Evaluation of organic matter stabilization in sewage sludge
作者： M. DeNobili , G. Cercignani , L. Leita , P. Sequi
DOI: 10.1080/00103628609367777
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摘要: Abstract The ratio between non‐humified and humified fractions in pyrophosphate extracts is shown to vary during maturation of sewage sludge. higher than 1 the raw materials but lowers at or less with aging sludge assumed reflect quantitatively degree stabilization organic matter Analytical isoelectrofocusing (IEF) experiments showed that focalize only pH gradient regions lower 5.0, whilst older samples a progressive strengthening bands occurs region 6.5 approaching least partially IEF patterns soil matter. are suggested from qualitative point view.
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