钙系中和剂处理稀盐酸废水的工艺优化研究  

Optimization Study of Calcium-based Neutralization Agents Treatment Process for Dilute Hydrochloric Acid from Wastewater

作　　者：张彭军 周宽 杨帆 付耀洲 王成权 杨小俊 Zhang Pengjun;Zhou Kuan;Yang Fan;Fu Yaozhou;Wang Chengquan;Yang Xiaojun(Key Laboratory of Green Chemical Process of Ministry of Education,School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Hubei,430205;Zhijiang Fucheng Chemical Industry Co.,Ltd.,Hubei,443200)

机构地区：[1]武汉工程大学化工与制药学院绿色化工过程教育部重点实验室,湖北430205 [2]枝江市富成化工有限责任公司,湖北443200

出　　处：《当代化工研究》2024年第4期148-150,共3页Modern Chemical Research

摘　　要：实验采用中和法处理稀盐酸废水,研究了钙系中和剂的种类和用量,以及动态并流法和静态堆浸法两种处理方式对中和效果的影响。实验结果表明,采用并流动态处理方式,以Ca(OH)_(2)为中和剂时的转化效率可达98.75%,处理后废水pH可至7.56,达到了GB 8978—1996污水综合排放标准中对pH的要求。同时废渣中的钙含量可以降低至3.55%,可回收利用的Mg、Al、Fe等元素的含量有所增加,实现了中和处理成本的降低。The experiment employed neutralization method to treat dilute hydrochloric acid from wastewater.This study investigated the types and dosages of calcium-based neutralization agents,as well as the effects of dynamic parallel flow method and static heap leaching method on the neutralization efficiency.The experimental results indicated that using dynamic parallel treatment with Ca(OH)_(2)as the neutralizing agent achieved a conversion efficiency of 98.75%.The pH of the treated wastewater can be reduced to 7.56,meeting the pH requirements specified in the GB 8978-1996 comprehensive wastewater discharge standards.Additionally,the calcium content in the waste residue could be reduced to 3.55%,and the recoverable elements increased,resulting in a reduction of the neutralization processing cost.

关 键 词：稀盐酸 中和 并流 循环利用 

分 类 号：TQ132.3[化学工程—无机化工]