ABSTRACT

In this study, Cephalosporin C Antibiotic Residues (CPCAR) supplied from a pharmaceutical factory in Hebei province was used as representative one of ARs.

2.2 Hydrothermal pretreatment

Pilot-scale HTPT experiments were carried out in a self-built hydrothermal apparatus system having a capacity of treating maximum 1.2 t CPCAR for a batch experiment, which sketch diagram is depicted in Figure 1. It mainly consists of a steam boiler with a capacity of 1 t/h steam (180-190 °C, 1.1-1.3 Mpa)

1 INTRODUCTION

Antibiotic Residues (AR), one type of typical biofermentative process residues from medicals production, are difficult to be handled and utilized due to their high contents of “bound” water which is refractory to be mechanically removed, just like water rich municipal sludges (Neyens et al. 2004). Target medicals remaining in them frequently fail conventional wastewater treatment processes. A new technology to dispose and reuse them is in urgent need by the antibiotic manufacturers, especially those in China producing and exporting most of antibiotic medicals for the world.