Results 11 to 20 of about 107,641 (143)

Optimization and Kinetics of Terbium Leaching from Lapindo Mud using Sulfuric Acid as the Leaching Agent

Bulletin of Chemical Reaction Engineering & Catalysis
This study investigated the impact of solid/liquid ratio, solvent concentration, temperature, and leaching time on the recovery of rare earth elements (REEs), particularly terbium, from Lapindo mud using sulfuric acid as a leaching agent.
Harry Supriadi, Suyanti Suyanti, Widi Astuti, Tri Handini, Vincent Sutresno Hadi Sujoto, Gyan Prameswara   +5 more
doaj   +3 more sources

Development of silica gel from Lapindo volcanic mud as fluorescent fingerprint powder based on methyl orange

South African Journal of Chemical Engineering
Fingerprint powder remains one of the most effective techniques for identifying individuals from their latent fingerprints. Visualizing latent fingerprints requires powder with high color contrast and strong adhesive to be easily applied on various ...
Qurrota A'yuni, Alfa Akustia Widati, Muchammad Tamyiz, Hartati Hartati, Rahma Yunia Utami, Mohamad Afiq Mohamed Huri, Axel Dimaz Sanusi Pasaribu   +6 more
doaj   +3 more sources

Transesterification of Used Cooking Oil Using CaO/MCM-41 Catalyst Synthesized from Lapindo Mud by Sonochemical Method

Indonesian Journal of Chemistry, 2017
Transesterification of waste cooking oil using CaO/MCM-41 synthesized from Lapindo mud by the sonochemical method has been carried out. The silica was separated from the mud by reflux method used 6 M HCl and 6 M NaOH.
Ida Bagus Putra Mahardika, Wega Trisunaryanti, Triyono Triyono, Dwi Putra Wijaya, Kumala Dewi   +4 more
doaj   +4 more sources

Petunia in Lapindo Mud Area as Verticultural Land

Nabatia, 2022
The area affected by the Lapindo mud is contaminated with heavy metals, one of which is lead (Pb) which is above the threshold of 3.0 mg/kg. The treatment is to apply a strategy through phytoremediation to minimize excess heavy metal content. One of the plants that is effectively used for phytoremediation is Petunia because it is resistant to heavy ...
Suci Putri Fetindah, Ardin Wira Yuda, null Mahendra   +2 more
openaire   +2 more sources

Performance of a Hybrid Catalyst from Amine Groups and Nickel Nanoparticles Immobilized on Lapindo Mud in Selective Production of Bio-hydrocarbons

Indonesian Journal of Chemistry, 2022
In the present work, optimum conditions for hydrocracking of waste palm cooking oil (WPCO) over a Ni-NH2/Lapindo mud catalyst were studied to obtain a high quantity and quality of biofuel.
Wega Trisunaryanti, Salma Nur Azizah, Dyah Ayu Fatmawati, Triyono Triyono, Novia Cahya Ningrum   +4 more
doaj   +2 more sources

The Utilization of Lapindo Mud Waste for Aluminium Sulfate Production

International Journal of Eco-Innovation in Science and Engineering, 2021
The Lapindo mudflow disaster in East Java Province, or also known as LUSI (LUmpur “mud”-SIdoarjo) has become spectacular longest ongoing disaster in recent memory since 2006. The utilization of volcanic Lapindo mud could be the promising solution to prevent further environmental damage.
Lucky Indrati Utami, Tahan Simamora Rizaldi, Kindriari Nurma Wahyusi, Reva Edra Nugraha   +3 more
openaire   +2 more sources

Phospate Release Study on Silica Gel and Amino Silica Hybrid Sorbent from Lapindo Mud

Jurnal Akademika Kimia, 2022
This study discusses the rate of phosphate release in Silica Gel (SG) and Amino Silica Hybrid (ASH) sorbents using Lagergren pseudo-first Order Kinetic and Lagergren Pseudo-second Order Kinetic. ASH synthesis was done by adding a 3-aminopropyltriethoxysilane (APTES) modifier to sodium silicate from Lapindo Mud.
Ade I. Agipa, Muhamad F. Muarif
openaire   +2 more sources

Dark Tourism Opportunities and Challenges: A case study from Lapindo Mud Disaster

TRJ Tourism Research Journal, 2021
The purpose of this article is to analyze the opportunities and challenges of the potential dark tourism of Lapindo Mud, as well as to find out the practice of Lapindo Mud dark tourism because of the many irregularities that the authors found when conducting research. The methodology used is a qualitative method with a case study approach.
Faizzatun Nazira, Silma Nuril Jannah, Katerina Bataha   +2 more
openaire   +3 more sources

Synthesis and characterization of silica gel from Lapindo mud Sidoarjo

IOP Conference Series: Earth and Environmental Science, 2020
AbstractSilica gel was synthesized from Lapindo mud by the sol-gel process. XRF analysis confirmed that Lapindo mud contained silica (50%) which was major components, therefore Lapindo mud has great potential as a raw material for silica gel synthesis. Metal silicates commonly used as a precursor to prepare silica gel.
A Rahmayanti, Q A’yuni, H Hartati, P Purkan, I G Romanza   +4 more
openaire   +2 more sources

Screening for Anti Mycobacterium tuberculosis Activity of Streptomyces sp. from Lapindo Mud in Sidoarjo, Indonesia

Open Access Macedonian Journal of Medical Sciences, 2023
BACKGROUND: Streptomyces sp. from Indonesian soil have not been explored and isolated to find new strains as a source of antibiotics for the treatment of tuberculosis (TB) disease. AIM: In this study, the effect of Streptomyces spp. from Lapindo mud in Sidoarjo, Indonesia be observed, to find out whether Streptomyces spp. has anti-TB activity. METHODS:
Rochmah Kurnijasanti, Muhammad Rais, Sri Agus Sudjarwo   +2 more
openaire   +2 more sources