Degradation and behavior of natural steroid hormones in cow manure waste during biological treatments and ozone oxidation
Degradation and behavior of natural steroid hormones in cow manure waste during biological treatments and ozone oxidation
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DOI：
10.1263/jbb.103.27
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发表时间：
2007-01-01
影响因子：
2.8
通讯作者：
Kida, Kenji
中科院分区：
文献类型：
--
作者：
Ermawati, Rahyani;Morimura, Shigeru;Kida, Kenji
开发了一种针对经过筛选的牛粪废物的有效处理工艺，特别是针对天然类固醇激素的降解。该过程的第一步是用于高温厌氧消化的抽取和填充过程。厌氧处理出水用自来水稀释四倍后，连续投料进行好氧处理。然后进行分批臭氧氧化以降解好氧处理流出物中残留的天然类固醇激素。进行酵母双杂交测定来评估激素降解。生物处理废水中总 VFA、BOD5、CODCI、TOC、TS、VSS 和天然类固醇激素的浓度显着降低。该浓度的去除率分别为99.7%、90%、79%、84%、51%、58%和99%。尽管剩余的TOC和CODCr的浓度保持恒定，但天然类固醇激素通过臭氧氧化被完全去除。
An efficient treatment process for screened cow manure waste, particularly for the degradation of natural steroid hormones, was developed. The first step in this process was a draw-and-fill process for thermophilic anaerobic digestion. After fourfold dilution with tap water, continuous feeding was performed for the aerobic treatment of the effluent from the anaerobic treatment. Batchwise ozone oxidation was then carried out for the degradation of the natural steroid hormones that remained in the effluent from the aerobic treatment. A yeast two-hybrid assay was performed to evaluate hormonal degradation. Significant reductions in the concentrations of total VFA, BOD5, CODCI, TOC, TS, VSS, and natural steroid hormones were demonstrated in the effluent from the biological treatments. The removal ratios of such concentrations were 99.7%, 90%, 79%, 84%, 51%, 58%, and 99%, respectively. Although the concentrations of the remaining TOC and CODCr remained constant, natural steroid hormones were completely removed by ozone oxidation.