According to Action B4 in the proposal, a composting trial (pile forming) has been carried out in CTAEX in order to assess the neutralization of microorganisms in sewage sludge.

<div style="text-align: justify;"> Pile composition was:</div> <table border="1" cellpadding="0" cellspacing="0" style="width:511px;" width="511"> <tbody> <tr> <td nowrap="nowrap" style="width:119px;height:20px;"> <p> <strong>STRAW</strong></p> </td> <td nowrap="nowrap" style="width:181px;height:20px;"> <p> <strong>HORSE MANURE +</strong></p> <p> <strong>STRAW</strong></p> </td> <td nowrap="nowrap" style="width:131px;height:20px;"> <p> <strong>GREEN SWEET CORN</strong></p> </td> <td nowrap="nowrap" style="width:80px;height:20px;"> <p> <strong>SEWAGE SLUDGE</strong></p> </td> </tr> <tr> <td nowrap="nowrap" style="width:119px;height:27px;"> <p> <strong>38%</strong></p> </td> <td nowrap="nowrap" style="width:181px;height:27px;"> <p> <strong>32%</strong></p> </td> <td nowrap="nowrap" style="width:131px;height:27px;"> <p> <strong>20%</strong></p> </td> <td nowrap="nowrap" style="width:80px;height:27px;"> <p> <strong>10%</strong></p> </td> </tr> </tbody> </table> <p> &nbsp;</p> <p style="text-align: justify;"> Humidity, temperature and CO2 percentage is daily controlled by water input and turning.</p> <p style="text-align: justify;"> Anaerobic digestion progress is verified by periodic analyses of the mixture when significant changes are noticed.&nbsp;</p> <div> &nbsp;</div>