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
2016/3/1/ · Pulp and paper mill sludge (PPMS) is the main organic residual generated from the wastewater treatments of the pulp and paper industry. The annual world production of paper and paperboard is estimated to 400 million tons ( FAOSTAT, 2015 ) and is predicted to reach up to 550 million tons by 2050, which could increase the PPMS production by 48
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 ).
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
2021/5/20/ · Paper mill sludge (PS), a solid waste from pulp and paper industry, was investigated as a feedstock for acetone-butanol-ethanol (ABE) production by simultaneous saccharification and fermentation
2023/8/21/ · Polyaluminum chloride (PAC) is used widely and increasingly in wastewater treatment plants, resulting in its inevitably high production in sludge. Previous studies have indicated that the production of short-chain fatty acids (SCFAs) is inhibited by the existence of PAC in sludge anaerobic fermentation, so it is necessary to study how to promote sludge
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
2. Trends in paper mill sludge generation The pulp and paper industry produce over 304 m illion tons of paper per year. In 2005, soley in Europe, 99.3 million tons of paper was produced which generated 11 million tons of waste and represented 11 % residue in relationship to the total paper production. The
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
2011/5/17/ · Use of the mixture of prehydrolysate and pulp mill sludges as the fermentation feed, however, can increase the product concentration. In bioconversion of sludge, a certain amount of water is added to attain fluidity required for SSF operation. In this study, prehydrolysate, in place of water, was added into the bioreactor along with the sludge.
2019/4/1/ · The best fermentation conditions were fermentation time of 5.72 days, initial material liquid ratio of 1:4.58, initial pH of 6.32 and fermentation temperature of 28.8 ℃, with a filter paper
Paper mill sludge (PMS) is a solid by-product of the pulping and paper-making process, produced in large quantities of about 300– 350 million tons every year (Ioelovich, 2014).
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
2022/12/1/ · Over 50% of the total paper mills sludge produced are currently being landfilled or incinerated, which cause both environmental and financial problem [23]. On average, 60% of the total wastewater treatment costs of pulp and paper mills account for sludge disposal [24]. Therefore, paper mill sludge is now considered as a negative-cost
2016/1/1/ · ABE fermentation of paper sludge by Clostridium acetobutylicum required partial removal of ash in PS to enhance its enzymatic digestibility. Paper mill sludge has been evaluated as a feedstock for ethanol and lactic acid production, and results have been positive (Budhavaram and Fan, 2009, Kang et al., 2011, Lark et al., 1997, Marques et al ...