High-Rate Anaerobic Wastewater Treatment

2005 ◽  
pp. 135-162 ◽  
Author(s):  
Hans-Joachim Jördening ◽  
Klaus Buchholz
2020 ◽  
Vol 299 ◽  
pp. 122598 ◽  
Author(s):  
Heng Xu ◽  
Kaijun Wang ◽  
Xiaoqian Zhang ◽  
Hui Gong ◽  
Yu Xia ◽  
...  

1993 ◽  
Vol 27 (5) ◽  
pp. 749-756 ◽  
Author(s):  
P. Arne Alphenaar ◽  
Ron Sleyster ◽  
Peter De Reuver ◽  
Gert-Jan Ligthart ◽  
Gatze Lettinga

1997 ◽  
Vol 35 (10) ◽  
pp. 199-206 ◽  
Author(s):  
Jules B. van Lier ◽  
Salih Rebac ◽  
Gatze Lettinga

Anaerobic wastewater treatment is an attractive and generally accepted technology for the treatment of various types of medium- and high-strength wastewaters. So far, this treatment technology is mostly applied at the mesophilic temperature range between 25 and 40°C. However, results of recent research conducted under both psychrophilic (< 20°C) and thermophilic (> 45°C) conditions, reveal that temperature is not a limiting factor in applying anaerobic treatment, provided the appropriate process design is chosen. Temperature has a considerable impact on various biological and physical factors of the anaerobic conversion process. For instance, the biogas production rate is reduced to a minimum at low temperatures, while it can reach extreme values under thermophilic conditions. In sludge bed systems, the biogas production rate determines the degree of mixing between the biomass and the wastewater and should, therefore, be considered in the process design. Other impacts of temperature are related to inhibition effects under thermophilic conditions and to a non-desirable accumulation of non- or partly degradable organic matter under psychrophilic conditions. Obviously, these effects may hamper the utility of the commonly applied single stage reactor systems. However, by adapting the process design to the expected prevailing conditions inside the reactor, the loading potentials and overall stability of the anaerobic high-rate process may be distinctly improved.


2008 ◽  
Vol 57 (8) ◽  
pp. 1137-1148 ◽  
Author(s):  
Jules B. van Lier

Decades of developments and implementations in the field of high-rate anaerobic wastewater treatment have put the technology at a competitive level. With respect to sustainability and cost-effectiveness, anaerobic treatment has a much better score than many alternatives. Particularly, the energy conservation aspect, i.e. avoiding the loss of energy for destruction of organic matter, while energy is reclaimed from the organic waste constituents in the form of biogas, was an important driver in the development of such systems. Invoked by the present greenhouse alert, the energy involved is nowadays translated into carbon credits, providing another incentive to further implement anaerobic technology. Anaerobic conversion processes, however, offer much more than cost-effective treatment systems. Selective recovery of metals, effective desulphurization, recovery of nutrients, reductive detoxification, and anaerobic oxidation of specific compounds are examples of the potentials of anaerobic treatment. This paper presents a survey on the state of the art of full-scale anaerobic high-rate treatment of industrial wastewaters and highlights current trends in anaerobic developments.


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