[1]马俊,闫松,袁丙平,等.强化生物脱氮反应器处理煤气化及合成氨混合废水[J].中国给水排水,2025,41(16):112-119.
　MAJun,YANSong,YUANBing-ping,et al.Enhanced Biological Nitrogen Removal Reactor for Coal-to-hydrogen and Synthetic Ammonia Wastewater Treatment[J].China Water & Wastewater,2025,41(16):112-119.
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强化生物脱氮反应器处理煤气化及合成氨混合废水

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第16期 页码: 112-119 栏目: 出版日期: 2025-08-17
Title:
Enhanced Biological Nitrogen Removal Reactor for Coal-to-hydrogen and Synthetic Ammonia Wastewater Treatment
作者:
马俊1， 闫松2， 袁丙平3， 刘钰3， 刘霞4
（1.金川集团股份有限公司，甘肃 金昌 737100；2.福建申远新材料有限公司，福建 福州 350512；3.上海中耀环保实业有限公司，上海 200092；4.同济大学 环境科学与工程学院，上海 200092）
Author(s):
MA　Jun1， YAN　Song2， YUAN　Bing-ping3， LIU　Yu3， LIU　Xia4
（1. Jinchuan Group Co. Ltd.， Jinchang 737100， China； 2. Fujian Shenyuan New Materials Co. Ltd.， Fuzhou 350512， China； 3. Shanghai Zhongyao Environmental Protection Industry Co. Ltd.， Shanghai 200092， China； 4. College of Environmental Science and Engineering， Tongji University， Shanghai 200092， China）
关键词:
煤气化废水;  合成氨废水;  强化生物脱氮反应器;  软化预处理;  反硝化生物滤池;  Fenton氧化池
Keywords:
coal-to-hydrogen wastewater;  synthetic ammonia wastewater;  enhanced biological nitrogen removal reactor;  softening pre-treatment;  denitrification biofilter;  Fenton oxidation tank
摘要:
煤气化及合成氨废水具有高硬度、高总氮、高氨氮、低碳氮比等特点，属于典型的难处理煤化工废水，目前对该类废水直接排放处理的工程实例较少。某煤气化制氢及合成氨企业采用“软化预处理-强化生物脱氮反应器-反硝化生物滤池”工艺处理生产废水，设计进水量为300 m3/h，进水总硬度、总氮、氨氮、COD平均值分别为794.2、488.2、425.3、488.7 mg/L。实际运行结果表明，软化系统对总硬度的平均去除率为62.3%；强化生物脱氮反应器处理工艺段可将总氮、氨氮、COD分别降至17.0、1.5、22.5 mg/L，平均去除率分别为96.5%、99.6%、95.4%；强化生物脱氮反应器出水进入反硝化生物滤池，可进一步实现高达69.0%的总氮平均去除率，确保出水总氮稳定达到10 mg/L以下。当进水COD波动时，启动Fenton氧化工艺，可实现43.6%的COD平均去除率，确保出水COD稳定小于30 mg/L。测算电费、药剂费等运行成本可知，软化预处理段为1.81元/m3，强化生物脱氮反应器和反硝化生物滤池段为2.95元/m3，Fenton氧化段为0.51元/m3，合计5.27元/m3。
Abstract:
Coal-to-hydrogen and synthetic ammonia wastewater is characterized by high hardness, high total nitrogen, high ammonia nitrogen and low carbon to nitrogen ratio, which is typical refractory coal chemical wastewater. There are few engineering cases about treating this wastewater to meet the direct discharge standard. A coal-to-hydrogen and synthetic ammonia production plant adopts the process of softening pre-treatment, enhanced biological nitrogen removal reactor, denitrification biofilter to treat its production wastewater. The design influent volume is 300 m3/h, and the average influent total hardness, total nitrogen(TN), ammonia nitrogen(NH3-N) and COD are 794.2 mg/L, 488.2 mg/L, 425.3 mg/L, and 488.7 mg/L, respectively. The results show that the average removal rate of total hardness of wastewater by softening system is 62.3%. TN, NH3-N and COD can be reduced to 17.0 mg/L, 1.5 mg/L, and 22.5 mg/L respectively by enhanced biochemical treatment, and the average removal rate were 96.5%, 99.6%, 95.4%, respectively. The effluent from the enhanced biological nitrogen removal reactor enters into the denitrification biofilter treatment system, which can further achieve a total nitrogen removal rate of up to 69.0%, ensuring a stable total nitrogen in the effluent below 10 mg/L. When the influent COD fluctuates greatly, the Fenton oxidation treatment system is started, and the degradation efficiency of COD can reach 43.6%, ensuring the COD in the effluent below 30 mg/L. The operation chemical and electricity cost of the system includes 1.81 yuan/m3 for softening pre-treatment, 2.95 yuan/m3 for enhanced biological nitrogen removal reactor and denitrification biofilter, 0.51 yuan/m3 for Fenton oxidation treatment，and 5.27 yuan/m3 for total cost.
更新日期/Last Update: 2025-08-17