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Wyszukujesz frazę "Palm oil" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Optimization of fresh palm oil mill effluent biodegradation with Aspergillus niger and Trichoderma virens
    Autorzy:
    Jalaludin, N.
    Rahman, R. A.
    Razali, F.
    Barghash, H. F. A.
    Sukri, S. S. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/204704.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Aspergillus niger
    optimization
    POME
    palm oil mill effluent
    Trichoderma virens
    Opis:
    In this work, response surface optimization strategy was employed to enhance the biodegradation process of fresh palm oil mill effluent (POME) by Aspergillus niger and Trichoderma virens. A central composite design (CCD) combined with response surface methodology (RSM) were employed to study the effects of three independent variables: inoculum size (%), agitation rate (rpm) and temperature (°C) on the biodegradation processes and production of biosolids enriched with fungal biomass protein. The results achieved using A. niger were compared to those obtained using T. virens. The optimal conditions for the biodegradation processes in terms of total suspended solids (TSS), turbidity, chemical oxygen demand (COD), specific resistance to filtration (SRF) and production of biosolids enriched with fungal biomass protein in fresh POME treated with A. niger and T. virens have been predicted by multiple response optimization and verified experimentally at 19% (v/v) inoculum size, 100 rpm, 30.2°C and 5% (v/v) inoculum size, 100 rpm, 33.3°C respectively. As disclosed by ANOVA and response surface plots, the effects of inoculum size and agitation rate on fresh POME treatment process by both fungal strains were significant.
    Źródło:
    Archives of Environmental Protection; 2016, 42, 1; 63-73
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Improving the Quality of Anaerobically-Pretreated Palm Oil Mill Effluent Using Electrocoagulation
    Autorzy:
    Sailah, Illah
    Reyhanto, Fathan
    Puspaningrum, Tyara
    Romli, Muhammad
    Suprihatin, Suprihatin
    Indrasti, Nastiti Siswi
    Powiązania:
    https://bibliotekanauki.pl/articles/1839577.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    aluminum electrodes
    electrocoagulation
    empirical model
    palm oil mill effluent
    POME
    pollutant removal
    Opis:
    The palm oil extraction process generates large amounts of effluents with very high concentrations of pollutants, even though they are subjected to anaerobic pretreatment. Further treatment is needed in order to ensure that the effluent is safe for disposal or reuse. This work was conducted to evaluate the performance of an electrocoagulation process in removing pollutants from the anaerobically-pretreated palm oil mill effluent. A 1000 ml beaker glass equipped with a magnetic stirrer was used as an electrocoagulation reactor with four plates of aluminum electrode @ 12×2 cm and an effective area of 0.1 m2 arranged in a bipolar configuration. The experiments run in a batch mode were carried out at various voltage levels and contact times, namely 10, 15, and 20 V for 15, 30, 45 and 60 min. The level of pollutant removal and electrical energy consumption were determined. The electrocoagulation process at 15 V for 30 min produced the highest level of pollutant removal for TSS, turbidity, color, COD, and BOD5, i.e. 90%, 86%, 93%, 87%, and 97%, respectively. The estimated operating costs for these process conditions are 1.48 USD/m3. A second order empirical model was developed to describe the TSS removal in the POME electrocoagulation process. The electrocoagulation with aluminum electrodes can significantly reduce various types of pollutants of anaerobically-pretreated POME, such as TSS, turbidity, color, COD, and BOD5. The estimated cost of EC operation is cheaper than the chemical coagulation process.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 1; 112-124
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effectiveness of gas recovery systems for managing odour from conventional effluent treatment ponds in Palm oil mills in Malaysia
    Autorzy:
    Chung, Andrew Yap Kian
    Qamaruz Zaman, Nastaein
    Yaacof, Narushikin
    Yusoff, Syafinah
    Abd Manaf, Fatah Yah
    Mohamed Halim, Rohaya
    Abd Majid, Rusnani
    Powiązania:
    https://bibliotekanauki.pl/articles/396236.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    gas recovery systems
    palm oil mill effluent
    palm oil mills
    effluent treatment
    anaerobic ponds
    reduce odour
    reduced gas emission
    systemy odzyskiwania gazu
    ścieki palmowe
    olejarnie palmowe
    oczyszczanie ścieków
    stawy beztlenowe
    redukcja zapachów
    redukcja emisji gazów cieplarnianych
    Opis:
    Gas recovery systems at palm oil mills enable the curtailment of uncontrolled greenhouse gas emissions from open anaerobic pond, but can also reduce odour, an aspect which has not yet been substantiated. The objective of this study is to evaluate the odour emission from palm oil mill effluent and the effectiveness of covers and tank digester in reducing odour emission from the open lagoons. Odour samples were obtained from the cooling ponds in conjunction with in-field odour assessment performed on site. Results demonstrated that odour released from open ponding or covered lagoon were almost comparable, ranging from 33,150 – 162,000 OU/m3, and 68,705 – 102,000 OU/m3, respectively. In contrast, odour emission from cooling pond which used tank digester system seemed markedly lower, ranging between 13,000 – 76,000 OU/m3. In fact, the analysis of ambient air close to anaerobic tank digesters proved a reduction of odour emission to the surroundings (with 3.5 OU/m3, weak intensity) compared to open pond (with 2700 OU/m3, strong intensity) or covered lagoon (with 111 OU/m3, distinct intensity). In conclusion, gas recovery systems at palm oil mills should be promoted not only towards the management of greenhouse gaseous, but also as an odour impact management strategy.
    Źródło:
    Civil and Environmental Engineering Reports; 2019, 29, 3; 70-85
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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