity index which used as a measure of the broadness of a molecular weight distribution of our samples together with the presence of a significant amount of number average molecular weight (Mn). The amber colored products were viscous and the prepared emulsions were used for blending the emulsion explosives, detergents, cosmetics, paintings to remove lead from polluted waste water.
https://absb.journals.ekb.eg/article_67888_34243ddc9961c4b43253b4fff531c343.pdf
2019-06-01
21
35
10.21608/absb.2019.67888
PIBSA
NMR
FTIR
GPC
MP-AES
Rabie
Farag
rabiefarag191@yahoo.com
1
Department of Chemistry , Faculty of science, Al - Azhar University, Cair o, Eg ypt .
AUTHOR
Hosni
Gomaa
hosniag@yahoo.com
2
Department of Chemistry , Faculty of science, Al - Azhar University, Cair o, Eg ypt
AUTHOR
Hassan
Helal
h.d.helal3@gmail.com
3
Department of Chemistry , Faculty of science, Al - Azhar University, Cair o, Eg ypt
LEAD_AUTHOR
Sherif
Mostafa
sherif_1975_2012@hotmail.com
4
Central Laboratory of Analytical Chemistry, Ministry of Defense , Egypt
AUTHOR
ORIGINAL_ARTICLE
Photodecontamination of Vat Green 1 and Dianix Blue dyes by MWCNTs/x%TiO2 nanocomposites synthesized using evaporation method
Study of the photocatalytic activity of multi-walled carbon nanotubes/titanium dioxide nanocomposites MWCNTs/x%TiO2 with different weight ratios of TiO2 (x = 3, 6 and 10%) synthesized using a simple modified evaporation method in decontamination of two local textile dyes (Vat Green 1 and Dianix Blue Dyes) as an industrial organic pollutants commonly used in dyeing factories was reported. The structure of the synthesized MWCNTs and MWCNTs/x%TiO2 nanocomposites with different weight ratios photocatalysts were characterized using XRD, SEM, diffused reflectance UV-Vis spectroscopic technique and N2 adsorption-desorption. Also optical band gap was estimated by Kubelka-Munk equation for MWCNTs and MWCNTs/x%TiO2 nanocomposites giving rise values 3.51, 2.89, 2.80, 2.69 eV respectively. The photodegradation of Vat Green 1 and Dianix Blue Dyes dyes in presence of MWCNTs and MWCNTs/x%TiO2 nanocomposites after complete degradation were measured using chemical oxygen demand processes and the suggested possible mechanism of the photodegradation processes of Vat Green 1 and Dianix Blue Dyes was studied.
https://absb.journals.ekb.eg/article_41771_d388f5e08d2e79a19a81c34693295017.pdf
2019-06-01
35
45
10.21608/absb.2019.13849.1014
MWCNTs/%TiO2 Nanocomposites
evaporation method
photodegradation process
Vat Green 1 Dye and Dianix Blue Dye
badr
elsayed
badrelsayed@gmail.com
1
Department of Chemistry, Faculty of Science, Al-Azhar University, Egypt
LEAD_AUTHOR
walied
mohamed
waliedfx@yahoo.com
2
Inorganic Chemistry Department – National Research Centre- Cairo, P.O. (12622) Egypt
AUTHOR
hoda
galal
hrgalal@hotmail.com
3
Inorganic Chemistry Department – National Research Centre- Cairo, P.O. (12622) Egypt
AUTHOR
hassan
abdelbary
hassanmabdelbary@yahoo.com
4
Physical Chemistry Department – Al Azhar University- Cairo, P.O. (11884) Egypt
AUTHOR
mahmoud
Ahmed
mahmoud202000@yahoo.com
5
Physical Chemistry Department – Al Azhar University- Cairo, P.O. (11884) Egypt
AUTHOR
ORIGINAL_ARTICLE
STUDY OF CORROSION INHIBITION FOR MILD STEEL IN HYDROCHLORIC ACID SOLUTION BY NEW POLYESTER DERIVATIVE (GLYPTAL)
The inhibitive impact of eco-friendly Polyester (Glyptal) on the corrosion behavior of mild steel was examined. The inhibitory impacts were considered on mild steel in 1 M hydrochloric corrosive solutions, utilizing weight loss, electrochemical estimations, and Scanning Electron Microscopy (SEM) systems. The inhibitory impact was considered by adding different concentrations of inhibitors (100, 200, 400, 500, and 1000 ppm) by weight of the solution. The corrosion of steel was inhibited ceaselessly with the amount of inhibitor added. It came to a high state of inhibition with 500 and 1000 ppm of inhibitor concentration. SEM investigation uncovered that the expansion of inhibitor impedes the consumption forms, where the inhibitor is covering the outside of the metal, so it forestalls the metal surface to be in contact with the corrosive medium.
https://absb.journals.ekb.eg/article_67892_34f0cd4036b5c60fa5bcc00b339051fa.pdf
2019-06-01
47
54
10.21608/absb.2019.67892
Corrosion
mild steel
polyester
glycerol
Seham
Shahen
shahen.seham@yahoo.com
1
Department of Chemistry, Faculty of Science, Al - Azhar University, Cairo, Egypt
LEAD_AUTHOR
ORIGINAL_ARTICLE
IMPACT OF NANOSIZED SILICA ON THE PHYSICO-MECHANICAL PROPERTIES AND CORROSION PROTECTION OF CONCRETE
Nanomaterials have an important role for enhancingthe concrete properties and inhibition of rebar corrosion in reinforced concrete. Nanosilica (NS) is one of the most effective cementitious materials, which possess high pozzolanic nature. In this work, NS was added in mix design of concrete with different ratios as; 0, 0.5, 1, 1.5, 2and 2.5 % by weight of Portland cement. Physical, mechanical properties (workability, density) were determinedfor the fresh concrete samples. While, compressive strength andmicrostructural properties of the interfacial transition zone (ITZ) between cement pastes and aggregates of concrete were investigatedfor the hardened samples.As well as electrochemical measurements (open circuit potential and linear polarization) were done for the reinforced concrete samples. The results show that, concretes containing NS up to 2% have a higher compressive strength and a denser in interfacial transition zone (ITZ). Also, corrosion inhibition for reinforced concrete increased gradually by increasing NS addition up to 2%.
https://absb.journals.ekb.eg/article_67893_4d8012b937614797e1ed16466640948f.pdf
2019-06-01
55
66
10.21608/absb.2019.67893
Concrete
nanosilica
corrosion of reinforced concrete
Elsayed
Elnaggar
elsayed_elmhdy80@yahoo.com
1
Department of Chemistry , Faculty of Science - Al - Azhar Unive rsit y, Cairo, Egypt
AUTHOR
Tarek
Elsokkary
tarek_elsokkary@yahoo.com
2
Housing and Building National Research Center, Raw Building Materials Technology and Processing Research Institute, Cairo, Egypt
AUTHOR
Mostafa
Shohide
maxem505016@yahoo.com
3
Housing and Building National Research Center, Raw Building Materials Technology and Processing Research Institute, Cairo, Egypt.
LEAD_AUTHOR
Basil
El - Sabbagh
4
Housing and Building National Research Center, Raw Building Materials Technology and Processing Research Institute, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
INVESTIGATION OF BIOACTIVE CONSTITUENTS AND BIOLOGICAL ACTIVITIES OF DIFFERENT FRACTIONS FROM HERNIARIA HEMISTEMON J.GAY
This study was carried out the phytochemical screening and evaluate antibacterial, antifungal and antioxidants effects of petroleum ether (40-60 °C), diethyl ether, chloroform, ethyl acetate, ethanol 96% and ethanol 70% fractions obtained from the aerial part of Herniaria hemostimon J. Gay. Phytochemical analysis showed the presence of terpenoids, steroids, flavonoids, alkaloids, tannins and saponins in different fractions the plant. Quantitative concentration of phenols, flavonoids, alkaloids, tannins and saponins were detected. HPLC analysis of H. hemostimon identified 21 flavonoids and 21 phenolic compounds. Successive fractionation has been carried out where Di-(2-ethylhexyl) phthalate (DEHP and protocatechuic acid were isolated and identified using FT-IR, 1H-NMR and MS spectroscopic. Furthermore, the antimicrobial activity of successive extract of H. hemistemon against 5 bacterial strains and 2 fungal and yeast strains carried out by the disc diffusion method. The diethyl ether and ethyl acetate fraction showed the highest activity against all the tested bacterial and fungal strains. The ethyl acetate fraction showed the highest antioxidant activity. This study suggested that the bioactivities of H. hemistemona can be used as a source of medicinal compounds due to there's significant antioxidant and antimicrobial activities.
https://absb.journals.ekb.eg/article_67894_941c761dbe55e87a5427c3fcbd0464f3.pdf
2019-06-01
67
80
10.21608/absb.2019.67894
Herniaria hemistemon
Antimicrobial
antioxidants
HPLC
Gameel
Elhagali
1
Chemistry Department, Faculty of Science, Al - Azhar University, Cairo, Egypt
LEAD_AUTHOR
Atef
Abozeed
2
Medicinal and aromatic plants department, Desert Research Center, 11753 Matariya, Cairo, Egypt
AUTHOR
Kobisi
Abd elnaser
3
Plant protection department, Desert Research Center, 11753 Matariya, Cairo, Egypt
AUTHOR
Youssif
Youssif
4
Medicinal and aromatic plants department, Desert Research Center, 11753 Matariya, Cairo, Egypt
AUTHOR
ORIGINAL_ARTICLE
POLYVINYL CHLORIDE MEMBRANES GRAFTING WITH POLYACRYLIC ACID VIA AR-PLASMA TREATMENT
This work explores the synthesis and properties alteration of new composite membrane system based on polyvinyl chloride (PVC) grafting with polyacrylic acid (PAA) using argon (Ar) plasma. The membranes of PVC were synthesized by solution-casting method, where PAA was deposited onto PVC using dielectric barrier discharge (DBD) at atmospheric pressure with different carrier gases such as (O2, Ar, N2, air) to get the optimum condition for grafting process of acrylic acid. Physicochemical properties were investigated as function of varied carrier gas for grafting process of PAA. ATR-FTIR has provided information on details of chemical structure of membrane, while morphological changes are characterized by scanning electron microscope (SEM). Moreover, mechanical properties of the membranes were studied using tensile strength (TS). Surprising, the wettability behavior of modified PVC membrane with AA vapor (plasma polymerization) is closed to such membranes those treated with O2 plasma-AA liquid. An ultra-thin, pin hole free films of PAA were deposited onto PVC membranes leading to the increase of the wettability feature of the membranes. Meanwhile, ion exchange capacity (IEC) of such membranes was investigated by volumetric method and it is directly dependent on the electrochemical properties of membranes. The IEC values in case of grafting with PAA in vapor phase are promising and maybe related to the special structure of plasma deposited polymers. The grows in the electronegativity of the grafted and sulfonated membranes is an indication to the proton permeability. Therefore, such membranes may be used as polyelectrolyte membranes (PEM) in direct methanol fuel cell (DMFC).
https://absb.journals.ekb.eg/article_67895_243fed1f01946c796ca9cc28a2539565.pdf
2019-06-01
81
89
10.21608/absb.2019.67895
polyacrylic acid
grafting
plasma treatment
polyvinyl chloride
fuel cells
Alaa
Fahmy
alaa.fahmy@azhar.edu.eg
1
Department of Chemistry, Faculty of Science, Al - Azhar University, Cairo, Eg ypt
LEAD_AUTHOR
Mohamed
Abu - Saied
2
Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research & Technological Applications (SRTA - City), New Borg Al - Arab City, 21934 Alexandria, Egyp
AUTHOR
Nasser
Morgan
nassernm_2000@yahoo.com
3
Physics Department, Fac ul ty of Science, Al - Azhar University, Cairo, Egypt
AUTHOR
Walid
Qutop
chemistwalid1977@yahoo.com
4
Department of Chemistry, Faculty of Science, Al - Azhar University, Cairo, Eg ypt
AUTHOR
Hassan
Abdelbary
5
Department of Chemistry, Faculty of Science, Al - Azhar University, Cairo, Eg ypt
AUTHOR
ORIGINAL_ARTICLE
MORINGA-TiO2 NANO COMPOSITE (MT2) FOR REMOVAL OF METHYLENE BLUE (MB) AND METHYL ORANGE (MO) DYES FROM THEIR AQUEOUS SOLUTIONS
Removal and/or degradation of dyes existing in water samples were considered by so many researchers. The present work distinguishes by using a very low cost, highly available and eco- friendly materials as adsorbents. On the other hand, this work considered as unprecedented work where, this is the first time to use moringa seeds as a co-dopant to synthesize the moringa/titania bio-composite. Three different adsorbents (moringa seeds (M2), TiO2 (T2) and moringa/TiO2 nano composite (MT2)) were examined for removal of methylene blue (MB) and methyl orange (MO) dyes existing in water samples. Sol-gel method was made use for synthesis both of TiO2 and the composite. The resulted powders were characterized by scanning electron microscope (SEM) & transmittance electron microscope (TEM) micrographs, EDX, XRD, BET and IR as well. For batch method, the effect of pH, dose, shaking time as well as initial dye concentration were studied. The highest removal for MB was obtained at 10 mg/L where, removal percentages were 39, 61 and 80.5% for T2, M2 and MT2, respectively. On the other hand, the removal percentages of MO were 40.0, 52.5 and 68.4% for T2, M2 and MT2, respectively.
https://absb.journals.ekb.eg/article_67896_8fb88e20858dd1444a079acaae65e160.pdf
2019-06-01
91
103
10.21608/absb.2019.67896
Moringa
moringa/TiO2 nanocomposite
dyes
Removal
G.
Taha
1
Environmental Applications of Nanomaterials Lab., Chemistry Department, Faculty of Science,Aswan University, Aswan 81528, Egypt
AUTHOR
N.
Ibrahim
chemist_nesma@yahoo.com
2
Environmental Applications of Nanomaterials Lab., Chemistry Department, Faculty of Science, Aswan University, Aswan 81528, Egypt
LEAD_AUTHOR