%0 Journal Article
%T Planted Sludge Drying Beds in Treatment of Faecal Sludge from Ouagadougou: Case of Two Local Plant Species
%A Sawadogo Bienvenue Joceline
%A Martine Kon¨¦
%A Ouattara Yacouba
%A Yonli H. Ars¨¨ne
%J Journal of Water Resource and Protection
%P 697-705
%@ 1945-3108
%D 2016
%I Scientific Research Publishing
%R 10.4236/jwarp.2016.87057
%X Management
of wastewater is a concern of developing countries. In Burkina Faso, an on-site
septic system installed on the property is predominant and those systems
product high quantities of faecal sludge which are not treated adequately
before discharge. Our country is mainly fed by surface water, while water is
the main vector of many diseases. So it is very important to manage efficiently
wastewater and faeces. The treatment of faecal sludge by planted beds can use
local persistent emergent plants like <i>Andropogon
gayanus</i> (LPA) and <i>Cymbopogon nardus</i> (LPN). Those planted beds are compared to a non-planted bed (sludge drying bed)
(LT). Treating raw sludge (BB) we got the yield over 90% concerning the
biological oxygen demand (BOD<sub>5</sub>) for the LPA while the two others
gave performances of 75% and 76% respectively. Regarding the chemical oxygen
demand (COD), LPN gave better yields with 77% of removal against 71% and 69%
for LPA and LT respectively. Overall, the pilots assured removal of
orthophosphates varying between 77% and 79%, while the Kjeldahl nitrogen is
removed by the various beds with respective fields of 94%, 96.5% and 97.5% for
LPN, LPA and LT. The microbiological pollution abatement is in the order of 1
log unit on average for all beds.
%K Sludge Drying Bed
%K &lt
%K i&gt
%K Andropogon gayanus&lt
%K /i&gt
%K &lt
%K i&gt
%K Cymbopogon nardus&lt
%K /i&gt
%K Planted Beds
%K BOD&lt
%K sub&gt
%K 5&lt
%K /sub&gt
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=67307