fulltext.study @t Gmail

Degradation and behavior of natural steroid hormones in cow manure waste during biological treatments and ozone oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
22356 43271 2007 5 PDF Available
Title
Degradation and behavior of natural steroid hormones in cow manure waste during biological treatments and ozone oxidation
Abstract

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, CODCr, 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.

Keywords
cow manure waste; natural steroid hormones; thermophilic anaerobic digestion; aerobic treatment; ozone oxidation; yeast two-hybrid assay
First Page Preview
Degradation and behavior of natural steroid hormones in cow manure waste during biological treatments and ozone oxidation
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 103, Issue 1, January 2007, Pages 27–31
Authors
, , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us