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Sodium chlorate

About: Sodium chlorate is a research topic. Over the lifetime, 791 publications have been published within this topic receiving 6844 citations.


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Journal ArticleDOI
TL;DR: In this paper , an Extended Kalman Filter (EKF) was used to estimate the chlorate formation in the electrochlorination process, and the EKF algorithm was verified experimentally and was found to be capable of accurately estimating chlorate concentrations in real time.
Abstract: As chlorate concentrations have been found to be harmful to human and animal health, governments are increasingly demanding strict control of the chlorate concentration in drinking water. Since there are no chlorate sensors available, the current solution is sampling and laboratory analysis. This is costly and time consuming. The aim of this work was to investigate Sensor Data Fusion (SDF) as an alternative approach, with a focus on chlorate formation in the electrochlorination process, and design an observer for the real-time estimation of chlorate. The pH, temperature and UV-a absorption were measured in real time. A reduced-order nonlinear model was derived, and it was found to be detectable. An Extended Kalman Filter (EKF), based on this model, was then used to estimate the chlorate formation. The EKF algorithm was verified experimentally and was found to be capable of accurately estimating chlorate concentrations in real time. Electrochlorination is an emerging and efficient method of disinfecting drinking water. Soft sensing of chlorate concentrations, as proposed in this paper, may help to better control and manage the process of electrochlorination.

1 citations

Patent
29 Sep 2017
TL;DR: In this paper, a technology for recycling and utilizing wastewater produced in oxosynthesis of quinolinic acid by sodium chlorate is presented, which is simple, green and environment-friendly effects are realized, the total yield rate of reaction reaches 82% or above, and the content reaches 99 % or above.
Abstract: The invention discloses a technology for recycling and utilizing wastewater produced in oxosynthesis of quinolinic acid by sodium chlorate. The technology comprises the following steps of using the wastewater produced in the oxosynthesis of the quinolinic acid by the sodium chlorate as an initiator, using quinoline, sodium chlorate and copper sulfate as raw materials, and respectively performing oxidizing reaction, alkaline reaction and acidifying reaction, so as to obtain the quinolinic acid. Compared with the prior art, the technology has the advantages that the wastewater produced in the oxosynthesis of the quinolinic acid by the sodium chlorate can be recycled and utilized; the technology is simple, the green and environment-friendly effects are realized, the total yield rate of reaction reaches 82% or above, and the content reaches 99% or above.

1 citations

Patent
23 Nov 2016
TL;DR: In this paper, a high-efficiency sodium chlorate electrolysis system is characterized in that the system comprises electrolysis tanks (1), a reactor (2), and a buffer tank (4), and an inlet and an outlet of each electrolysis tank are connected with the reactor through titanium tubes independently.
Abstract: The invention discloses a high-efficiency sodium chlorate electrolysis system. The high-efficiency sodium chlorate electrolysis system is characterized in that the system comprises electrolysis tanks (1), a reactor (2) and a buffer tank (4), and an inlet and an outlet of each electrolysis tank (1) are connected with the reactor (2) through titanium tubes independently. By the adoption of the round or oval electrolysis tanks, electrolytes in the tanks flow sufficiently, the inlet and the outlet of each electrolysis tank are connected with the reactor through the titanium tubes independently, independent natural circulation is achieved, circulation is more sufficient, and the problem that electrolysis tanks are different in electrolyte inlet amount due to the fact that a traditional sodium chlorate electrolysis system adopts one electrolyte inlet header pipe to supply electrolytes to the electrolysis tanks is solved; and the two rows of electrolysis tanks are distributed symmetrically and more compactly, and a sodium chlorate preparation production line can achieve flexible combination according to the capacity requirement.

1 citations

Journal ArticleDOI
TL;DR: Cyanosis occurred in a number of baby patients in unusual circumstances and was found to be due to a chemical, namely, sodium chlorate, present in the milk feed prepared for the babies, thus some Sodium chlorate was ingested by the babies.
Abstract: Cyanosis occurred in a number of baby patients in unusual circumstances. It was found to be due to a chemical, namely, sodium chlorate, present in the milk feed prepared for the babies. Sodium chlorate is a normal ingredient of sodium hypochlorite sterilising solution. In this case, the feeding bottles were not adequately drained or rinsed after immersion in hypochlorite solution, thus some sodium chlorate was ingested by the babies.

1 citations

Journal ArticleDOI
30 May 2017
TL;DR: In this paper, the effect of chlorate ions on the anodic dissolution of aluminium and its alloys with magnesium under conditions of high current densities and intensive electrolyte mixing is investigated using the method of anodic polarisation curve removal on a rotating disk electrode.
Abstract: The effect of chlorate ions on the anodic dissolution of aluminium and its alloys with magnesium under conditions of high current densities and intensive electrolyte mixing is investigated using the method of anodic polarisation curve removal on a rotating disk electrode. It is shown that at relatively low anodic potential values the process is limited by the capacity of the electrochemical reaction, but with a further potential shift and a venting of the reaction products from the surface of the anode. The effective smoothing of the surface microrelief of aluminium alloys in solutions of chlorates is due to the periodic formation and destruction on the treated surface of a specific oxide film and inhibition due to the electrochemical heterogeneity of the structural components of the alloys.

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20237
202215
202110
202014
201925
201836