Article Per Year (5 Year)
p-Index From 2020 - 2025
0.817
P-Index
This Author published in this journals
All Journal Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Zai, Liver
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Education Materials Science & Nanotechnology Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
PENGOLAHAN LIMBAH KULIT KAKAO DAN KEMIRI PADA PEMBUATAN BIOPELET SEBAGAI BAHAN BAKAR ALTERNATIF Purwandari, Vivi; Harahap, Mahyuni; Zai, Liver; Arya Mubarakh, Muhammad
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 6 No. 2 (2022): Jurnal Kimia Saintek dan Pendidikan
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v6i2.3492

Abstract

The amount of fuel reserves were getting depleted and has created problems with the occurrence of a fuel crisis, which has resulted in higher prices and the economy of the community has been down. Biomass is a renewable alternative fuel source but still has weaknesses, like high water content, low calorific value and low density and the combustion process requires high temperatures. To overcome this problem, biomass can be processed into biopellets with the aim of increasing its density and increasing the quality of combustion. The research was about the processing of cocoa and candlenut shell waste as an alternative fuel in the manufacture of biopellets using tapioca adhesive. The stages of this research include the preparation of raw materials for cocoa shells and candlenut shells ground to a size of 60 mesh and then added with various adhesives of 5%, 10% and 15%, then printed manually and dried in an oven with a temperature of 60oC for ±3 hours. Furthermore, the biopellets were characterized based on the provisions of SNI 8021:2014 which included density, moisture content, ash content, volatile matter, fixed carbon, calorific value with the most optimum values, respectively, 1.02 g/cm3, 3.14%, 6 ,25%, 64.56%, 26.05% and 4145.6 cal/g. Biopellets were also tested for effectiveness such as fracture strength and combustion rates with values of 0.14% and 0.11 g/min, respectively. Biopellet with the best quality was found in the type of biopellet with a mixture of raw materials 2:1 and using 10% tapioca adhesive.
PROCESSING OF SAWDOW WASTE OF MAHONI AND JATI WOOD AS A MATERIAL GYPSUM CEILING FILLERS WITH POLIVINYL ADHESIVE ALCOHOL Zai, Liver; Halawa, Estetika Niat Iman; Tarigan, Malemta; Gultom, Erdiana; Purwandari, Vivi; Jiamin, Ong Amanda
JURNAL KIMIA SAINTEK DAN PENDIDIKAN Vol. 7 No. 1 (2023): JURNAL KIMIA SAINTEK DAN PENDIDIKAN
Publisher : Program Studi Kimia - Universitas Sari Mutiara Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51544/kimia.v7i1.3986

Abstract

Along with the increase in population, the need for building materials, namely wood, will increase, thus triggering rampant illegal logging, which will cause floods, landslides, and global warming. One of the efforts made to reduce the use of wood is to make gypsum composite boards. This study aims to utilize mahogany wood waste and jati wood powder as gypsum board fillers. Research has been carried out on processing waste sawdust from mahogany and jati wood as a filling material for making gypsum ceilings with polyvinyl alcohol adhesive by mixing and compacting using a hot compressor at 70o C. Good quality with a density value of 0.82 g /cm3 and absorption capacity of 38.4% complied with SNI 03-2105-2006. Mechanical properties with variations in impact strength (95:5:10) of 19.014 J/m2, flexural strength of variation (95:5) of 395, 446 N/m2, and fracture strength of variation (95:5:5) of 1.7758 N/m2. A Gypsum board was obtained, which did not meet SNI 03-6384-2000 on the gypsum board specification for the results of testing for flexural strength and fracture strength.
PEMBERDAYAAN MASYARAKAT DALAM PENGELOLAAN SAMPAH BIOMASSA BERKELANJUTAN DENGAN TEKNOLOGI PIROLISIS Hestiana, Hestiana; Purwandari, Vivi; Harahap, Mahyuni; Zai, Liver; Damayanti, Rizki; Bawamenewi, Langsar; Zaim Akbari, Muhammad
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 2 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i2.643-647

Abstract

Sebagian besar penduduk Nagori Serapuh adalah Bertani dan berladang memiliki potensi besar dalam menghasilkan limbah biomassa baik itu dari rumah tangga maupun limbah biomasa hasil panen. Pengolahan sampah biomasa yang efektif dan berkelajutan  serta ramah lingkungan dengan teknologi pirolisis ini sangat dibutuhkan masyarakat Nagori Serapuh ini. Target dan indikator capaian bagi desa binaan Nagori Serapuh  adalah penurunan volume sampah yang dibuang dan dibakar dengan cara yang salah, menandakan bahwa masyarakat mengadopsi praktek pengelolaan sampah yang lebih efektif dengan teknologi pirolisis. Peningkatan kesejahteraan masyarkat secara ekonomi dan lingkungan juga menjadi indikator lain yang dapat dilihat dari penghematan biaya, pemanfaatan hasil pirolisis, pemanfaatan sumber daya yang lebih efisien dan ramah lingkungan.
PEMBERDAYAAN MASYARAKAT DALAM PENGELOLAAN SAMPAH BIOMASSA BERKELANJUTAN DENGAN TEKNOLOGI PIROLISIS Hestiana, Hestiana; Purwandari, Vivi; Harahap, Mahyuni; Zai, Liver; Damayanti, Rizki; Bawamenewi, Langsar; Zaim Akbari, Muhammad
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 8, No 2 (2025): MARTABE : JURNAL PENGABDIAN KEPADA MASYARAKAT
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v8i2.643-647

Abstract

Sebagian besar penduduk Nagori Serapuh adalah Bertani dan berladang memiliki potensi besar dalam menghasilkan limbah biomassa baik itu dari rumah tangga maupun limbah biomasa hasil panen. Pengolahan sampah biomasa yang efektif dan berkelajutan  serta ramah lingkungan dengan teknologi pirolisis ini sangat dibutuhkan masyarakat Nagori Serapuh ini. Target dan indikator capaian bagi desa binaan Nagori Serapuh  adalah penurunan volume sampah yang dibuang dan dibakar dengan cara yang salah, menandakan bahwa masyarakat mengadopsi praktek pengelolaan sampah yang lebih efektif dengan teknologi pirolisis. Peningkatan kesejahteraan masyarkat secara ekonomi dan lingkungan juga menjadi indikator lain yang dapat dilihat dari penghematan biaya, pemanfaatan hasil pirolisis, pemanfaatan sumber daya yang lebih efisien dan ramah lingkungan.
Co-Authors Arya Mubarakh, Muhammad Bawamenewi, Langsar Gultom, Erdiana Halawa, Estetika Niat Iman Harahap, Mahyuni Hestiana, Hestiana Jiamin, Ong Amanda Purwandari, Vivi Rizki Damayanti, Rizki Tarigan, Malemta Zaim Akbari, Muhammad