Method and application for preparing simple, efficient and inexpensive dye adsorbent
An adsorbent, high-price technology, applied in the field of preparation of dye adsorbents, can solve the problems of cumbersome preparation process, unfavorable wide application of adsorbents, high cost, and achieve the effects of simple production process, low cost and sufficient materials
Inactive Publication Date: 2015-03-25
JISHOU UNIVERSITY
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Problems solved by technology
Due to the high efficiency of adsorption treatment and no polluting by-products, it has now been used to treat dye wastewater. However, most of the currently used adsorbents have the disadvantages of cumbersome preparation process and high cost, which is not conducive to the wide application of adsorbents.
Method used
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Embodiment 1
[0039] Take the mature leaves of Chongyang wood, dry them at 75°C for 48 hours, take them out, grind them and sieve them to get a powder with a particle size of about 300-800 μm, soak the obtained powder with 75% ethanol for about 30 minutes, and take the precipitate Rinse three times with 10mM (pH=4.5) phosphate buffer, take the precipitate and dry it to constant weight at 75°C, and use a mortar to crush the agglomerated leaf powder until it is uniform, then it can be used as an adsorbent for decolorization.
[0040] Wastewater (chromaticity is about 50000 times, pH=9) is taken from a printing and dyeing factory, precipitated and filtered as a decolorization solution, and the dye wastewater is decolorized by using the adsorbent provided by the invention. The prepared adsorbent is directly added to the waste water, so that the concentration of the adsorbent in the waste water is 1.5g / 100ml, and the decolorization is carried out in a static state at a room temperature of 20° C.,...
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Abstract
The invention provides a biological adsorbent which is simple to prepare, high in efficiency and low in cost and used for removing dye in waste water. A method for preparing the biological adsorbent includes the steps of drying and smashing leaves of bischoffia javanica, washing by ethanol and phosphate buffer to remove soluble pigment and impurities, taking precipitate and drying, and sieving to prepare the adsorbent to remove dye. The method for preparing the adsorbent is simple in process. Compared with other conventional adsorbents, the adsorbent is low in cost and high in absorbing efficiency. In addition, the bischoffia javanica is one of common border trees and ornamental trees for gardens in south of China, is sufficient in material source, and the problem about high cost, long consumption time and secondary pollution caused by recycling of the adsorbent is reduced.
Description
technical field [0001] The invention specifically relates to a simple, high-efficiency and cheap preparation method of dye adsorbent. Background technique [0002] Dye wastewater is mainly wastewater discharged from dye manufacturing, printing and dyeing, and textile industries, which is toxic and carcinogenic to organisms. Conventional dye removal methods in dye wastewater include physical, chemical and biological treatments. However, due to higher cost and secondary pollution problems, physical and chemical treatment methods are not widely used. Bioaccumulation and biodegradation in biological treatment methods are considered to be better methods for removing dyes from dye wastewater, but the bioaccumulation and biodegradation methods have the disadvantage of taking a long time because dye compounds are resistant to biological treatment , and the by-products or secondary metabolites of the biodegradation of the dye may have higher toxicity than the original substrate (Ra...
Claims
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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F103/30
Inventor 何兴兵林永慧韩国民马陶武胡文勇田启建肖竹平
Owner JISHOU UNIVERSITY