Modified corn-core powder for enhancing sludge dewaterability: Synthesis, characterization and sludge dewatering performance

Zhiying Guo; Liping Ma; Quxiu Dai; Xinbo Yang; Ran Ao; Jie Yang; Jing Yang; Wengang Li

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Modified corn-core powder for enhancing sludge dewaterability: Synthesis, characterization and sludge dewatering performance

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Modified corn-core powder for enhancing sludge dewaterability: Synthesis, characterization and sludge dewatering performance
- Chinese Journal of Chemical Engineering Vol. 32, Issue 4, Pages: 368-377(2021)
- Affiliations：
  
  1. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology,Kunming,China,650500
  2. Yunnan Tianlang Energy Saving&Environmental Protection Group Co. Ltd,Kunming,China,650300
  3. College of Resources and Environment, Chengdu University of Information Technology,Chengdu,China,610225
  4. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology,Xi'an,China,710000
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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Zhiying Guo, Liping Ma, Quxiu Dai, Xinbo Yang, Ran Ao, Jie Yang, Jing Yang, Wengang Li. Modified corn-core powder for enhancing sludge dewaterability: Synthesis, characterization and sludge dewatering performance[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 368-377.
DOI：

Zhiying Guo, Liping Ma, Quxiu Dai, Xinbo Yang, Ran Ao, Jie Yang, Jing Yang, Wengang Li. Modified corn-core powder for enhancing sludge dewaterability: Synthesis, characterization and sludge dewatering performance[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 368-377. DOI：

摘要

Abstract

The high water content of sludge has always posed significant challenges for its treatment. Synthetic flocculants

which are widely used in sewage treatment plants

can cause secondary pollution during their production and use. Thus

natural polymer flocculants made of natural materials have received increased research attention recently. Corn-core

an agricultural waste

was modified through alkalization with sodium hydroxide (NaOH) and etherification with cetyltrimethylammonium bromide (CTMAB) in this study. The L

) orthogonal array was used to study the modification conditions. The moisture content (MC) of treated sludge was reduced by approximately 37% with the addition of modified corn-core powder (MCCP)

which was synthesized under optimal conditions. In addition

changes in the functional groups of the material before and after modification were determined by FT-IR. Thermogravimetric analysis indicated that MCCP was steady at room temperature

moreover

BET analysis showed that MCCP had greater surface area. The microstructures of material before and after modification were examined by scanning electron micr

oscopy

revealing that MCCP had a flake-shaped structure and had an increased area of contact area with sludge particles. MCCP is a dehydrating agent that can enhance sludge dewaterability through charge neutralization and re-agglomeration and provide superior economic benefits.

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