<prompt> A type of teiary waste water treatment process is -Reverse osmosisSedimentationBothNeither  <response>: Sewage treatment Primary treatment : Physical treatment to remove solids from the liquid Secondary treatment : Bilogical treatment brought about by aerobic and anaerobic bacteria Teiary treatment : Improving fuher the quality of effluent advanced waste treatment process, sludge stabilisation and dewatering, assist sedimentation and sludge treatment chemical treatment by the addition of coagulants Ref: Park 25th edition Pgno : 800 