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Water 2010, 2(1), 101-119; doi:10.3390/w2010101
Article

Anaerobic Treatment of Concentrated Black Water in a UASB Reactor at a Short HRT

1,2,* , 1,2
,
2
 and
1,2
1 Wetsus, Centre of Excellence for Sustainable Water Technology, Agora 1, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands 2 Sub-Department of Environmental Technology, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands
* Author to whom correspondence should be addressed.
Received: 2 February 2010 / Revised: 24 February 2010 / Accepted: 25 February 2010 / Published: 26 February 2010
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Abstract

This research describes the feasibility of applying a UASB reactor for the treatment of concentrated black (toilet) water at 25 °C. On average 78% of the influent load of COD at an HRT of 8.7 days was removed. Produced methane can be converted to 56 MJ/p/y as electricity and 84 MJ/p/y as heat by combined heat and power (CHP). Minimum reactor volume at full scale was calculated to be 63L per person (for black water containing 16 gCOD/L produced at 5 L/p/d) and this is more than two times smaller than other type of reactors for anaerobic treatment of concentrated black water.
Keywords: black water; anaerobic treatment; UASB reactor; sanitation; separation at source black water; anaerobic treatment; UASB reactor; sanitation; separation at source
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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De Graaff, M.S.; Temmink, H.; Zeeman, G.; Buisman, C.J.N. Anaerobic Treatment of Concentrated Black Water in a UASB Reactor at a Short HRT. Water 2010, 2, 101-119.

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