Limestone used for the remineralization of seawater

حجر الجير

Desalinated waters or deeply soft waters created by desalination plants cannot be used legitimately as they are unsightly, destructive and undesirable. Remineralization is critical to conquering these issues. One activity regularly used in the Remineralization procedure is to contact CO2 fermented desalinated water with residential limestone. The disintegration of limestone gives two basic fixes to the bicarbonate alkalinity of the water, as well as to the calcium content: CaCO3 + CO2 + H2O = Ca2+ + 2HCO3–. Limestone disintegration is a moderate speed control advance. Forecasting the disintegration rate of limestone as a component of water disposal is critical to the reliable plan and activity of the limestone contractor.

A basic examination of different kinetic expressions in the writing completed in this investigation uncovers significant contrasts in the results evaluated from various decay models. An exploratory investigation was carried out to distinguish the most reliable active decay model. Two analysis arrays were performed: one including refined water remineralization containing low initial CO2 fixations (0.5–2 mM) and another, delicate water remineralization, which had a high initial CO2 concentration (1. 5–15mM). The CO2 fermented water was reached in a vertical segment 2 m high (32 mm I.D.), filled with 2.85 mm calcite particles. It was observed that the fit in water synthesis along the section provides both differential and basic decay information.

The investigation of the information showed that none of the accessible models fit the exploratory results. The closest understanding was with the unpredictable model of Plummer et al, however, this understanding was average. In the high CO2 territory, the model anticipated higher decay rates by factors of 2 to 4 in the high CO2 territory and 10 to 20 in the low CO2 territory. In view of the test results, two models were created for the plan of limestone cracking segment contactors. By the time the latest remineralized water synthesis has a CO2 content greater than 2mM, the limestone bed can be planned by an indispensable basic joint. In any case, if decay drains CO2 fixation to low qualities, well below 2 mM, the bed configuration requires numerical incorporation of the broader decay rate joint determined in this work.

حجر الجير contractors have been used to neutralize pH as well as add bicarbonates and calcium to acidic waters such as rainwater, groundwater, or even reverse osmosis permeate. If the water does not contain aggressive CO2, the CO2 gas must be injected before the filter inlet.


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