Cleaner bio-pulping approach for the production of better strength rice straw paper

Nagpal, Raksha; Bhardwaj, Nishi Kant; Mishra, O. P.; Mahajan, Ritu

doi:10.1016/j.jclepro.2021.128539

Cited by 27 publications

(10 citation statements)

References 27 publications

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“…Besides, Previous research results have shown that PBMP, as a promising process, has the great potential to replace PCMP in the future. 4…”

Section: ■ Methodologymentioning

confidence: 99%

Sustainable Papermaking in China: Assessing Provincial Economic and Environmental Performance of Pulping Technologies

Han,

Zhao,

Wei

et al. 2024

ACS Sustainable Chem. Eng.

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There are 100 million tonnes of carbon emissions from China’s paper industries, which attracts growing interest in their sustainability under the dual-carbon targets. Reasonable technological upgrading, waste paper recycling, and waste resource utilization can positively affect the sustainable development of paper manufacturing. Hence, the environmental and economic performance of paper from four pulping technologies (chemical mechanical, chemical, biomechanical, and waste paper pulping) were analyzed via Life Cycle Assessment (LCA) and Life Cycle Costing (LCC) methods. LCA results show that paper from chemical pulp is optimal, reducing 591.6–1385.7 kg CO2 equiv/t compared to others. LCC results indicate paper from biomechanical pulp has the highest economic benefits, with net profits outperforming others by $52.2–84.6/t. Moreover, environmental differences were investigated for papermaking wastes (black liquor (BL) and paper sludge (PS)) management options. The 80% caustic combustion of BL has the best environmental benefits, saving 154.3–331.6 kg of CO2 equiv/t compared to other methods. The production of paperboard from PS is more environmentally friendly, causing 200 kg of CO2 equivalent/t less emissions than landfill. Finally, various waste paper recovery rates (60%, 70%, and 80%) and technology substitution scenarios were designed from the provincial perspective. The results indicate that the current carbon emissions and energy consumption (CEEC) of paper from wood pulp are 13.51 Mt CO2 equiv and 7.05 million GJ, respectively. Based on an 80% recovery rate and the adoption of advanced pulping technologies, the national CEEC can be reduced by 32.4% and 50.06%, respectively. In economic terms, advanced pulping technology application can increase total revenue by 30.2%. With the implementation of the optimal waste management programs, the national CEEC can be reduced by 27.8% and 65.3%, respectively.

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“…Besides, Previous research results have shown that PBMP, as a promising process, has the great potential to replace PCMP in the future. 4…”

Section: ■ Methodologymentioning

confidence: 99%

Sustainable Papermaking in China: Assessing Provincial Economic and Environmental Performance of Pulping Technologies

Han,

Zhao,

Wei

et al. 2024

ACS Sustainable Chem. Eng.

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“…As the world's energy shortage and environmental pollution problems have become increasingly prominent, the direct combustion of straw to obtain thermal energy has been banned. The Chinese government has issued a series of policies to guide the people to comprehensively utilize straw, including straw feed [30], straw returning to fields [31,32], straw energy use [33] (direct combustion power generation and bio gasification use) and straw papermaking [34], and have achieved remarkable results. The percentage of straw consumed by various straw utilization methods to the total straw is shown in Fig.…”

Section: Status Of Comprehensive Utilization Of Strawmentioning

confidence: 99%

Research and Application Progress of Straw

Chen¹,

Mohrmann²,

Li³

et al. 2023

Journal of Renewable Materials

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Straw is a general term for the stem and leaf parts of mature crops, and is a multi-purpose renewable biomass energy resource in the agricultural ecosystem. The prospect of comprehensive utilization of straw has become broad with the development of agricultural production, the advancement of science and technology, and the improvement of the level of agricultural mechanization. The comprehensive utilization of straw plays an important role in enhancing the sustainable development ability of agricultural economy and improving the current situation of comprehensive utilization of agricultural resources in my country. This paper briefly combs the development history of straw and the prospect and current situation of comprehensive utilization, and expounds the separation technology of straw components, straw man-made panels, straw concrete, straw returning technology and oyster mushroom cultivation. It focuses on the description of the component separation technology of straw and the manufacturing process of straw-based panels. The different separation methods and separation effects of cellulose, hemicellulose and lignin were introduced in detail, and the static yield strength (MOR), internal bonding strength (IB) and water absorption thickness of several common straw-based panels were compared and studied (TS). Finally, it summarizes the benefit analysis of the comprehensive utilization of straw by scholars from the perspective of economics, and summarizes the corresponding measures based on their own views.

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“…There are different agricultural wastes to be used in this process such as rice straw, wheat straw, cotton linters, corn stalks and sugarcane bagasse. Between these raw materials, sugarcane bagasse is considered the most recommended raw material for pulp production as it has the largest fiber length [7][8][9][10][11]…”

Section: A Raw Materials For Paper Productionmentioning

confidence: 99%

Production of Paper Using Chemical Pulping Process of Sugarcane Bagasse

Sayed¹,

Hamad²,

Eid³

et al. 2022

International Journal of Industry and Sustainable Development

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There are many sources of solid waste such residential, industrial, commercial, agricultural and biomedical that cause hazardous impact on the environment. The annual production of agricultural waste in Egypt is about 34% of the total amount of waste generation. For this reason; the recycling process is applied to get rid of the different agricultural wastes. The aim of this work is the production of paper from bagasse by applying the chemical process to produce pulp using NaOH as an alkaline reagent. Response Surface Methodology (RSM) was used to optimize the process variables affecting the yield of the product namely as temperature (℃), time (min), and solid to liquid ratio (%). Thus, the mass percent of bagasse to NaOH solution is varied to be 10, 12.5, and 15 %, the temperature of reaction is changed from 160 to 180℃, and the reaction is performed for several retention time varied from 60 minutes to 180 minutes. The optimum conditions are found to be 180 min, 160℃, and solid to liquid ratio of 0.1 to produce pulp with yield equals to 56.8 g for every 100 g of sugarcane bagasse. The produced paper was characterized based on basis weight, tensile strength, tearing strength, and burst strength and it was found that the produced paper is in compliance with the commercial kraft paper.

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Cleaner bio-pulping approach for the production of better strength rice straw paper

Cited by 27 publications

References 27 publications

Sustainable Papermaking in China: Assessing Provincial Economic and Environmental Performance of Pulping Technologies

Sustainable Papermaking in China: Assessing Provincial Economic and Environmental Performance of Pulping Technologies

Research and Application Progress of Straw

Production of Paper Using Chemical Pulping Process of Sugarcane Bagasse

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