Autor: Ali, Mohd - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Investigation on Productivity Enhancement of a Solar Still with Transparent Polythene Film Cover and Cylindrical Hollow Fins for Heat Storage
Autorzy:: Riahi, Ali
Zakaria, Nor Azazi
Isa, Mohamed Hasnain
Zainol, Mohd Remy Rozainy Mohd Aref
Mahinder Singh, Balbir Singh
Shaharuddin, Syafiq
Yusof, Mohd Fazly
Powiązania:: https://bibliotekanauki.pl/articles/1839550.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: cylindrical hollow fin
solar still
polythene film
potable water production
Opis:: This paper discussed the experimental performance of a solar still with cylindrical hollow fins that were integrated to a black painted stainless-steel basin. The cover of the solar still was made of transparent polythene film, while the frame was made of polyvinyl chloride (PVC). Mild steel cylindrical hollow pipes of 0.035 m diameter were used as fins in the solar still. The performance of this solar still (PSSCHF) was compared with the performance of a conventional solar still (PSS1) which was made of similar fabrication materials, but without using fins in its basin. Each solar still basin contained water with the depth of 1 cm that was collected from a pond located at the Universiti Sains Malaysia (USM) campus. Both PSSCHF and PSS1 solar stills were exposed to similar climatic conditions within the same locality at USM during the experiments. The purpose of using the fins in the basin of PSSCHF was to absorb more heat from solar irradiance. The PSSCHF attained a maximum productivity of 4.49 l/m2•d, whereas the PSS1 obtained a maximum water production of 3.97 l/m2•d. The quality of fresh water produced from the solar stills met the World Health Organization potable water standards.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 95-103
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Tytuł:: Effects of Fish Stocking Density on Water Quality, Growth Performance of Tilapia and Yield of Butterhead Lettuce Grown in Decoupled Recirculation Aquaponic Systems
Autorzy:: Al Tawaha, Abdel Razzaq
Wahab, Puteri Edaroyati Megat
Jaafar, Hawa Binti
Zuan, Ali Tan Kee
Hassan, Mohd Zafri
Powiązania:: https://bibliotekanauki.pl/articles/1839576.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: decoupled aquaponics system
stocking density
tilapia
butterhead lettuce
Lactuca sativa
Opis:: This study was conducted over a period of 52 days to determine the effects of fish stocking density on the water quality, growth performance of tilapia and yield of butterhead lettuce cultivated in decoupled recirculation aquaponic systems (DRAPS). In this study, three respective tilapia stocking densities (treatments) of 8 kg•m-3, 10 kg•m-3, and 12 kg•m-3 were used to evaluate the butterhead lettuce in the DRAPS, which consist of two independent loops. All treatments were done in triplicates. The results showed with increased stocking density, the electrical conductivity, total dissolved substances and salinity increased and dissolved oxygen decline. The results showed that the highest stocking density produced the highest nutrients accumulation of ammonia-nitrogen (NH3-N), ammonium (NH4), nitrite-nitrogen (NO2-N) and nitrate-nitrogen (NO3-N) and potassium (K) except for phosphorus (P). Nevertheless, based on the conversion of fish feed to NO3-N and P per kilogram of feeds, the lowest stocking density provided the highest concentration of NO3-N and P. It was documented that DRAPS relied solely on the fish waste produced an insufficient concentration of N, P, K and iron. The average survival rate of tilapia in all treatments was above 94% and was not a significant difference among the treatments.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 8-19
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Simultaneous Adsorption of Ternary Antibiotics (Levoﬂoxacin, Meropenem, and Tetracycline) by SunFlower Husk Coated with Copper Oxide Nanoparticles
Autorzy:: Ibrahim, Mohammed A.
Shaban, Mohammed Ali A.
Hasan, Yaseen Rashid
M-Ridha, Mohanad J.
Hussein, Haitham A.
Abed, Khalid M.
Mohammed, Sabah J.
Muhamad, Mohd Hafizuddin
Hasan, Hassimi Abu
Powiązania:: https://bibliotekanauki.pl/articles/2105287.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: adsorption
antibiotics
neural network
wastewater
sustainable process
Opis:: In this study, a new adsorbent derived from sunflower husk powder and coated in CuO nanoparticles (CSFH) was investigated to evaluate the simultaneous adsorption of Levofloxacin (LEV), Meropenem (MER), and Tetracycline (TEC) from an aqueous solution. Significant improvements in the adsorption capacity of the sunflower husk were identified after the powder particles had been coated in CuO nanoparticles. Kinetic data were correlated using a pseudo-second-order model, and was successful for the three antibiotics. Moreover, high compatibility was identified between the LEV, MER, and TEC, isotherm data, and the Langmuir model, which produced a better fit to suit the isotherm curves. In addition, the spontaneous and exothermic nature of the adsorption process was crucial for transforming the three antibiotics into CSFH. The greatest CSFH adsorption capacity was in MER (131.83 mg/g), followed by TEC (96.95 mg/g), and LEV (62.24 mg/g). These findings thus indicate that CSFH is one of the most effective and efficient adsorbents to use for eliminating wastewater contaminated with antibiotic residue.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 30--42
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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