The present invention relates generally to a system and method for treating wastewater in a filter media apparatus having a draft tube system. The filter media may be walnut shell media.
申请公布号
US2011174746(A1)
申请公布日期
2011.07.21
申请号
US200913120501
申请日期
2009.09.23
申请人
FELCH CHAD L;HOWDESHELL MICHAEL;LORGE ERIC A;KUMFER BRYAN J;MUNSON STUART J;PATTERSON MATTHEW
发明人
FELCH CHAD L.;HOWDESHELL MICHAEL;LORGE ERIC A.;KUMFER BRYAN J.;MUNSON STUART J.;PATTERSON MATTHEW
