%0 Journal Article
%T The Stratification of Moisture Content and Its Dynamics in Co-composting of Sewage Sludge and Pig Manure<br>城市污泥-猪粪混合堆肥过程中湿度的层次效应及其动态变化
%A LUO Wei
%A CHEN Tong bin
%A GAO Ding
%A ZHENG Yu qi
%A ZHENG Guo di
%A <br>罗维
%A 陈同斌
%A 高定
%A 郑玉琪
%A 郑国砥
%J 环境科学
%D 2004
%I 
%X The experiment of co-composting of sewage sludge and pig manure was studied. The moisture contents were 50.82%-60.87% at the stage of temperature rising and 38.7%-52.17% at the stage of thermophilic fermentation, and the stratification of moisture content were not obvious for both stages because the door, the internal wall and the depth of the composting bay had little effect on the stratification. At the stage of cooling, the moisture content was 24.54%-49.39%, and the stratification of moisture content was remarkable as the door, the internal wall and the depth of the composting bay had great influence on it. At the stage of maturity, the moisture content was 19.18%-49.34%, and the stratification of moisture weakened, for which the door and the internal wall were mainly responsible. At the different composting stage, the degree of difference of moisture content on the profiles of the pile was of the order: maturity stage > cooling stage > thermophilic stage = temperature rising stage, and the moisture content in the pile was as follows: the lower > the middle > the upper. The relation between moisture content and composting time meeted with two-order kinetics equation.
%K sewage sludge
%K pig manure
%K co composting
%K moisture content
%K stratification<br>城市污泥
%K 猪粪
%K 混合堆肥
%K 湿度
%K 层次效应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=8A95C1B8D910A5D4&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=0B39A22176CE99FB&sid=B0EBA60720995721&eid=3986B25773CB6C30&journal_id=0250-3301&journal_name=环境科学&referenced_num=7&reference_num=13