Straw Sludge Adsorbent Preparation and Characteristics of Research

LIU Bin; WEI Jin-zhi; LEI Jin-ming; MENG Hui-shan; ZHOU Xue-bo

doi:10.15938/j.jhust.2019.02.016

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Straw Sludge Adsorbent Preparation and Characteristics of Research

更新时间：2026-08-31

- Straw Sludge Adsorbent Preparation and Characteristics of Research
- Vol. 24, Issue 2, Pages: 109-114(2019)
- 作者机构：
  
  哈尔滨理工大学化学与环境工程学院,哈尔滨,150040
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2019.02.016
  CLC： X703.1
- Published：2019
- 稿件说明：
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LIU Bin, WEI Jin-zhi, LEI Jin-ming, et al. Straw Sludge Adsorbent Preparation and Characteristics of Research[J]. 2019, 24(2): 109-114.
DOI：

LIU Bin, WEI Jin-zhi, LEI Jin-ming, et al. Straw Sludge Adsorbent Preparation and Characteristics of Research[J]. 2019, 24(2): 109-114. DOI： 10.15938/j.jhust.2019.02.016.

摘要

为了研究对于污泥和秸秆这两种废物的资源化利用，采用化学活化—高温焙烧的方式以污泥和秸秆为原料制备一种新型的价格低廉的吸附材料，并且使这种吸附材料对染料废水有脱色功能。通过对吸附剂颗粒进行热重分析，机械强度测定以及电镜分析筛选出最佳的制备条件，然后对亚甲基蓝染液进行吸附性能研究。实验结果表明，当活化剂采用KOH，焙烧温度为850℃、焙烧时间为1h、秸秆与污泥原料比为1∶4为最佳制备条件。当亚甲基蓝染液浓度为20mg/L、吸附时间在5h左右时所制备的吸附剂对亚甲基蓝染液的脱色率最高，其最高脱色率达到80%以上。解吸实验表明，该颗粒吸附剂在0.05mol/L的HCl溶液中解吸4h时解吸率可高达78.6%。

Abstract

In order to achieve the purpose of sludge and straw resourceutilization

a new type of low cost adsorbent was prepared by high temperaturesintering with sludge and straw as raw materials

and it could adsorb dye wastewater. The bestpreparation conditions were screened by thermogravimetric analysis

mechanicalstrength measurement and electron microscopy analysis. Then

the adsorptionperformance of methylene blue dye was studied.Experimental results show thatwhen using the activator KOH

carbonized at 850℃

carbonization time was 1h

straw sludge feed ratio of 1∶4to optimal conditions.When the concentration of methylene blue solution is 20mg/L and the adsorptiontime is about 5 hours

the decolorization rate of methylene blue dye is thehighest

and the highest decolorization rate is more than 80%.Desorption experiments showed that the desorption rate of the granule adsorbentin the 0.05mol/LHCl solution was as high as 78.6%.

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