Autor: NI. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Isolation and Characterization of Schmutzdecke in Slow Sand Filter for Treating Domestic Wastewater
Autorzy:: Ni'matuzahroh
Fitriani, Nurina
Nuswantara, Eka Narendra
Affandi, Mochammad
Prasongsuk, Sehanat
Kurniawan, Setyo Budi
Powiązania:: https://bibliotekanauki.pl/articles/2202214.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: heterotrophic bacteria
biofilm
schmutzdecke
slow sand filter
Opis:: This research aimed to discover the macroscopic, microscopic, and physiological characteristics and the genus of heterotrophic bacteria found in the schmutzdecke or biofilm layer in slow sand filters. The isolation of heterotrophic bacteria in the schmutzdecke applied the pour plate and quadrant streak method, while the characterization used macroscopic, microscopic, and physiological tests. Samples were taken from the schmutzdecke on top of the filter layer, and they were diluted 3, 4, and 5 times, then grown in Nutrient Agar media in order to isolate heterotrophic bacteria. The results of the research were analyzed using the identification manual books titled Bergey’s Manual of Determinative Bacteriology, 9th edition and Manual for The Identification of Medical Bacteria, 3rd edition. These manuals show the names of the genus of bacteria in the schmutzdecke layer. On the basis of the identification results from macroscopic, microscopic, and physiological tests, there were 4 dominant genera out of 18 living isolates obtained from the schmutzdecke layer, namely Kurthia gibsonii, Bacillus badius, Bacillus firmus, and Bacillus lentus. The similarity percentage of these 4 isolates was 83%, 81%, 85%, and 77% respectively.
Źródło:: Journal of Ecological Engineering; 2022, 23, 11; 76--88
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Performance of Intermittent Slow Sand Filter Processing Units in Treating Food Court Wastewater
Autorzy:: Fitriani, Nurina
Mohamed, Radin Maya Saphira Radin
Affandi, Moch.
Nurdin, Rafly Rizqullah
Kurniawan, Setyo Budi
Ni'matuzahroh
Powiązania:: https://bibliotekanauki.pl/articles/24201671.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: Anadara granosa
environmental pollution
FOG
intermittent slow sand filter
response surface methodology
TDS
TSS
turbidity
Opis:: This study aimed to determine the performance of modified slow sand filter (SSF) media with blood clam shells (Anadara granosa) and activated carbon to remove turbidity, TSS, TDS, and FOG on the food court wastewater. The concentration of water pollutant parameters processed by SSF was determined based on Indonesia water quality standards, as well as knowing the optimum operational parameters of intermittent slow sand filter with Response Surface Methodology (RSM). The research data was processed using the Optimal type (custom) design which consisted of independent factors including the type of filter media, the addition of bacteria to the grease trap pre-treatment unit, and running time, as well as the research response in the form of the effectiveness of removing turbidity, TSS, TDS, and FOG. The reactor was operated intermittently (48 hours) for a maximum of 22 days and the concentration of pollutant parameters was calculated using the Standard Methods. The results of the Analysis of Variance (ANOVA, p<0.05) in the 2FI model of the study showed that there was a significant effect of all independent factors on the effectiveness of removing all water pollutant parameters. The most optimal operational parameters were achieved with the type of activated carbon media, the addition of Bacillus sp. in the grease trap pre-treatment unit in the amount of as much as 1%, and the detention time of 4 days, with the effectiveness of removing turbidity reaching 39.53%; TSS 45.25%; TDS 19.30%; FOG 61.35%.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 117--139
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Optimization of Slow Sand Filtration for the Raw Municipal Wastewater Treatment by Using the Blood Cockle (Anadara granosa) Shell as an Alternative Filter Media through the Response Surface Methodology
Autorzy:: Fitriani, Nurina
Ni'matuzahroh
O'Marga, Timothy Tjahja Nugraha
Radin Mohamed, Radin Maya Saphira
Wahyudianto, Febri Eko
Imron, Muhammad Fauzul
Isnadina, Dwi Ratri Mitha
Soedjono, Eddy Setiadi
Powiązania:: https://bibliotekanauki.pl/articles/2105267.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: domestic wastewater
response surface methodology
slow sand filter
total coliform
Opis:: This research aimed to investigate the optimum conditions of slow sand filter (SSF) media modification by using ground Anadara granosa shell waste and the effect of the ripening period on the total coliform (TC) removal efficiency. The response surface methodology with the central composite design was conducted with three factors, namely, seeding time (2–3 weeks), running time (0–20 days), type of SSF media (i.e., river sand, A. granosa shell, and their combination), as independent variables. The results showed that the ripening period factor interacted insignificantly by improving the TC removal efficiency due to short ripening time (p > 0.05). The optimum conditions of the SSF to achieve maximum TC removal efficiency (99.70 ± 21.50%) were as follows: combination media of river sand and ground A. granosa shell waste, 2.8 weeks (20 days) of ripening period, and 20 days of operation. In conclusion, the optimum operating parameters of the slow sand filter revealed that the combination of river sand and A. granosa shell as well as prolonged ripening and running times could increase the removal efficiency of TC. Hence, the A. granosa shell has good application potential as filter media to remove TC from the municipal wastewater.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 100--111
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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