化工进展2015，Vol.34Issue(9)：3456-3461,6.DOI:10.16085/j.issn.1000-6613.2015.09.039
微波协同低碱预处理剩余污泥效果分析
Pretreatment effects of waste activated sludge by combined microwave and low-alkali
摘要
Abstract
Microwave and low-alkali were integrated for waste activated sludge pretreatment with NaOH dosage≤15mg/(gTS). The influences of this technology on the sludge disintegration and sludge characteristics were investigated by comparing the variation of SCOD,soluble protein,soluble total sugar,ammonia nitrogen,pH value and conductivity with increasing microwave time whether adding alkali. The results showed that the combined microwave and low-alkali pretreatment was more effective than microwave or alkali pretreatment alone in cracking sludge. The technology can further improve the ratio of cell lysis and increase the amount of soluble organic matter. The protein dissolution was especially more remarkable. Higher microwave power was beneficial to enhance the synergistic effect. The addition of alkali maintained the pretreated sludge pH value at 9.1-9.5,which helped reduce the decrease of sludge conductivity. However,sludge pretreatment did not change much of the ammonia nitrogen concentration. Therefore,the combined microwave and low-alkali pretreatment would help to improve sludge degradation and electricity production in MFC .关键词
微波/低碱/协同/剩余污泥/预处理Key words
microwave/low-alkali/combination/waste activated sludge/pretreatment分类
资源环境引用本文复制引用
王慧勇,冯泽,陈翔,高丽萍..微波协同低碱预处理剩余污泥效果分析[J].化工进展,2015,34(9):3456-3461,6.基金项目
河北省自然科学基金(E2013402035)及邯郸市科技研究与发展计划(1223109092-8)项目. （E2013402035）
