Research on coating modification and application of papermaking Fenton sludge
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Huiming Fan
Abstract
In order to solve the environmental problems caused by landfilling and incineration of Fenton sludge, realize the recycling of papermaking solid waste. In this paper, we explored the formation of a layer of calcium carbonate coating on the surface of Fenton sludge by crystallization coating in the Fenton sludge-[Ca(OH)2/H2O]-CO2 three-phase reaction system to improve the brightness of Fenton sludge and apply it to the filling of paper. The effects of particle size, temperature, stirring rate and calcium hydroxide addition on crystallization coating effect were studied. The advantages and disadvantages of the coating effect are mainly judged by the brightness and dustiness of the powder material. The research results show that when the particle size is 38–48 μm, the temperature is 25 °C, the stirring speed is 600 r/min, and the ratio of calcium hydroxide to Fenton sludge is 2:1, the brightness of the composite can be increased from 3.56 % ISO to 64.24 % ISO.
Funding source: Natural Science Foundation of Guangdong Province
Award Identifier / Grant number: B6191170
Funding statement: This work was supported by Natural Science Foundation of Guangdong Province. Grant number: B6191170.
Acknowledgments
This work was financial supported by Natural Science Foundation of Guangdong Province (No. 2019A1515012188).
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Conflict of interest: The authors report no declarations of interest.
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Articles in the same Issue
- Frontmatter
- Biorefinery
- Characteristics of potassium hydroxide lignin from corn stalk and dhaincha
- Bark from Nordic tree species – a sustainable source for amphiphilic polymers and surfactants
- Proposal for the conversion of Eucalyptus urograndis into bioethanol via acid hydrolysis, using the concepts of biorefineries
- Chemical pulping
- Dissolving pulp and furfural production from jute stick
- Bleaching
- The impact of bleaching on the yield of softwood kraft pulps obtained by high alkali impregnation
- Paper technology
- To improve the disintegration potential of toilet grade tissue paper
- Paper physics
- Mechanical response of paperboard to rapid compression
- Effect of saturation adsorption of paper strength additives on the performance of paper
- Paper chemistry
- Conservation and enhancement of naturally aged paper using bi-functionalized polyamidoamine (SiPAAOH)
- Study on manufacturing hot water-resistant PVOH coated paper by gas grafting palmitoyl chloride (I) – Penetration of palmitoyl chloride during gas grafting of PVOH-coated paper
- Effect of cellulose fiber graft copolymerization with glycidyl methacrylate on the papermaking process retention and drainage aid performance
- Packaging
- Edible film production using Aronia melanocarpa for smart food packaging
- Recycling
- Research on coating modification and application of papermaking Fenton sludge
- Nanotechnology
- Production of cellulose micro/nanofibrils with sodium silicate: impact on energy consumption, microstructure, crystallinity and stability of suspensions
- Miscellaneous
- Dewatering properties of pulps made from different parts of a Norway spruce (Picea abies)
- Network model for predicting structural properties of paper
