What should be done regarding the exhaust gas from the salt and acid storage tanks?
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There is a salt acid (37%) storage tank, 20°C, 20 cubic meters – is the amount of loss due to normal venting to the atmosphere significant? 1. How to reduce losses and prevent them from being released into the atmosphere? 2. How to ensure a constant pressure in the storage tank during feeding and discharging, so that pumping can proceed smoothly for both drawing in material and discharging it?
For this issue, acid-base plate and frame filters might be more suitable to help transfer it over
Explain in more detail so I can learn it too*.
A small packing tower is connected to the tank’s discharge outlet, preventing discharge into the atmosphere; this ensures a constant pressure in the tank during feeding and discharging, allowing for proper pumping of material in as well as its proper discharge.
Acid mist is released into the atmosphere, causing environmental pollution and harming human health. Install two devices, one positive water seal and one negative water seal, and connect the gas pipelines of the acid storage tank to these positive and negative water seals. Replace the water in the water seals on a regular basis to ensure it does not reach saturation; this helps to prevent the formation of acid mist even when no acid is added to or removed from the acid storage tank. Secondly, when acid is introduced or added, the positive and negative pressures are quite high at this time, and the positive and negative water seals cease to function. In such cases, it is necessary to install an additional water jet pump and a circulation tank; during the process of introducing or adding acid, the water jet pump is turned on to maintain a constant pressure in the storage tank.
What are positive water seals and negative water seals? Are there any diagrams available? Thank you so much!