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    Wyświetlanie 1-5 z 5
    Tytuł:
    Reclamation from palm oil mill effluent using an integrated zero discharge membrane-based process
    Autorzy:
    Ahmad, A. L.
    Idris, I.
    Chan, C. Y.
    Ismail, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/778766.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    palm oil mill effluent (POME)
    membrane
    wastewater
    water recycling
    carotenes
    Opis:
    This research emphasizes eloquently on membrane technology for treatment of palm oil mill effluent (POME) as it is the Malaysia’s largest and most important agro based industry. Findings established significant quality improvement with an efficient recovery of water from palm oil mill via innovative membrane application. Conventional bio-methods, whilst adhering to the Department of Environment’s (DOE) discharge regulations, produces brownish liquid which pales in comparison to the crystal clear water obtained through membrane treatment. The pre-treatment process consists of coagulation-flocculation using green environmental coagulant bases such as Moringa oleifera (MO) seeds. The ultrafiltration polyvinylidene difluoride (PVDF) and thin film composite (TFC) reverse osmosis were vital for the membrane processes. The system gave 99% suspended solids reduction in suspended solid and 78% of water present was successfully recovered. This technology guarantees water recovery with drinking water quality; meeting the US Environmental Protection Agency (USEPA) standard or could be recycled into the plant with sludge utilization for palm oil estates, thus enabling the concept of zero discharge to be executed in the industries. In addition, green and healthy antioxidants such as oil and beta-carotene can be recovered from POME further demonstrate. Silica gel showed better performance in separation of carotenes from oil at temperature 40°C using adsorption chromatography with 1154.55 ppm. The attractiveness of this technology, enabling the utilization of reuse of agricultural waste into potentially value added products.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 4; 49-55
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    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:
    Assessment of the effluent polishing plant using a ultrafiltration membrane installed at a palm oil mill
    Autorzy:
    Abdul Hadi, Numan
    Hawari, Yahaya
    Ngatiman, Muzzammil
    Jalani, Nor Faizah
    Wahab, Noorshamsiana Abdul
    Halim, Rohaya Mohamed
    Powiązania:
    https://bibliotekanauki.pl/articles/208299.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    BOD
    palm oil mill
    wastewater treatment
    ultrafiltration membranes
    BZT
    olej palmowy
    oczyszczanie ścieków
    membrany ultrafiltracyjne
    Opis:
    Palm oil mills discharge raw effluent with high biochemical oxygen demand (BOD) of about 25 000 mg O2/dm3 . Conventional effluent treatment system uses ponds with a long hydraulic retention time of about 55–85 days, but the reduction of BOD is usually halted at 100–250 mg O2/dm 3. Further reduction of BOD to below 20 mg O2/dm3 to meet regulation requirement needs further advanced treatment. This study evaluates the efficiency of an effluent polishing plant installed at a palm oil mill targeting final effluent BOD below 20 mg O2/dm3. Characteristic of the incoming and treated effluent, dissolved oxygen in the aeration ponds and the effluent flow rate of the treatment plant have been determined. Due to low process throughput at the mill, the polishing plant operated at only 60% of its designed capacity. Treatment of effluent showed reduction of BOD from 39.3±5.8 to 6.1±3.8 mg O2/dm3, i.e., a reduction by 80–94%. Colour – a newly proposed regulation parameter – was reduced from 1081±69 to 845±60 ADMI, i.e., by 11–30%. This study indicates that while the treatment of effluent to reduce the BOD to below 20 O2/dm3 O2/dm3 is feasible, reduction of colour to less than 100 ADMI is not achievable.
    Źródło:
    Environment Protection Engineering; 2019, 45, 1; 155-170
    0324-8828
    Pojawia się w:
    Environment Protection 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 1-5 z 5

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