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Method for desalting sea sand by electrochemical process
According to the method for desalting the sea sand through the electrochemical method, the steps of fresh water flushing, mechanical stirring, electrolytic desalting and the like are adopted to cooperate with one another to achieve the good sea sand desalting effect, the chlorine ion content is effectively reduced, the chlorine ion concentration is reduced, electrolytic desalting is conducted through high-frequency pulse current, and the sea sand, fresh water and a biological adsorbent jointly react; condition parameters of high-frequency pulse current are controlled, a large number of free radicals with strong oxidizing property are generated to react with chloride ions in sea sand for removal, the chloride ion concentration is 1.21-1.62 mg/L, the chloride ion content is 0.025-0.034%, the chloride ion removal rate is 58.6-68.5%, the water-sand ratio is 0.81-1.15 L/m < 3 >, the requirements of the Ministry of House and Construction for building sand are met, sand washing wastewater is recycled, the use amount of fresh water resources in the sand washing process is reduced, and the production cost is reduced. The sand washing cost is reduced, and the fresh water generated in the electrochemical sand washing process is recycled and recycled.
本发明提供一种电化学法淡化海砂的方法，采用淡水冲洗、机械搅拌、电解淡化等步骤相互协同达到较好的淡化海砂的作用，有效降低氯离子含量，减少氯离子浓度，采用高频脉冲电流进行电解淡化，将海砂、淡水、生物吸附剂共同反应，控制高频脉冲电流的条件参数，产生大量的强氧化性的自由基与海砂中的氯离子反应清除，氯离子浓度1.21‑1.62mg/L，氯离子含量0.025‑0.034％，氯离子去除率58.6‑68.5％，水砂比0.81‑1.15L/m3，满足住建部对建筑用砂的需求，实现洗砂废水的回用，减少洗砂过程中淡水资源的用量，减低洗砂成本，实现电化学洗砂过程中产生的淡水进行回收和资源化的利用。
Method for desalting sea sand by electrochemical process
According to the method for desalting the sea sand through the electrochemical method, the steps of fresh water flushing, mechanical stirring, electrolytic desalting and the like are adopted to cooperate with one another to achieve the good sea sand desalting effect, the chlorine ion content is effectively reduced, the chlorine ion concentration is reduced, electrolytic desalting is conducted through high-frequency pulse current, and the sea sand, fresh water and a biological adsorbent jointly react; condition parameters of high-frequency pulse current are controlled, a large number of free radicals with strong oxidizing property are generated to react with chloride ions in sea sand for removal, the chloride ion concentration is 1.21-1.62 mg/L, the chloride ion content is 0.025-0.034%, the chloride ion removal rate is 58.6-68.5%, the water-sand ratio is 0.81-1.15 L/m < 3 >, the requirements of the Ministry of House and Construction for building sand are met, sand washing wastewater is recycled, the use amount of fresh water resources in the sand washing process is reduced, and the production cost is reduced. The sand washing cost is reduced, and the fresh water generated in the electrochemical sand washing process is recycled and recycled.
本发明提供一种电化学法淡化海砂的方法，采用淡水冲洗、机械搅拌、电解淡化等步骤相互协同达到较好的淡化海砂的作用，有效降低氯离子含量，减少氯离子浓度，采用高频脉冲电流进行电解淡化，将海砂、淡水、生物吸附剂共同反应，控制高频脉冲电流的条件参数，产生大量的强氧化性的自由基与海砂中的氯离子反应清除，氯离子浓度1.21‑1.62mg/L，氯离子含量0.025‑0.034％，氯离子去除率58.6‑68.5％，水砂比0.81‑1.15L/m3，满足住建部对建筑用砂的需求，实现洗砂废水的回用，减少洗砂过程中淡水资源的用量，减低洗砂成本，实现电化学洗砂过程中产生的淡水进行回收和资源化的利用。
Method for desalting sea sand by electrochemical process
一种电化学法淡化海砂的方法
CHEN JIHANG (author)
2023-09-22
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME