If this is for water treatment, we would recommend the use of hydrated lime because the feed rate is low. Depending on the budget, the lime could be stored in a silo, hopper, or even big bag station.
Skip to content Linkedin Twitter. Select your language. Hydrated Lime Also called calcium hydroxide. Has a density of 0. Is a colorless crystal. Quicklime Also called calcium oxide. Is a white, caustic, alkaline, and crystalline solid at room temperature. Discharging and dosing system operating on Sodimate lime silos. In addition to that, there are many other synonyms for this compound, i. The chemical formula of this compound is Ca OH 2.
The molar mass of this compound is It appears as a white powder and is odorless. However, the solubility of this compound in water is poor. Hydrates lime is available as either a powder or as granules. However, the end product given from the production process appears as a dry, powder-like flour which has a light mostly white color. The uses of this compound are in flue gas treatment, neutralizing industrial wastewater, etc.
Quicklime is calcium oxide with the chemical formula CaO whereas, hydrated lime is calcium hydroxide with the chemical formula Ca OH 2. This is the key difference between quicklime and hydrated lime. Why is it important to me as a farmer? Knowing characteristics about lime allows you to compare the cost-effectiveness of a variety of lime products and purchase the produce that will be most cost-effective for your farm. Lime or limestone calcium carbonate is a naturally occurring rock that is used to raise the pH of acid soils.
The amount of lime required to increase the pH of a soil by one pH unit depends on the buffering capacity of the soil. A well-buffered soil becomes acid more slowly than a weakly buffered soil, but will require more lime to increase the pH value Generally, you need to use lime that is in very small particles so it will react quickly with the soil, this is called the finesse of the lime and is measured by the limes Effective Neutralising Value ENV Effective Neutralising value ENV is a measure of the effectiveness of the neutralising substances.
For the purposes of comparison calcium carbonate is given a neutralising value of ; ideally NV should be over 95 Lime manufactures have to specify the percentage of particles finer than 0. Very fine lime has per cent fines as they are called and this is the grade you are recommended to buy Refer table 1. The percentage is marked on the bag or invoice The Fertiliser Regulations have set the following standards for lime and liming materials on a dry matter basis : Grade 1 lime must have a minimum ENV of 80 Grade 2 lime must have a minimum ENV of 65 Grade 3 lime must have a minimum ENV of Agricultural lime is the most commonly used product for increasing soil pH in pastures and is usually the most cost-effective.
It is a faster-acting lime and has the highest neutralising value. The lime can be fed and conveyed by different means, including rotary air locks, screw feeders, conveyor belts, drag chain conveyors or pneumatic conveyors. If the lime has to be put into lime slurry , a lime slurry tank can be requested and equipped with a slurry agitator and a water supply control valve. To transport the lime slurry solution we use pumps. We generally recommend peristaltic pumps or progressive cavity pumps, or any type of lime slurry pumps our customer feels confident using.
The pumps needed with quicklime are exactly the same as with a hydrated lime solutions. However if the lime is injected into a solution, we will also need a lime slaker. The lime slaker is generally fit with a mixer and agitator, all made of stainless steel, in addition to a vacuum system lime scrubber that washes down and evacuates the heat and steam created from the reaction between the calcium oxide and water. Besides that, quicklime works exactly the same as hydrated lime, including storage, metering, and conveying.
If this is for water treatment, we would recommend the use of hydrated lime because the feed rate is low. Depending on the budget, the lime could be stored within silos, hoppers, or even big bags or super sacs. Please prove you are human by selecting the Star.
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