The presence of bromuconazole fungicide pollutant in organic waste anaerobic fermentation

1st International Symposium on Green Technology for Value Chains 2016

工业技术;生态环境科学

Hariyadi, H.R.^1

Research Unit for Clean Technology, Indonesian Institute of Sciences (LIPI), Jalan Cisitu 21/154 D, Bandung

40135, Indonesia^1

关键词: Anaerobic conditions;    Anaerobic fermentation;    Flame ionization detectors;    Fruits and vegetables;    Low concentrations;    Methane production;    Neopentyl glycol;    Toxic pollutants;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/60/1/012022/pdf
DOI  :  10.1088/1755-1315/60/1/012022

来源: IOP

【 摘 要 】

The presence of bromuconazole fungicide pollutant in organic waste anaerobic fermentation was carried out as well as the influence phenol and benzoate, and biodegradation of bromuconazole. Bromuconazole is a fungicide effective against Ascomycetes, Basidiomycetes and fungi imperfecti in cereals, grapes, top fruits and vegetables. It is also effective against Alternaria and Fusarium sp. The remaining fungicide in leaves might contaminates landfill. One month of organic waste added with bromuconazole was anaerobically incubated in 500 mL bottles at 30°C without shaking in dark room. High-Performance Liquid Chromatography (HPLC) with UV detector and a 100 RP 185μm Lichrosphere column was used to determine bromuconazole concentration. Methane content was determined by Gas Chromatography (GC) method equipped with a flame ionization detector and a metal column packed with 5% neopentyl glycol sebacate and 1% H3PO4on Chromosorb W-AW (mesh 80-100). After incubation for 225 days, bromuconazole of 200 mg/L inhibited the production of methane (99.5 mM) significantly, but did not inhibit the production of volatile fatty acids. The addition of 100 mg/L phenol or 146 mg/L benzoate increased the production of methane, 143 mM and 135.2 mM, respectively compared with control (121.8 mM). In anaerobic conditions, the presence of toxic pollutants such as fungicide bromuconazole in landfills sites may cause further problems with the accumulation of volatile fatty acids in leachate. Further study to determine the threshold, the presence of bromconazole in low concentration (less than 200 mg/L) on the methane production is recommended.