%0 Journal Article
%T Characteristics of High Solid Content Sludge with Microwave Irradiation<br>高固体污泥微波热水解特性变化
%A QIAO Wei
%A WANG Wei
%A XUN Rui
%A ZHOU Gang
%A WAN Xiao
%A XIA Zhou
%A <br>乔玮
%A 王伟
%A 荀锐
%A 周刚
%A 万晓
%A 夏洲
%J 环境科学
%D 2008
%I 
%X This paper focus on changes of high solid content sludge (7%, 9% and 13%) hydrolysis with microwave irradiation also anaerobic biodegradation of treated sludge was tested by biochemical methane potential (BMP) procedure. Results showed that microwave irradiation provided a rapid temperature increasing. Hydrolysis accelerated the solubilization of volatile suspended solid (VSS) and suspended solid (SS). COD, TOC, NH4+-N, TN, and TP concentration of liquor sludge increased, while pH decreased. Sludge solid content was found to be the most influential parameter. VSS and SS dissolving ratio of sludge with 13% solid content were lower than sludge with 7% and 9% solid content. 23% of VSS and 18% of SS dissolved for 9% sludge at 170 degrees C with 5 min, SCOD of liquor was 41 g/L, and concentration of TOC and NH4+-N were 30 g/L and 1 g/L respectively. Biodegradation of treated sludge improved. Methane production of 9% sludge at 170 degrees C with 5 min and 10 min were 27% and 30.8% higher than that of untreated sludge. Hydrolysis time increasing from 5 min to 10 min brought an improvement of 4%, 3.6% and 5.7% methane production at 120 degrees C, 150 degrees C and 170 degrees C.
%K microwave irradiation
%K high solid content sludge
%K anaerobic biodegradability<br>微波热水解
%K 高固体污泥
%K 厌氧消化
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=87EC8DF5B1107C83DEE46660B4928E58&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=B31275AF3241DB2D&sid=371466E036DA0FD9&eid=633354CC2908E635&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=17