harmless disposal
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Processes ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 2105
Author(s):  
Bangxi Zhang ◽  
Rongxiu Yin ◽  
Yi Tan ◽  
Beibei Fan ◽  
Hangyu Li ◽  
...  

This study investigated the effects of different proportions (0%, 5%, 10%, 15%) of bulking agent (vinasse, mushroom bran, and tobacco powder) on maturity and gaseous emissions in chicken manure composting. The results showed that all of the treatments reached the standard of harmless disposal. With the exception of the control treatment, the CH4, N2O, and NH3 emissions in the treatments that had been prepared using the addition of mixed bulking agents were effectively reduced by 2.9–30.6%, 8.30–80.9%, and 37.3–26.6%; their compost maturity also met the Chinese national standard. Specifically, 10% mushroom bran combined with 5% tobacco powder was the optimal combination for simultaneously improving the maturity and reducing greenhouse gas emission in chicken manure composting.


2021 ◽  
Vol 760 ◽  
pp. 143968
Author(s):  
Hanlin Shen ◽  
Bo Liu ◽  
Christian Ekberg ◽  
Shengen Zhang

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