Try it this way:
LANG=CLANG=iso-8859-1 sed -i -e "se"s/'//g" -e's/'//g' -e's/[\d128-\d255]//g' -e's/\x0//g' or betteryou might find this useful (will replace non-printable and single quotes):
LANG=iso-8859-1 sed -i -e"s/'//g" -e's's/'[^[:print:]]//g' -e's;s/[\d128-\d255]'\''//g' -e'sg;s/\x0'//g' filename