Investigation on Characteristics of Microwave Treatment of Organic Matter in Municipal Dewatered Sludge

doi:10.3390/app9061175

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	Investigation on Characteristics of Microwave Treatment of Organic Matter in Municipal Dewatered Sludge
	Wang, Huafang ; Sun, Jie ; Xu, Yuzhe ; Feng, Haowen ; Duan, Ling ; He, Xin
刊名	APPLIED SCIENCES-BASEL
	2019
卷号	9 期号:6 页码:-
关键词	municipal dewatered sludge microwave organic matter
DOI	10.3390/app9061175
英文摘要	This study aimed to utilize a microwave technology to degrade active organic matters of the municipal dewatered sludge in a high-temperature environment. The effects of extraction agent, nanomaterial assistants, and microwave-absorbing agents and activating agents on the degradation efficiency were investigated. Dimethyl carbonate was used as the extraction agent. Nanostructured titanium oxide (TiO2) and zinc oxide (ZnO) exhibited effective assistance in the process of microwave treatment. We also developed a kind of microwave-absorbing agent, which was the sludge-based biological carbon. The sodium sulfate (Na2SO4), calcium hydroxide (Ca(OH)(2)), and magnesium chloride (MgCl2) were selected as activating agents to facilitate the organic matter discharging from the sludge. Through optimizing the experimental factors, it was confirmed that 0.1 wt% TiO2, 0.1 wt% ZnO, 2 wt% dimethyl carbonate, 10 wt% sludge-based biological carbon, 7.5 wt% Ca(OH)(2), 0.5 wt% MgCl2, and 6 wt% Na2SO4 were the most appropriate addition amounts in the municipal dewatered sludge to make the organic matter decrease from 42.17% to 22.45%, and the moisture content reduce from 82.98% to 0.48% after the microwave treatment. By comparison, the organic matter degradation is almost zero, and the moisture content decreases to 8.69% without any additives. Moreover, the residual inert organic matter and sludge can be further solidified to lightweight construction materials by using liquid sodium silicate as the curing agent. The research provides a significant reference for the effective, fast, and low-cost treatment of the organic matter in the municipal sludge.
WOS研究方向	Chemistry ; Engineering ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000464375800016
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/15021]
专题	岩土力学所知识全产出_期刊论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China; 2.Wuhan Text Univ, Sch Mech Engn & Automat, Wuhan 430200, Hubei, Peoples R China; 3.Wuyi Univ, Sch Appl Phys & Mat, Jiangmen 529020, Peoples R China
推荐引用方式 GB/T 7714	Wang, Huafang,Sun, Jie,Xu, Yuzhe,et al. Investigation on Characteristics of Microwave Treatment of Organic Matter in Municipal Dewatered Sludge[J]. APPLIED SCIENCES-BASEL,2019,9(6):-.
APA	Wang, Huafang,Sun, Jie,Xu, Yuzhe,Feng, Haowen,Duan, Ling,&He, Xin.(2019).Investigation on Characteristics of Microwave Treatment of Organic Matter in Municipal Dewatered Sludge.APPLIED SCIENCES-BASEL,9(6),-.
MLA	Wang, Huafang,et al."Investigation on Characteristics of Microwave Treatment of Organic Matter in Municipal Dewatered Sludge".APPLIED SCIENCES-BASEL 9.6(2019):-.