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1. Process optimization, texture and microstructure of novel kelp tofu

Author:
Xianjiang Ye; Li Chen; Zhichen Su; Xiaojuan Lin; Jicheng Chen
Source:
Food science and human wellness 2023 v.12 no.1 pp. 111-118
ISSN:
2213-4530
Subject:
gypsum,   etc   ; Saccharina japonica; enzymes; food science; humans; hydrolysates; macroalgae; medicine; microstructure; peptides; sensory evaluation; temperature; texture; tofu; traditional foods;     Show all 15 Subjects
Abstract:
... Laminaria japonica Aresch as an edible and medicine dual-purpose marine algae, has been gradually accepted by people. Tofu was Chinese traditional food, combining kelp function ingredients with tofu has practical value. The extraction-optimization methodology and the sequences of kelp antihypertensive peptide (KAP) were investigated. The sensory, whiteness, water retention ability (WRA) and micros ...
DOI:
10.1016/j.fshw.2022.07.029

2. Stepwise recycling of Fe, Cu, Zn and Ni from real electroplating sludge via coupled acidic leaching and hydrothermal and extraction routes

Author:
Zhang Yuxin; Su Ting; Chen Hongyu; Zhang Ying; Geng Zhi; Zhu Suiyi; Xie Xinfeng; Zhang Hong; Gao Yidi; Huo Yang
Source:
Environmental research 2023 v.216 pp. 114462
ISSN:
0013-9351
Subject:
gypsum,   etc   ; copper sulfate; flocculants; hematite; hydrolysis; industry; leachates; nanorods; nitrates; nitric acid; phosphates; phosphoric acid; pollution; research; sludge; solid wastes; sucrose; sulfides; wastewater;     Show all 19 Subjects
Abstract:
... Fe/S-bearing erdite flocculant has been proven to be effective in the precipitation of heavy metals from real electroplating wastewater, with the only drawback being the huge production of sludge. This sludge was rich in Fe/S/Zn/Cu/Ni and refractory to be recycled due to the extractant pollution by free Fe and the dissolution of sulphide. Herein, a multistep separation method was developed to diss ...
DOI:
10.1016/j.envres.2022.114462

3. Hydrogeochemical evolution induced by long-term mining activities in a multi-aquifer system in the mining area

Author:
Chenyu Wang; Fu Liao; Guangcai Wang; Shen Qu; Hairu Mao; Yunfei Bai
Source:
Science of the total environment 2023 v.854 pp. 158806
ISSN:
0048-9697
Subject:
gypsum,   etc   ; Carboniferous period; Ordovician period; Permian period; aquifers; carbonates; coal; environment; evolution; groundwater; groundwater flow; hydrogeochemistry; limestone; oxidation; oxygen; pyrite; resource management; sandstone; sulfates; sulfur; China;     Show all 21 Subjects
Abstract:
... The hydrogeochemical evolution of groundwater is related to and affected by long-term mining activities, which may deteriorate the quality of groundwater. The Fengfeng mine in Handan, North China has a 30-y history of coal mining with long-term mining activities and complex geological conditions, resulting in a complex hydrogeochemical environment in the mining region. In this study, the hydrogeoc ...
DOI:
10.1016/j.scitotenv.2022.158806

4. Surfactant Adsorption to Gypsum Surfaces and the Effects on Solubility in Aqueous Solutions

Author:
Galip Yiyen; Kodie V. Duck; Robert A. Walker
Source:
Langmuir 2022 v.38 no.9 pp. 2804-2810
ISSN:
1520-5827
Subject:
gypsum,   etc   ; adsorption; evaporation; solubility; spectroscopy; titration;     Show all 6 Subjects
Abstract:
... Vibrational sum frequency generation (VSFG) spectroscopy, conductometric titration measurements, and EDX elemental mapping were used to examine surfactant adsorption to the gypsum (010) surface and assess the effects of surfactant adsorption on gypsum solubility in aqueous solutions. Sodium dodecyl sulfate (SDS) and dodecyltrimethylammonium chloride (DTAC) were used as anionic and cationic surfact ...
DOI:
10.1021/acs.langmuir.1c02890

5. Chemical and isotopic evidences on evaporite dissolution as the origin of high sulfate water in a karst geothermal reservoir

Author:
Yifan Bao; Zhonghe Pang; Tianming Huang; Yiman Li; Jiao Tian; Ji Luo; Tingqing Qian
Source:
Applied geochemistry 2022 v.145 pp. 105419
ISSN:
0883-2927
Subject:
gypsum,   etc   ; carbonates; evolution; hydrogeochemistry; karsts; sulfates; therapeutics; China;     Show all 8 Subjects
Abstract:
... Using multiple isotopes including ⁸⁷Sr/⁸⁶Sr in water, δ³⁴SSO₄, δ¹⁸OSO₄, δ¹⁸OH₂O and δ²HH₂O, δ¹³CDIC and ¹⁴CDIC in water, we have investigated the origin and evolution of sulfate concentration (1472 mg/L) in the Tangquan Karst geothermal system in Nanjing, China. The sulfate has been found to be mainly derived from dissolution of gypsum and other evaporite minerals occurring in the carbonate reserv ...
DOI:
10.1016/j.apgeochem.2022.105419

6. Gypsum scaling mechanisms on hydrophobic membranes and its mitigation strategies in membrane distillation

Author:
Songchen Xie; Zhixia Li; Ngie Hing Wong; Jaka Sunarso; Dunshang Jin; Lixin Yin; Yuelian Peng
Source:
Journal of membrane science 2022 v.648 pp. 120297
ISSN:
0376-7388
Subject:
gypsum,   etc   ; crystallization; distillation; hydrophobicity; hypersalinity; porosity; wastewater treatment;     Show all 7 Subjects
Abstract:
... Mineral scaling is one of the significant obstacles in hypersaline wastewater treatment using membrane distillation (MD) technology. A deeper understanding of the scaling mechanism can help to solve mineral scaling problems. This work investigated three porous membranes with different surface pore sizes and hydrophobic properties, i.e., PTFE-0.22, PTFE-0.10, and PVDF-0.22, used in the direct-conta ...
DOI:
10.1016/j.memsci.2022.120297

7. Improved gypsum plaster by incorporation of zinc oxide nanoparticles (ZnO-NPs)

Author:
Guilherme Donizeti da Silva; Jacqueline Roberta Tamashiro; Bruna Letícia Martins; Geisiany Maria de Queiroz-Fernandes; Marcia Rodrigues de Morais Chaves; Regina Helena Pires; Angela Kinoshita
Source:
Journal of materials science 2022 v.57 no.4 pp. 2697-2709
ISSN:
0022-2461
Subject:
gypsum; gypsum board,   etc   ; Aspergillus niger; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; antimicrobial properties; biofilm; minimum inhibitory concentration; plaster; sodium hydroxide; zinc oxide;     Show all 12 Subjects
Abstract:
... Gypsum plaster is used in linings, coatings, decorative elements, and sealing and is a component of drywall. However, it is susceptible to the development of mold and other microorganisms, especially in hot and humid environments with poor ventilation and sunshine. In order to provide antimicrobial activity to the gypsum, zinc oxide nanoparticles (ZnO-NPs) were added to its matrix. Two types of Zn ...
DOI:
10.1007/s10853-021-06747-8

8. Quantitative Estimation of Saline-Soil Amelioration Using Remote-Sensing Indices in Arid Land for Better Management

Author:
Hesham M. Aboelsoud; Mohamed A. E. AbdelRahman; Ahmed M. S. Kheir; Mona S. M. Eid; Khalil A. Ammar; Tamer H. Khalifa; Antonio Scopa
Source:
Land 2022 v.11 no.7 pp. -
ISSN:
2073-445X
Subject:
gypsum; gypsum requirement,   etc   ; agricultural land; arid lands; humans; models; rain; remote sensing; salinity; sodicity; soil electrical conductivity; soil salinity; spatial data; water requirement;     Show all 14 Subjects
Abstract:
... Soil salinity and sodicity are significant issues worldwide. In particular, they represent the most dominant types of degraded lands, especially in arid and semi-arid regions with minimal rainfall. Furthermore, in these areas, human activities mainly contribute to increasing the degree of soil salinity, especially in dry areas. This study developed a model for mapping soil salinity and sodicity us ...
DOI:
10.3390/land11071041

9. Karst Brackish Springs of Albania

Author:
Romeo Eftimi; Mario Parise; Isabella Serena Liso
Source:
Hydrology 2022 v.9 no.7 pp. -
ISSN:
2306-5338
Subject:
gypsum,   etc   ; air temperature; carbonate rocks; carbonates; groundwater; karsts; Albania;     Show all 7 Subjects
Abstract:
... The territory of Albania presents wide outcrops of soluble rocks, with typical karst landforms and the presence of remarkable carbonate aquifers. Many karst areas are located near the coasts, which results in a variety of environmental problems, mostly related to marine intrusion. This paper focuses on the brackish springs of Albania, which exhibit temperatures approximately equal to the yearly ai ...
DOI:
10.3390/hydrology9070127

10. Isotope composition (δ34S, δ18O) of the Middle Triassic-Early Jurassic sulfates in eastern Iberia

Author:
F. Ortí; A. Pérez-López; F. Pérez-Valera; C. Benedicto
Source:
Sedimentary geology 2022 v.431 pp. 106104
ISSN:
0037-0738
Subject:
gypsum,   etc   ; Hettangian age; Triassic period; anhydrite; basins; sulfates; Iberian Peninsula;     Show all 7 Subjects
Abstract:
... This study combines published isotope data (223 samples) with new data (153 samples) on the δ³⁴S and δ¹⁸O composition of Ca-sulfate rocks (anhydrite and secondary gypsum) accumulated in eastern Iberia during the Middle Triassic to Early Jurassic. The δ³⁴S mean values of the evaporite units reveal the following trends: a decrease from the lower Anisian (~18‰) to the Carnian-Norian interval (~15‰); ...
DOI:
10.1016/j.sedgeo.2022.106104

11. Gypsum endemics accumulate excess nutrients in leaves as a potential constitutive strategy to grow in grazed extreme soils

Author:
Andreu Cera; Gabriel Montserrat‐Martí; Rebecca E. Drenovsky; Alain Ourry; Sophie Brunel‐Muguet; Sara Palacio
Source:
Physiologia plantarum 2022 v.174 no.4 pp. e13738
ISSN:
0031-9317
Subject:
gypsum,   etc   ; elemental composition; herbivores; indigenous species; phytomass; soil; sulfates; sulfur;     Show all 8 Subjects
Abstract:
... Extreme soils often have mineral nutrient imbalances compared to plant nutritional requirements and co‐occur in open areas where grazers thrive. Thus, plants must respond to both constraints, which can affect nutrient concentrations in all plant organs. Gypsum soil provides an excellent model system to study adaptations to extreme soils under current grazing practices as it harbours two groups of ...
DOI:
10.1111/ppl.13738

12. How to ensure water supply to natural plants? The contribution of sensor technology

Author:
Luigi Campanella; Hermine A. Jiofack Tenkeu; Mauro Castrucci; Emanuele Dell’Aglio
Source:
Natural product research 2022 v.36 no.7 pp. 1874-1877
ISSN:
1478-6427
Subject:
gypsum,   etc   ; cosmetics; drugs; green infrastructure; humans; research; soil; water supply;     Show all 8 Subjects
Abstract:
... Plants contribute to increase our green space and to produce natural compounds and substances to be applied to many fields of human activity, from foods to pharmaceuticals, from cosmetics to environment. Sensor technology can contribute to ensure living conditions to plants starting from the monitoring of water mobility within soil. A sensor based on a gypsum crystal is here proposed and validated ...
DOI:
10.1080/14786419.2020.1808641

13. Lithobiotic Communities on the Surface of Rock Art Monuments in the Minusinsk Basin (South Siberia): Conditions for Formation and Biomineral Interactions

Author:
K. V. Sazanova; D. Yu. Vlasov; M. S. Zelenskaya; E. G. Panova; O. A. Rodina; E. A. Miklashevich
Source:
Contemporary problems of ecology 2022 v.15 no.3 pp. 222-235
ISSN:
1995-4255
Subject:
gypsum,   etc   ; Siberia; basins; biofilm; biofouling; color; organic matter; sandstone; solar radiation;     Show all 9 Subjects
Abstract:
... Different types of biomineral layers have been identified and characterized on the monuments of rock art in Minusinsk Basin. On the surface of the sandstone (on which images were applied in ancient times), cyanobacterial biofilms and biofouling with the dominance of lichens, mosses, and primary soils have developed, and mineral crusts have formed that are to a greater or lesser extent inhabited by ...
DOI:
10.1134/S1995425522030118

14. Development of a Safe and Environmentally Friendly Sulfate Process for the Production of Titanium Oxide

Author:
Mohammad Hasan Sadeghi; Mohsen Nasr Esfahany
Source:
Industrial & engineering chemistry process design and development 2022 v.61 no.4 pp. 1786-1796
ISSN:
1520-5045
Subject:
gypsum,   etc   ; hydrolysis; neutralization; process design; sulfates; sulfuric acid; titanium; titanium dioxide;     Show all 8 Subjects
Abstract:
... The current research was aimed at developing a safe and more environmentally friendly sulfate process for the production of titanium oxide. In this process, to leach titanium from ilmenite by relatively dilute sulfuric acid (50 wt %), a two-step leaching scheme using a series of stirred tank reactor (STR) and vertical stirred media reactors (SMRs) was devised for carrying out the chemical reaction ...
DOI:
10.1021/acs.iecr.1c03364

15. Distinct impacts of natural organic matter and colloidal particles on gypsum crystallization

Author:
Tianchi Cao; Julianne Rolf; Zhangxin Wang; Camille Violet; Menachem Elimelech
Source:
Water research 2022 v.218 pp. 118500
ISSN:
0043-1354
Subject:
gypsum,   etc   ; adsorption; calcium sulfate; crystallization; heat; humic acids; research; rivers; water;     Show all 9 Subjects
Abstract:
... Gypsum scaling via crystallization is a major obstacle limiting the applications of membrane-based technologies and heat exchangers in engineered systems. Herein, we perform the first comparative investigation on the impacts of natural organic matter (Suwannee River humic acid, SRHA) and colloidal particles on the gypsum crystallization process in terms of induction time and crystal morphology. Re ...
DOI:
10.1016/j.watres.2022.118500

16. Viruses Ubiquity and Diversity in Atacama Desert Endolithic Communities

Author:
Leora Busse; Mike Tisza; Jocelyne DiRuggiero
Source:
Viruses 2022 v.14 no.9 pp. -
ISSN:
1999-4915
Subject:
gypsum,   etc   ; CRISPR sequences; arid lands; calcite; ecology; metagenomics; viral genome; viruses;     Show all 8 Subjects
Abstract:
... Viruses are key players in the environment, and recent metagenomic studies have revealed their diversity and genetic complexity. Despite progress in understanding the ecology of viruses in extreme environments, viruses’ dynamics and functional roles in dryland ecosystems, which cover about 45% of the Earth’s land surfaces, remain largely unexplored. This study characterizes virus sequences in the ...
DOI:
10.3390/v14091983

17. The short-term effects of surface-applied dolomitic lime and gypsum on soil chemical properties and yields of sugarcane ratoon crops in KwaZulu-Natal, South Africa

Author:
Sandile Siphesihle Mthimkhulu; Dimpho Elvis Elephant; Neil Miles; Louis William Titshall
Source:
South African journal of plant and soil = 2022 v.39 no.2 pp. 102-111
ISSN:
2167-034X
Subject:
gypsum,   etc   ; calcium; dolomitic limestone; magnesium; soil pH; sucrose; sugarcane; topsoil; South Africa;     Show all 9 Subjects
Abstract:
... This study investigated the effects of surface-application of lime and gypsum on soil properties and yields of ratoon sugarcane crops. Treatments involved once-off surface application of dolomitic lime (L), gypsum (G) and dolomitic lime plus gypsum (LG) in factorial combination, with four replications. Soil chemical properties were measured on samples collected at intervals of 20 between depths of ...
DOI:
10.1080/02571862.2022.2038711

18. Investigation of environmentally friendly gypsum based composites with improved water resistance

Author:
Magdaléna Doleželová; Jitka Krejsová; Lenka Scheinherrová; Martin Keppert; Alena Vimmrová
Source:
Journal of cleaner production 2022 v.370 pp. 133278
ISSN:
0959-6526
Subject:
gypsum,   etc   ; calcium hydroxide; ceramics; compression strength; dust; microstructure; prices; quartz; sand; slags;     Show all 10 Subjects
Abstract:
... The water resistance of gypsum based composites, prepared from composed binder and silica sand was investigated. The composed binder contained hemihydrate gypsum, lime hydrate and several supplementary cementitious materials (SCM). Silica fume, granulated blast slag and waste ceramic dust were used as SCM in order to compare materials of various origins with different pozzolan activity. Hydrated l ...
DOI:
10.1016/j.jclepro.2022.133278

19. A typical case study from smelter–contaminated soil: new insights into the environmental availability of heavy metals using an integrated mineralogy characterization

Author:
Da-Mao Xu; Rong-Bing Fu
Source:
Environmental science and pollution research 2022 v.29 no.38 pp. 57296-57305
ISSN:
0944-1344
Subject:
gypsum,   etc   ; bioavailability; biotite; case studies; oxidation; quartz; research; soil; soil pollution; sulfides;     Show all 10 Subjects
Abstract:
... Mineralogy was an important driver for the environmental release of heavy metals. Therefore, the present work was conducted by coupling mineral liberation analyzer (MLA) with complementary geochemical tests to evaluate the geochemical behaviors and their potential environmental risks of heavy metals in the smelter contaminated soil. MLA analysis showed that the soil contained 34.0% of quartz, 17.1 ...
DOI:
10.1007/s11356-022-19823-6

20. Archaeometric study of execution techniques of white Attic vases: the case of the Perseus crater in Agrigento

Author:
Gabriella Chirco; Monica de Cesare; Giacomo Chiari; Sarah Maaß; Maria Luisa Saladino; Delia Francesca Chillura Martino
Source:
RSC advances 2022 v.12 no.8 pp. 4526-4535
ISSN:
2046-2069
Subject:
gypsum,   etc   ; X-radiation; archaeology; color; fluorescence; infrared spectroscopy; museums; photography; ultraviolet radiation; Italy;     Show all 10 Subjects
Abstract:
... The white ground crater by the Phiale Painter (450–440 BC) exhibited in the “Pietro Griffo” Archaeological Museum in Agrigento (Italy) depicts two scenes from Perseus myth. The vase is of utmost importance to archaeologists because the figures are drawn on a white background with remarkable daintiness and attention to detail. Notwithstanding the white ground ceramics being well documented from an ...
DOI:
10.1039/d1ra06453c