Keywords Papermillsludges.Ethanol.SSF.SSCF.Bioconversion Introduction The pulp and paper industry generates 4–5 million tons of sludges per year in the US [1].
2011/4/27/ · hardwood pulp and kraft paper sludge was investigated. Cellulase on-site production is a supplementary unit in a kraft paper mill in parallel with or in place of bioethanol. Using cellulase and Saccharomyces cerevisiae on kraft paper sludge, which is waste from the kraft pulp making process, it is possible to produce bioethanol. It is feasible
2011/8/9/ · clarifier unit of a Boise Paper Company kraft paper mill (Jackson, AL, USA). The The consistency of the sludge slurry before the clarifier was between 0.5 and 3.0%.
2010/5/1/ · Along with KL, the paper mill sludge (PMS) is also generated as a waste in large volumes from the pulp and paper industries. 12 Being a waste material, its cost of disposal is about $20−$50 per
2011/5/17/ · Using cellulase and Saccharomyces cerevisiae on kraft paper sludge, which is waste from the kraft pulp making process, it is possible to produce bioethanol. It is
2020/4/1/ · A new process for the production of bioethanol from paper mill sludge (PMS) is described in this work. PMS biomass feedstock was processed via the simultaneous saccharification and fermentation
2010/10/1/ · Two recombinant xylose‐fermenting microbes under optimal conditions achieved a 19% higher overall conversion of paper sludge to ethanol than the non‐xylose utilizing S. cerevisiae D5A at its optimal process temperature of 37°C. Simultaneous saccharification and co‐fermentation (SSCF) of waste paper sludge to ethanol was
2012/7/1/ · 1. Introduction. Japan alone annually discards more than 5 Tg of paper sludge (PS). As a comparison, the discarded amount of PS in the United States, the United Kingdom and China is approximately 8, 2 and 12 Tg annually, respectively [1], [2], [3].The recycling process and reutilization of PS worldwide is urgently needed to reduce carbon dioxide
2021/5/20/ · Paper mill sludge (PMS) raises critical environmental issues due to its disposal problem, but its high sugar content and well-dispersed structure make it a great feedstock for biochemical production.
2022/4/1/ · Pulp and paper mills generate large quantities of waste in the form of cellulose-rich paper mill sludge (PMS), which is commonly disposed of in landfills or by incineration. The utilization of this waste is commonly inundated with low product yields due to high ash content, which results in decreased enzymatic hydrolysis ( Tawalbeh et al., 2021 ).
2015/1/6/ · Paper mill sludge is a solid waste material composed of pulp residues and ash generated from pulping and paper making process. The carbohydrate portion of the sludges from Kraft/Recycle paper mill has chemical and physical characteristics similar to those of commercial wood pulp. Because of its high carbohydrate content and well-dispersed
2011/9/29/ · Background Ethanol production from paper sludge (PS) by simultaneous saccharification and fermentation (SSF) is considered to be the most appropriate way to process PS, as it contains negligible lignin. In this study, SSF was conducted using a cellulase produced from PS by the hypercellulase producer, Acremonium cellulolyticus C-1 for PS
2024/4/19/ · Paper sludge (PS) from paper mills has a significant potential for bioethanol production. In this study, waste-paper-containing PS is used as the raw material for bioethanol production because the annual waste paper utilization rate has increased globally. Although PS does not require delignification, the antiseptics and deinking agents in waste
2024/1/26/ · Due to the organic content, the landfilled paper mill sludge is subject to aerobic and anaerobic decay. Theoretically, when landfilling 1 ton of low-ash paper mill sludge (<30% ash), approximately 2.69 tons of CO 2 and 0.24 tons of CH 4 are released into the environment . SPS volumes are lower than those corresponding to the PS, since most of
2023/8/20/ · A sustainable industrial future involves the exploitation of renewable resources to obtain a wide diversity of products and energy and the decrease of waste generation. Primary sludge (PS) from pulp and paper mills is a lignocellulosic residue mainly consisting of cellulose and hemicelluloses that can be converted to bioethanol. In the …