کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
685065 889032 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A laboratory study of survival of selected microorganisms after heat treatment of biowaste used in biogas plants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
A laboratory study of survival of selected microorganisms after heat treatment of biowaste used in biogas plants
چکیده انگلیسی

The aim of the study was to assess the effect of pasteurisation, as set by the European regulation EC 1774/2002, on selected pathogens and indicator organisms.Unpasteurised substrate (biowaste), including animal by-products from a full-scale biogas plant was heat treated under laboratory conditions at 70 °C and 55 °C for 30 min and 60 min.Heat treatment at 55 °C for 60 min was not sufficient to achieve a hygienically acceptable product. Heat treatment at 70 °C for 30 min and 60 min was effective in reducing pathogenic bacteria, Ascaris suum eggs, Swine vesicular disease virus and indicator organisms. However, this level of pasteurisation will still not reduce the quantity of Clostridia spores, or completely inactivate heat-resistant viruses such as Porcine parvovirus or Salmonella phage 28B.The results still give cause for some concern regarding the use of digested residue from biogasplants in agriculture.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 99, Issue 16, November 2008, Pages 7859–7865
نویسندگان
, , , , , ,