Autor: Ayoub, Mohamed - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Alternating Aerobic and Anoxic Conditions to Eliminate Sludge Accumulation in the Oxidation Ditch System
Autorzy:: El-Morsy, Ahmed
Ayoub, Mohamed
Powiązania:: https://bibliotekanauki.pl/articles/24201600.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated sludge
denitrification
nitrification
oxidation ditch
sludge accumulation
upgrade
wastewater treatment
Opis:: The purpose of the present study is to investigate the performance of an upgraded oxidation ditch (OD) system, which was designed and implemented to solve the problem of sludge accumulation at the bottom as well as to get the best removal efficiency of total nitrogen (TN). The upgrading concept is based on dividing the operating volume of the upgraded OD to achieve interchanging between aerobic and anoxic circumstances in order to provide simultaneous nitrification and denitrification (SND). The obtained results indicated that the average TN removal efficiency was 60%, which could be obtained due to a highly efficient SND approach. In addition, the better TN removal efficiency corresponds to the lower sludge volume index (SVI), which reflects the efficiency of the upgraded OD in preventing the accumulation of sludge at the bottom. Effluent ammonium-nitrogen (NH4+-N) and nitrate (NO3--N) concentrations corresponding to a minimum SVI of 41.9 mL/g were 8.6 mg/L for NH4+-N and 8.6 mg/L for NO3--N, respectively. Furthermore, the upgraded OD successfully removes 5-day biochemical oxygen demand (BOD5), chemical oxygen demand (COD), and total suspended solids (TSS) below the permissible limit for final effluent of 60, 80, and 50 mg/L respectively.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 304--314
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Applying the Wastewater Quality Index for Assessing the Effluent Quality of Recently Upgraded Meet Abo El-koum Wastewater Treatment Plant
Autorzy:: Ayoub, Mohamed
El-Morsy, Ahmed
Powiązania:: https://bibliotekanauki.pl/articles/1838434.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: assessment
evaluation
multiple linear regression
quality
wastewater
WWTP
wastewater treatment plant
Opis:: The wastewater quality index (WWQI) can be defined as a single value, which reflects the overall wastewater quality related to its input constituent parameters. The major objective of the present study was to investigate the suitability of the effluent quality from Meet Abo El-koum wastewater treatment plant in Egypt for safe disposal based on the wastewater quality index approach. Moreover, statistical analysis was applied to develop a simple model using multiple linear regression (MLR) for accurate prediction of WWQI depending on different wastewater quality parameters. The results indicate good quality of the treated wastewater for safe disposal in general. Moreover, it is apparent that about 17% of the WWQI values reached excellent quality referring to the classification of the WWQI levels. For greater simplicity, a relationship between BOD5 and COD was deduced using linear regression, so that the results of the BOD5 analyses that appear after five days can be skipped. This approximation can be used to calculate WWQI on a specific day given the results of the treated wastewater analyses on that day.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 128-133
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Treatment of Surface Treatment Effluents by Electrocoagulation Process Using Aluminium Electrodes
Autorzy:: Namoussi, Soukaina
Merbouh, Chaimaa
Kabriti, Mohamed
Nahli, Abdelmottalib
Naamane, Ayoub
Chlaida, Mohamed
Iounes, Nadia
Powiązania:: https://bibliotekanauki.pl/articles/2025816.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: electrocoagulation
aluminium electrode
surface treatment
effluent
pollutant
Opis:: The surface treatment industry generates effluents with a high load of highly toxic chemicals which must be treated under increasingly stringent regulation. The aim of this study was to treat the effluents of surface treatment unit of an aeronautical industry by the electrocoagulation process using aluminium electrodes. This process is used to study the performance to remove colloidal load, significant amount of oxidizable material and high levels of various metal elements (Cr, Fe, Zn, Cu and Al) from these effluents, under optimum conditions of pH 7, 8.6A of current intensity and 60 min of application. The electrocoagulation process was found to be effective in reducing turbidity (97.12%), COD (97.5%), SS (97.84%) and conductivity (96.82%), hexavalent chromium (99.99%), Zn (96.82%), Cu (94.3%), Iron (99.9%), Al (91.96%). The treated effluent conformed to the Moroccan standards of surface treatment discharge.
Źródło:: Journal of Ecological Engineering; 2022, 23, 1; 91-99
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Physico-Chemical Characterization of an Urban Wastewater Effluent and its Impact on the Receiving Environment: Oued Nfifikh (Morocco)
Autorzy:: Merbouh, Chaimaa
Namoussi, Soukaina
Kabriti, Mohamed
Naamane, Ayoub
Rihane, Abdeslam
Iounes, Nadia
Powiązania:: https://bibliotekanauki.pl/articles/2068481.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Oued Nfifikh
water stream
wastewater
physicochemical quality
pollution
Opis:: Oued Nfifikh is among the least studied Moroccan rivers. Thus, the primary aim of this study was to shed light on the quality of this undervalued stream. Its downstream part is affected by one of the most crucial environmental issues. It receives the discharges of wastewater evacuated precariously without prior treatment, which might lead to the degradation of the overall ecological status of this fluvial hydrosystem. This research work aimed to study the physicochemical water quality downstream the river Nfifikh through a monthly monitoring of the physicochemical parameters’ indicator of pollution, from August 2018 to July 2019. The results obtained show that the stream is exposed to high pollution which is mainly organic. Consequently, the wastewater represents a major cause of water quality degradation of this receiving environment: ecological and health impacts are therefore to be expected.
Źródło:: Journal of Ecological Engineering; 2022, 23, 3; 183--193
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Synthesis and Characterization of Slag-Sludge-Based Eco-Friendly Materials – Industrial Implications
Autorzy:: Lagrani, Saadia
Aziz, Ayoub
Bellil, Abdelilah
Felaous, Khadija
Achab, Mohammed
Fekhaoui, Mohamed
Powiązania:: https://bibliotekanauki.pl/articles/2202346.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: geopolymer mortar
non-incinerated sewage sludge
blast furnace slag
construction material
Opis:: Currently in Morocco, wastewater treatment plants (WWTPs) generate huge quantities of sludge from wastewater treatment. This sludge is a real concern for the environment. No regulatory text takes into account the future and management of sludge, its use in agriculture is not officially authorized and the solutions currently implemented for its elimination or recovery are done on an ad hoc basis and pose a number of difficulties for operators. The objective of the present study is to investigate the stabilization and solidification of a geopolymer based on sewage sludge and blast furnace slag (slag), as well as the possibility to use this geopolymer as a thermal insulation material. The sludge used comes from the AIN AOUDA-activated sludge type WWTP, the collected sludge is dehydrated and stabilized by slaked lime (Ca(OH)2) in the sludge treatment process. The blast furnace slag (slag) came from the plant in France. Four samples were prepared by substituting the slag with quantities (10 to 40%) of limed sludge, a quantity of sand, and a solution of sodium silicate and sodium hydroxide used as an alkaline activator. The effect of limed sludge on the physicochemical and microstructural properties of the synthesized geopolymers was evaluated using several analytical techniques, such as compressive strength, P-wave velocity, density and porosity tests, and X-ray diffraction. The results showed that the addition of 10 to 40% of limed sludge resulted in a progressive decrease in the compressive strength of the synthesized geopolymer and an increase in the thermal conductivity, which allows the use of the synthesized geopolymer as a material.
Źródło:: Journal of Ecological Engineering; 2023, 24, 1; 227--238
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Ayoub, Mohamed" wg kryterium: Autor

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język