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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi All, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I am in <st1:country-region w:st="on"><st1:place
w:st="on">Sri Lanka</st1:place></st1:country-region> where industries are
starting to look at the advantages of converting their sewage and kitchen waste
treatment plants to biogas plants. My question is; <o:p></o:p></span></font></p>
<ul style='margin-top:0in' type=disc>
<li class=MsoNormal style='color:navy;mso-list:l1 level1 lfo2'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial'>Can
it be guaranteed that this slurry is free of all sewage pathogens and
hence can be safely used as fertilizer? <o:p></o:p></span></font></li>
</ul>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The contractor has recommended secondary
aerobic treatment to the slurry; <o:p></o:p></span></font></p>
<ul style='margin-top:0in' type=disc>
<li class=MsoNormal style='color:navy;mso-list:l1 level1 lfo2'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial'>Does
the slurry leaving the AD require secondary aerobic treatment? <o:p></o:p></span></font></li>
<li class=MsoNormal style='color:navy;mso-list:l1 level1 lfo2'><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial'>Is the
BOD, COD content of the slurry adequate for aerobic treatment with MLSS of
1500-3000?<o:p></o:p></span></font></li>
</ul>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The employers are not keen on using the
slurry as fertilizer due to the chance that pathogens can exist. Hence, the
agreement to send the slurry through aerobic treatment and then into an inland
surface waterbody. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Best regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Kshanika Goonesekera<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:country-region w:st="on"><st1:place w:st="on"><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Sri Lanka</span></font></st1:place></st1:country-region><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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