Article Per Year (5 Year)
p-Index From 2021 - 2026
3.198
P-Index
This Author published in this journals
All Journal Prosiding Semnastek Jurnal Sains dan Teknologi Reaksi Jurnal Vokasi Jurnal Teknologi JURNAL HANDAYANI PGSD FIP UNIMED Jurnal Riset, Inovasi, Teknologi & Terapan
Halim Zaini, Halim
Politeknik Negeri Lhokseumawe
Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

Published : 36 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 36 Documents
Search

 1   2   3   4 
STUDI KINETIKA ADSORPSI ION Cu2+ BERDASARKAN PSEUDO ORDE 1 DAN ORDE 2 PADA BIOADORBEN TANPA DAN TERAKTIVASI SECARA FISIKA DARI KULIT KACANG TANAH DENGAN METODE FIXED BED COLUMN Halim Zaini; Muhammad Sami; Fachraniah Fachraniah
Jurnal Sains dan Teknologi Reaksi Vol 19, No 02 (2021): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v19i02.2649

Abstract

Penyisihann logam berat dalam air dapat  dilakukan dengan berbagai cara seperti dengan metode penukar ion, membran, koagulasi, elektrolisa, adsorpsi. Salah satu metode yang relatif efektif dan efisien adalah metode adsorpsi.Penelitian dilaksanakan dengan metode adsorpsi  sistem kolom tunggal  sebagai bahan penjerap  kulit kacang tanah seberat 50 g, ukuran partikel 35 mesh dan  yang  diserap adalah air limbah artifisial  konsentrasi awal 50 ppm Cu2+sebanyak 10 liter, laju alir 4 liter/menit. Variabel bebas terdiri dari jenis penjerap yaitu tanpa aktivasi, aktivasi secara fisika serta waktu kontak 0;30;60;90;;120;150 menit.Adsorpsi logam Cu2+ dipengaruhi oleh waktu kontak dan kondisi bioadsorben, dengan kapasitas adsorpsi ektrapolasi tertinggi terjadi pada waktu 150 menit untuk tanpa diaktivasi sebesar 5,6 mg/g dan yang diaktivasi sebesar 7,4 mg/g. Studi kinetika adsorpsi  berlangsung mengikuti orde satu dengan kapsitas adsorpsi terkalibrasi secara berurut 5,507 mg/g ;9,526 mg/g dan tetapan k1 (men-1) 0,0038 ; 0,0181 serta  nilai linieritas (R2) masing-masingnya 0,6667 dan 0,9450 Keywords:  logam berat, adsorpsi, kapasitas adsorpsi, kinetika adsorpsi
KINETIKA ADSORPSI Pb(II) DALAM AIR LIMBAH LABORATORIUM KIMIA MENGGUNAKAN SISTEM KOLOM DENGAN BIOADSORBEN KULIT KACANG TANAH Halim Zaini; Muhammad Sami
Prosiding Semnastek PROSIDING SEMNASTEK 2016
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Keberadaan logam berat dalam air limbah menimbulkan permasalahan yang serius bagi lingkungan. Usaha penanganannya telah banyak dilakukan dengan berbagai metoda. Metode yang relatif efektif dan efisien adalah metode adsorpsi. Penelitian ini bertujuan penyisihan logam Pb(II) dalam air limbah menggunakan bioadsorben kulit kacang tanah dengan sistem kolom. Pada rancangan percobaan, sebagai variabel tetap digunakan berat adsorben, yaitu sebesar  50 g, ukuran partikel 40 mesh dan volume adsorbat digunakan 10 liter, laju alir 7 liter/menit. Variabel bebas waktu adsorpsi 0; 10; 20; 30; 60; 90; 120; 150; 180; 210; 240 menit dan jenis adsorben: tanpa aktivasi, aktivasi fisik dan aktivasi kimia (H2SO4  1N dan NaOH 1N). Hasil penelitian menunjukan bahwa adsorpsi logam Pb(II) dipengaruhi oleh waktu dan aktivator. Model kinetika adsorpsi memenuhi kinetika pseudo orde dua dengan kapasitas adsorpsi kesetimbangan (qe) terjadi pada waktu 210 menit untuk tanpa aktivasi sebesar 2,387 mg/g, aktivasi fisika sebesar 1,896 mg/g, aktivasi H2SO4 1N 2,768 mg/g dan aktivasi NaOH 1N 2,991 mg/g. Persen masa penyisihan Pb(II) tertinggi untuk tanpa aktivasi 64,98%, aktivasi fisika 59,21%, aktivasi dengan H2SO4  86,02% dan aktivasi dengan NaOH 1N  96,57%.  Keywords:  kapasitas adsorpsi, logam berat, metode adsorpsi, persen  penyisihan
PUPUK ORGANIK CAIR DAN PUPUK ORGANIK PADAT BAGI BUDIDAYA PISANG BARANGAN Halim Zaini
JURNAL HANDAYANI PGSD FIP UNIMED Vol 4, No 1 (2015): HANDAYANI JOURNAL
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (579.587 KB) | DOI: 10.24114/jh.v4i1.2865

Abstract

Pupuk organik cair dan pupuk organik padat melalui proses fermentasi dimaksudkan untuk melaksanakan usaha pertanian secara organik serta melakukan perubahan pola manajemen pertanianke  arah pola pertanian yang efektif dan efisien. Hasil analisa kandungan kimia pupuk organik cair menunjukkan kadar mineral yang besar terutama kadar kalsium 283,2 ppm dan besi 132,54 ppm, sedangkan analisa kandungan kimia pupuk organik padat menunjukkan kadar C 9,93% dan N 0,61% dengan perbandingan berada antara 15 – 25. Berdasarkan aspek ekonomi dan penggunaan pupuk organik cair terhadap tanaman pisang barangan dan tanaman lainnya seperti tanaman sayur-sayuran menunjukkan hasil yang signifikat dimana pertumbuhan dan perkembangannya menunjukkan peningkatan dengan waktu pengembalian investasi tiga bulan masa panen dan dapat memberikan keuntungan dalam jangka waktu setelah tiga bulan panen dengan tingkat keuntungan rata-rata perbulan sebesar Rp 800.000,- perbulan. Kata Kunci : Pembuatan Pupuk, Pupuk Organik Cair, Pupuk Organik Padat, Usaha Pertanian
The Effect Of Concentration Ratio Of Sugarcane Bagasse And Starch Fiber On The Characteristics Of Natural Styrofoam For Environmentally Friendly Food Packaging Raw Materials Reza Fauzan; H Harunsyah; M Yunus; Halim Zaini; S Syafruddin
Jurnal Sains dan Teknologi Reaksi Vol 21, No 01 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i01.4188

Abstract

Styrofoam is one type of food packaging that we often find. Styrofoam has excellent heat and cold resistance so it is used as an insulator. The ability to withstand good temperatures, lightweight and practical encourages the use of styrofoam as a food and beverage packaging material. However, Styrofoam contains many harmful substances and is not environmentally friendly. One solution is to replace the material for making styrofoam which is environmentally friendly called biodegradable foam. Sugarcane bagasse fiber has the potential as a basic material for making biodegradable foam. The purpose of this experiment is to determine the effect of the addition of bagasse fiber on the characteristics of biodegradable foam. This experiment uses a complete randomized design method with sugarcane bagasse fiber concentration treatment. The characteristic tests carried out include tensile strength test, water absorption test, biodegradation test, and thermogravimetric analysis. From the results of bagasse fiber decomposed 9,130 mg and still remaining 1,13 mg. The optimum concentration of biodegradable foam bagasse fiber on water absorption, biodegradation rate, and tensile strength in the 90:10 composition sample. The results of functional group analysis showed O-H and C-O groups which indicated that biodegradable foam is easily degraded by microorganisms in the soil. Keywords: Biodegradable foam, bagasse, cassava starch, packaging. 
DEVELOPMENT OF POLYURETHANE/CLAY NANOCOMPOSITES BASED ON PALM OIL POLYOL Ummi Habibah; A Adriana; S Sariadi; M Muhammad; Halim Zaini; Sabila Yasara SA; F Fachraniah
Jurnal Sains dan Teknologi Reaksi Vol 21, No 01 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i01.4189

Abstract

Polyurethanes (PURs) are highly adaptable polymeric substances with a variety of physical and chemical attributes. High abrasion resistance, tear strength, shock absorption, flexibility, and elasticity are just a few of the desirable qualities of PURs. Despite their generally low thermal stability, this can be enhanced by utilizing clay that has been treated. From renewable resources, polyurethane/clay nanocomposites have been created. By combining oleic acid from palm oil with glycerol, a polyol for the manufacture of polyurethane by reaction with an isocyanate was created. As a catalyst and emulsifier, dodecylbenzene sulfonic acid (DBSA) was employed. Octadodecylamine (ODA-mont) and cetyltrimethyl ammonium bromide (CTAB-mont) were used to treat the unaltered clay (kunipia-F).  The d-spacing in CTAB-mont and ODA-mont were bigger than that of the pure-mont (1.142 nm) at 1.571 nm and 1.798 nm, respectively. A pre-polymer technique was used to create polyurethane/clay nanocomposites, and the micro-domain structures of segmented PU, CTAB-mont-PU 1, 3, and 5 wt%, and ODA-mont-PU 1, 3, and 5 wt% were determined by FTIR spectra. X-ray diffraction (X-RD) was used to evaluate the nanocomposites' morphology, and the results revealed that all of the intercalated type's nanocomposites were created as a result of this effort. When the surfaces of the materials were examined using transmission electron microscopy (TEM) observation and scanning electron microscopy (SEM), these were further confirmed. Thermogravimetric analysis (TGA) was used to examine thermal stability.Pure PU begins to degrade around 200°C, which is lower than the degrading rates of CTAB-mont PU and ODA-mont PU, which occur at roughly 318°C and 330°C, respectively. Both pure polyurethane (PU) and PU/clay nanocomposites have their mechanical properties, including dynamic mechanical properties, tested. With only a 5 weight percent addition of the montmorillonite CTAB-mont PU or ODA-mont PU, respectively, the tensile strength of the nanocomposites increased by more than 214% and 267%, respectively, demonstrating the impressively positive impact of the modified organoclay on the strength and elongation at break of the nanocomposites.Keywords: Clay,Palm Oil, Polyurethane
Ekstraksi Kalium dari Abu Kulit Buah Alpukat (Persea Americana Mill) Menggunakan Pelarut Aquades Mastura, Dewi; Zaini, Halim; Sami, Muhammad
Jurnal Teknologi Vol 24, No 1 (2024): April 2024
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v24i1.5043

Abstract

One of the primary ingredients in avocado peel skin ash (Persian americana mill) is potassium, which can be utilized as an alkali source while producing soap. Avocado skin has a high potassium potential, which makes it ideal for extraction. Burning the potassium first and then continuing the extraction with distilled water as a solvent are two methods for obtaining potassium. In this investigation, the avocado peel was dried for 24 hours at 110 °C. A crusher is used to crush dried avocado skin into a powder that is then burned in a furnace for 5 hours at 500oC to create avocado skin ash. Variable extraction times are 30 minutes, 60 minutes, and 90 minutes, and the variable mass of avocado skin ash employed in this procedure is 5 g, 7.5 g, and 10 g. The variables for the extraction temperature are 60ºC, 70ºC, 80ºC. The optimum ash mass condition for this method is 7.5 gr, the best extraction temperature is 80oC, the best extraction duration is 90 minutes, and the best potassium concentration is 0.3 N. X-Ray Diffraction (XRD) analysis reveals that the predominant component in avocado skin ash is K2O.
TESTING CHEMICAL ZINC PHOSPHATE BASE AS A CORROSION INHIBITOR ON CARBON STEEL IN THE CORROSION MEDIA OF COOLING WATER, SEA WATER AND PDAM WATER Sariadi, S; Kenady, Rengga Rahmat; Irwan, I; Zaini, Halim
Jurnal Sains dan Teknologi Reaksi Vol 22, No 01 (2024): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v22i01.5620

Abstract

Zinc phosphate base corrosion inhibitor which aims to determine the effectiveness of the inhibitor to provide protection to carbon steel against the rate of corrosion, with variations in inhibitor concentration at 0, 20, 40 and 60 ppm.This research uses the weight loss method and studies the performance of zinc phosphate base chemical inhibitors in the mediacooling water, sea water and PDAM waterThis is done by carrying out SEM (Scanning Electron Microscopy) testing. The type of steel specimen used in the research is Carbon Steel and deepCorrosion media are cooling water, sea water and PDAM water.The addition of zinc phosphate base carbon steel inhibitor is effective in reducing the corrosion rate of carbon steel in PDAM water and sea water. in sea water media without inhibitors, a drastic reduction in the corrosion rate was seen from 119.0457 mpy to 1.7754 mpy and in PDAM water media without inhibitors, a drastic decrease in the corrosion rate was seen from 18.5873 mpy to 3.4163 mpy, after adding inhibitors with a concentration of 60 ppm. The efficiency of the zinc phosphate base inhibitor in cooling water corrosion media was 30.262% at a concentration of 40 ppm and a soaking time of 20 days. Keywords :Inhibition efficiency, Corrosion Inhibitors, Corrosion in sea water, Corrosion in cooling water, Corrosion Rate, Zinc Phosphate base.
DISTILLATION OF ESSENTIAL OILS FROM PATCHOULI LEAVES USING SOLAR ENERGY (PHOTOVOLTAIC) AS A HEATING SOURCE Prayogi, Muhammad Akbar; Rihayat, Teuku; Zaini, Halim
Jurnal Sains dan Teknologi Reaksi Vol 21, No 02 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i02.4815

Abstract

Currently, the use of the sun as renewable energy is very effective. Solar Cells or commonly called Photovoltaic systems are components used to absorb heat from sunlight which is converted into electrical energy. This photovoltaic technology is very well implemented in Indonesia because of the tropical climate and long exposure to sunlight. Of the many types of essential oils, one of the most prominent in Indonesia is patchouli oil. Currently, essential oil refining still uses energy sources that can be scarce at any time and are less environmentally friendly. In this research, we tried to design a distillation device using solar cells to produce electricity which will later be used as a heating source. The highest yield obtained was 2.60% at a drying time of 32 hours and a distillation time of 420 minutes and the lowest yield obtained was 0.94% at a drying time of 0 hours and a distillation time of 300 minutes. From the results of analysis using GC-MS, it shows that the chemical compounds identified include 4,7-Methanoazulene, Seychellene, and several other compounds. Based on the GC-MS results, patchouli alcohol was 37.18% and 4,7-Methanoazulene was 2.78%. According to International Market Standards, the patcholi alcohol content must be higher than 30%, therefore this material meets the Indonesian National Standard (SNI).Keywords : Solar Cell, Patchouli Oil, Distillation Equipment, Indonesian National Standard
Manufacturing Silage From Field Grass For Cattle Feed Using The Fermentation Method Kiram, Jumadil; Zaini, Halim; Satriananda, S
Jurnal Sains dan Teknologi Reaksi Vol 21, No 02 (2023): JURNAL SAINS DAN TEKNOLOGI REAKSI
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jstr.v21i02.5256

Abstract

ABSTRACT Ruminant livestock require forage for growth, reproduction and production. The principle of forage for livestock is that it contains good nutrition and is available throughout the year. One technology for preserving forage is by making silage. Making silage, apart from preserving and minimizing nutrient loss, can also improve feed nutrition. Silage is feed that is preserved through the ensiling process, namely the process of preserving feed or forage using fermentation work under anaerobic conditions (Suadnyana, et al, 2017). In this research, field grass silage was made with the addition of EM4 containing Lactobacillus sp bacteria at different concentrations and varied fermentation times so that making field grass silage is expected to improve the fermentative quality and improve or maintain the nutritional quality of the feed which can be seen from the content. water, protein content, pH, and color. The analysis process was carried out with varying fermentation times of 4, 8, 12, 16 and 20 days and EM4 concentrations of 0.2%, 0.4%, 0.6% and 0.8% (v/w). The test results show that the best silage is with a fermentation time variation of 20 days with an EM4 concentration of 0.6%, 20 days with an EM4 concentration of 0.2%, and 16 days with an EM4 concentration of 0.8%. This is because the longer the fermentation time and the more EM4 added, the better the quality of the silage obtained. Keywords: EM4, Bran, Fermentation, Molasses, Silage
Pengaruh Bunga Telang (Clitoria Ternatea L.) dalam Pemurnian Minyak Jelantah dari Hasil Penggorengan KFC Jalanan Nur, Alfin; Zaini, Halim; Irwan, Irwan
Jurnal Teknologi Vol 24, No 2 (2024): Oktober 2024
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v24i2.5585

Abstract

Butterfly pea flower is a plant that is very familiar to Indonesian people, this flower has a bright purple color and contains antioxidants which can reduce levels of free fatty acids in used cooking oil. The purpose of this study was to determine the effect of variations of time on the refining of used cooking oil. The study conducted by analyzed the reduction of free fatty acid, different mass of  butterfly pea flower. The results showed that, the initial free fatty acid data was 6.13% and the final free fatty acid number was 1.37%, the lowest moisture content test was 0.4%, the highest antioxidant test result was 89.51%, the lowest peroxide number test was 4 meq O2/kg and the organoleptic test was 3.75. Based on these data, it can be concluded that this research was declared successful in processing of used cooking oil even though it did not meet the quality standards of the Indonesian National Standard (SNI).
Co-Authors A Adriana A, Bakhtiar AA Sudharmawan, AA Adriana Adriana Amalia, Zuhra Amri Amri Anisah, Yuli Ariefin, Ariefin Azzahra, Nyak Cut Aja Rahmawati Elfiana Elfiana, Elfiana Elfiana, E Elia Rosita F Fachraniah Fachraniah, Fachraniah Faisal Abdullah Fona, Zahra H Harunsyah Harunsyah, Harunsyah Indrayadi, Bambang Intan, Syarifah Keumala Irwan Irwan Irwan, I Kenady, Rengga Rahmat Kiram, Jumadil Leni Maulinda, Leni M Muhammad M Yunus M. Yunus Mardani Mardani MASTURA, DEWI Muhammad Sami Muhammad Sami Muhammad Yunus Nahar, Nahar Nisrina, Dian Nur, Alfin Nurdin, Irwan Pardi Pardi, Pardi Prayogi, Muhammad Akbar Prihatin, Nanang R Ridwan Rahmahwati, Cut Aja Reza Fauzan Ridwan, Ridwan Rudy Soenoko Ruhana, Ruhana S Sariadi S Syafruddin Sabila Yasara SA Safitri, Aida Salsabila, Cut Nuraini Sami, Muhamma Sami, Muhammad Sari, Husna Sariadi, S Saskia, Saskia Satriananda, S Satriananda, Satriananda Syafruddin Syafruddin Teuku Rihayat Thahirah, Afifah Ummi Habibah Zaimahwati, Zaimahwati Zulkifli Zulkifli