This research examines the principles of qaulan maysura in Gus Iqdam's lectures through Tafsir Asy-Sya'rawi approach, with a focus on its relevance and application contemporary da'wah. Qaulan or "gentle words" is communication ethic recommended Koran, which emphasizes importance gentleness, friendliness ease conveying religious messages. The method used content analysis, lecture videos YouTube as main source, supplemented references from various sources commentary da'wah literature. Through...

This research explores the formulation of sustainable and high-performance greases utilizing waste transformer oil (WTO) as a base material incorporating additives such molybdenum disulphide (MoS2), polytetrafluoroethylene (PTFE), fumed silica. The study involves meticulous process, including pre-treatment WTO, grease production, blending additives, thorough characterization. Various tests, consistency, dropping point, bleeding, FTIR analysis, provide comprehensive insights into thermal...

Concerns about the dwindling supply of mineral oil, which is heavily used in products like grease, have prompted exploration Waste Cooking Oil (WCO) as a viable alternative. WCO, derived from improperly disposed vegetable focus this study, aims to produce grease using Fumed Silica (F.S.) thickener. The process involves heating and filtering WCO reduce moisture content remove impurities, followed by formulation with additives homogenizer at 5000 rpm for three hours, then cooling week....

This study aimed to formulate fumed silica (FS) grease using waste transformer oil (WTO) and investigate the properties. Various unexplored application of reused WTO due its reusable characteristic. fresh (ITO) were used as base fluid properties evaluated ASTM International standards SKF's Grease Test Kit. The chemical compound determined Fourier Transform-Infrared Spectroscopy at wavenumber 500–4000 cm−1. It was found that have high viscosity index 96 low moisture content 0.05% after...

The goal of this study was to the anti-wear properties grease formulated from waste engine oil (WEO) when additives are added. There were two types namely sodium and fumed silica (FS) greases. greases using a weight percentage ratio with without addition before attributes consistency, FTIR (Fourier transform infrared spectroscopy), analysis conducted. Results showed that did not affect except for as demonstrated by result. Sodium produced spectrum peak in region < 600 cm−1 analyzed FTIR....

This article aims to provide insights into the factors that contribute separation efficiency of solid particles. In this study, a pneumatic jigging technique was used assess waste materials consisted copper, glass and rubber insulator. Several initial experiments were carried out evaluate strengths limitations technique. It is found despite some technique, all samples prepared for successfully separated. The follow-up then further copper wire effects air flow pulse rates on process examined....

The present study was conducted to formulate sodium soap grease using waste engine oil (WEO). Greases were formulated by homogenizing thickener in WEO for 2 hours at 150°C Different composition of oil-to-thickener ratio designed which are 90/10, 80/20, 70/30 and 60/40. greases analysed conducting the consistency, bleeding, separation FTIR characterization tests. found that can be percentage have significant effect on properties. Grease with 70 – 80% base 20 30% best as it shows desirable

Abstract Spent caustic is a waste generated by petrochemical refineries, which used to eliminate acid components such as hydrogen sulphide (H 2 S) and mercaptans from the refined product streams. A study was carried out on simulation optimization of spent wastewater treatment system using Aspen Plus based wet air oxidation (WAO) method. WAO method uses under elevated temperature pressure carry in aqueous phase. Process flow diagram (PFD) drawn relevant input data keyed according experimental...

A large number of bifunctional ionic liquid extractant with ammonium-based have been formulated to separate and extract rare earth (RE) ions better extraction efficiencies selectivities compared conventional extractant. In this paper, a methodical study for the separation samarium from mixture samarium, europium, gadolinium using liquid, [A336][P204] was developed. The optimum condition explored in regard concentration type acid as well organic aqueous ratio mixture. sum scrubbing stages are...

Abstract Grease is known as a lubricating material in form of solid to semisolid mixture which produced with the combination base oil (80% - 95%), thickener (2% 15%) and additive (0% 10%). The limitation soap grease performances well volatile prices worldwide has led interest seeking alternative formulation. This research focusing on formulation non-soap based from waste transformer (WTO) by two types thickeners, i.e. fumed silica bentonite. prepared using different ratios WTO ranging 90:10...

Lubricating grease is usually produced from mineral oil, making the relationship between and oil unavoidable. Formulation of waste can reduce dependency industry on as well help to generation used oil. This study aims produce fumed silica (FS) engine (WEO) analyse properties formulated grease. The method started with treating WEO remove any contaminants in After that, greases are using a weight percentage ratio before being examined for consistency, separation, bleeding, FTIR (Fourier...

The aim of this research was to characterize and analyze the formulation emulsified modification bitumen (EMB) as well industrial wastes used in formulation. Bitumen being a non-renewable product with severe environmental issues arising lately led use such plastic recycled base oil research. Physical characteristic studies were performed decomposition temperature, boiling point, flash density, moisture content, element content waste plastics, flowability emulsion. Eight ratios modified...

In this study, waste cooking oil (WCO) with high free fatty acid (FFA) content was esterified to produce biodiesel, and the catalysts’ performance investigated. Two deep eutectic solvents (DESs) were employed as liquid catalysts (K2CO3-Gly KOH-Gly), while solid heterogeneous used spent bleaching earth (SBE), KCC-1, Na/KCC-1. DESs prepared by mixing at reaction temperature time of 80°C 120 min, respectively. The American Standard Testing Method (ASTM) D974 determined value. first screened for...

This paper presents a study about the potential of polyacrylic wig waste (PAWW) as an additive in road micro surfacing (RMS). The idea is to mix PAWW with bitumen produce polymer modified (PMB). available highest quality grade from industry 80-100 mm penetration unmodified or known modacrylic fiber that has different percentages Polyacrylic (PA) each sample. In this study, 3 ratios were tested which are 99:1, 96:4, and 93:7 %wt PAWW. prepared samples then by using test softening point test....

Hyperhydricity, an abnormal morphological appearance and physiological&lt;br /&gt;function, is important problem in carnation tissue culture. The causes premature flowering, high occurrence of shoots, difficulty transferring hyperhydric plantlets to soil, low survival rate plantlets. High relative humidity the water potential are considered as key factors involved abnormality. Furthermore, permeable culture vessel gelling agent were assured be treatment eliminate it. Objective this research...

Isoindoline-1,3-dione derivatives are important organic compounds associated with various interesting applications such as in the fields of material science, medicine, building blocks and so on.Traditionally, synthesis isoindoline-1,3-dione achieved using harmful toxic catalysts, concentrated sulphuric acid, triphenylphosphine, ionic liquid [bmim][BF 4 ] or phthalimide-N-sulfonic acid.Thus, development a greener catalytic system for is highly sought after.In this work, an efficient Water...

Abstract The influence of reaction pressure, time, temperature, and biomass‐to‐water mass ratio R on the conversion miscanthus biomass to biofuels under sub‐ supercritical water (SCW) conditions was investigated. highest total obtained SCW heating value increased subcritical conditions. findings herein show that near‐supercritical at 400 °C high pressure can be an effective medium for converting oils with relatively low oxygen contents in yields.