화학공학소재연구정보센터
Bioresource Technology, Vol.102, No.11, 6529-6535, 2011
Effects of sulphur and Thiobacillus thioparus on cow manure aerobic composting
A simulated aerobic composting experiment was used to explore the effects of sulphur and Thiobacillus thioparus during six manure composting treatments. The addition of sulphur led to a decrease of the pH level within the range 6-6.3, which was lower than the control treatment (CK). The concentration of ammonium nitrogen in T1 (0.25% sulphur), T2 (0.5% sulphur), T3 (0.25% sulphur + T. thioparus) and T4 (0.5% sulphur + T. thioparus) were much higher than the ammonium N in CK. The results indicated that addition of sulphur could increase the concentration of ammonium N and reduce loss of nitrogen. However, excess sulphur had a negative effect on temperature and Cl. Addition of T. thioparus could increase concentration of available S. alleviate these negative influences and reduce compost biological toxicity. (C) 2011 Elsevier Ltd. All rights reserved.