Research on the Effects of Modified HDPE for Wastewater Treatment

MBBR processes improve reliability, simplify operation and require less space than traditional wastewater treatment systems. The performance of biological membrane carriers is very important to MBBR operating efficiency. Modified HDPE material is more hydrophilic and electropositive. The experiment indicates that: The grafting percent is 3.67% at 40 min exposing time in Acetone-AA-BP system. The outflow COD Cr and NH 3 -N removal efficiency is 87.57~93.12% and 68.82~76.33% respectively in modified HDPE system. The outflow COD Cr and NH 3 -N concentration is content to II series in Discharge standard of water pollutants (DB 11/307-2005).