NDLI: Research on improvement of the sludge odor by using HAS soil stabilizer and mechanism

Content Provider	IEEE Xplore Digital Library
Author	Yanli You Min Zhou Haobo Hou Na Wei Ruili Shen
Copyright Year	2011
Description	Author affiliation: Hubei Institute of Geological Survey, Wuhan, China (Ruili Shen) \|\| College of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China (Yanli You) \|\| School of Civil Engineering and Architecture, Wuhan polytechnic University, China (Na Wei) \|\| School of Resources and Environmental Science, Wuhan University, China (Min Zhou; Haobo Hou)
Abstract	The instability of the sludge will cause odor and other environmental pollution in the process of disposal and reuse. HAS soil stabilizer, Lime and Portland cement are used in this paper to modify the sewage. The experimental results showed that added by a certain content of the HAS Soil Stabilizer in sludge would be a good modification effect on removing Ammonia and Hydrogen Sulfide. When the curing time was 14d and the content was 15%, the concentration of Ammonia was 5µg/L and the removal rate could reach 93.5%. When the curing time was 3d and the content was10% or more, the concentration of Hydrogen Sulfide can be reduced to below 0.06µg/L and the removal rate could reach 95%µ conforming to the relative standards. The SEM photos of 15% HAS modified sludge showed that Ettringite and Calcium Silicate hydrate crystals were the mainly hydration products, they formed a kind of three-dimensional crystal network and completely changed the original sludge structure, which effectively prevented the organic matter to further decay, made the sludge stabilized and achieved the improvement of sludge odor.
Starting Page	2481
Ending Page	2484
File Size	511264
Page Count	4
File Format	PDF
ISBN	9781424494361
e-ISBN	9781424494392
DOI	10.1109/MACE.2011.5987486
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Odor pollution Calcium Hydrogen Hydration products Crystals Soil Curing Three dimensional displays Sludge Modifier
Content Type	Text
Resource Type	Article

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