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   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Civil and Environmental Engineering</dim:field>
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   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">1949</dim:field>
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   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Civil and Sanitary Engineering, 1949.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Bibliography: leaf 63.</dim:field>
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   <dim:field mdschema="dc" element="title" lang="en_US">The effect of sludge age on activated sludge sewage treatment</dim:field>
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   	&lt;Title>The effect of sludge age on activated sludge sewage treatment&lt;/Title>
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