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ADSORPTION OF NICKEL IN NICKEL SULPHATE SOLUTION (NISO4) BY LAPINDO MUD Sa'diyah, Khalimatus; Syarwani, Muchamad; Hadiantoro, Sigit
Jurnal Bahan Alam Terbarukan Vol 6, No 1 (2017): June 2017 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v6i1.7963

Abstract

This research has been carried out to produce adsorbent from Lapindo mud through various activation process, to adsorb nickel from nickel sulfate solution. Several investigations were performed in this research such as characterization of Lapindo mud before and after activation, effect of physical, chemical and chemico-physical activation to Si/Al ratio and determine the most effective method to produce adsorbent with high adsorption rate. Lapindo mud in this research was prepared through several methods such as without activation, calcination at 500 °C for 3 hours, chemical activation with 6 N HCl under reflux for 6 hours, chemical activation with 6 N NaOH under reflux for 6 hours, chemical activation with 6 N HCl under reflux followed by calcination process and the last treatment is chemical activation with 6 N NaOH under reflux followed by calcination process. The object of this research is the Lapindo mud adsorbent ability to adsorb Ni from NiSO4 solution. While activation methods and nickel concentration in this become independent variable. The reduction of nickel concentration efficiency is determined by the nickel concentration before and after adsorption process. The Si/Al ratio of Lapindo mud before activation process was 3.01 and it increase as the mud is activated. The highest Si/Al ratio was found at activation using HCl which is 7.85. Chemical activation using NaOH was found to be the best method to create the adsorbent with adsorption capacity 98.3%.
AKULTURASI PSIKOLOGIS MAHASISWA INDONESIA DI THAILAND (STUDI FENOMENOLOGI PADA PESERTA KKN-PPL TERPADU IAIN TULUNGAGUNG) Sa'diyah, Khalimatus; Marwing, Arman
Psikoislamika : Jurnal Psikologi dan Psikologi Islam Vol 13, No 1 (2016)
Publisher : Fakultas Psikologi Universitas Islam Negeri Maulana Malik Ibrahim

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (784.044 KB) | DOI: 10.18860/psi.v13i1.9170

Abstract

Abstrak : Penelitian ini bertujuan untuk memahami dinamika akulturasi psikologis mahasiswa peserta KKN-PPL Terpadu IAIN Tulungagung di Thailand dengan cara mengidentifikasi dan memahami faktor motivasional keterlibatan para peserta dalam KKN-PPL terpadu di Thailand, hambatan sebagai kejadian menekan (stresor) yang mereka hadapi, strategi pengatasan masalah yang mereka lakukan dan proses akulturasi psikologisyang dijalani oleh para peserta KKN-PPL terpadu selama berada di Thailand. Penelitian ini adalah penelitian kualitatif dengan pendekatan fenomenologi. Hasil temuan penelitian ini adalah terdapat kebutuhan dasar seperti kebutuhan untuk mencapai kesenangan (need to have fun), kebutuhan akan cinta dan dimiliki (need to love and belonging),dan kebutuhan akan kekuasaan (need to power) yang terpenuhi melalui keterlibatan dalam program KKN- PPL terpadu di Thailand. Stressor selama proses akulturasi di tempat KKN-PPL di Thailand dapat berbeda antara individu satu dengan individu lainnya. Subjek yang hanya mengalami stresor awal dan tidak mengalami stresor lanjutan cenderung mampu mempergunakan strategi coping berfokus pada masalah yang konsisten dan koping berfokus emosi secara bersamaan tanpa adanya peralihan koping, berbeda halnya dengan peserta dengan pengalaman stressor lanjutan yang cenderung menunjukkan pola coping yang mengalami penurunan atau peralihan secara bertahap. Adapun proses akulturasi psikologis peserta KKN-PPL di Thailand merupakan hasil interaksi dari faktor –faktor yang kompleks dan sangat berpengaruh pada  keberhasilan atau kegagalan hasil akulturasi psikologis menjadi integrated self atau diri baru. Kata kunci: Akulturasi psikologis , stress akulturasi , strategi copingAbstract: This study aims to understand the psychological acculturation dynamics of participant of KKN-PPL integrated programme in Thailand through identifying and understanding the motivation of participants to participate on KKN-PPL integrated programme in Thailand. How did Barrier as stressor which they face it, what coping strategies was used by participants, and how did the psychological acculturation process of participants in Thailand. This study is a qualitative research with phenomenological approach. the results of this research is there are basic needs such as  need to have fun, need to love and belonging and need to power which are realized through their participation on the KKN- PPL integrated programme in Thailand. As for this research found that stressor was different among participants.. Subjects who face initial stressor without advance stressor tend to using coping strategies focused on the problem consistenly and coping strategies centered emotions simultaneously without adaptation switching otherwise subjects who face the advance stressors tend to being decreased in pattern or transition coping strategies gradually. Furthermore, the psychological acculturation process of participant of KKN-PPL integrated programme in Thailand are the result of  interaction of complex factors which affect participants to be success or failure to be integrated self or to be new self identity.Key words: Psychological acculturation, Acculturation stress, Coping strategies 
THE EFFECT OF AMOUNT OF NATURAL ZEOLIT CATALYST IN PRODUCT OF POLYPROPILENE (PP) PLASTIC WASTE PYROLYSIS Juliastuti, Sri Rachmania; sa'diyah, khalimatus
Jurnal Bahan Alam Terbarukan Vol 4, No 2 (2015): December 2015
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v4i2.4171

Abstract

To overcome the waste problem, especially plastic waste , environmental concerned scientists from various disciplines have conducted various research and actions. Catalytic pyrolysis processes was chosen as an alternative method to recycle plastic waste. The purpose of this experiment was to determine the effect of natural zeolit catalyst on the pyrolysis process with oxygen-free conditions to obtain maximum hydrocarbon compounds (gasoline fraction in C5-C9). The process of pyrolysis was conducted in 3.5 dm3 unstirred stainless steel semi-batch reactor. This process operated at atmospheric pressure with nitrogen injection. Plastic waste that used in this particular paper was 50 grams of polypropylene (PP). In pyrolysis process, natural zeolite catalysts was added 2,5 gram (5% weight of natural zeolite per weight of plastic waste samples), 5 gram (10% ), and 10 gram (20%). Temperature of pyrolysis was 450°C and were maintained until 30 minutes. Steam that produced from pyrolisis was condensed and analysed by gas chromatography–mass spectrometry (GC-MS) to determine yield of hydrocarbons produced. From the analysis of GC-MS, liquid products of pyrolysis contained lots of aromatic hydrocarbons. The optimal amount of catalyst that produce liquid with hydrocarbon compound that has the quality of gasoline was 10 gram (20%) with ≤C9 composition as 29,16% n-paraffin, 9,22% cycloparaffin, and 61,64% aromatics.
PENDAMPINGAN SISTEM PENGELOLAAN KEUANGAN BERBASIS SPREADSHEET BAGI GURU MI DARUSSALAM JATIGUWI Sa'diyah, Khalimatus; Suharti, Profiyanti Hermien; Hidayati, Mutia Devi; Iswara, M. Agung Indra
PEDULI: Jurnal Ilmiah Pengabdian Pada Masyarakat Vol 5 No 1 (2021)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/peduli.v5i1.318

Abstract

MI Darussalam Jatiguwi is one of the MI’s in Malang Regency. Many problems are faced by the institution, one of which is the limited number and competence of teachers or teaching staff and the lack of use of information technology to support activities financial management system in elementary school. The purpose of implementing this Community Service Activity (PkM) is the revitalization and development of MI Darussalam teachers related to a SpreadSheet-based financial management system mentoring workshop. The implementation of PkM is carried out by giving live lectures and demonstrations of using applications to manage madrasah finances. The PkM activity was held in the MI Darussalam Jatiguwi building and was attended by the PkM Team and students of the Chemical Engineering Department as well as teachers and staff of MI Darussalam Jatiguwi. This PkM activity pays attention to the health protocol, namely the participants involved are measured their body temperature, before entering the room clean their hands and must wear masks during the activity. The event started with an opening by the Chairman of the MI Darussalam Foundation, followed by remarks by representatives of the PkM Team, a symbolic handover of computer grants and the provision of materials. Participants participated enthusiastically.