Lapindo mud (LM) is a volcanic from natural disaster that occurred 16 years ago in Sidoarjo District, East Java, Indonesia. The high amount of silica the local materials LM has been extracted for gel synthesis via hydrometallurgy methods, followed by sol-gel methods. presence ethanol process generated unique textural property at different ratios between and sodium silicate (e/ss). Sol-gel mediated exhibited mesoporous properties with an amorphous structure, which characteristic gel. exhibits...

Repeated use of cooking oil produces hazardous compounds such as free fatty acids, carbonyls, and peroxides. This study aims to examine the effectiveness turmeric a bio-adsorbent in reducing acid levels, peroxide numbers, water content used oil, determine appropriate adsorption isotherm model. Turmeric is one biopharmaceutical plants whose availability quite abundant Indonesia. Adsorption was carried out with variations adsorbent mass contact time. The result showed that effective value,...

Aluminosilicate and ZSM-5 catalyst were synthesized from local materials, low-grade Indonesian kaolin. High quartz impurities content in the kaolin was successfully reduced by consecutive treatment process including washing, centrifugation, Fe3+ treatment. All showed mesoporous structure with pore diameter around 3.5 nm. The catalytic activity investigated acetalization of 3,4-dimethoxybenzaldehyde propylene glycol, then effect a different base (TPAOH NaOH) addition to discussed....

Fingerprint powder remains one of the most effective techniques for identifying individuals from their latent fingerprints. Visualizing fingerprints requires with high color contrast and strong adhesive to be easily applied on various substrates. The utilization silica gel extracted local materials Lapindo volcanic mud can fluorescent fingerprint based methyl orange. was synthesized by sol-gel method, followed impregnation orange as a dye varying loads. powders exhibit an amorphous structure...


 ABSTRAK
 Kebutuhan minyak goreng sawit di Indonesia terus meningkat dari tahun ke tahun. terbesar didominasi oleh penggunaan sebagai media untuk menggoreng makanan yang salah satunya yaitu jajanan (gorengan). Mayoritas pedagang gorengan tidak memperhatikan kualitas digunakan. Banyak membeli bekas (jelantah) demi mendapatkan keuntungan besar. Pada jelantah mengandung asam lemak bebas akibat pemanasan berkala berbahaya bagi tubuh. Oleh karena itu, pada penelitian ini dilakukan...

Marriage is the first step in forming a family. The expected family is, of course, filled with harmony presence children who become jewelry and conditioning hearts all parents. emergence rifts friction commonplace. However, level ability each person different. A harmonious to old age result his efforts maintaining relationships. On other hand, when damaged which leads divorce, it failure maintain In this case, main party harmed child. Where he had experience many changes life, especially...

Tambak Cemandi Village is an area located in the coastal of Sidoarjo Regency because it easternmost region and directly adjacent to Java Sea. The geographical location sea water a benefit for people look livelihoods as fishermen. In their work, fishermen are divided into several activities, there those who go out fish some dive specifically shellfish. shells meat taken further processing, while clamshell thrown away. This causes accumulation waste around residential areas so that makes dirty...

LaPO4 synthesis through the sol-gel method and of with addition templates hydrothermal have been successfully carried out.The used are hexamethylenetetramine (HMT) tetrabutylammonium bromide (TBABr).The concentration precursor, pH, aging time in can affect structure morphology LaPO4.In this study, ratio La 3+ : PO4 3-, were varied to obtain optimal condition method.The optimization results show that is formed at pH 9, moles :PO4 3-is 1:1, 72 h.The obtained solids characterized by X-ray...

Lanthanum phosphate (LP) has been synthesized by sol-gel method at room temperature. The catalyst was characterized X-ray diffraction (XRD), Fourier Transform Infrared (FTIR), pyridine adsorption FTIR, N 2 adsorption-desorption and SEM-EDX. XRD results show that LP a hexagonal structure. FTIR spectra of showed O=P-O bending vibrations, P-O vibrations (from tetrahedral distortion), symmetrical strain PO 4 3- each which the appearance peak 613, 530-620, 950 538-621 cm -1 . presence OH...

A high humidity level in the environment leads to development of desiccants as hygroscopic material for adsorbing water vapor. Mesoporous silica xerogel, one solid adsorbents used adsorption, was synthesized from hazardous waste volcanic mud via sol-gel methods by controlling pH solution. The disordered amorphous obtained, with properties varied depending on Silica xerogel obtained at 8 exhibits highest specific surface area 576.527 m2g-1 and mesoporous 527.842 m2g-1. It also has adsorption...

<p>Penelitian ini bertujuan untuk mengetahui dan menganalisis pola kepemimpinan Kepala MAN Kisaran dalam melaksanakan pekerjaan, pendelegasian wewenang koordinasi kerja di Kabupaten Asahan. Metode penelitian menggunakan metode deskriptif kualitatif. Dengan teknik pengumpulan data melalui, wawancara, observasi dokumen terhadap informan kunci yang dianggap benar-benar dapat memberikan informasi mengenai orang, peristiwa atau hal dengan tidak mementingkan jumlah tetapi lebih bagaimana...

<p>Metil orange merupakan salah satu zat warna yang banyak digunakan di industri tekstil. Metil ini tergolong ke dalam berbahaya bagi lingkungan. Salah metode baik untuk mengurangi bahaya dari metil yaitu adsorpsi. SiO<sub>2</sub> diketahui memiliki sifat adsorben karena struktur dan permukaan stabil terhadap bahan kimia. Lumpur Lapindo sumber keberadanya melimpah. Kandungan SiO<sub>2 </sub>pada yakni sebesar 55%. Tingginya kandungan Lapindo, membuat lumpur...

Abstract Silica gel was synthesized from Lapindo mud by the sol-gel process. XRF analysis confirmed that contained silica (50%) which major components, therefore has great potential as a raw material for synthesis. Metal silicates commonly used precursor to prepare gel. A mixed with an alkaline solution, stirred and heated metal silicates. Hydrochloric acid then slowly added solution obtain The pH 4 selected optimum in synthesis of purity determined shown 100 mL sodium hydroxide 6 M (4 h, 80...

The formation of quality human resources (HR) is influenced by many factors, one which about the health young people at best level. Borax a chemical compound derived from heavy metals boron (B). an anti-septic and bacterial killer. In Regulation Minister Health No. 722 / MenKes Per IX 88 borax stated as hazardous material prohibited to be used in making food. Bulusidokare Subdistrict, Sidoarjo area that close learning environments such schools Tutoring, so it vulnerable foods contain Food...

Telah dilakukan penelitian mengenai kemampuan pektin kulit jeruk manis (Citrus sinensis) sebagai biosorben logam Cr (VI) pada sampel air sungai Jagir. Penelitian ini untuk mengetahui daya serap optimum bubuk Cr(VI) menggunakan AAS (Atomic Absorption Spectroscopy). Kadar Jagir sebesar 0,2532 ppm dengan suhu 31°C dan pH 6,5. Setelah absorbsi didapat penyerapan adalah 98.06% variasi massa 1,5 gram waktu kontak selama 3 jam.

Rice bran as rice milling waste is very promising to be used raw material of oil producer such biodiesel oil. The production process by using microwaves has been studied in this research. was carried out in-situ where the extraction and formation reaction occured simultaneously microwave radiation. obtained from Lamongan area with IR 64 type. modified variation operating conditions on times (10, 30 50 min) weight ratio methanol (1:4, 1:8, 1:12, 1:16 1:20). results were then analyzed product...

As a means of disseminating information, new era media does not always have positive impact on the purpose da’wah. The era’s actually raises birth da’wah that is extreme, radical and far from meaning Islam as religion peace. Very few actors activists integrated prophetic ethics values in era. They use many utterances hatred (hatespeech) lies (hoaxes) to preach. This phenomenon very inversely proportional teachings friendly peaceful did Prophet Muhammad. Therefore, grounding prophetic-based...

AbstrakProses produksi biodiesel dari dedak padi dengan memanfaatkan microwave secara in situ telah berhasil dilakukan. Pengaruh jumlah metanol dan waktu reaksi terhadap kandungan FAMEs dalam produk dipelajari penelitian ini. Dedak , katalis basa berupa NaOH 0.6 w% dimasukkan ke labu alas datar dilengkapi kondensor reaktor yang dimodifikasi. Produk campuran FAMEs, gliserol, reaktan tidak bereaksi komponen lainnya kemudian dicuci menggunakan n- heksana dilanjut dilakukan proses distilasi....

Cangkringsari Village is located in Sukodono District, Sidoarjo Regency. This village has a population of 1729 people so it produces ± 517.8 kg / day waste. Waste management especially RW 3 carried out by the Berseri waste bank. garbage bank able to serve 66 households 125 households. Until now, administrative still done manually that administration runs slowly. In addition, lack understanding technology causes be less than optimal. To overcome these problems, method used this service...

Salah satu upaya pemeliharaan kesehatan pada masa darurat seperti pandemi Coronavirus Disease 2019 (COVID-19) saat ini dapat dilakukan dengan memanfaatkan bahan-bahan alam untuk diolah menjadi obat tradisional. Jamu sebagai salah jenis tradisional sekaligus warisan telah dimanfaatkan secara luas oleh masyarakat Indonesia mencegah penyakit dan merawat kesehatan. Kegiatan Pengabdian Kepada Masyaraka (PKM) bertujuan memberikan edukasi kepada terkait kandungan kimia khasiat empon-empon serta...

Community empowerment and household waste processing are two issues that need to be resolved by the government. An independent educated society is an important pillar support development of country. Meanwhile, continues accumulate without has a negative impact on health environment. Public education about can solution problems above. Education was carried out at Junior High School YBPK Surabaya residents Dukuh Kupang Surabaya, other participants who joined in hibrid meeting with total 116...

Addressing the challenge of clean energy and waste management for sustainable development goals, ZSM-5 were synthesized from high-abundance volcano mud (VM) precursor then utilized as catalyst in biodiesel production. Unlike conventional alkali treatment, we used reflux method to extract silica-alumina VM. K2CO3 salt was extractor, activator, structure-directing agent. The synthesis also performed using NaOH a comparison. Various analytical techniques employed including XRD, FTIR, SEM-EDX,...

The increasing awareness of sustainable development goals has led to the intensive biofuel as a substitute for fossil fuels. This study investigates potency volcano mud (VM) precursor in synthesizing aluminosilicate catalysts production. Three were synthesized, A3, A3T, and A5, manner investigate effect tetrapropylammonium hydroxide (TPAOH) addition hydrothermal time on crystallinity, Si/Al ratio, textural properties catalysts. catalytic activity synthesized was evaluated two different...

Tujuan pelatihan yaitu untuk membelajarkan kemampuan belajar bermakna dan mengajar sistematikc bagi mahasiswa prodi PGSD FKIP Universitas Muhammadiyah Palangkaraya sehingga sewaktu pembelajaran materi, siswa mudah menerima materi bersemangat dalam belajar. Peserta adalah yang berjumlah 51 orang terdiri dari dua kelas. Metode digunakan semua melakukan praksis berpikir analisis dengan melihat media gambar ditampilkan kemudian mempraktikkan melalui maju ke depan menulis white board apa dilihat...