%0 Journal Article
%T Continuous dry fermentation of pig manure using up plug-flow type anaerobic reactor<br>上推流厌氧反应器连续干发酵猪粪产沼气试验研究
%A Chen Chuang
%A Deng Liang-Wei
%A Xin Xin
%A Zheng Dan
%A Liu Yi
%A Kong Chui-Xue
%A <br>Chen C
%A Deng LW
%A Xin X
%A Zheng D
%A Liu Y
%A Kong CX
%J 环境科学
%D 2012
%I 
%X To solve the problems of ammonia inhibition and discharging difficulty in continuous dry fermentation of pig manure, under the experimental conditions of temperature of (25 +/- 2) degrees C and organic loading rate (TS) of 4.44 g x (L x d) (-1), a lab-scale up plug-flow type anaerobic reactor (UPAR) was setup to investigate biogas production, ammonia inhibition, effluent liquidity, and the feasibility of continuous dry fermentation of pig manure using up plug-flow type anaerobic reactor. The experiment was operated for 160 days using the pig manure with four different TS mass fractions (20%, 25%, 30%, 35%) as feeding. Results showed that the feeding TS mass fraction exerted a significant influence on the dry fermentation of pig manure; the stable volumetric biogas production rates of four different feeding TS mass fractions were 2.40, 1.73, 0.89, and 0.62 L x (L x d)(-1), respectively; the biogas producing efficiencies of the reactors with feeding TS mass fractions of 20%, 25% and 30% were obviously superior to that with feeding TS of 35%. With feeding TS mass fraction increased from 20% to 35%, obvious inhibition to biogas producing occurred when concentration of ammonia nitrogen reached more than 2 300 mg x L(-1). When the feeding TS mass fraction was 35%, the concentration of ammonia nitrogen could accumulate to 3 800 mg x L(-1) but biogas production rate decreased 74.1% of that with feeding TS of 20%. Additionally, while the feeding TS mass fraction was 35%, the effluent TS mass fraction achieved 17.1%, and the velocity of effluent was less than 0.002 m x s(-1) the effluent of UPAR could not be smoothly discharged.
%K pig manure
%K up plug-flow type anaerobic reactor (UPAR)
%K continuous dry fermentation
%K ammonia inhibition
%K effluent liquidity<br>猪粪
%K 上推流式厌氧反应器(UPAR)
%K 连续干发酵
%K 氨抑制
%K 流动性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=B42EDD6608FE925AF5032AD530FEBF01&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=38B194292C032A66&sid=BE9F677535B03A98&eid=FC27EB98080C89E6&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=26