TY - BOOK AU - Tubig, Ramon Jeriko H. TI - A comparative study on the effectiveness of commercial and natural flocculating agents AV - PHS TD 430 .T79 2010 PY - 2010/// CY - Las Piñas City, Philippines PB - Southville International School and Colleges KW - Water KW - Purification KW - Flocculation KW - Water treatment chemicals KW - Comparative studies KW - Natural flocculants KW - Commercial flocculants N1 - Includes bibliographical references ER -