Water chemistry of the secondary circuit at a nuclear power station with a VVER power reactor

Tyapkov, V. F.; Erpyleva, S.F.

doi:10.1134/s0040601517050081

Cited by 9 publications

(3 citation statements)

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“…To begin with, ED's ability to remove pollutants is restricted. Because they are not driven to the membranes, pollutants with weak or nonexistent charge density, such as some organics, pyrogens, and elemental metals, cannot be removed by ED [21][22][23][24][25]. Second, ED necessitates the use of a professional operator as well as frequent protection.…”

Section: Electrodialysismentioning

confidence: 99%

Water Chemistry in Nuclear Power Plant

Nur Salam,

Rokonuzzaman

2023

Nuclear Power Plants - New Insights

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Water quality has long been an important part of the operation of nuclear power plants. Water is used as a working and cooling fluid in power plants. The quality of source waters to be used in the power plants after treatment should conform to the prescribed values of Physicochemical properties like pH, EC, TDS, alkalinity, hardness, presence of chloride content, silica, and heavy metals as recommended by technical guidelines. The Physicochemical properties of water must be recovered the recommended values of the World Health Organization (WHO), United States of Public Health (USPH), and power plant water chemistry guidelines. But the values of raw water are very far from the recommended values of Nuclear Power Plants operation. So, it needs to treat to use in the boilers. Gravitation, Carbon filtration, Ion exchange method, and Reverse Osmosis (RO) are good ways to treat the water before use in power plants. The aim of this chapter is to explore the water chemistry of the source water quality parameters values and those of the recommended values of technical guidelines.

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Section: Electrodialysismentioning

confidence: 99%

Water Chemistry in Nuclear Power Plant

Nur Salam,

Rokonuzzaman

2023

Nuclear Power Plants - New Insights

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“…The Silica found in the source water sample of PP1, PP2, and the NPP site were 28.8, 10, and 15 ppm respectively as shown in Figure 6 where the DM plant and the secondary circuit require relatively zero. Reverse Osmosis, Carbon filtration, and Gravitation are good ways to remove Silica from the water body [29][30].…”

Section: Total Hardness (Th)mentioning

confidence: 99%

An Analysis of Water Characteristics of Shiddhirganj 210MW Steam Power Plant, Sirajganj 225MW Combined Cycle Power Plants and Rooppur 2400MW Nuclear Power Plant in Bangladesh: A Comparative Study of Power Plant Grade Water

Salam¹,

Hasan

Rokonuzzaman

et al. 2022

IJEMM

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Water quality has long been an important part of the operation of nuclear and thermal power plants. Water is used as a working and cooling fluid in power plants. The quality of source water to be used in the power plants after treatment should conform to the prescribed values of Physico-Chemical properties like pH, EC, TDS, Alkalinity, Hardness, presence of Chloride content, Silica, and Heavy metals as recommended by technical guidelines. To analyze the water characteristics, water samples were collected from various sources. Two river water samples and a groundwater sample (marked as PP1, PP2, and NPP site) were tested to determine the water properties. The Physico-chemical properties of the water samples were determined using various analytical tests. Heavy metals were also investigated using the Atomic Absorption Spectrophotometric (AAS) process. The Physico-chemical properties of investigated samples were so good as to the recommended values of the World Health Organization (WHO), United States of Public Health (USPH), and Bangladesh Environmental Department. But the values were very far from the recommended values for thermal power plants operation. So, it needs to treat to use in the boilers. Gravitation, Carbon filtration, Ion exchange method, and Reverse Osmosis (RO) are good ways to treat the water before use in power plants. The Padma River water is better than the other two samples when the Physico-chemical characteristics of the sample waters were analyzed to the prescribed levels for the boiler water of a thermal power plant and the secondary water circuit of a third-generation nuclear PWR reactor. The aim of this work is to explore the difference between the source water quality parameters values and those of the recommended values of technical guidelines. To minimize the water treatment cost, a new site for the installation of a power plant project in Bangladesh can be advocated depending on the availability of good quality water.

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“…Therefore, many researchers have made a significant effort to reduce the amount of secondary-cycle corrosion product transport to SGs by controlling the water chemistry parameters such as pH (pH agent replacement and pH value elevation), use of dispersants, and addition of a film-forming amine [4,14]. These efforts have been largely successful in reducing Fe concentrations in feedwater by decreasing the corrosion rate.…”

Section: Introductionmentioning

confidence: 99%

Effects of Advanced Amines on Magnetite Deposition of Steam Generator Tubes in Secondary System

Lee

Hur

et al. 2021

Coatings

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Ethanolamine (ETA) is widely used to control the pH value in the secondary water of pressurized water reactors. However, it is necessary to consider other advanced amines which can replace ETA due to its serious human hazards and environmental treatment problems. The purpose of this study is to contemplate the effects of three advanced amines (ETA, 3-methoxypropylamine (MPA), and dimethylamine (DMA)) on the magnetite deposition behavior of a thermally treated (TT) Alloy 690 tubes by using a steam generator (SG) tube fouling loop in simulated secondary water. All particles were identified as a magnetite and were polyhedral or spherical in shape. When using ETA, MPA, and DMA, the average porosity of the deposits was about 34.7%, 33.0%, and 24.6%, respectively. The amount of deposits was largest when ETA was added, and it decreased by 41% when adding MPA and 55% when adding DMA. The mechanism of magnetite deposition was discussed in terms of zeta potentials of both the magnetite particles and the Alloy 690TT surface and magnetite solubility depending on the amines. To compare the potential for replacing ETA with other advanced amines, the various factors such as SG integrity, human hazards, and environmental treatment problems were discussed.

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Water chemistry of the secondary circuit at a nuclear power station with a VVER power reactor

Cited by 9 publications

References 0 publications

Water Chemistry in Nuclear Power Plant

Water Chemistry in Nuclear Power Plant

An Analysis of Water Characteristics of Shiddhirganj 210MW Steam Power Plant, Sirajganj 225MW Combined Cycle Power Plants and Rooppur 2400MW Nuclear Power Plant in Bangladesh: A Comparative Study of Power Plant Grade Water

Effects of Advanced Amines on Magnetite Deposition of Steam Generator Tubes in Secondary System

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