scholarly journals Pengamatan Pergerakan Limbah Minyak Goreng Berdasarkan Nilai Resistivitasnya dengan Menggunakan Metode Crosshole Dipole-Dipole

2018 ◽  
Vol 15 (2) ◽  
pp. 76
Author(s):  
Supriyadi Supriyadi ◽  
Nurul Priyantari ◽  
Agus Supriyanto ◽  
Najibur Rohim
Keyword(s):  
Laboratory Scale ◽  
Soil Resistivity ◽  
Street Vendors ◽  
Street Food ◽  
Research Results ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Dipole Configuration ◽  
The University

The area around of Jember University has potential as a trading area because the majority of its citizens are immigrants. This potential is utilized by street food vendors located around the University of Jember. Most street vendors dispose of waste i.e used cooking oil directly around trading locations. One methode to determine waste seepage in the soil is to use the geoelectric method with crosshole dipole-dipole configuration. This research is a laboratory scale research. The sample of soil and waste of used cooking oil were taken from the location of street vendors around Jember University. Based on the research results, the soil resistivity value before being given the waste is 2.78 Ωm to 7.52 Ωm. While the value of soil resistivity after given the waste of used cooking oil ranged from 0.01 Ωm to 5.15 Ωm. Observations from the first day to the seventh day indicate that the movement of waste used cooking oil occurs vertically due to gravity and in all directions due to capillarity.

scholarly journals Training On The Making Of Solid Soap By Utilizing Used Cooking Oil Waste By Pkk Women In Wangen Village

2020 ◽  
Vol 1 (2) ◽  
Author(s):  
Tatiana Siska Wardani ◽  
Erna Chotidjah Suhatmi
Keyword(s):  
Social Welfare ◽  
Environmental Pollution ◽  
Training Program ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
Village Women ◽  
The University ◽  
At Home

Social welfare can be improved in various ways that can be done, for example, through communityempowerment programs. The part of the community that can be empowered are housewives who aremembers of the PKK organization, especially in Wangen Village, Polanharjo District, Klaten Regency. Theimpact of environmental pollution is due to the disposal of used cooking oil and is followed by an increasein the use of cooking oil due to the appeal to stay at home during the Covid-19 pandemic. The existence ofthis makes a training program and assistance for the utilization of cooking oil waste into soap is the rightthing to deal with this problem. The specific goals and targets to be achieved in this activity are that PKKmothers are interested and motivated to become entrepreneurs, to form groups of PKK members whobecome economically independent by producing soap. In order to achieve this goal, a community serviceprogram was carried out by a lecturer at the University of Duta Bangsa Surakarta who provided soapproduction training conducted by PKK women in Wangen Village. The result of this service is an increasein the skills of PKK Village women in Wangen in making soap from used cooking oil waste.

Analysis of the Social and Environmental Impact of Biodiesel Fuel Refined from Used Cooking Oil in Ibaraki Prefecture

2010 ◽  
Vol 40 (3) ◽  
pp. 749-762
Author(s):  
Hirokazu GOTO ◽  
Yuichi HATAYA ◽  
Yasuyuki YOKOTA ◽  
Takeshi MIZUNOYA ◽  
Yoshiro HIGANO
Keyword(s):  
Environmental Impact ◽  
Biodiesel Fuel ◽  
Cooking Oil ◽  
Used Cooking Oil ◽  
The Social ◽  
Ibaraki Prefecture

scholarly journals Liquid materials for biomedical research: a highly IT-integrated and automated biobanking solution

2019 ◽  
Vol 43 (6) ◽  
pp. 347-354 ◽  
Author(s):  
Daniela Popp ◽  
Romanus Diekmann ◽  
Lutz Binder ◽  
Abdul R. Asif ◽  
Sara Y. Nussbeck
Keyword(s):  
Life Cycle ◽  
Medical Center ◽  
Research Results ◽  
Long Term Storage ◽  
Medical Centers ◽  
It Systems ◽  
Complete Life Cycle ◽  
The University ◽  
Term Storage

Abstract Various information technology (IT) infrastructures for biobanking, networks of biobanks and biomaterial management are described in the literature. As pre-analytical variables play a major role in the downstream interpretation of clinical as well as research results, their documentation is essential. A description for mainly automated documentation of the complete life-cycle of each biospecimen is lacking so far. Here, the example taken is from the University Medical Center Göttingen (UMG), where the workflow of liquid biomaterials is standardized between the central laboratory and the central biobank. The workflow of liquid biomaterials from sample withdrawal to long-term storage in a biobank was analyzed. Essential data such as time and temperature for processing and freezing can be automatically collected. The proposed solution involves only one major interface between the main IT systems of the laboratory and the biobank. It is key to talk to all the involved stakeholders to ensure a functional and accepted solution. Although IT components differ widely between clinics, the proposed way of documenting the complete life-cycle of each biospecimen can be transferred to other university medical centers. The complete documentation of the life-cycle of each biospecimen ensures a good interpretability of downstream routine as well as research results.

Synthesis and characterization of coal fly ash supported zinc oxide catalyst for biodiesel production using used cooking oil as feed

2021 ◽  
Vol 170 ◽  
pp. 302-314
Author(s):  
Adeyinka S. Yusuff ◽  
Aman K. Bhonsle ◽  
Jayati Trivedi ◽  
Dinesh P. Bangwal ◽  
Lok P. Singh ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Fly Ash ◽  
Oxide Catalyst ◽  
Coal Fly Ash ◽  
Biodiesel Production ◽  
Synthesis And Characterization ◽  
Cooking Oil ◽  
Used Cooking Oil

scholarly journals Two-Stage Biodiesel Synthesis from Used Cooking Oil with a High Acid Value via an Ultrasound-Assisted Method

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3703
Author(s):  
Ming-Chien Hsiao ◽  
Wei-Ting Lin ◽  
Wei-Cheng Chiu ◽  
Shuhn-Shyurng Hou
Keyword(s):  
Acid Value ◽  
Molar Ratio ◽  
Optimal Conditions ◽  
Two Stage ◽  
Cooking Oil ◽  
High Acid ◽  
Used Cooking Oil ◽  
Biodiesel Synthesis ◽  
Stage Process ◽  
Ultrasound Assisted

In this study, ultrasound was used to accelerate two-stage (esterification–transesterification) catalytic synthesis of biodiesel from used cooking oil, which originally had a high acid value (4.35 mg KOH/g). In the first stage, acid-catalyzed esterification reaction conditions were developed with a 9:1 methanol/oil molar ratio, sulfuric acid dosage at 2 wt %, and a reaction temperature of 60 °C. Under ultrasound irradiation for 40 min, the acid value was effectively decreased from 4.35 to 1.67 mg KOH/g, which was decreased to a sufficient level (<2 mg KOH/g) to avoid the saponification problem for the subsequent transesterification reaction. In the following stage, base-catalyzed transesterification reactions were carried out with a 12:1 methanol/oil molar ratio, a sodium hydroxide dosage of 1 wt %, and a reaction temperature of 65 °C. Under ultrasound-assisted transesterification for 40 min, the conversion rate of biodiesel reached 97.05%, which met the requirement of EN 14214 standard, i.e., 96.5% minimum. In order to evaluate and explore the improvement of the ultrasound-assisted two-stage (esterification–transesterification) process in shortening the reaction time, additional two-stage biodiesel synthesis experiments using the traditional mechanical stirring method under the optimal conditions were further carried out in this study. It was found that, under the same optimal conditions, using the ultrasound-assisted two-stage process, the total reaction time was significantly reduced to only 80 min, which was much shorter than the total time required by the conventional method of 140 min. It is worth noting that compared with the traditional method without ultrasound, the intensification of the ultrasound-assisted two-stage process significantly shortened the total time from 140 min to 80 min, which is a reduction of 42.9%. It was concluded that the ultrasound-assisted two-stage (esterification–transesterification) catalytic process is an effective and time-saving method for synthesizing biodiesel from used cooking oil with a high acid value.

Valorisation of used cooking oil sludge by codigestion with swine manure

2014 ◽  
Vol 34 (8) ◽  
pp. 1537-1545 ◽  
Author(s):  
J. Fierro ◽  
E.J. Martínez ◽  
A. Morán ◽  
X. Gómez
Keyword(s):  
Swine Manure ◽  
Oil Sludge ◽  
Cooking Oil ◽  
Used Cooking Oil
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