0
What safety precautions should be taken in a brine electrolysis plant?
Wiki User
∙ 8y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What are the cons of thermal desalination?
Advantages· Distillation offers significant savings in operational and maintenance costs compared with other desalination technologies. · In most cases, distillation does not require the addition of chemicals or water softening agents to pretreat feedwater.· Low temperature distillation plants are energy-efficient and cost-effective to operate.· Many plants are fully automated and require a limited number of personnel to operate.· Distillation has minimal environmental impacts, although brine disposal must be considered in the plant design.· The technology produces high-quality water, in some cases having less than 10 mg/1 of total dissolved solids.· Distillation can be combined with other processes, such as using heat energy from an electric-power generation plant.Disadvantages· Some distillation processes are energy-intensive, particularly the large-capacity plants. «Disposal of the brine is a problem in many regions. · The distillation process, particularly MSF distillation, is very costly.· Distillation requires a high level of technical knowledge to design and operate.· The technology requires the use of chemical products, such as acids, that need special handling.
What is calcium carbonate scale and calcium sulphate scale in desalination plant?
Scale formation represents a major operational problem encountered in thermal desalination plants. Scale may form because of the composition of the make-up, but mostly develops as a result of further change occurring during evaporation. Scale formation is mainly caused by crystallization of alkaline scales, e.g., CaCO3 and Mg(OH)2 and non-alkaline scale, e.g., CaSO4. The formation of CaCO3 scale strongly depends on temperature, pH, and the release rate of CO2 as well as on the concentrations of HCO3-, CO32-, Ca2+, and Mg2+ ions. Scaling in industrial processes is affected by the following factors: (i) bulk variables and composition, i.e. CaCO3 precipitation potential, pH buffering capacity, chloride and sulfate concentrations and concentration of dissolved oxygen, (ii) thermal effect, i.e. heat flux, surface temperature and bulk temperature, (iii) flow field, i.e. velocity of flow and solid/liquid interface conditions and (iv) substrate properties, i.e. materials properties and surface conditions.In previous works, Al-Rawajfeh et al. [1-3] have modeled the CO2 release rates in multiple-effect distillers (MED)distillers. This model did not account for the deposition of alkaline scale and its effect on CO2 release rates. Calcium carbonate and magnesium hydroxide were assumed to precipitate at negligible rates. Recently, Al-Rawajfeh [4,5] developed a model to simulate the simultaneous release of CO2 with the deposition of CaCO3 and investigated their mutual release-deposition relationship in MED [4] and in the flash chambers in MSF distillers [5]. The influence of CO2 injection on the carbonate chemistry and the scale formation were also studied [6]. The model begin to calculate the CaCO3-Mg(OH)2 (alkaline) scale in the brine chambers, because part of the scale is deposited there and will be reduced from the total scale precipitate or reduce the ions available to precipitate CaSO4 scale inside the tubes when it is recycled with the make-up. Details on the CO2 release and alkaline scale modeling can be found in previous works [1-6].REFERENCES[1] Al-Rawajfeh, A. E., Glade, H., Ulrich, J., CO2 release in multiple-effect distillers Controlled by mass transfer with chemical reaction. Desalination, vol. 156, PP. 109-123, 2003.[2] Al-Rawajfeh, A. E., Glade, H., Qiblawey, H. M., Ulrich, J., Simulation of CO2 release in multiple-effect distillers. Desalination, vol. 166, PP. 41-52, 2004.[3] Al-Rawajfeh, A. E., Glade, H., Ulrich, J., Scaling in multiple-effect distillers: the role of CO2 release. Desalination, vol. 182, PP. 209-219, 2005.[4] Al-Rawajfeh, A.E., Modelling of Alkaline Scale Formation in Falling-Film Horizontal-Tubes Multiple-Effect Distillers. Desalination, vol. 205, PP. 124-139, 2007.[5] Al-Rawajfeh, A.E., Simultaneous desorption-crystallization of CO2- CaCO3 in multistage flash (MSF) distillers. Chem. Eng. Proc., Proc. Inten., vol. 47, PP. 2262-2269, 2008.[6] Al-Rawajfeh, A.E., Al-Amaireh, M. N., The influence of CO2 injection on the carbonate chemistry and scaling in multiple-effect distillers. Desalination & Water Treat., vol. 7, PP. 191-197, 2009.
How chloride is made from brine?
By the electrolysis of brine.
What is the chloralkali industry?
electrolysis of brine
Which component is reduced during the electrolysis of brine?
water
Where is the best place to carry out the electrolysis of brine on an industrial scale?
By the sea where there is plenty of salt water. (Brine)
What electrode do brine and chlorine produce after electrolysis?
Chlorine is produced at the anode. Brine at the cathodeOxidation reaction: 2 Cl- --'anode'--> Cl2 + 2e-
Why is electrolysing brine economically important?
it is because brine is an important source of two elements i.e. Sodium and Chlorine. Obtaining them is much easier by electrolysis then other methods.
Where is chlorine found or mined?
Chlorine is a gas so it is not mined. It is manufactured by the electrolysis of a brine (salt) solution.
Which of these substances is commonly refined by electrolysis brine rust titanium water?
The only one of the four that's "commonly refined by electrolysis" is brine, but whether it'll be refined by electrolysis or by just pouring it into a shallow container and allowing it to evaporate depends on the products you want to obtain.If you're trying to get sodium hydroxide, hydrogen and chlorine, electrolysis is the process for you. This is the Chloralkali process. If you want salt, evaporation is the way to go.
What valuable product are formed from the electrolysis of brine?
Chlorine gas and sodium hydroxide, which is why it's called the chlor-alkali process.
Why is the electrolysis of brine so important?
this is due to the fact that there is production of hydogen gas, chlorine gas and sodium hydroxide which has their individual characteristic importance
After electrolysis of brine solution what is the pH of that solution?
Slightly alkaline (from 7.1 to 8.5)
What is the effect of overpotential of hydrogen evolution in electrolysis of brine?
The effects will vary based on the amount of overpotential, the current density, the electrode materials used, and the concentration of the brine, but in general: - higher overpotential will increase the reaction rate - the brine will become warmer and thermodynamic efficiency decreases - side reactions are more likely to occur, such as electrode stripping and increased Cl2 production at anode
