Simultaneous removal of nitrate and diethyl phthalate using a novel sponge–based biocarrier combined modified walnut shell biochar with Fe3O4 in the immobilized bioreactor

• Liang XuXi'an University of Architecture and Technology
• Junfeng SuXi'an University of Architecture and Technology
• Tingling HuangXi'an University of Architecture and Technology
• Guoqing LiXi'an University of Architecture and Technology
• Amjad AliXi'an University of Architecture and Technology
• Jun Wei ShiXi'an University of Architecture and Technology