scholarly journals Generalized Method of Calculation of Modified Spectrum Water

2020 ◽  
Vol 9 (5) ◽  
pp. 2342-2345
Keyword(s):  
Water Quality ◽  
High Performance ◽  
Sampling Methods ◽  
Water Sampling ◽  
Water Safety ◽  
Water Quality Control ◽  
Method Of Calculation ◽  
Joint Characteristics ◽  
Uv Visible ◽  
Absolute Measurements

The article is devoted to the development of a generalized methodology for calculating the joint characteristics of the effect of modified spectrum water. Water quality control is important to recognize because of water pollution and disease. A framework for a review of water quality should be defined to ensure that if water quality is measured as appropriate, it should be expected. Basically, water quality monitors to ensure water safety are both sleepy and standard waters nearby and global. Various water sampling methods and technology can be used to determine the level and quantity of a chemical in water as test water. The article describes how to prepare water used in hydrogen generators, to prepare solutions, chromatographic samples, capillary electrophoresis, high performance liquid chromatography (HPLC), and other analyzers that require the use of high purity water. The study showed that the use of spring water with a modified spectrum leads to positive statistically significant changes. The article presents results according to the absolute measurements of the luminosity of water. As a result of the calculations, graphical dependencies of the joint characteristics of the efficiency of using spectrograph. A CDS / (Pt-TiO2) pumice was created without creating a Titania composite in the pumice in accordance with the floating coating, so that photocatalysis did not cause problems in the separation of the titanium solution. European Microscopy Emission Range (FESEM), Microscope Transmission (TEM), Used UV Visible Diffusion Spectroscopy (UV-Vis DRS), such as Photocatalyst Characterization.

Влияние экологического состояния водоисточника на режим работы водопроводных очистных сооружений

2020 ◽  
Author(s):  
P. Bykova ◽  
I. Egorova ◽  
A. Strelkov ◽  
L. Talovyria ◽  
O. Nesterenko ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Reservoir ◽  
Water Source ◽  
Optimal Dose ◽  
Source Water ◽  
Regulatory Requirements ◽  
Water Quality Control ◽  
Water Abstraction ◽  
The City

При изучении качества воды источника водоснабжения г. Самары Саратовского водохранилища особое внимание было уделено основным показателям, влияющим на выбор реагентной обработки: мутность, перманганатная окисляемость и цветность. Сезонные изменения качества воды водохранилища требуют постоянной корректировки дозы реагентов с целью достижения нормативных требований к качеству очищенной воды. Приводятся результаты производственных исследований изменения качества воды Саратовского водохранилища в створе водозаборов г. Самары за 20172019 годы по мутности, перманганатной окисляемости и цветности. В связи с аномальными температурными перепадами и наступлением осеннего паводка (конец декабря 2019 г. и январь 2020 г.) резко изменилось качество воды водохранилища по цветности и перманганатной окисляемости. Отмечено, что увеличение указанных показателей потребовало повышения дозы реагентов при очистке исходной воды. Оптимальная доза реагентов постоянно коректируется в зависимости от состава исходной воды на флокуляторе Lovibond ЕТ-750 . Регулярное проведение пробного коагулирования позволило поддерживать качество очищенной воды в соответствии с нормативными требованиями СанПиН 2.1.4.1074-01 Питьевая вода. Контроль качества , кроме цветности и железа общего, так как превышение этих показателей наблюдалось в пределах погрешности методов измерения.While studying the water quality of the water source of the city of Samara the Saratov water reservoir, special attention was paid to the main indicators that influence the choice of chemical treatment: turbidity, permanganate index and color. Seasonal changes in the water quality of the water reservoir require constant adjustment of the chemical dose in order to meet the regulatory requirements to the quality of treated water. The results of the studies of changes in the water quality of the Saratov reservoir at the water abstraction points of the city of Samara for 20172019 by turbidity, permanganate index and color are presented. Due to the abnormal temperature differences and onset of autumn flood (end of December 2019 and January 2020), the water quality in the water reservoir dramatically changed in color and permanganate index. It was noted that an increase in these indicators required an increase in the dose of chemicals during the source water purification. The optimal dose of chemicals is selected with Lovibond ET-750 flocculator depending on the composition of the source water. Regular test coagulation allowed maintaining the quality of purified water in accordance with the regulatory requirements of SanPiN 2.1.4.1074-01 Drinking water. Quality control , except for color and total iron since the values of these indicators were increased within the measurement accuracy.

High performance UV–visible avalanche photodetector based on single α-MoO3 microbelt/p-Si heterostructure

2021 ◽  
Vol 44 (3) ◽  
Author(s):  
Yi Tian ◽  
Naisen Yu ◽  
Shiyu Du ◽  
Dedi Liu ◽  
Yunfeng Wu
Keyword(s):  
High Performance ◽  
Uv Visible

scholarly journals Electron generation in water induced by magnetic effect and its impact on dissolved oxygen concentration

2021 ◽  
Vol 31 (1) ◽  
Author(s):  
Augustine Chung Wei Yap ◽  
Hwang Sheng Lee ◽  
Joo Ling Loo ◽  
Nuruol Syuhadaa Mohd
Keyword(s):  
Water Quality ◽  
Hydrogen Bonding ◽  
Dissolved Oxygen ◽  
Electron Density ◽  
Water Flow ◽  
Magnetic Effect ◽  
Water Quality Control ◽  
Electron Generation ◽  
Magnetic Effects ◽  
Do Concentration

AbstractpH, oxidation-reduction potential (ORP) and dissolved oxygen (DO) concentration are important parameters in water quality surveillance and treatment. The changes of these parameters are associated with electron density in water. Several techniques including electrolysis and catalysis which require redox reactions and electron exchange are employed to improve these parameters. In recent years, studies reported that magnetic effects can impart considerable changes on the pH, ORP and DO concentration of water. However, the correlation between electron density and magnetic effects on these parameters has yet to be disclosed despite the fact that increased electron density in water could improve water’s reductive properties, heat capacity and hydrogen bonding characteristics. In this study, the magnetic effects on pH, ORP and DO concentration were investigated using different magnets arrangements and water flow rates based on reversed electric motor principle. Results showed that the improvement of pH, ORP and DO concentration from 5.40–5.42 to 5.58–5.62 (+ 3.5%), 392 to 365 mV (− 6.9%), and 7.30 to 7.71 mg L− 1 (+ 5.6%), respectively were achieved using combined variables of non-reversed polarity magnet arrangement (1000–1500 G magnetic strength) and water flow rate of 0.1–0.5 mL s− 1. Such decrement in ORP value also corresponded to 8.0 × 1013 number of electron generation in water. Furthermore, Raman analysis revealed that magnetic effect could strengthen the intermolecular hydrogen bonding of water molecules and favor formation of smaller water clusters. The findings of this study could contribute to potential applications in aquaculture, water quality control and treatment of cancer attributed to free radical induced-oxidative stress.

IOT based water quality control and filteration system

2021 ◽  
Author(s):  
G. Manoj Kumar ◽  
S.E. Gouthem ◽  
A. Srithar ◽  
V. Surya Prakash
Keyword(s):  
Water Quality ◽  
Quality Control ◽  
Water Quality Control
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