2005/3/16/ · Introduction. Treatment of industrial wastewater in anaerobic bioreactors has grown in importance since the introduction of the Upflow Anaerobic Sludge Blanket (UASB) reactor about 25 years ago [20].Although the general processes occurring in anaerobic biological wastewater treatment plants, such as hydrolysis, fermentation,
2020/5/10/ · Up-flow anaerobic sludge blanket (UASB) reactor belongs to high-rate systems, able to perform anaerobic reaction at reduced hydraulic retention time, if compared to traditional digesters. In this review, the most recent advances in UASB reactor applications are critically summarized and discussed, with outline on the most critical aspects for further
2011/5/27/ · Biological hydrogen production from the anaerobic fermentation of ultrasonic-pretreated paper mill sludge started at a pH of 5.5 and a temperature of 36.5°C. When the sludge reaction time (SRT) was 32 h, the organic loading rate (OLR) was 3 , 000 mg chennai oxygen demand ( COD ) · L - 1 · d - 1 , and the hydrogen production yield was
2014/7/24/ · Abstract. Pulp and paper mills generate large amounts of waste organic matter that may be converted to renewable energy in form of methane. The anaerobic treatment of mill wastewater is widely
2019/8/1/ · Co-digestion with grass silage, cow/pig manure or municipal sewage sludge should then be used to counteract the low nitrogen content of pulp and paper mill sludge. Keywords- Biogas, Anaerobic
2021/6/15/ · Introduction. Paper mill sludge (PMS) is the rejected material generated from digester and paper machines in pulp and paper manufacturing. It is reported that one metric ton paper production gives rise to 40–50 kg dry sludge, and as much as 18.25 and 4–5 million tons of PMS are generated per year worldwide and in the U.S., respectively (de
2011/10/1/ · Karlsson et al. stated that the addition of 0.5 mg Co/L in anaerobic digestion of the excess sludge obtained from an activated sludge unit treating pulp and paper mills effluents in Sweden, has a
2013/5/1/ · Request PDF | Screening pretreatment to enhance thermophilic anaerobic digestion of pulp and paper mill wastewater treatment secondary sludge | The effect of hydrothermal (150 °C for 10
2020/5/6/ · An emerging contaminant, micron-sized zero valent iron (mZVI) has been reported to be accumulated in waste activated sludge (WAS). In the present study, the potential effects of mZVI on WAS anaerobic fermentation performance, as well as the shift of the microbial community composition and function, were assessed. Results from batch
2005/12/1/ · Anaerobic fermentation of palm oil mill effluent (POME) with ozonation doses of 2.0, 5.0, and 10.0 g O 3 L −1 were applied for the contact time of continuous 110 h.
pomace), vi) waste from dairy industry (buttermilk), and vii) waste from meat processing industry (flotation sludge obtained from dissolved air flotation). Due to recalcitrance of lignocellulosic waste, sawdust, hemp stalks and paper mill sludge were chemically pre-treated by 10 v.% citric acid (2 h, 100 °C) to improve fermentation process.
2007/3/1/ · via in-line application of anaerobic treatment in closed circuits (paper kidney technology) further savings on the cost of fresh water intake and effluent discharge levies are generated. Since the early 1980s anaerobic treatment of industrial effluents has found widespread application in the pulp and paper Industry. Over 200 anaerobic plants are
2014/11/15/ · Anaerobic digestion of pulp and paper mill waste at full-scale is currently confined to the treatment of a few selected types of effluent, and the resulting biogas is …
2018/8/1/ · The maximum methane production rate was 3.45 NmL CH 4 /g VS.d and the lag phase was extended to almost 4 days. Wood et al. [11] achieved a biogas production rate of 0.0006 d −1 for non-treated kraft pulp mill secondary sludge in a mesophilic state. The lag phase might be reduced by adequate pre-treatment [8].