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A kind of polybutylene succinate composite carbon source filter material and its preparation method and application

A polybutylene succinate and composite carbon source technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as unfavorable denitrification and SS removal, and achieve lower prices, lower effluent DOC, The effect of high mechanical strength

Active Publication Date: 2019-11-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific surface area of ​​the filter material is related to the particle size. Generally, the particle size of the filter material is 3-6mm. If the particle size is too small, it is easy to be sheared and washed by water. If the particle size is too large, it is not conducive to denitrification and SS removal;

Method used

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  • A kind of polybutylene succinate composite carbon source filter material and its preparation method and application
  • A kind of polybutylene succinate composite carbon source filter material and its preparation method and application
  • A kind of polybutylene succinate composite carbon source filter material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In the first aspect, the preparation of novel PBS / BP filter material is carried out.

[0041] The PBS / BP filter material comprises the following components by weight percentage: PBS (49.9%, Anqing Hexing Chemical Co., Ltd., model is Z101), bamboo powder (49.9%) and additive (0.2%, foaming agent, Gongyi City Tai Power Chemical Trading Co., Ltd., model AC, gas output is 220ml / g, decomposition temperature is 200°C). The preparation steps are:

[0042] Step 1: Take and weigh PBS, bamboo powder and additives to a mixer for melting and blending according to the component formula to obtain a blend;

[0043] The bamboo powder described in step one is 100 order moso bamboo powder, and used additive is whipping agent. The melting and blending temperature of the kneader is 135-145°C, the motor speed is set to 8r / s when feeding, and the motor speed is adjusted to 12r / s after all the components are added, and the mixed filler is taken out after 15 minutes;

[0044] Step 2: Put th...

Embodiment 2

[0052] In the first aspect, the preparation of novel PBS / LP filter material is carried out.

[0053] The new PBS / LP filter material comprises the following components by weight percentage: PBS (49.9%, Anqing Hexing Chemical Co., Ltd., model Z101), longan kernel powder (49.9%) and additives (0.2%, blowing agent, Gongyi City Taili Chemical Trading Co., Ltd., model AC, gas generation is 220ml / g, decomposition temperature is 200°C). The preparation steps are:

[0054] Step 1: Take and weigh PBS, longan seed powder and additives according to the component formula and melt and blend them in a mixer to obtain a blend.

[0055] The longan seed powder described in step one is 100 orders, and the used additive is foaming agent. The melting and blending temperature of the kneader is 135-145°C, and the motor speed is set to 8r / s when feeding. After all the components are added, the motor speed is adjusted to 12r / s, and the mixed filler is taken out after 15 minutes.

[0056] Step 2: Pu...

Embodiment 3

[0064] In the first aspect, the preparation of novel PBS / BP / starch filter material is carried out.

[0065] Novel PBS / BP / starch filter material comprises the following components by weight percentage: PBS (33.3%, Anqing Hexing Chemical Co., Ltd., model is Z101), bamboo powder (33.3%), longan kernel powder (33.2%) and additive (0.2%, foaming agent, Gongyi City Taili Chemical Trade Co., Ltd., model AC, gas production is 220ml / g, decomposition temperature is 200°C). The preparation steps are:

[0066] Step 1: Take and weigh PBS, bamboo powder, longan seed powder and additives according to the component formula to a mixer for melting and blending.

[0067] The bamboo powder described in step one is 100 mesh moso bamboo powder, and the longan nuclear powder is also 100 mesh, and the used additive is foaming agent. The melting and blending temperature of the kneader is 135-145°C, and the motor speed is set to 8r / s when feeding. After all the components are added, the motor speed i...

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Abstract

The invention discloses a polybutylene succinate (PBS) compounded carbon source filter material, and a preparation method and an application of the filter material. The PBS compounded carbon source filter material comprises the following components by mass percentage: 30-55% of PBS, 40-69% of bamboo powder and / or longan shell powder and 0.05-5% of foaming agent. The bamboo powder and / or the longan shell powder are / is doped to the PBS filter material, so that the price of the filter material is reduced; and doping of the bamboo powder changes the performance of the surface of the filter material, so that adhesion and growth of microorganisms are easier, and quick start of a denitrification filter tank is realized. Particularly, joint adding of the bamboo powder and the longan shell powder can generate synergistic action, so that the adhesion and the growth of the microorganisms are easier, a denitrification effect is better, and DOC of outlet water is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of denitrification water treatment, in particular to a polybutylene succinate composite carbon source filter material and a preparation method and application thereof. Background technique [0002] At present, water environmental pollution has attracted great attention from all walks of life, and has become one of the important restrictive factors for the further development of my country's economy. Biological filter is a research hotspot in the field of sewage biological treatment in recent years. This technology has simple process, high treatment efficiency, large treatment water volume, stable effluent water quality, compact equipment structure, small footprint, convenient operation and management, and easy to realize automatic control. It has a wide range of applications, and integrates biodegradation and interception of suspended solids, saving secondary sedimentation, and has the advantages of low inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16C02F3/00
CPCB01D39/1676B01D2239/10B01D2239/1208C02F3/00
Inventor 刘德钊李加伟朱松明刘刚邓亚乐李长伟蓝丽华
Owner ZHEJIANG UNIV
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