This article discusses adsorbents used to reduce water and air pollution, which is one of the current problems of our time. The importance of adsorbents today has been studied. Methods of their production and sources of raw materials have been considered. Information is provided on the need to pay attention to the sufficiency of their sources, low cost, environmental safety, recyclability, and carbon content when choosing raw materials for obtaining adsorbents. Also, the raw material base of cotton stalks and cotton bolls selected for obtaining adsorbents in the republic has been studied. Methods for obtaining adsorbents by thermochemical activation based on cotton stalks and cotton bolls and determining the sorption activity of the obtained adsorbents are presented. The iodine number of adsorbents was used to determine the sorption properties of the obtained activated carbons. The iodine number of adsorbents obtained by thermochemical activation with solutions of NaOH and KOH of different concentrations was determined according to State Standard 33618-2015. Among them, adsorbents activated with 30% NaOH and KOH solutions showed good results in terms of sorption properties and economy. Based on these results, adsorbents with good results in terms of iodine number were selected for further analysis.
| Mualliflar | Kuchkarova, Durdona, Soliye, Mahammadjon, Ergashev, Oybek |
|---|---|
| Jurnal | Наманган муҳандисликтехнология институти илмийтехника журнали |
| Nashr sanasi | 2025-06-30 |
| Jild | 10 |
| Son | 2 |
| Betlar | 104-111 |
| Til | Ingliz |
| DOI | 10.61151/stjniet.v10i2.790 |
DOI: 10.61151/stjniet.v10i2.790 · Maqolaning asl sahifasi
Adsorbent, raw material, cellulose, сarbon, cotton, cotton stalk, pyrolysis, coal, NaOH, KOH, iodine number, titration, sorption property, thermal activation, thermochemical activation
This article presents experimentally obtained values of the differential enthalpy of methane thiol (methanethiol) adsorption in sodalite at a temperature of 303 K. The enthalpy values were measured using a Tian-Calvet…
This review article is devoted to chitosan-based nanofibers combined with synthetic polymers—promising materials with a wide range of applications in biomedicine, filtration, and food packaging. Modern methods for…
In recent years, the demand for environmentally friendly and economically efficient adsorbent materials has been steadily increasing. In this regard, the production of adsorbents from renewable resources—particularly…
This article presents the results of a study aimed at determining the expected economic efficiency in the production of cream-perfumed soaps based on non-traditional oil-based raw materials. The research includes data…
The composition of the essential oil and hexane extract of air-dried roots of Perovskia kudrjaschevii was studied using the GC-MS method. It was found that the main component of the essential oil is 1,8-cineole. Five…
This article studies the effect of solvent compositions obtained by mixing extraction gasoline with other organic solvents, especially ethanol and acetone, used in traditional technology for processing cottonseeds by…
Development of intensive productivity in modern conditions, creation of quickly and regularly productive varieties of agricultural crops, allowing to grow as much as possible and high-quality products per unit of sown…
This article analyzes the increasing economic activity of small and medium-sized enterprises (SMEs) in Uzbekistan under the conditions of globalization, with particular emphasis on the growing trend of outsourcing…
This work describes the synthesis of acetylene amino alcohols based on the aminomethylation of secondary acetylene alcohols in a 1,4-dioxane solvent medium, using formaldehyde and hydroxyl-containing or heterocyclic…
The article reflects a certain amount of dust from cotton, the problems of health care, the content of health care standards, the lack of compliance with the airspace, the atmosphere, low-quality effectiveness, and all…
Наманган муҳандисликтехнология институти илмийтехника журнали — barcha maqolalar