concentrate

The control concentration of the denitration concentrate should be within an appropriate range; it is generally recommended to keep the concentration at around 25%-30%. This is because if the concentration is too low, it will increase the amount of denitration agent required, and the reaction efficiency will be low, making it difficult to achieve denitration ； If the concentration is too high, it can easily cause problems such as blockages and scaling, which will affect the proper operation of the system. At the same time, the adjustment of concentration should be carried out based on actual conditions, taking into account factors such as denitration equipment and the amount of flue gas generated, in order to ensure the effectiveness of denitration and the stable operation of the equipment. .

Membrane-based sulfate removal is a technology that uses ion-selective permeable membranes to separate sulfate ions, and it features high efficiency, energy savings, and simple operation. Its working principle is as follows: Wastewater containing sulfate ions is passed through an ion exchange reactor, where the sulfate ions are exchanged with cations such as calcium and ammonium, resulting in solid salts that cannot pass through the anion semi-permeable membrane. Thereafter, by adding a suspension and reagents, solid salt particles are caused to form a deposition layer on the membrane surface, thereby preventing sulfate ions from passing through the membrane and achieving the effect of \"removing sulfate ions via membranes\". This technology is widely used in wastewater treatment because it does not require chemical agents, is simple to operate, and does not need special equipment. .

Denitration concentrate is a liquid used for the regeneration of reducing agents in denitration equipment, with nitrites and nitrates as its main components. Under normal circumstances, the concentration of the denitration concentrate should be maintained within the range of 30-40%. This concentration ensures the proper operation of the denitration equipment while maximizing the efficiency of waste gas denitration. When the concentration of the denitration concentrate is too high, it can cause scaling inside the equipment and pipe blockages, reducing the denitration efficiency; it can also easily lead to damage to the equipment. When the denitration concentrate is too diluted, although it can reduce corrosion to the equipment, it also lowers the denitration efficiency. Therefore, maintaining the concentration of the denitration concentrate within the range of 30-40% ensures the proper operation of the denitration equipment, while also improving the denitration efficiency to a certain extent. For reference only