HUBEI AGRICULTURAL SCIENCES ›› 2022, Vol. 61 ›› Issue (19): 43-46.doi: 10.14088/j.cnki.issn0439-8114.2022.19.008

• Resource & Environment • Previous Articles     Next Articles

Study on the treatment of fumaric acid wastewater with IC reactor

HE Hai-yan1, XU Xiao-ding2, TU Jun-qiao3, LIU Song4, YANG Li-qun5   

  1. 1. Jingzhou District Branch of Jingzhou Municipal Ecological Environment Bureau, Jingzhou 434023, Hubei, China;
    2. Shashi District Branch of Jingzhou Municipal Ecological Environment Bureau, Jingzhou 434000, Hubei, China;
    3. Jingzhou Ecological Environment Information and Testing Evaluation Center, Jingzhou 434000, Hubei, China;
    4. Jinan Ecological and Cultural Tourism Branch of Jingzhou Municipal Ecological Environment Bureau, Jingzhou 434034, Hubei, China;
    5. Jingzhou Ecological Environment Monitoring Center, Department of Ecology and Environment of Hubei Province, Jingzhou 434000, Hubei, China
  • Received:2021-09-06 Online:2022-10-10 Published:2022-11-04

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Abstract: The self-made IC reactor was used to treat fumaric acid simulated wastewater （effluent after three-dimensional electrochemical pretreatment）, to investigate the IC reactor stability, optimize the reactor process parameters, and initially explore the effect of thiourea on the IC reactor. The results showed that the IC reactor achieved a stabilizing effect after 22 days of rapid start, and could be restored after stopping for 30 days and then starting for 10 days. The stability of the IC reactor was better. When the inner circulation ratio of the IC reactor was 200%, the reaction temperature was 30 ℃, and the hydraulic retention time （HRT） was 24 h, the removal rates of chemical oxygen demand （COD）, ammonia nitrogen and volatile fatty acids （VFA） were 88.75%, 53.45%, and 98.16%, respectively. When the influent thiourea concentration was 200 mg/L, the COD removal rate decreased to 70.28%; when the influent thiourea concentration was 1 000 mg/L, the COD removal rate decreased to 49.38%.

Key words: IC reactor, fumaric acid wastewater, film hanging start, biological toxicity

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