A　hybrid　process　of　conventional　treatment　UF-BPAC　(biological　powder　activated　carbon　addition　on　immersed　ultrafiltration　membrane　bioreactor)　was　evaluated　for　the　treatment　of　taste　and　odor　in　algal-rich　water　simulated.　The　results　confirmed　that　in　the　immersed　ultrafiltration　membrane　bioreactor　PAC　had　sufficient　adsorption　and　long-term　biodegradation　of　dissolved　organic　materials　which　cannot　be　removed　by　ultrafiltration　membrane　alone.　UF-BPAC　processes　could　intensify　the　conventional　treatment.　Through　the　advanced　treatment　of　UF-BPAC,　the　average　removal　ratios　of　DOC　and　UV254　increased　19.6%　and　30%　compared　with　the　conventional　treatment　process,　respectively.　Perfect　ammonia　removal　ratio　(82.5+/-5.5%)　was　also　recieved　through　hybriding　the　conventional　treatment　process　and　UF-PAC　process.　The　major　taste　and　odor　compounds　from　the　raw　water,　2-MIB　and　geosmin　both　fell　below　the　odor　threshold,　which　guaranteed　the　effluent　quality.