Ammonia-alkali legal soda ash wastewater problem
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I would like to ask if there is still soda ash produced by the ammonia-alkali method in China? Is it mainly the combined alkali production method?
I sent the message before I even finished asking. I’m so depressed! What is the calcium chloride content in the wastewater from the ammonia-alkali soda ash production process? Are there other substances and what is their content? How much wastewater is produced by producing one ton of soda ash? Experts please give us some guidance!
Yes, Qingdao Alkali Industry, Weifang Haihua, Lianyungang, and Tangshan Sanyou all use the ammonia-alkali method. There are several aspects of waste water. The distillation waste liquid that can produce calcium chloride contains a calcium chloride concentration of 10-14%. The concentration of calcium chloride will be higher in dry distillation and lower in wet distillation.
What is the calcium chloride content in the wastewater from the ammonia-alkali soda ash production process? Calcium chloride should be 8-10%, sodium chloride 3-5%, calcium hydroxide 0.01-0.05%? Producing one ton of soda ash produces about 10 cubic meters of wastewater (about 9.35).