Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate

A technology of proteolysis solution and porous adsorbent, which is applied in the field of preparation of porous adsorbent, to achieve the effect of wide range of raw materials, large adsorption capacity and regeneration ability

Inactive Publication Date: 2014-12-10
ZHEJIANG OCEAN UNIV
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Problems solved by technology

At present, porous biosorbents are prepared by enzymatic hydrolysis combined with chemical modification and used for the adsorption and removal of heavy metal ions in marine protein hydrolyzate, but there is no report yet.

Method used

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  • Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate
  • Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate
  • Preparation method of porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate

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Embodiment Construction

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0035] The main reagents adopted in the embodiment are shown in table 1:

[0036] Table 1 List of main experimental reagents

[0037]

[0038] The preparation steps are as follows:

[0039] 1. Take bamboo chips as raw material, boil them with distilled water for 1 hour to remove impurities, then place them in an oven, dry them at 80°C for 24 hours, crush them with a pulverizer, pass them through a 100-mesh sieve, wash them with distilled water three times, and dry them at 80°C to obtain the pretreated Bamboo lignocellulose (NB), stored in a desiccator until use.

[0040] 2. Acid-base treatment of bamboo lignin cellulose:

[0041] Bamboo lignocellulose (NB) 40g that pretreatment obtains is mixed with 300mL HCl (1mol / L), suction filtration after ultrasonic treatment 3 hours, ultrasonic treatment adopts 30~50KHz ultrasonic wave, and filter ...

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Abstract

The invention provides a preparation method of a porous adsorbent for adsorbing heavy metals in marine protein enzymatic hydrolyzate. The method comprises the following steps: pretreating a woody plant as a raw material to obtain woody plant cellulose; performing acid and alkali treatment to obtain the woody plant cellulose treated by acid and alkali, and preserving in a direr for later use; performing enzymolysis for degrading; and finally, performing carboxylation modification to obtain the carboxylic woody plant cellulose adsorbent of a porous structure. The preparation method has the characteristics of simple process, convenience in operation, widely available materials and low cost, and the prepared porous adsorbent is green and pollution-free, has an effect of efficiently removing the heavy metal ions in marine protein enzymatic hydrolyzate, can be used for adsorbing various heavy metals in marine protein enzymatic hydrolyzate, such as lead, cadmium and copper, is high in adsorption capacity and good in effect, has the capability of regeneration and recycling, and can be repeatedly used.

Description

technical field [0001] The invention relates to the field of a porous adsorbent, in particular to a preparation method of a porous adsorbent for adsorbing heavy metals in marine protein hydrolyzate. Background technique [0002] With the development of modern economy and the development and utilization of marine resources in the offshore area, a large amount of waste water and domestic sewage containing heavy metal ions are discharged into the sea, the heavy metal pollution in marine water has increased sharply, and the ecological environment has also suffered great damage. Heavy metal ions can be enriched and accumulated through the food chain. A large number of studies have shown that the heavy metal content of fish in seawater has seriously exceeded the standard [He Liang, Fan Biwei. Heavy metals in the marine environment and their impact on marine organisms [J]. Guangzhou Chemical , 2006, 31(3):63–69.]. After marine aquatic products are processed, many waste processing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/62
Inventor 欧阳小琨王阳光金如娜杨乐萍杨立业王崇宇
Owner ZHEJIANG OCEAN UNIV
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