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
1994/1/1/ · In general, anaerobic-aerobic systems have been reported to have Anaerobic treatment in pulp- and paper-mill waste management 13 lower operations costs than aerobic treatment because of the reduced aeration-energy requirements and excess sludge production, and because of the methane recovery (Rekunen et al., 1985; Minami et al.,
2022/5/1/ · With regard to nutrient supply, paper sludge is considered a suitable co-substrate for fermentation in anaerobic digestion MBTs. The higher heating values (HHV)
Secondary treatment of pulp and paper mill wastewaters for biochemical oxygen demand (BOD) removal worldwide has traditionally been accomplished, and particularly in North America, by aerobic treatment processes, including aerated stabilization basin and activated sludge. by aerobic treatment processes, including aerated stabilization basin ...
2021/8/1/ · Meanwhile, the fermentation at 55 °C (thermophilic) led to a 15.7% improvement in the VFA yield for the raw sludge and an inhibitory effect on the pretreated sludge [53]. The fermentation of thermally hydrolyzed sludge produced acetate followed by butyrate dominated fermentate with higher valerate content.
2022/7/18/ · Papermill sludge was collected from M/s Yash Paper Mill located at Ayodhya, Uttar Pradesh, India, and used for isolation of ligninolytic bacteria using the enrichment method. Enrichment of ligninolytic bacteria was done in MSM amended with 500 mg L −1 KL and 0.5% glucose at 30 °C for 5 days.
2018/9/19/ · In spite of the high reduction (97%) of the tannin content of the pulp and paper industry effluents, 10 days were necessary for the obtainment of this result using the aerobic granular sludge
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
2018/10/1/ · Sludge samples were received from an integrated pulp and paper mill in Canada. The mill generates 3 different types of primary sludge, as well as secondary sludge (biosludge) (Table 1).Samples were shipped via courier to the University of Toronto and stored at 4 °C, to minimize microbiological activity and the associated changes in sludge
2024/4/1/ · On the other hand, PRM sludge has 65.64% of fixed solids, while the literature reported between 15 and 30% for paper/pulp mill sludge (Xu and Lancaster, 2008; Zhang et al., 2011, 2021). The organic matter of the PRM sludge may have decreased due to the sun-drying process, as described previously, or due to the management of the sludge during
2024/4/30/ · The relevant studies will provide new sights into sludge fermentation and guidance for sludge disposal. We are inviting research papers and reviews about novel insights on sludge fermentation. The aim of this Special Issue is to provide an insight into the latest findings of sludge fermentation, including the biologically volatile fatty acids
2021/8/11/ · Pulp and paper mill sludge (PPMS) represents a large part of the industrial waste and contains a high portion of the organic matter (Elliott and Mahmood, 2012a).Sludge waste is produced from both virgin and recycled paper production processes (Simão et al. 2018).However, this substrate is usually undesirable and needs to be treated or disposed of
2017/1/1/ · It has been estimated that the total effluent discharged annually from these mills is about 40,000 million m 3, assuming an average of 200 m 3 of effluent per ton of pulp and paper [7]. If untreated effluent from pulp and paper mills is discharged into surrounding water bodies, the water quality is severely impaired.
2016/3/1/ · Pulp and paper production requires large amounts of water, ranging between 15 and 100 m 3 Mg −1 dry pulp, used as reaction media and wash water (Ackermann et al., 1999, IPPC, 2001, CANMET, 2005, Ashrafi et al., 2015), which effluent needs to be treated before being released to the environment.PPMS is the organic residual material remaining …