Research Center for Eco-Environmental Sciences;
Chinese Academy of Sciences;
Beijing 100085;
China;
University of Chinese Academy qf Sciences;
Beijing 100049;
China;
Advanced Technology R&D Center;
Mitsubishi Electric Corporation;
Hyogo 661-8661;
Japan;
Offshore; oilfield; Hydroxyl; radical; Plasma; Polyacrylamide(PAM); Produced; wastewater;