Fig. 2.
From: Heavy metal removal using a fixed bed bioreactor packed with a solid supporter
A diagram shows the composition of the fixed bed bioreactor which is composed of a glass column packed with luffa pulp as a solid supporter (1) and connected to a hot plate with a magnetic stirrer (2), a peristaltic pump (3), an air pump (4), two air filters (5), and a conical reservoir which contains the heavy metal contaminated wastewater sample (6). All connections were made using flexible hoses