A high-rate high temperature anaerobic digestion system for sludge treatment

2014 ◽  
Author(s):  
Dang Ho
Keyword(s):  
High Temperature ◽  
Anaerobic Digestion ◽  
High Rate ◽  
Sludge Treatment

Application of high rate, high temperature anaerobic digestion to fungal thermozyme hydrolysates from carbohydrate wastes

2009 ◽  
Vol 43 (9) ◽  
pp. 2531-2539 ◽  
Author(s):  
C. Forbes ◽  
C. O'Reilly ◽  
L. McLaughlin ◽  
G. Gilleran ◽  
M. Tuohy ◽  
...  
Keyword(s):  
High Temperature ◽  
Anaerobic Digestion ◽  
High Rate

scholarly journals High-Rate Moving-Bed Biofilm Anaerobic Digestion for Waste Activated Sludge Treatment

2014 ◽  
Vol 12 (6) ◽  
pp. 501-509
Author(s):  
NGO Van Anh ◽  
VUONG Thi Huyen ◽  
LE Van Chie ◽  
NGUYEN Thi Ha ◽  
Mitsuharu TERASHIMA ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Activated Sludge ◽  
High Rate ◽  
Waste Activated Sludge ◽  
Sludge Treatment ◽  
Moving Bed

High-rate OVPE-GaN growth by the suppression of polycrystal formation with additional H2O vapor in a high-temperature condition

2020 ◽  
Vol 13 (9) ◽  
pp. 095504
Author(s):  
Ayumu Shimizu ◽  
Shintaro Tsuno ◽  
Masahiro Kamiyama ◽  
Keiju Ishibashi ◽  
Akira Kitamoto ◽  
...  
Keyword(s):  
High Temperature ◽  
High Rate ◽  
High Temperature Condition

Effects of Various Sewage Sludge Treatment Processes on the Survival of Potato Cyst-Nematodes (Globodera spp.) and the Implications for Disposal

1989 ◽  
Vol 21 (8-9) ◽  
pp. 909-916
Author(s):  
A. M. Spaull ◽  
D. M. McCormack ◽  
E. B. Pike
Keyword(s):  
Anaerobic Digestion ◽  
Potato Cyst Nematodes ◽  
Cyst Nematodes ◽  
Sludge Treatment ◽  
Treatment Processes ◽  
Sewage Sludge Treatment ◽  
Thermophilic Digestion ◽  
C 30 ◽  
Effluent Exposure ◽  
Potato Crops

Samples of sewage sludges, taken over a 12-month period from 9 Scottish sewage works, contained on average 0.24 cysts of Globodera spp. (potato cyst-nematodes) of which 11% were viable. The incidence was not significantly related to season or to the presence of vegetable-processing effluent. Exposure of cysts in sludge to mesophilic anaerobic digestion (35 °C, 30 min) cold anaerobic digestion (9 weeks), pasteurisation (70 °C, 30 min) and aerobic thermophilic digestion (60 °C, ld) reduced viability of eggs within the cysts by almost 100%. Sludges so treated can therefore be considered to be free from infection risk to potato crops, although the non-infective cysts may still be recovered. Treatment with lime at pH 11.5 (20 °C, 24 h), by aerobic stabilisation in an oxidation ditch (7 weeks) and by activated-sludge treatment (5d) did not reduced viability acceptably. Accelerated cold digestion did not reduce viability sufficiently after the usual 15 weeks but rendered eggs completely non-viable after 21 weeks. The results show that even sludge treated to destroy viable cysts should not be applied to land used for growing seed potatoes and subject to testing for freedom from infestation. Treatment destroying viability should increase the acceptability of sludge for ware potato growers, although the numbers of cysts applied in untreated sludge would be unlikely to increase significantly levels of cysts in soils already infested.

scholarly journals An electrode-assisted anaerobic digestion process for the production of high-quality biogas

2019 ◽  
Vol 79 (11) ◽  
pp. 2145-2155 ◽  
Author(s):  
K. Yanuka-Golub ◽  
K. Baransi-Karkaby ◽  
A. Szczupak ◽  
L. Reshef ◽  
J. Rishpon ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
High Efficiency ◽  
Community Analysis ◽  
Microbial Community Analysis ◽  
High Rate ◽  
Production Yield ◽  
Organic Load ◽  
Electrolysis Cell ◽  
Biogas Upgrading ◽  
Ch4 Production

Abstract Biogas is a sustainable, renewable energy source generated from organic waste degradation during anaerobic digestion (AD). AD is applied for treating different types of wastewater, mostly containing high organic load. However, AD practice is still limited due to the low quality of the produced biogas. Upgrading biogas to natural gas quality (>90% CH4) is essential for broad applications. Here, an innovative bio-electrochemically assisted AD process was developed, combining wastewater treatment and biogas upgrading. This process was based on a microbial electrolysis cell (MEC) that produced hydrogen from wastewater at a relatively high efficiency, followed by high-rate anaerobic systems for completing biodegradation of organic matter and an in situ bio-methanation process. Results showed that CH4 production yield was substantially improved upon coupling of the MEC with the AD system. Interestingly, CH4 production yield increase was most notable once circulation between AD and MEC was applied, while current density was not markedly affected by the circulation rates. The microbial community analysis confirmed that the MEC enhanced hydrogen production, leading to the enrichment of hydrogenotrophic methanogens. Thus, directing soluble hydrogen from the MEC to AD is plausible, and has great potential for biogas upgrading, avoiding the need for direct hydrogen harvesting.

Performance evaluation of mesophilic semi-continuous anaerobic digestion of high-temperature thermally pre-treated olive mill solid waste

2019 ◽  
Vol 87 ◽  
pp. 250-257 ◽  
Author(s):  
Antonio Serrano ◽  
Fernando G. Fermoso ◽  
Bernabé Alonso-Fariñas ◽  
Guillermo Rodríguez-Gutiérrez ◽  
Sergio López ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
High Temperature ◽  
Anaerobic Digestion ◽  
Solid Waste ◽  
Olive Mill Solid Waste ◽  
Olive Mill
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