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245 1 0 _aMass balances and distributions of C, N, and P in the anaerobic digestion of different substrates and relationships between products and substrates
490 0 _vChemical Engineering Journal, 287, p.329-336, 2016
520 3 _aKnowledge of the distributions and mass balances of C, N, and P during anaerobic digestion (AD)processes serves several purposes; for instance, these values can be used to obtain reliable quantitative information on the fate of C, N, and P after AD, to understand carbon and nutrient balances, and to evaluate the contribution of AD processes to elemental cycles. In this paper, C, N, and P contents in the gas, liquid and solid phases were investigated for seven different substrates: corn straw, rice straw, wheat straw, swine manure from pigs fed feedstuff or foodstuff, cattle manure, and chicken manure. The conversion efficiency of C in a substrate into methane was found to be highest in swine manure from pigs fed foodstuff (15.8 percent), and greater liquid and solid stream nutrient levels were found in the swine manures and chicken manure than in the cattle manure and straws. The mass balances of C, N and P for each different substrate were distinct, but all balances were close to 100 percent in this study. Further study revealed that CH4 yields and substrate lignin fitted a linear negative relationship well, and the COD/TOC, NH4 +-N and TP concentrations in the supernatant had positive linear relationships with the proteins, TAN/proteins and potassium of substrates, respectively.
650 1 4 _aANIMALS
650 1 4 _aCARBON
650 1 4 _aFERTILIZERS
650 1 4 _aLIQUID METHANE
650 1 4 _aMANURES
650 1 4 _aMETHANE
650 1 4 _aNUTRIENTS
650 1 4 _aSUBSTRATES
650 1 4 _aCHICKEN MANURE
650 1 4 _aDIFFERENT SUBSTRATES
650 1 4 _aDISTRIBUTION
650 1 4 _aLINEAR RELATIONSHIPS
650 1 4 _aNUTRIENT BALANCE
650 1 4 _aORGANIC WASTES
650 1 4 _aQUANTITATIVE INFORMATION
650 1 4 _aQUANTITATIVE INFORMATION
700 1 2 _aLi, H.
700 1 2 _aTan, F.
700 1 2 _aKe, L.
700 1 2 _aXia, D.
700 1 2 _aWang, Y.
700 1 2 _aHe, N.
700 1 2 _aZheng, Y.
700 1 2 _aZheng, Y.
856 4 0 _uhttps://drive.google.com/file/d/1v5JfAbNE9nrj76VfomxdpR1ZGNAjeWsj/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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