Effects of sepiolite addition on removing contaminants in anaerobic reactor for treatment landfill leachate

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Su, Chengyuan^1 ; Liao, Liming^1 ; Lu, Yuxiang^1 ; Zhao, Lijian^1

Key Laboratory of Karst Ecology and Environment Change of Guangxi, Department of Education, Guilin

541004, China^1

关键词: Ammonia nitrogen;    Anaerobic reactor;    COD removal rate;    Dehydrogenase activity;    FT-IR spectrum;    Humic and fulvic acids;    Landfill leachates;    Removal of cods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/4/042020/pdf
DOI  :  10.1088/1757-899X/392/4/042020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The effects of adding sepiolite in the performance of an anaerobic reactor for treating landfill leachate were investigated. Responses of SMP and EPS of the R1 (without sepiolite) and R2 (with sepiolite) reactors were evaluated by EEM and FTIR spectra. Results showed that addition of sepiolite increased the removal of COD removal by 10%. The highest removal rate of ammonia nitrogen was also observed reaching 69.8% in R2 reactor. In the EEM spectra, humic- and fulvic acid-like substances were present in the EPS of the R1 reactor. The peak was located at the excitation/emission wavelength (Ex/Em) of 280/350 nm in the R2 reactor, attributed to tryptophan-like proteins. Meanwhile, dehydrogenase activities were higher than in the R1 reactor, similar with observations on COD removal rate.