[1]倪黎,梁维军,王红萍,等.离子交换在含有机铵乙醇废水资源化中的应用[J].中国给水排水,2025,41(13):114-118.
NILi,LIANGWei-jun,WANGHong-ping,et al.Application of Ion Exchange for Resource Recovery of Ethanol Wastewater Containing Organic Ammonium Compounds[J].China Water & Wastewater,2025,41(13):114-118.
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NILi,LIANGWei-jun,WANGHong-ping,et al.Application of Ion Exchange for Resource Recovery of Ethanol Wastewater Containing Organic Ammonium Compounds[J].China Water & Wastewater,2025,41(13):114-118.
离子交换在含有机铵乙醇废水资源化中的应用
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第41卷
期数:
2025年第13期
页码:
114-118
栏目:
出版日期:
2025-07-01
- Title:
- Application of Ion Exchange for Resource Recovery of Ethanol Wastewater Containing Organic Ammonium Compounds
- Keywords:
- ion exchange; ethanol wastewater; wastewater from ethanol removal process (ERP wastewater); resource recovery
- 摘要:
- 在钛硅分子筛TS-1合成中会产生含有少量四丙基氢氧化铵（TPAOH）的高浓度乙醇废水（赶醇水），其具有良好的资源化前景，去除TPA+是实现资源化的关键。基于专利《一种钛硅合成赶醇过程低胺高醇废水资源化处理系统》，设计了离子交换赶醇水资源化系统，由废水处理系统、智能监测与控制系统和电源等组成，处理规模为6 m3/d，吸附柱和离子交换柱的规格均为500 mm×2 000 mm。净化-再生-净化三个阶段的运行结果表明，一个运行周期（54 h）净化约50 m3废水，经过处理的废水pH从7.5~9.8降至6.86~6.93、电导率从14.9~67.4 μS/cm降至1.5~2.0 μS/cm，乙醇含量和体积几乎不变， TPAOH含量低于5 mg/L。同时，好氧呼吸实验表明，净化后废水不再抑制污泥的微生物活性。再生过程仅消耗少量的除盐水、盐酸和氢氧化钠，产生少量无毒的含悬浮物和酸/碱/盐的废水，并回收到TPA+含量约1%的有机铵盐。全周期经济性分析表明，处理1 m3废水产生的经济效益约为2 500 元。
- Abstract:
- In the synthesis of titanium-silicon molecular sieve TS-1, a high-concentration ethanol wastewater containing a small amount of tetrapropyl ammonium hydroxide (TPAOH) is generated from ethanol removal process (ERP). This wastewater holds significant potential for resource recovery and utilization, with the removal of TPA+ being a critical step to achieving effective resource utilization. Based on the patent of A Resource Treatment System of Low Amine and High Alcohol Wastewater from Alcohol Removal Process during Titanium Silicon Synthesis, the ERP wastewater resource utilization system designed by employing the ion exchange process comprises a wastewater treatment system, an intelligent monitoring and control system, a power supply unit, and other ancillary components. The capacity of the system is 6 m3/d. The adsorption column and the ion exchange column have specifications of 500 mm × 2 000 mm. The operation of the three stages (purification, regeneration and purification) indicated that approximately 50 m3 of wastewater was purified in one operational cycle lasting 54 hours. The pH of the treated wastewater decreased from 7.5-9.8 to 6.86-6.93, the conductivity decreased from 14.9-67.4 μS/cm to 1.5-2.0 μS/cm, and the ethanol content and volume remained virtually unchanged. The concentration of TPAOH was less than 5 mg/L. Meanwhile, aerobic respiration experiments demonstrated that the purified wastewater did not exert any inhibitory effects on the microbial activity of the sludge. The regeneration process consumed only a minimal amount of desalinated water, hydrochloric acid, and sodium hydroxide. It produced a limited volume of non-toxic wastewater containing suspended solids, acids/bases/salts, and recovered organic ammonium salts with approximately 1% TPA+ content. The comprehensive full-cycle economic analysis reveals that treating 1 m3 of wastewater generates an approximate economic benefit of 2 500 yuan.
更新日期/Last Update:
2025-07-01