Produced water treatment by semi-continuous sequential bioreactor and microalgae photobioreactor  

作　　者：Nur Farahah Mohd Khairuddin Nadeem Khan Saravanan Sankaran Wasif Farooq Irshad Ahmad Isam H.Aljundi 

机构地区：[1]Membranes and Water Security IRC,King Fahd University of Petroleum and Minerals(KFUPM),Dhahran,Saudi Arabia [2]Bioengineering Department,King Fahd University of Petroleum and Minerals(KFUPM),Dhahran,Saudi Arabia [3]Chemical Engineering Department,King Fahd University of Petroleum and Minerals(KFUPM),Dhahran,Saudi Arabia

出　　处：《Bioresources and Bioprocessing》2024年第1期763-775,共13页生物资源与生物加工(英文)

基　　金：Membranes and Water Security IRC,KFUPM.Funding no.INMW2304。

摘　　要：Produced water(PW)from oil and gas exploration adversely affects aquatic life and living organisms,necessitating treatment before discharge to meet effluent permissible limits.This study first used activated sludge to pretreat PW in a sequential batch reactor(SBR).The pretreated PW then entered a 13 L photobioreactor(PBR)containing Scenedesmus obliquus microalgae culture.Initially,10%of the PW mixed with 90%microalgae culture in the PBR.After the exponential growth of the microalgae,an additional 25%of PW was added to the PBR without extra nutrients.This study reported the growth performance of microalgae in the PBR as well as the reduction in effluent’s total organic carbon(TOC),total dissolved solids(TDS),electrical conductivity(EC),and heavy metals content.The results demonstrated removal efficiencies of 64%for TOC,49.8%for TDS,and 49.1%for EC.The results also showed reductions in barium,iron,and manganese in the effluent by 95,76,and 52%,respectively.

关 键 词：Produced water Wastewater treatment Scenedesmus obliquus Activated sludge Sequential batch reactor PHOTOBIOREACTOR 

分 类 号：X70[环境科学与工程—环境工程]