Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)最新文献_第3页

Fabrication of Flat Tubular Clay-Based Porous Support Filters 扁管粘土基多孔支撑过滤器的制备

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.013

Dolgorjav Rentsendavaa, Saran Galdansambuu, Song In‐Hyuck

{"title":"Fabrication of Flat Tubular Clay-Based Porous Support Filters","authors":"Dolgorjav Rentsendavaa, Saran Galdansambuu, Song In‐Hyuck","doi":"10.2991/ahcps.k.211004.013","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.013","url":null,"abstract":"Mongolia has few freshwater resources. It is therefore important to conserve water resources. An efficient possibility is to purify water and reuse it. Therefore, the scientists from the Material Science Center of the Mongolian University of Science and Technology collaborated with the researcher from the Korea Institute of Material Science and carried out a project between 2017-2020. In this study, Mongolian zeolites and prepared kaolin were used and flat tubular porous support was extruded by a double screw vacuum extruder at KIMS. The supports were burned at 800 and 1000°C and the properties such as pore distribution were determined by mercury porosimetry. The zeolite-kaolin support had a bulk density of 1.46 g/cm, a porosity of 41.52% and, an average pore size of 218 nm. With its water permeability of 115 L/m·h at 0.01 MPa and 970 L/m·h at 0.08 MPa, the support achieved good results. The wastewater treatment tests show that these membranes also have good compressive strengths. We have cleaned the sewage from a leather factory, which was very highly contaminated and has high viscosity.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75887472","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

Corrigendum to “Characterization of Biochars Produced from Various Biowastes” “从各种生物废物产生的生物炭的特性”的勘误表

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.024

Bayarjargal Bayartsengel, Nomuunzaya Erdene-Ochir, Sainzaya Battulga, Saurjan Tyeliubek, Erdenedalai Jantsanpurev, B. Chuluun

引用次数: 0

Antioxidant and Antihypertensive Activity of Collagen and Elastin Hydrolysate at Different Molecular Weights 不同分子量胶原蛋白和弹性蛋白水解物的抗氧化和降压活性

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.004

B. Munkhuu, Lkhagvamaa Erdene, Zolzaya Bayarsukh, Enkh-Ariun Altantulga, Oyuntuya Baltsukh, Gan-Erdene Tudev, Ariun Narmandakh

{"title":"Antioxidant and Antihypertensive Activity of Collagen and Elastin Hydrolysate at Different Molecular Weights","authors":"B. Munkhuu, Lkhagvamaa Erdene, Zolzaya Bayarsukh, Enkh-Ariun Altantulga, Oyuntuya Baltsukh, Gan-Erdene Tudev, Ariun Narmandakh","doi":"10.2991/ahcps.k.211004.004","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.004","url":null,"abstract":"The angiotensin-converting enzyme (ACE) inhibitory activity and antioxidant property of collagen and elastin hydrolysates, and their peptide fractions (< 5 kDa, 5-10 kDa, 10-100 kDa) were compared. The bovine raw-hide and paddywhack (Ligamentum nuchae) were used for the preparation of collagen and elastin hydrolysates, respectively. Unfractionated collagen and elastin hydrolysates (4 mg/mL) could reduce ACE activity by 61% and 58%. As a result of fractionation, ACE inhibitory activity of collagen hydrolysate was increased up to 85%, while this effect was not observed on elastin hydrolysate. Elastin hydrolysate showed intense radical scavenging abilities through 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2′-Azinobis-(3-Ethylbenzthiazolin-6-Sulfonic Acid (ABTS) assay. The collagen hydrolysate obtained from the bovine rawhide has more perspective for the bioactive food additive having ACEI activity in comparison with the elastin hydrolysate.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78746942","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

Stimulation of Low-Temperature Dissolution of Organic Matter of Brown Coal, Composition of Bitumoids 褐煤有机质低温溶解的刺激作用及沥青混合物组成

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.016

S. Zherebtsov, K. Shpakodraev, N. Malyshenko, K. Votolin, Z. Ismagilov

{"title":"Stimulation of Low-Temperature Dissolution of Organic Matter of Brown Coal, Composition of Bitumoids","authors":"S. Zherebtsov, K. Shpakodraev, N. Malyshenko, K. Votolin, Z. Ismagilov","doi":"10.2991/ahcps.k.211004.016","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.016","url":null,"abstract":"The paper presents data on the yield, chemical composition of bitumen extracted from the brown coal of the Tyulgan deposit. Bitumens were extracted from brown coal by the following methods: I) sequential extraction with ethanol, n-heptane, alcohol-benzene according to the Grefe method, II) low-temperature dissolution of the organic mass of coal (OMC) by alkylation and subsequent extraction of bitumoids; III) stimulation of alkylation by ultrasound and subsequent extraction of bitumoids. It is shown that the use of ultrasonic exposure during the O-alkylation process has a positive effect on the yield of bitumoids the yield increased to 52%. The obtained samples were studied using the methods of IR spectroscopy, C NMR (CPMAS), gas chromatography-mass spectrometry (GC-MS). A number of individual compounds were identified in the composition of bitumen and bitumoids during the study by the GCMS method: gamma-tocopherol, Stigmast-4-en-3-one, betaHydroxyallobetulan, 1-Hexadecanol, Oleyl alcohol, etc. Among the identified compounds, various biologically active substances are present.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81030383","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

Characterization of Biochars Produced from Various Biowastes 不同生物废弃物制备生物炭的特性研究

Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021) Pub Date : 2021-01-01 DOI: 10.2991/ahcps.k.211004.012

Bayarjargal Bayartsengel, Nomuunzaya Erdene-Ochir, Sainzaya Battulga, Saurjan Tyeliubek, Erdenedalai Jantsanpurev, B. Chuluun

{"title":"Characterization of Biochars Produced from Various Biowastes","authors":"Bayarjargal Bayartsengel, Nomuunzaya Erdene-Ochir, Sainzaya Battulga, Saurjan Tyeliubek, Erdenedalai Jantsanpurev, B. Chuluun","doi":"10.2991/ahcps.k.211004.012","DOIUrl":"https://doi.org/10.2991/ahcps.k.211004.012","url":null,"abstract":"Biochar is a product of thermal degradation of organic materials in the absence of air (pyrolysis). Slowpyrolyzed and biowaste-derived biochars show excellent adsorption properties. Studies on biochars produced from pine nut shells, sawdust, and cow dung have been carried out in Mongolia determining the technical characteristics and applying for improvement of soil quality. However, a thorough characterization of biochars is still in lack. In this study, we produced 10 biochars from animal bones and dungs, and firewoods and compared their characterization properties. Physico-chemical parameters of biochars such as moisture, ash, volatile matters, fixed carbons, pH, redox potential (pE), electrical conductivity (EC), total dissolved solids (TDS), cation exchange capacity (CEC), and base saturation were determined and SEM-EDX, FTIR, XRD, main elements, and trace metals analysis were obtained. Methylene blue and iodine absorption tests were carried out in terms of surface porosity. All biochars showed high electrical conductivity and base saturation indicating that they were rich in cations. The highest values of pH, EC, TDS, and CEC were found in biochar produced from sheep dung. Among bone chars, biochar produced from sheep spine bone showed the highest CEC. High Ca content in bone biochars resulted from the nature of the raw material. Biochars hardly contained trace metals. XRD analysis showed that the firewood biochar had amorphous, whereas the bone biochars and dungs had crystal structures. Biochars produced from animal and forestry biowastes have shown great values of adsorbent characteristics, thus the application of such biochars can simultaneously reduce waste and be an environmentally friendly valuable product.","PeriodicalId":20562,"journal":{"name":"Proceedings of the 5th International Conference on Chemical Investigation and Utilization of Natural Resource (ICCIUNR-2021)","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84907204","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: 2