JURNAL KIMIA SAINTEK DAN PENDIDIKAN最新文献

UNJUK KERJA NaOH DALAM MEREDUKSI LOGAM BERAT PADA LIMBAH ABU BOILER NaOH 在减少锅炉废渣中重金属方面的应用

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2024-06-10 DOI: 10.51544/kimia.v8i1.4950

Maria Peratenta Sembiring, Rozanna Sri Irianty, Zulfansyah, Chairul

{"title":"UNJUK KERJA NaOH DALAM MEREDUKSI LOGAM BERAT PADA LIMBAH ABU BOILER","authors":"Maria Peratenta Sembiring, Rozanna Sri Irianty, Zulfansyah, Chairul","doi":"10.51544/kimia.v8i1.4950","DOIUrl":"https://doi.org/10.51544/kimia.v8i1.4950","url":null,"abstract":"Proses pembakaran batu bara menghasilkan emisi berupa gas SO2, NO2, CO, CO2, volatile hydrocarbon (VHC), suspended particulate matter (SPM), serta residu padat berupa abu boiler. Abu boiler mengandung berbagai logam berat beracun, diantaranya tembaga (Cu), kobalt (Co), kromium (Cr), cadmium (Cd) dan timbal (Pb). Penelitian ini bertujuan untuk menentukan efisiensi reduksi logam berat Cu, Co, Cr, Pb, dan total dengan melakukan ekstraksi menggunakan pelarut kimia NaOH dan mengubah logam transisi menjadi kompleks dengan Ethylene diamine tetraacetic acid (EDTA) pada rasio EDTA: abu boiler sebesar 1:2, 1:1, 2:1; durasi pengadukan sebesar 2 dan 4 jam; serta suhu ekstraksi sebesar 25 dan 60 oC. Analisis Inductively Coupled Plasma (ICP) dilakukan untuk mengetahui penurunan kadar logam berat dari ekstrak abu boiler. Hasil penelitian menunjukkan bahwa kondisi ekstraksi berupa rasio EDTA: abu boiler sebesar 2:1, durasi pengadukan sebesar 4 jam, dan suhu ekstraksi sebesar 60 oC dapat menghasilkan persentase penurunan kadar logam berat total tertinggi yang mencapai 77,2% dengan persentase penurunan kadar Co, Cr, Cu, dan Pb secara berturut-turut sebesar 75,4%, 77,9%, 74,5%, dan 81,9%. Penelitian ini diharapkan dapat menjadi rekomendasi bagi penelitian selanjutnya dalam mengeksplor potensi pemanfaatan abu boiler yaitu sebagai bahan campuran aspal, pembuatan batako, dan sebagainya.","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141366583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PROCESSING OF SAWDOW WASTE OF MAHONI AND JATI WOOD AS A MATERIAL GYPSUM CEILING FILLERS WITH POLIVINYL ADHESIVE ALCOHOL 加工马霍尼和贾提木锯废作为石膏吊顶填料的材料用聚乙烯醇胶粘剂

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3986

Liver Zai, Estetika Niat Iman Halawa, Malemta Tarigan, Erdiana Gultom, V. Purwandari, Ong Amanda Jiamin

{"title":"PROCESSING OF SAWDOW WASTE OF MAHONI AND JATI WOOD AS A MATERIAL GYPSUM CEILING FILLERS WITH POLIVINYL ADHESIVE ALCOHOL","authors":"Liver Zai, Estetika Niat Iman Halawa, Malemta Tarigan, Erdiana Gultom, V. Purwandari, Ong Amanda Jiamin","doi":"10.51544/kimia.v7i1.3986","DOIUrl":"https://doi.org/10.51544/kimia.v7i1.3986","url":null,"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.","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133950501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

PEMBUATAN NANOKARBON DARI LIMBAH PADAT KELAPA SAWIT MENGGUNAKAN METODE HIDROTERMAL 利用热液方法从棕榈油固体废物中提取纳米碳

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3906

Nelson Silitonga, Nurliana Tarigan, Gimelliya Saragih, Vivi Purwandari, Ahmad Zukhruf Akbari

引用次数: 0

PENGARUH UKURAN PARTIKEL TANDAN KOSONG KELAPA SAWIT (TKKS) DAN CANGKANG SAWIT DALAM PEMBUATAN PAPAN PARTIKEL MENGGUNAKAN POLIETILENA (PE) DAN POLIVINIL ALKOHOL (PVA)

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3867

Donda Donda, E. Salim, Darni Paranita, Yosua Francisco

{"title":"PENGARUH UKURAN PARTIKEL TANDAN KOSONG KELAPA SAWIT (TKKS) DAN CANGKANG SAWIT DALAM PEMBUATAN PAPAN PARTIKEL MENGGUNAKAN POLIETILENA (PE) DAN POLIVINIL ALKOHOL (PVA)","authors":"Donda Donda, E. Salim, Darni Paranita, Yosua Francisco","doi":"10.51544/kimia.v7i1.3867","DOIUrl":"https://doi.org/10.51544/kimia.v7i1.3867","url":null,"abstract":"Telah dilakukan penelitian terhadap besar ukuran Tandan Kosong Kelapa Sawit (TKKS) terhadap beberapa bahan polimer yaitu LDPE (Low Density Polietilena), HDPE (High Density Polietilena, dan PVA (Polivinil Alkohol) diperoleh hasil terhadap daya serap air sangat dipengaruhi terhadap ukuran TKKS dimana semakin besar ukuran bahan (10 mesh) pada bahan LDPE semakin besar daya serap air = 9,47 %, sedangkan pada HDPE semakin besar ukuran TKKS (10 mesh) semakin besar daya serap = 2,34 %, dan untuk bahan PVA untuk TKKS (10 mesh) semakin besar kadar air semakin kecil =7,39%, kerapatan partikel pada bahan LDPE semakin kecil ukuran TKKS (60 mesh) kerapatan semakin besar = 1,39 g/ml, pada bahan HDPE semakin kecil ukuran TKKS (40 mesh) maka nilai kerapan makin tinggi =1,80 g/ml, sedang pada bahan PVA semakin besar ukuran TKKS akan lebih besar nilai kerapatannya untuk ukuran TKKS (20 mesh ) =1,09 g/ml. Keteguhan patah (MOR) untuk bahan LDPE semakin besar ukuran TKKS (10 mesh) semakin semakin besar = 0,70 x 102 kgf/cm2, untuk bahan HDPE semakin besar ukuran TKKS maka keteguhan patah (MOR) semakin besar untuk TKKS (10 mesh) = 0,81 x 102 kgf/cm2 dan untuk bahan PVA semakin kecil ukuran TKKS maka semakin besar nilai keteguhan patah (MOR) untuk TKKS ukuran bahan (60 mesh) = 0,70x 102 kgf/cm2","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133545228","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PENENTUAN DISOLUSI PADA OBAT SENYAWA KETOPROFEN SECARA SPEKTROFOTOMETRI 光谱测定化合物KETOPROFEN的解药

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3868

Renny Futeri, Pevi Riani

{"title":"PENENTUAN DISOLUSI PADA OBAT SENYAWA KETOPROFEN SECARA SPEKTROFOTOMETRI","authors":"Renny Futeri, Pevi Riani","doi":"10.51544/kimia.v7i1.3868","DOIUrl":"https://doi.org/10.51544/kimia.v7i1.3868","url":null,"abstract":"Research on dissolution determination of Ketoprofen compounds by Spectrophotometry. Ketoprofen is a non-steroidal anti-inflammatory drug compound (NSAID) that works as an anti-inflammatory. Anti-inflammatory here is a group of drugs used to reduce inflammation and relieve pain. The dissolution test is a method used to determine the content of active compounds that dissolve in drugs, where the time, temperature and media are set according to the human stomach and intestines, and can find out how much the content of active compounds dissolves in the human intestines and stomach. This dissolution test, then the ketoprofen drug is read by spectrophotometry. Test the dissolution by spectrophotometer at a wavelength of 260 nm using HCl 0.1 N and buffer pH 7.4. The results of the determination of the dissolution test of the active substance on ketoprofen at the acid stage obtained an average of 0.009% and at the pH 7.4 buffer stage obtained an average content of 86.4155%. It can be concluded that the determination of the ketoprofen dissolution test in the sample meets the requirements (MS), in accordance with the specifications of the Internal Standard of PT Novell Pharmaceutical Laboratories, namely at the acid stage not more than 10% of ketoprofen dissolved in 2 hours, and at the pH 7.4 buffer stage it has a requirement of 75%. ketoprofen dissolved in 45 minutes. In the dissolution of acidic media, 0.1 N HCl is used because its condition resembles that of the stomach.","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125096012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PEMBUATAN PENYERAP GAS BUANG KENDARAAN BERMOTOR BERBASIS LIMBAH PADAT KELAPA SAWIT 生产一种以棕榈油固体废物为基础的机动车废气捕获物

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3904

Abdillah Abdillah, Gimelliya Saragih, Muhammad Zaim Akbari, Vivi Purwandari

{"title":"PEMBUATAN PENYERAP GAS BUANG KENDARAAN BERMOTOR BERBASIS LIMBAH PADAT KELAPA SAWIT","authors":"Abdillah Abdillah, Gimelliya Saragih, Muhammad Zaim Akbari, Vivi Purwandari","doi":"10.51544/kimia.v7i1.3904","DOIUrl":"https://doi.org/10.51544/kimia.v7i1.3904","url":null,"abstract":"Polusi udara merupakan masalah yang dihadapi di masa sekarang, kendaraan bermotor menyumbang 70% Polusi udara yang ada di Indonesia. Membran Keramik sebagai penyerap emisi karbon dengan nanokarbon sebagai filler digunakan untuk menyerap gas buang yang dihasilkan oleh kendaraan bermotor. Penelitian ini bertujuan untuk membantu pemerintah dalam mengatasi polusi udara dengan memanfaatkan limbah padat kelapa sawit. Tanah liat sebagai matriks di aktivasi menggunakan KOH, serbuk pelepah sawit sebagai pembentuk pori dan menggunakan nanokarbon sebagai filler yang berasal dari cangkang sawit yang dibuat melalui metode hidrotermal dengan 180oC selama 6 jam dengan pelarut air dengan perbandingan 80:15:5. Campuran di hotpress dengan suhu 120oC dilanjutkan dengan proses furnance dengan suhu 600oC selama 1 jam. menghasilkan kekuatan tarik sebesar 6.475 Mpa. Hasil analisa FTIR membran keramik berpori menunjukan adanya gugus fungsi bahan baku pembentuk membran keramik dan dari hasil analisa DSC membran keramik menunjukan bahwa kemampuan termal penggunaan membran keramik dapat digunakan dibawah temperatur 470oC. Hasil uji data filtrasi (emisi gas buang) pada keramik berpori yang dihasilkan dapat di lihat CO terserap 3,20%, CO2 terserap 5.6% dan HC terserap 418 ppm.","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128871916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MECHANICAL PROPERTIES OF CELLULOSE-BASED EXTRACTED FROM NATA DE COCO 从椰子树中提取纤维素的机械性能

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3884

Sherlyna Pertiwi, Malemta Tarigan, M. Harahap, Adiansyah

引用次数: 1

PENENTUAN KADAR RESIDU PESTISIDA PROFENOFOS PADA TANAMAN TOMAT GAFHA DENGAN METODE GAS CHROMATOGRAPHY 用色素法测定GAFHA西红柿的原酚农药残留水平

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3869

Renny Futeri

{"title":"PENENTUAN KADAR RESIDU PESTISIDA PROFENOFOS PADA TANAMAN TOMAT GAFHA DENGAN METODE GAS CHROMATOGRAPHY","authors":"Renny Futeri","doi":"10.51544/kimia.v7i1.3869","DOIUrl":"https://doi.org/10.51544/kimia.v7i1.3869","url":null,"abstract":"Research on determination of Profenofos Pesticide Residue Levels on Agafha Tomatoes Using Gas Chromatography Method has been carried out. The purpose of conducting research on samples of tomatoes that are often consumed by the community is to find out whether the tomato plants are suitable for consumption by the community or whether they have a negative impact if consumed frequently and to find out whether the tomato samples reach the maximum residue limit that has been set. After analyzing the Agaftha tomato samples in the pesticide laboratory, data was obtained that the Agaftha tomatoes contained prefenofos pesticide residues with a concentration of 0.0805 mg/kg, and the results of this test stated that the Agaftha tomato samples could be consumed properly because the concentration did not exceed the maximum residue limit. Prefenofos residue is regulated in the Regulation of the Minister of Agriculture of the Republic of Indonesia Number 55/PERMENTAN/KR.040/11/2015. The maximum residue limit (BMR) for the active ingredient profenofos is 10 mg/Kg. Hence, it can be concluded that the Agaftha tomato sample is suitable for consumption because the concentration of residue levels in the Agaftha tomato sample is lower than the BMR which has been regulated in the Regulation of the Minister of Agriculture of the Republic of Indonesia.","PeriodicalId":332205,"journal":{"name":"JURNAL KIMIA SAINTEK DAN PENDIDIKAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126164078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PENENTUAN JENIS MEDIA TERHADAP EFEKTIVITAS PERTUMBUHAN JAMUR TRICHODERMA HARZIANUM 确定一种介质对哈兹亚南菌生长有效性的影响

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3909

Pevi Riani, Renny Futeri

引用次数: 0

IDENTIFIKASI ANALISIS KADAR KARBOHIDRAT DAN KADAR GULA REDUKSI METODE LUFF SCHOORL DARI HIDROLISIS SELULOSA LIMBAH MENGKUDU (Morinda citrifolia L.) 分析碳水化合物和糖还原法的姜黄水溶方法(Morinda citrifolia)。

JURNAL KIMIA SAINTEK DAN PENDIDIKAN Pub Date : 2023-06-14 DOI: 10.51544/kimia.v7i1.3942

N. Sari

引用次数: 0