Cyclodextrin modified nanosphere sludge conditioning agent and preparation method thereof

A technology of sludge conditioning and cyclodextrin, applied in the direction of dehydration/drying/concentrating sludge treatment, etc., can solve the problems of poor dehydration performance and small application range, and achieve good thermal stability, convenient operation and good dehydration performance. Effect

Inactive Publication Date: 2017-08-04
北京尚水清源水处理技术有限公司
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Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a cyclodextrin modified nanosphere sludge conditioner and preparation method thereof, in order to solve the technical problems of poor dehydration performance and small application range in the prior art, so as to obtain a A nanoparticle sludge conditioner with good dehydration and environmental performance

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  • Cyclodextrin modified nanosphere sludge conditioning agent and preparation method thereof

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Embodiment Construction

[0016] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made within the spirit and scope of the present invention.

[0017] In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

[0018] In the following paragraphs the invention is described more specifically by way of example with reference to the accompanying drawings. It should be noted that all the drawings are in simplified form and use inaccurate scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of t...

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Abstract

The invention discloses a cyclodextrin modified nanosphere sludge conditioning agent and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing a beta-cyclodextrin solution with the concentration of 0.2 to 0.6 percent with deionized water or distilled water, and adjusting a pH value to be 2 to 6 with HC1 or H2SO4; secondly, adding 0.6 ml of 2,3-epoxypropyltrimethylammonium chloride (ETMAC) into 50 ml of the cyclodextrin solution, and then pouring a mixed solution into a 100 ml flask filled with a condensing reflux pipe; thirdly, heating the mixed solution to be 200 to 210DEG C by using a magnetic stirrer and continuously stirring the mixed solution for 1 to 3 hours; and fourthly, carrying out vacuumizing freeze drying treatment on an obtained solid at a temperature of 45DEG C below zero for 24 hours and then collecting, thus obtaining the sludge conditioning agent. The cyclodextrin modified nanosphere sludge conditioning agent disclosed by the invention has excellent dehydration and environmental protection properties and is suitably used as a conditioning agent for sludge treatment.

Description

technical field [0001] The invention relates to the technical field of sludge conditioners, in particular to a cyclodextrin-modified nanosphere sludge conditioner and a preparation method thereof. Background technique [0002] Cyclodextrin (Cyclodextrin, CD) was first discovered in 1891 by Villiers from the starch digestive juice of Amylobacter amylobacter, and it has a history of more than 100 years. It is formed by cyclodextrin glucose residue transferase Cyclodextringlycosyltransferase (CGTase) acting on glucose polymers such as starch, glycogen, and maltooligosaccharides. It consists of 6-12 D-glucopyranose groups and α-1,4 - Cyclic oligosaccharides linked by glucosidic bonds. The cyclodextrins currently used in industry are mainly α-, β- and γ-cyclodextrins and their derivatives, which correspond to 6, 7 and 8 glucose units respectively, and β-cyclodextrin is the most widely used. [0003] As early as the 1930s, it was confirmed that cyclodextrin could form an embeddi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/14
CPCC02F11/14
Inventor 虞红波杨鹏张伟军王东升
Owner 北京尚水清源水处理技术有限公司
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