NDLI: Application of experimental design technique to the optimization of bench-scale composting conditions of municipal raw sludge

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Application of experimental design technique to the optimization of bench-scale composting conditions of municipal raw sludge

Content Provider	Semantic Scholar
Author	Leiva, María T. Casacuberta, Adriana Artola Ferrer, A.
Copyright Year	2003
Abstract	Evaluation of the parameters affecting the compostability of dewatered raw sludge from a wastewater treatment plant has been carried out by means of a full factorial composite experimental design. The factors and their correspondent levels considered in the experimental design were: bulking agent:sludge ratio (from 1:1 to 4:1 by volume), bulking agent particle size (from 0-5 mm to 10-20 mm) and composting volume (in the range of typical laboratory-scale, from 1.5 to 25 L). Experimental design has permitted obtaining a polynomial second-order function that quantitatively describes the influence of the considered factors on the compostability of this waste in laboratory reactors. The function has been numerically optimized to find the optimal values for composting raw sludge resulting in a values of: 0-5 mm for bulking agent size, 1:1 for ratio bulking agent:sludge and a composting volume around 10 L. The use of this technique can be generalized and applied to the composting of other organic wastes and will permit comparison of composting performance of different wastes.
Starting Page	321
Ending Page	329
Page Count	9
File Format	PDF HTM / HTML
DOI	10.1080/1065657X.2003.10702141
Volume Number	11
Alternate Webpage(s)	https://ddd.uab.cat/pub/artpub/2003/163549/comsciuti_a2003v11n4p321.pdf
Alternate Webpage(s)	https://doi.org/10.1080/1065657X.2003.10702141
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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